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FishSAFE Website Terms and Conditions

Terms and Conditions - FishSafe Website This website, www.fishsafe.org and any associated sites, ("the Site") is provided to you ("you" meaning any person, firm, partnership, corporate body or any other legal person accessing or otherwise using, or benefitting from the use of, this Site) by FLTC Services Limited, a company incorporated under the Companies Acts (Registered No. SC348751) and havin...

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FishSAFE Unit Terms and Conditions

Terms and Conditions of Supply, Use and Maintenance of the FishSAFE Unit and Related Database Introduction These are the Terms and Conditions which govern the supply, use and maintenance of FishSAFE Units and the initial provision of (and subsequent updating of) the Data and Database associated with such Units.  We are FLTC Services Limited ("FLTCS") a not-for-profit organisation incorporated u...

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Terms & Conditions

Please select from the two choices below, to either read the terms and conditions for the FishSafe website or the FishSafe alarm unit: FishSafe Website FishSafe Alarm Unit  

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Useful Links

Oil & Gas UK Ltd               FLTC Services Limited               Scottish Fishermen's Federation               National Federation of Fishermen's Organisation               Kingfisher Information Services  

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Funding

Fishing Safely in Changing European Waters 2016-2019 Provision of FishSAFE Information, the Kingisher Fortnightly Bulletin and the Yellow Card, development of new terminology and symbology for oil and gas hazards during and after decommissioning and provision of enhanced images of such hazards form part of the project. It incorporates a review of criteria to include a pipeline span in Fish...

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Feedback

If you have some feedback to offer, or have a question you would like to ask, please complete the form below and we will contact you as soon as possible.

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About Us

The FishSAFE web site has been developed by FLTC Services Limited ("FLTCS") to promote fishermen's awareness of offshore surface and subsea structures within the UK Continental Shelf. FLTCS was formed to promote or supply information systems and devices which enhance safety in connection with oil and gas infrastructure in UK Waters. The parent company of FLTCS was formed by Oil and Gas UK, the ...

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Repair and Maintenance Procedure

If you have any issues with your FishSAFE unit relating to repairs or maintenance, please follow the procedures outlined below. Repairs during Warranty Period of Three Years A repair service is available to remedy any defect which may arise through ordinary use of the unit within three years from the date on which the units were delivered to FLTC Services Limited by the manufacturer. This ap...

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Data Updates

The update process differs depending which FishSAFE Unit you have installed on your vessel. For FishSAFE version 2 units (available from 2009-2019)  Please download the latest file from the download page, unzip and copy the *.dat file to an SD card before inserting into your FishSAFE unit   For FishSAFE version 3 units (available from summer 2020 - )  Providing your unit ...

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Use of the FishSAFE Unit

Please click here for the FishSAFE Unit Operation Manual (Opens in PDF Format). Within this document, there is information relating to: Installation FishSAFE overview Operating procedures Visual and audible alarms Updating the unit Unit repairs For information relating to the prcedure for any repair and maintenance of the FishSAFE unit, pl...

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How to buy a FishSAFE Unit

How to purchase a FishSAFE Unit Please click here to download the FishSAFE Unit Purchase Order Form. This Order Form is in Adobe PDF format. Print off the downloaded form and complete the details where requested. You can email the form to us at accounts@sff.co.uk or post the form to FLTC Services Limited, 24 Rubislaw Terrace, Aberdeen AB10 1XE. Once we receive the form and accept y...

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Latest FishSAFE News

FLTC Services Limited (FLTCS) is pleased to announce that the upgraded FishSAFE units (Mark 3) are hoped to be available later this year. This unit incorporates innovative features such as a touch screen, tracker ball facility and updating and messaging online among others. It has already proved popular in sea trials with skippers appreciating its benefits compared with previous versions. Grant...

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Glossary

Abandon To cease work on a well which is non-productive, to plug off the well with cement plugs and salvage all recoverable equipment . Also used in the context of field abandonment. Appraisal Well A well drilled as part of an appraisal drilling programme which is carried out to determine the physical extent, reserves and likely production rate of a field. Associated Gas Natural...

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Seismic Surveys

Seismic surveys are carried out extensively in the North Sea to search for potential reserves of oil and gas in the subsea rock formations. Large seismic survey vessels are used to tow steamers suspended below the surface which carry hydrophones. Sound waves are transmitted from the vessel using compressed air guns which travel down through the seabed and reflect back from the different layers of...

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Moorings

Offshore mooring buoys are commonly used on the UK Continental Shelf. A Single Point Mooring buoy (SPM) as seen on the right, is used by a shuttle tanker to secure to during loading/unloading operations. The buoy is attached to the subsea facility by flexible risers and is held in place by anchors and should be given a wide berth at all times. The images below show different moori...

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Pipelines

As stated on admiralty charts "Mariners are advised not to anchor or trawl in the vicinity of pipelines". The note goes on to say that damage to oil or gas pipelines could cause your vessel to lose buoyancy through escaping gas. Seabed conditions such as sand waves can create spans on pipelines which fishing gear can become snagged under and put your vessel in severe danger. Pipelines are used ...

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Subsea Templates & Manifolds

Templates A subsea template is a large steel structure which is used as a base for various subsea structures such as wells and subsea trees and manifolds. The image below shows a number of wellheads on a subsea template: The wellheads can be seen with their guidebases (4 x white rods) pertruding from each corner, which are used to locate other equipment, i.e. trees. The size of a templ...

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Surface Structures

Platforms, FPSOs, Drilling and Semi Submersible Rigs Alwyn North Platform FPSO whist off-loading Jack Up Drilling Rig Semi Submersible Drilling Rig   Platforms Most production platforms are placed directly above the wells from which they are extracting oil or gas. The visible topsides a...

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Contact us

The FishSAFE website is managed by Kingfisher Information Services on behalf of FLTC Services Limited. If you have a query, comment, or suggestion in relation to this website or the FishSAFE Unit, please contact Kingfisher or complete the form within the Feedback section of this website.   Kingfisher contact details: Kingfisher Information Services Sea Fish Industry Authority ...

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FishSafe Unit

Product Information For 10 years the original FishSAFE unit has been protecting fishing boat skippers in the North Sea, warning them of approaching hazards and clearly displaying where surface and subsea structures are located. The new and much improved FishSAFE unit is now available for supply. With many components of the original FishSAFE now becoming obsolete, FLTC Services Limited ha...

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Subsea Trees

Subsea trees are structures attached to the top of subsea wells to control the flow of oil / gas to or from a well. When attached to a subsea well the combined structures can extend to 7 metres above the seabed in height. They are made up of pipework and valves within a supporting steel framework and present a substantial hazard to towed fishing gear. When several subsea trees and asso...

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Subsea Wellheads

Production Wells When a well is drilled the structure placed on the seabed is called a wellhead. There may be a single wellhead, though often there may be several units grouped together to form a block. Attached to the top of the wellhead are the control units called subsea trees. The wellhead assembly is usually contained within a supporting structure called a template, with many...

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Subsea Structures

Subsea Structures The recovery of oil and gas from the subsea environment involves the use of many  seabed structures. These seabed structures present snagging dangers to the fishing community. Many subsea structures are protected by safety zones, though others do not have the benefit of safety zones and therefore, it is vital that their positions are known. The positions of all subsea st...

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Offshore Structures

There are many different types of structures associated with the offshore oil and gas industry on the UK Continental Shelf. Oil platforms and drilling rigs are easily visible but below the surface there are many more structures which if not avoided may become serious hazards to fishing operations.

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Subsea Safety Zones

Not all structures associated with the offshore oil and gas industry indicate their presence at the surface. For those subsea structures requiring a safety zone, a Statutory Instrument (S.I.) will be created to offer protection to / from other users of the sea. Subsea structures form a major part of the offshore oil and gas infrastructure on the UK Continental Shelf. These structures c...

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Surface Safety Zones

Offshore operators are keen to get the message across to fishermen working in and around offshore installations that safety zones are present for the protection of all parties and they must not be entered at anytime during fishing operations.

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Safety Zones

UK Continental Shelf Safety Zones Offshore operators are becoming increasingly concerned for the safety of their assets and the fishermen working around them. Recently there have been many incidents where fishing vessels have entered safety zones whilst carrying out fishing operations and several of these incidents have resulted in serious damage to subsea equipment and more seriously have put at...

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News

DSV Seven Pegasus - Marine Installation Activity (Blythe, Elgood and Thames Pipeline)

Diving and construction activities being undertaken by DSV Seven Pegasus around Blythe, Elgood and the Thames Pipeline. The vessel will be undertaking dive operations in the vicinity of Blythe, Elgood and the Thames Pipeline.  The vessel will perform various installation, tie-in, mattress laying and metrology activities using divers and ROV. All activities will be performed by the dynamically positioned Dive Support Vessel Seven Pegasus.

The vessel will be undertaking dive operations in the vicinity of Blythe, Elgood and the Thames Pipeline.  The vessel will perform various installation, tie-in, mattress laying and metrology activities using divers and ROV

 

All activities will be performed by the dynamically positioned Dive Support Vessel Seven Pegasus

 

Call-sign: A8SH2, MMSI: 636 014 212

LOA: 132 metres, Breadth: 22 metres

 

The vessel will be using twin diving bells to deploy the divers and the crane to manoeuvre and install subsea equipment.  The vessel will also be using a remotely operated vehicle (ROV) in the water.  These activities this will severely restrict her ability to manoeuvre.

 

During all diving operations, the vessel will be flying flag Alpha with restricted movement and unable to perform course changes or manoeuvring.

Type See detailed map on our bulletin website
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Survey - Golden Eagle Site Survey (Ref: 1265)

A 17.5 day geophysical site survey in Blocks 13/30, 14/26, 14/27, 14/28, 19/5, 20/1, 20/2, 20/3, 19/10, 20/6, 20/7 and 20/8. Using Vessel MV Kommandor between 20th August - 30th September 2021

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

CNOOC Petroleum

 Europe Limited

Kommandor

N/A

20/08/2021 - 30/09/2021

For 17.5 Day

13, 14, 19, 20

Type See detailed map on our bulletin website
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Pelagic ecosystem survey in western Channel and eastern Celtic Sea (PELTIC)

RV Cefas Endeavour (Call Sign: VQHF3) intends to undertake an annual fishing survey for stock assessment between 4th October 2021 until 7th November 2021. This is an annual acoustic and trawl survey mapping and quantifying the small pelagic fish community for stock assessment and monitoring the health of the ecosystem.

RV Cefas Endeavour (Call Sign: VQHF3) intends to undertake an annual fishing survey for stock assessment between 4th October 2021 until 7th November 2021. Survey operations will include the sampling of water at pre-determined sampling stations and mid-water trawls along pre-determined transects (the location of the trawls along the transect will be determined when on-site through the detection fish schools). Where static fishing gear is believed to be present in the vicinity of these operations, fishermen are requested to advise the vessel (and/or the designated contact below) with positions of such gear in order for it to be included within the survey planning.

Type See detailed map on our bulletin website
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Removal, service and re-installation of moorings in the Moray Firth.

Mariners are advised that the University of Aberdeen have removed hydrophone moorings and equipment at offshore locations in the Moray Firth. In addition please be advised that we intend to service and reinstall moorings and equipment in their existing locations in the inner Moray Firth.

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Geological Survey - Southern North Sea

Geo services Ltd are conducting a geological survey from 3 August - 8 October 2021 using the vessel 'Oceanic Vega' (LCHQ3). Oceanic Vega is towing10 Seismic cables 5Nm in length, 1600mtrs width and 8mtrs deep. The Oceanic Vega is accompanied by 3 support vessels. Ocean Fortune, GV Andrea and Kristenborg and is towing 10 Seismic cables 5Nm in length; 1600mtrs width and 8mtrs in depth. If anyone or knows of anyone who has static gear in this area, please contact the below.

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Construction of Wind Farm - Triton Knoll

Activities are continuing related to the development of the Triton Knoll wind farm, as detailed below. For background information visit: http://www.tritonknoll.co.uk/

 

Mariners are advised that the following vessels continue to be active at the Triton Knoll Offshore Wind Farm as outlined within previously issued NtM's:

 

The following vessels continue to be active at the Triton Knoll as outlined within previously issued NtM's 

Vessel Name

Type

Call Sign

MMSI

IMO

Operating Port

Commence Date

Seacat Intrepid

Crew Transfer

2HWU6

235107284

N/A

Grimsby

02/01/2020

Esvagt Froude

Service Operations Vessel

OWWN2

219590000

9703461

Grimsby

02/02/2020

Esvagt Wind 1

High Speed Craft

XPE6305

219019815

N/A

Esvagt Froude

02/02/2020

Seacat Courageous

Crew Transfer Vessel

2IDC8

235108711

N/A

Grimsby

25/04/2020

Windcat 11 Crew Transfer Vessel 2BIS9 235066459 N/A Grimsby 14/12/2020
Acta Orion Service Operations Vessel PCEN 244830883 9750268 Immingham 15/01/2021
HST Euan Crew Transfer Vessel MGQO3 232025959 9883974 Grimsby 15/01/2021
World Mistral Crew Transfer Vessel OWJT2 219018009 9681302 Grimsby 15/03/2021
Normand Fortress Service Operations Vessel LIKW3 258537000 9371218 Grimsby 15/03/2021
Seacat Enterprise Crew Transfer Vessel MAPS9 232006483 N/A Grimsby 25/04/2021
Windcat 44 Crew Transfer Vessel MFAA3 232021363 N/A Grimsby 09/08/2021

  Rover Alpha               Guard Vessel                        MLAS2       235010380   8959817   Grimsby               25/08/2021

 

All vessels can be contacted via VHF channel 16 when operational in field.

 

Construction activities carried out over the previous 7 Days:

  • Ongoing activities at Offshore Sub Station Platforms East & West continues.
  • Ongoing activities at Offshore foundations continues.
  • Wind Turbine Generator Installation & Commissioning and Service continues infield (90 of 90 WTG's installed - 20th September 2021).

Construction Activities planned for the next 7 days:

  • Ongoing activities at Offshore Sub Station Platforms East & West continues.
  • Ongoing activities at Offshore foundations continues.
  • Wind Turbine Generator Commissioning and Service continues.

 

*** Note ***

 

Application of Triton Knoll Wind Farm Safety Zones During Construction

The Secretary of State has granted the Application of Safety Zones on the Triton Knoll Wind Farm Project as follows:

  • 500m “rolling” safety zones around any structure where construction is being undertaken (as indicated by the presence of construction vessels).
  • 50m pre-commissioning safety zones surrounding partial structures or completed structures prior to commissioning.
 

 

Demarcation Buoys

Partrac Ltd have deployed x12 Demarcation Buoys and x2 Metocean Buoy at the Triton Knoll Offshore Wind Farm (TKOWF) to mark the perimeter of the TKOWF site boundaries.

 

Vessels are requested to leave a wide berth during the installation operations. The buoys will be deployed for a period of two years, and all equipment will be removed at the end of the installation.

 

Buoy

Structure

Latitude

Longitude

Individual Specification

TK01

South Cardinal

53°24.054'N

000°57.935'E

Pillar shaped with a south cardinal shaped top mark, exhibiting a Q (6) + L Fl 15s light character (5 nm nominal light range)  RECOVERED

TK02

Special Mark

53°24.568'N

000°54.433'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

TK03

Special Mark

53°26.132'N

000°50.008'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

TK04

Special Mark

53°27.457'N

000°45.927'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

TK05

South Cardinal

53°28.859'N

000°41.181'E

Pillar shaped with a south cardinal shaped top mark, exhibiting a VQ (6) + L Fl 10s light character (5 nm nominal light range)   RECOVERED

TK06

Special Mark

53°30.807'N

000°41.826'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

TK07

North Cardinal

53°32.196'N

000°44.248'E

Pillar shaped with a north cardinal shaped top mark, exhibiting a Very Quick (VQ) light character (5 nm nominal light range)

TK08

Special Mark

53°32.444'N

000°47.678'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range

TK09

North Cardinal

53°32.428'N

000°52.040'E

Pillar shaped with a north cardinal shaped top mark, exhibiting a Q light character (5 nm nominal light range)

TK10

Special Mark

53°29.595'N

000°55.306'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5 second (s) light character (5 nm nominal light range)

TK11

Special Mark

53°26.979'N

000°57.974'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

TK12

East Cardinal

53°24.368'N

001°00.228'E

Pillar shaped with an east cardinal shaped top mark, exhibiting a Q (3) 10s light character (5nm nominal light range)

TK13

Metocean Buoy

53°26.002'N

000°55.091'E

Triaxys metocean wave and current buoy (South) exhibiting a Fl (5) Y 20s light character (3 nm nominal light range)

TK14

Metocean Buoy

53°30.581'N

000°47.944'E

Triaxys metocean wave and current buoy (North) exhibiting a Fl (5) Y 20s light character (3 nm nominal light range)

 

Mariners are advised that all foundations monopiles have been installed and all inter-array and export cables have been installed.

 

Local Notice to Mariners Recently

NtM 001-2021 (05th January 2021)

NtM 002-2021 (20th January 2021)

NtM 003-2021 (17th March 2021)

NtM 004-2021 (24th March 2021)

NtM 005-2021 (06th April 2021)

NtM 006-2021 (16th April 2021)

NtM 007-2021 (18th May 2021)

NtM 008-2021 (29th June 2021)

NtM 009-2021 (29th July 2021)

NtM 010-2021 (20th August 2021)

 

Navigation Warning - 08th January 2021

 

Mariners are advised that the remnants of a Wave Rider Buoy sinker weight and partial rigging are located within the Triton Knoll Offshore Wind Farm Construction site at the following location;

 

53° 30.442N 000° 50.564E

 

It is advised that the partial rigging could potentially be floating up to 9.7m above the seabed, reducing the navigable safe water in the immediate area to 10m LAT.  Mariners are advised to avoid the indicated position by 250 metres.

 

Possible Dangers to Navigation - Properties of the polypropylene show that the rope is buoyant, this makes the line sensitive for thruster currents. Taking the site water depth into consideration (19.7m LAT) and the maximum expected height above seabed of the rope 9.7m the line is expected to be floating submerged at approximately -10m LAT. In addition, it is noted that over time sediments will be trapped between the fibres and the heavier rope may finally sink. The polypropylene rope may impose a risk to foul propellers / propulsion of vessels due to the buoyant nature of the rope. As the rope is submerged at a depth of ~-10m LAT the risk is considered minimum for vessels with a shallow draught (<5m) and medium for a vessel with a deeper draught (>5m). Over time sediments will be trapped between the fibres and the heavier rope may finally sink thereby reducing the risk to propellers/propulsion of vessels. The clump weight itself (chain) is expected to have sunk into the seabed and has no significant height above seabed. In addition, the edges of the clump weight are mostly rounded (chain), the risk the clump weigh imposes to fishing activities/gear is therefore considered to be minimal.

 

Navigation Warning - 16th March 2021

 

Mariners are advised that two UXO targets have been confirmed within the Triton Knoll Offshore Wind Farm Array.

 

Mariners are advised that the two confirmed targets are located within 20 metres water depth (LAT) and a 10 metre radius exclusion zone is required around each target.  The following table provides the coordinates and a description for each target.

 

Description of Target Latitude Longitude

Water Depth

(LAT) Metres

Required Exclusion

Zone (Metres Radius)

Archaeological - The item is thought to be an air-delivered bomb.  It appears to be in a stable condition and is resting on the seabed.  Marine growth and concretion cover the body, indicating it has been in situ for a significant duration. The tail section of the bomb is missing, which is typical of unexploded bombs from WWII found in these circumstances and there is a significant hole in the case. The dimensions and characteristics gathered are consistent with a 500kg German bomb. Considering the state of the bomb the Net Explosive Quantity of the bomb is likely to be <5kg. 53°31'50.249"N 00°47'45.908"E 20 10
Archaeological - The item is thought to be an air-delivered bomb.  It appears to be in a stable condition and is resting on the seabed.  Marine growth and concretion cover the body, indicating it has been in situ for a significant duration. The tail section of the bomb is missing, which is typical of unexploded bombs from WWII found in these circumstances and there is a significant hole in the case. The dimensions and characteristics gathered are consistent with a 500kg German bomb. Considering the state of the bomb the Net Explosive Quantity of the bomb is likely to be <5kg. 53°31'49.895"N 00°47'45.115"E 20 10

 

Navigation Warning - 25th May 2021

 

 

Mariners are advised that during a Man Overboard Recovery drill a “Dead Fred Casualty” was subsequently lost, presumed sunk to the seabed in the following position;

 

Latitude - 53° 30.27’N

Longitude - 000°40.55’E

 

Water Depth – 79m LAT

 

If the object is recovered, please contact the following in the following order.

  • Triton Knoll Marine Coordination Centre:
  • Email – tkmcc@smchse.com
  • Tel – 0045 82 13 62 19
  • Lee Cornwell - External Consultant – Marine Operations
  • Email - l.cornwell@tritonknoll.co.uk
  • M: +44 (0)7384 807293
Type See detailed map on our bulletin website
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XOCEAN USV Survey Operations - Irish Sea

Operations of remotely piloted Uncrewed Surface Vessels (USVs) are continuing in the Irish Sea, operating out of Carlingford Lough and Rhyl / Beaumaris harbour. There will up to 3 USV’s operational at any one time. Vessel details are listed in the linked attachment, with each weighing 750kgs, 4.5m in length, a beam of 2.2m and travel at 3.5kts. Operations will take place subject to weather from Sept to Nov 2021. A support vessel will escort the USV from the active ports to the port limits.

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Walney wind farms - rock placement at all turbine positions

A programme of work to protect the underwater fittings at the base of each turbine within the Walney wind farms is scheduled to start shortly. This will involve rock placement extending out for approx. 10 meters at the base of the turbines, including the offshore sub-station.

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Skye - Harris Subsea Electricity Cable

Mariners should be aware that a new subsea electricity cable between Ardmore (Skye) and Beacravik (Harris) has been installed within the corridor indicated. Charts and other datasets will be updated to reflect this new cable route once final as-laid positions have been received.

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Uncrewed Vessel Cable Route Survey - Dogger Bank C Export Cable

Dogger Bank Project will be carrying out a bathymetry survey of the Dogger Bank C export cable route using remotely piloted uncrewed Surface Vessels (USV).

The USVs will be mobilised from Hartlepool Marina where each will transit under escort to the survey area. Survey operations will be continuous, 24 hours a day, A support vessel will escort the USV throughout the operations from the harbour entrance and will then continue transiting towards the survey site until the area is safe & clear of hazards. Although the vessel is uncrewed, it is managed throughout the 24hour operation piloted remotely using 360 degree cameras and other navigational aids. Passing vessels are requested to maintain a minimum 500m safety distance from USV during operations, reducing speed to minimise wake disturbance.

Type See detailed map on our bulletin website
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Unexploded Ordnance (UXO) Survey - Sofia Offshore Windfarm Export Cable

Unexploded Ordnance (UXO) & Archaeological Target Identification Works are due to commence on 17th September 2021 within the Sofia Offshore Windfarm Export Cable Route (ECR) Areas. These works involve; Identification of Potential UXO’s by Remotely Operated Vehicle (ROV) and Archaeology Investigations within the ECR Areas. Any threat targets identified will be marked and an updated Notice to Mariners will be published.

The work site is located East of Redcar and North of Saltburn-by-the-sea and extends approximately 13km from the beach. No explosive ordnance disposal operations (EOD) will be conducted at the site during 2021. Voe Vanguard call sign:MBEN9 will be supported by the guard vessel 'Precision 1'. call sign: 2FCD2. 

 

As part of the operations a Met Buoy will be deployed. 

 

Met Buoy coordinates now updated.

 

 

Type See detailed map on our bulletin website
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Burbo Bank 2 wind farm - rock placement at all turbine positions

A programme of work to protect the underwater fittings at the base of each turbine within the Burbo Bank 2 wind farm is scheduled to start shortly. An expected start date of Wednesday 6 October 2021. This will involve rock placement extending out for approx. 10 meters at the base of the turbines, including the offshore sub-station.

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Jack-up rig "Noble Hans Deul" (NHnD) at the Southwark Location

NHnD will be carrying well operation at the Southwark location. This operation covers two well operations at the Southwark.

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Geotechnical Site Survey - Block 41/5

Geotechnical Site Survey in block 41/5: 1 borehole and 3 CPT's.

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Removal of Rosebank Field Metocean Monitoring Buoys

Buoys that were installed at the end of 2019, are now planned to be recovered before the end of 2021 - latest indication is late October / early September for recovery. They include: 3 x metocean monitoring buoys in the Rosebank Field area and 3 x subsurface buoys at depths of 40m, 160m, and 630m.

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Dredging - Area 457

Dredging will commence on the 1 October 2021 for a period of 10 weeks in the call off zone within Marine Aggregate Licence Area 457 (MA234). Dredging within this area is restricted to two active zones and a third call off zone. In order for dredging to occur within the third call off zone, at least 6 weeks notice is required prior to dredging can commence. In order for effective implementation and notification, this notice provides sufficient time prior to dredging is scheduled to commence.

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Leverett Site Survey

A rig site survey at the Leverett prospect in block 21/3d.

The purpose of the surveying work shall be to determine the seabed and geological conditions at the proposed well location and identify any geological, topographical, shallow gas hazards or environmental conditions which could impair the satisfactory emplacement of a drilling rig at the defined location and the subsequent drilling operations.

2D HR Seismic Survey

Sub-Bottom Profiler Pinger survey

Echo sounder Survey

Multi- Beam Survey

Visual Survey drop Camera

Type See detailed map on our bulletin website
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Geophysical Survey - Sandettie Bank

G-Tec will be undertaking a geophysical survey from the Geo Focus. The survey will consist of multibeam echo sounder, side scan sonar, sub bottom profiler and magnetometer equipment within a 1km-by-1km square area on the Sandettie Bank. The survey is scheduled to commence on the 25th September 2021 and will take 7 days to complete. The survey will follow a linear line plan with a 50m tow and vessels should stand off 500m from the survey vessel.

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Carradale - Arran North and South Subsea Cables Charting Errors

The charted locations of the Carradale to Arran subsea electricity cables in the Kilbrannan Sound may be inaccurate and are being reviewed. Any corrections required will be issued as soon as possible. Mariners should be aware that the true cable locations may be up to ~300m from the presently charted positions. The location of this hazard notice is not indicative of any true cable location and is for information only.

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Havhingsten Fibre Optic Cable - Installation Activities

Cable installation vessel, CS Recorder, will be carrying out cable installation operations along the route of the Havhingsten cable in the Irish EEZ and UK EEZ. From 21 September to 3 October 2021

Please be advised that installation of the Havhingsten fibre optic telecommunication cable system in the Irish Sea outside of the Irish 12 nautical miles is delayed due to ongoing vessel maintenance issues in; works are expected to re-commence from the 21 September. Works within the Irish 12 nautical miles are planned from December 2021.

 

The supplier of the Havhingsten cable is Alcatel Submarine Networks (ASN). Intertek are the environmental and permitting consultants.

 

The entire cable system will comprise marine elements that pass from Denmark to the UK (NE region); from the UK (NW) to the Republic of Ireland; with two segments installed into landfalls on the Isle of Man. 

 

The cable route for the western Irish Sea region is shown below, landing at Loughshinny in Ireland. Works in September-October 2021 will be undertaken from the Isle of Man 12nm and will stop at the Irish 12 nautical miles.

 

Installation will be via industry standard burial tools including water jetting and ploughing. Target cable burial depth is 1.5m below seabed level in the region.

 

It is anticipated that installation operations in UK/Irish waters will occupy up to a maximum 500m width (250m either side of cable). The cable itself will occupy only 40mm of the seabed.

 

Expected speed of installation will be approximately 17 km per day.

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Shetland HVDC Link (Noss Head HDD Operations)

UPDATE - Extension of Works: NKT, on behalf of Scottish Hydro Electric Transmission Plc, will be undertaking diving operations at Noss Head to assist with the horizontal directional drilled (HDD) exit points for the Shetland HVDC Link. The works are located approximately 400m offshore in around 19m of water.

The moorings have been deployed and will remain on site until the estimated completion date of the 20th October 2021. The locations of the moorings have been provided in this notice and charted in the attached NtM. Onshore HDD operations are taking place for three pipe ducts to be installed with trajectories that will emerge at the seabed around 400m offshore within the area identified as ‘Mooring Extent’ detailed in this notice, and shown in the attached NtM. Vessels are required to continue to maintain a safe distance from the ‘Mooring Extent’ area until the estimated completion date of 20th October 2021.

  • Within the boundaries of the mooring area, steel ducts have been pushed out from each of the three HDD exit points and extend up to 10 m into the water column at an angle of approximately 9º to the horizontal as shown in the NtM.
  • The RONA or Pulsar shall conduct a high-resolution survey of the HDD exit point. The Survey will involve the use of Multibeam Echosounder (MBES) and Sidescan Sonar (SSS). Most of the survey work has been completed however further survey work of this nature may take place before the estimated completion date.
  • The mooring spread has been installed for the dive vessel ISLE OF JURA to anchor when on station. The NtM shows the mooring and anchoring system when the ISLE OF JURA is on station for duct diver support works. There will be times when the mooring system is left in situ without the vessel attached.
  • The dive vessel ISLE OF JURA will leave its position temporarily and return to station in September to complete the remaining 4-5 day work phase for the vessel, the mooring system will remain in situ during this time.
  • When the mooring is left in situ all anchors will be clearly surface marked with marker buoys over the moorings. The size of the buoys is approx. 1.2m diameter and 1m high.
  • The buoys have lights Fl Y 5s 2M range (a single yellow flash every five seconds with a nominal range of 2 miles).
  • The buoys do not have radar reflector.
  • The vessel will display the Alpha flag during daylight and Red/White/Red lights during the hours of darkness.
  • The protruding ducts will be cut close to the seabed prior to the moorings being removed by the estimated completion date of 20th October 2021.
  • The moorings and anchors will only be of a temporary nature, once the installation works are completed, the mooring and anchors will be fully recovered.

 

Navigational Safety

All vessels are requested to always maintain a safe distance (500m) from the construction and survey vessels.

 

STAY A SAFE DISTANCE AWAY FROM DIVE FLAGS. Maintain a distance of at least 300 feet (90m) from diver down flags and buoys in open water and at least 100 feet (30m) in inlets or navigation channels.

 

Vessel (Isle of Jura) will display the Alpha flag during daylight and Red/White/Red lights during the hours of darkness.

 

The buoys are illuminated with the appropriate lights, a single yellow flash every five seconds with a nominal range of 2 miles (Fl Y 5s 2M range).

 

All vessels are required to comply with the COLREGS, especially rules 16 and 18 as the vessel will be restricted in her ability to manoeuvre.

 

Legal Notice Please be advised that this Notice to Mariners should be treated as official notice of the nature, duration and location of the works which are scheduled to take place. During the period of this notice, failure to remove equipment or entry into the identified location in a manner that would constitute a hazard to the operations described may be considered a breach of the Convention on International Regulations for Preventing Collisions at Sea 1972 and/or the Merchant Shipping Act 1995 (a breach of which can carry criminal sanctions).

 

Additionally, should any failure to remove any equipment within the notified location, or the presence of any vessel, prevent, obstruct, or delay the works, Scottish Hydro Electric Transmission Plc may consider taking legal action to remove the obstruction and/or seek damages for any delay, in addition to any legal costs in doing so.

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Penguins Field - Vessel Activity

Penguins Field Development - Bundle XT Tie-ins and DC2 Bundle XT Tie-ins, Gas Export & Tybalt Tie-ins, Leak Test and De-watering, Rockdumping

Seven Atlantic Vessel (Subsea 7) – De-Watering and Tie-Ins - Penguins Redevelopment Project - Infield 27/09/21 – Depart Field 25/11/21

  • DC2/DC3/DC4/DC5 Infield De-Watering and Controls Reconfiguration
  • Tie-In spools between Pan-W Towhead & DC2 Manifold
  • Tie-In spools between Pan-W Towhead & Pan-W XT
  • Pan-W Towhead & DC2 Manifold Controls Installation
  • PAN-W/DC2 Leak Test & Mattressing
  • DC3 Tie-Ins
  • DC7 Tie-Ins
  • Brownfield Scope – UT Checks

 

Rockdump Vessel (TBC) – Rockdumping - Penguins Redevelopment Project - Infield 14/10/21 – Depart Field 20/10/21

  • Reinstatement of rockdumping cover on DC4
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Areas of Exposure & Suspension - Carradale to Arran North Subsea Cable

Mariners should be aware that the Carradale to Arran North cable has areas of exposure and suspension.

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Seagreen Offshore Wind Farm – Deployment of Site Demarcation and Wave Data Buoys

Demarcation buoys have now been deployed to mark the boundary of the Seagreen offshore wind farm. Three wave data buoys are also deployed inside the site boundary.

On behalf of Seagreen Wind Energy Ltd, Seaway 7 have deployed temporary construction site demarcation and wave data buoys. The Seagreen Offshore Windfarm is now marked and lit as a construction area for the duration of the construction phase. A combination of cardinal and special marks have been deployed displaying the appropriate light and shape characteristics. The coordinates of each buoy are specified below and at the request of NLB, the cardinal marks at each corner of the development site will transmit via Automatic Identification System (AIS). Three wave data buoys have also been deployed within the confines of the construction area. MARINERS ARE REMINDED to navigate with caution and keep continued watch on VHF Ch.70/16 when navigating the area.

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Inch Cape Offshore Wind Farm - Development Area Site Investigations

Site investigation in the Development Area for the consented Inch Cape Offshore Wind Farm located within the Outer Firth of Tay.

Please be advised that Fugro will be performing site investigation works on behalf of Inch Cape Offshore Limited. The works are to be carried out within the Development Area (see Figure 1 below) for the consented Inch Cape Offshore Wind Farm located within the Outer Firth of Tay

 

The first phase of the site investigation works will commence on or after the 25th of September 2021, weather permitting and take up to 20 days to complete. The works will be undertaken using the vessel Despina. The second phase of the site investigation works will commence on or after the 23rd October 2021, weather permitting and take up to 25 days to complete. The works will be undertaken using the vessel Fugro Scout.

 

During the survey the vessel will be displaying the relevant RAM lights and displays during periods of restricted manoeuvrability. Whilst not recommended, vessels entering the survey area are requested to maintain a 500m safety zone. 

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Rig Move - Ocean Endeavor

The Ocean Endeavor (semi-submersible drilling rig) will be moving from the Gannet Field to the Penguins Field. The Ocean Endeavor (currently conducting drilling activities at Gannet) will be recovering anchors and movingto the Penguin field and deploying a 12 line anchor spread. The anchors will be pre-laid in advance and will be protected by a guard vessel before the rig arrives.

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Drilling Activity - Ocean Endeavor at Penguins (Tybalt)

The Ocean Endeavor (semi-submersible drilling rig) will be conducting drilling and completion operations at the Penguin field on the Tybalt well. The Ocean Endeavor will be drilling at the Penguin field for the first of a multiple well campaign. The total duration of drilling and completion activities is expected to last approximately 70 days.

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NEP Project Nearshore Environmental Survey

Titan Surveys will be undertaking Environmental Sampling in the Nearshore Areas for the NEP carbon capture project. The Titan Endeavour will be undertaking the Environmental Sampling Survey in the vicinity of Redcar and Easington in support of the NEP project. The vessel will be ensuring any sample location is clear of UXO risk with a magnetometer prior to deploying a drop down camera and grab sample at each of the 30 locations.

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Trial Inter-array Cable Installation - Neart na Gaoithe Offshore Wind Farm

Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) are currently undertaking prelay trenching works along a number of inter-array cable routes within the Neart Na Gaoithe (NnG) Wind Farm Area, ahead of the installation of cables at a later date.As part of the trials a short section of inter-array cable has been installed by the Living Stone (call sign: PBXN). The section of trial inter-array cable is estimated to be buried and recovered by 4th October 2021

The section of cable is approximately 450m long and will be in place, until early October 2021, weather dependent. The section of cable is shortly to be buried and then fully recovered, as part of the trial. The trial is taking place directly within the proposed inter-array cable route. A subsequent notice to mariners will be issued to advise to its removal.

 

Mariners are advised that the section of cable has been placed on the violet cable circuit, close to turbine location NNGF08  

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Eastern Irish Sea Wind Farms - Monthly Notice To Mariners - Update

General Maintenance and Survey for Barrow, Burbo Bank, Burbo Bank Extension, Walney 1, 2, 3 & 4, West of Duddon Sands.

General Maintenance

Site Lighting and Marking Status Survey Jack-Up Vessel Other Works
Barrow (BOW) D03 and D08 extinguished N/A N/A

TP Maintenance

(500m safety distance requested)

Burbo Bank (BBW 01) All currently operational N/A N/A None
Burbo Extension (BBW 02) F01 extinguished N/A

Blue Tern

ROV Operations

Walney 01 and 02 (WOW 01&02) All currently operational N/A N/A

TP Maintenance

(500m safety distance requested)

Walney Extension (WOW 03 & WOW 04) (WOW Ext)

All currently operational N/A

Blue Tern

ROV operations

Wave Spotter Buoy

West of Duddon Sands All currently operational N/A N/A

None

 

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Deployment of Buoy - Off Sizewell

Recording Oceanographic equipment will be moored from 1st September 2021 until 31st March 2023. There will be a Waverider Buoy and a yellow Class 2 Guard Buoy at the site. Both buoys fitted with a yellow light exhibiting the sequence Fl Y (5) 20s

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Galloper Windfarm - Defect of the Cable Protection System (CPS) inter-array cables

Please be advised that Galloper Windfarm will be carrying out remedial work in the North & South fields of Galloper Windfarm on the Cable Protect System at 20 locations. Work to commence 30 September to 10 October 2021 (excluding weather delays). Operating from the vessel ‘Glomar Worker’

Mariners are requested to remain a distance of 50m2 away from the assets

 

As cable exposure is a known risk at Galloper and across the offshore wind industry, we would remind Mariners of the safety   information found on the KIS-ORCA website ‘The risks of fishing near cables and renewable energy structures.’   https://kis-orca.org/safety/the-risks-of-fishing-near-cables-renewable-energy-structures/ 

 

To avoid crossing cables when towing equipment follow the cable corridors- locations of the cables can be found on the   Galloper awareness charts via KIS-ORCA. 

 

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Survey - Machar and Mungo Site Survey (Ref: 1298)

A 6 Day Machar and Mungo Site Survey using the Olympic Delta call sign: JWOH3 between 06 October 2021 - 14th October 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Ocean Infinity

Olympic Delta

JWOH3

N/A

06/010/2021 - 14/10/2021

For 6 Days

23,22

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Scientific survey, investigating cetaceans over the Malin Shelf

Survey “Cetaceans over the Malin Shelf” will be carried out from 03/10 to 10/10 in the Malin Sea region by the Galway-Mayo Institute of Technology (GMIT) and the Marine Institute onboard the R.V. Celtic Voyager. The aim of this work is to i) gather visual and acoustic data on the occurrence of cetaceans over the Malin Shelf, ii) collect oceanographic data across the area and iii) characterise the planktonic community associated to the Islay Front.

Passive acoustic monitoring using a towed hydrophone array will be carried out along a pre-defined transect line (see attachment for survey area).  A vertical CTD Rosette sampler and plankton net will be deployed at night at the locations within the attachment. All these operations are to take place within 80nm of the coast, from coastal habitats to the shelf-edge habitats.

 

The core aim of the proposed survey is to collect data on distribution and abundance of cetacean over the Malin Shelf, so far lacking, using a robust combination of visual (transect-line, JNCC protocol) and passive acoustic (PAM) survey techniques. Collection of oceanographic data (underway SST, salinity and chl-a measurements; vertical CTD profiles in selected location) and of information on lower trophic levels (zooplankton sampling) will allow a multi-disciplinary, ecosystem-based approach and maximization of the shiptime opportunity. Noise recordings will be collected along the survey to describe ocean soundscape, map and quantify anthropogenic noise in the area (MSFD standards).

 

This project brings together research institutes from the Republic of Ireland (GMIT) and Northern Ireland (AFBI, Ulster University). The goal is to cooperatively and coherently built knowledge in a cross-border area of shared interest, while providing opportunity for early career scientist to gain experience in project leadership and complement their previous experiences of ship-based research.

 

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Dogger Bank Wind Farms (A & B) - Nearshore Intervention Works

The Jack-up Barge Haven Seariser 4 and the backhoe dredger Abeko 2 will be carrying out dredging activities. Haven Seariser 4 will expose the four HDD exit points and form entry pits. Abeko 2 will excavate two pre-cut trenches for DBA and DBB cable route corridors

The Abeko Server 2 Will carry out dredging activity to form two pre-cut trenches for DBA and DBB cable route corridors using the on-board long reach excavator. There will be spoil management activities being carried out throughout, to ensure the soil heaps don’t reduce the water depth by more than a statutory 5%. She will be carrying out the excavation activities on DBA and DBB during the night. The duration of these works is estimated to be seven days. See fig 2 below.

 

The Haven Seariser 4 will also remain on site 24 hrs during operations, unless threatened by extreme weather, continuing diving operations. These may be carried out in the hours of darkness. A short safety message will be broadcast on CH16 advising of diving operations starting and ceasing.

 

The MTS Valour will be anchored in the field during the nearshore activities. She will remain on station/site during the night and manned 24 hours throughout. The MTS Valour will provide assistance during diving operations and any barge movements required.

 

The RHIB Celtic Mara will be carrying out Multi-Beam Echo Sounder (MBES) surveys of the seabed and along the pre-cut trenches throughout the dredging activities. The survey gear will be positioned on a side mounted pole and extended into the water. Celtic Mara will transit daily from Bridlington Harbour to the Haven Seariser 4 and Abeko Server 2

 

During survey operations the Celtic Mara will be restricted in her ability to manoeuvre. It is requested that all vessels give the Celtic Mara a 500m safety clearance zone and reduce speed when passing. She will display the appropriate lights and day shapes.

 

During dredging and diving operations it is requested that The Abeko Server 2 and Haven Seariser 4 be given a 500m safety clearance zone. Diving flag ‘Alpha’ and the appropriate lights will be displayed during diving operations.

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Survey - Hewett Pipelines Nearshore Survey (Ref: 1296)

A 5 Day survey of the Hewett Pipelines Nearshore between 20th September 2021 - 31st December 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

ENI UK Limited

TBC

N/A

20/09/2021 - 31/12/2021

For 5 Days

48, 52

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Unexploded Ordnance Disposal - Seagreen Offshore Wind Farm

The disposal of four items of unexploded ordnance will be conducted within the Seagreen offshore wind farm site boundary. During this operation noise monitors will be placed on the seabed. Seaway 7 will conduct the disposal of 4 items of unexploded ordnance located within the Seagreen Wind Farm site boundary.

The survey vessel Glomar Worker will embark an explosive ordnance disposal team and are expected on site to conduct the works on or around the 21st of September. The disposal works are expected to be complete within 4 days weather conditions permitting. Depending on the nature of the ordnance differing disposal methods may be employed. Noise monitors will be placed on the seabed as part of the disposal process, coordinates of these monitors are below Any required detonations will take place during daylight hours, the Glomar Worker will commence hourly warning broadcasts four hours prior to any detonations, a final broadcast will be made 10 minutes before execution.

 

Glomar Worker will monitor the area for the safety of other vessels, it is requested that all vessels give the operations in excess of 1 nautical mile clearance during disposal operations.

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Unmanned Surface Vessel Cable Route Survey - Irish Sea

Operations of a remotely piloted Uncrewed Surface Vessel (USV) are planned in the Irish Sea. Dates: Monday 27th September 2021 for up to 10 days until 6th October 2021. The USV will be mobilised from Whitehaven Marina, where it will transit to/from the area of operation. During the operation the USV will be performing a Hydrographic Survey.

A support vessel will escort the USV throughout the operations from the harbour entrance and will then continue transiting towards the survey site until the area is safe & clear of hazards.

 

It is requested that other vessels remain clear, so far as is practicable, during transit & survey operations.

 

Although the vessel is uncrewed, it is managed throughout the 24hour operation piloted remotely using 360 degree cameras and other navigational aids.

 

The USV sends real time images and situational awareness data over satellite to a team of operators keeping watch and controlling the vessel remotely 24/7.

 

Safety Precautions: The USV is equipped with the following to make it conspicuous to other marine traffic:

  • AIS
  • Navigation Lights & Sound Signal
  • Active Radar Reflector
  • Superstructure Painted Yellow

 

Seafarers are asked to avoid contact with the vessel and be aware of the operational area during this period.      

 

 

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Hazard UXO - Circle North 2

Confirmed Unexploded Ordnance discovered close to the Circle North 2 Cable in 32m depth of water. Dimensions 670mm(L) x 280mm(W). UXO Safety Procedures Actioned a 50m Radius Exclusion Zone.

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Rig Move - Deepsea Atlantic

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending hundreds of metres outside this zone.

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WTG Installation and Commissioning - Moray East Windfarm

Moray Offshore Windfarm (East) shall commence WTG installation on the previously installed jackets. WTG’s will be installed by the JUV Blue Tern. Once the WTG’s have been installed Acta Centaurus will transfer teams of technicians using a walk to work system to carry out commissioning works in readiness for energisation. Acta Centaurus will be supported by 2 CTV’s (HST Harri and Njord Forseti). Installation and commissioning works will commence circa 5th January 2021 until completion.

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Seagreen Export Cable nearshore protection works

Nearshore export cable protection works will take place at the Seagreen Offshore Wind Farm export cable landfall site at Carnoustie, Angus. The placing of rock bags on the seabed to act as temporary moorings to assist the installation vessels has now been completed. Work will now commence on the tow of 3 self-submersible pipes from Dundee harbour and installation at the export cable landfall site.

On behalf of Seagreen Wind Energy Ltd, Nexans Norway Dykkerteknikk AS will deliver nearshore export cable protection services and diving assistance in preparation for the pull-in of three export cables at the Carnoustie export cable landfall site. The export cable works are divided into 4 campaigns with an estimated completion date of the end of February 2022.

The first campaign is to install and trench 3 self-submersible cable protection pipes. Spool pieces have been connected to the three export cable ducts. 3 self-submersible cable protection pipes will now be connected to each of the export cable ducts. The three self-sub cable protection pipes will then be trenched awaiting export cable pull-in at a date to be confirmed. 

 

Installation activities and diving operations will take place from the MPV Sophie. The tug Cormorant and Multi Cat Aileen M will assist in the towing of the self-submersible cable protection pipes from Dundee and installation works at the landfall site at Carnoustie Beach.

The MPV Sophie, Cormorant and Aileen M are expected to commence installation and diving activities on or around Monday 06th September although this may be delayed due to weather conditions.

Temporary rock bag moorings have been placed on the seabed to be used during the selfsubmersible cable protection pipe installation and export cable pull-in. These temporary moorings will be surface marked by day-glo pellet buoys.

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Viking Link Project - Post-lay Installation Placement Works

Mariners are advised about post-lay Rock Placement works planned for the first section of the cable route, Campaign 1, planned for the Viking Link project which is a HVDC electricity transmission interconnector between Denmark and England, a joint venture between National Grid and Energinet. The Campaign 1 post-lay Rock Placement works covered by this notice are in UK waters and are planned to commence on the 12th September 2021 with expected completion by end of October 2021.

The post-lay Rock Placement for Campaign 1 is planned in the following areas:

  • Where pre-existing cables and pipelines are crossed by the Viking Link cable route
  • Where it’s requested rock placement for cable protection

The dynamic positioning system onboard will keep the vessel in position in order to progressively and accurately install the rock in the planned locations.

The Campaign 1 post-lay Rock Placement works are being managed by Prysmian PowerLink carried out by DEME Boskalis JV using the following vessels:

  • DPFPV Rockpiper call sign: 5BML3

The works covered within this Notice to Mariners (NtMs) are divided in the following activities planned to take place from:

  • Cable lay 17th September – 10th October 2021
  • Cable Burial 25th September – 4th December 2021

The route length of the main HVDC interconnector (2x bundles power cables + 1x Fibre Optic Cable) is in the order of 620km. The work covered by this NtM is covering the second campaign of 106km in length, starting from the end of the first campaign recently installed from the UK landfall, which encompassed the first 51km section

The Cable Lay works are being carried out by: Prysmian PowerLink using Leonardo da Vinci (IMO 9857315; MMSI 247415300; Call Sign IJVJ2).

 

The Cable burial works are being carried out by: Asso.subsea using Aethra (IMO 9181481; MMSI 212466000; Call Sign 5BHH4) using the trenching tool AssoTrencher IV and the Argo (IMO 9523366; MMSI 209023000; Call Sign 5BDF3) using the jetting tool AssoJet III and trenching tool AssoTrencher IV.  

 

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Current profiler deployments - Pentland Firth

Two acoustic current profilers will be deployed to the seabed in Pentland Firth for a minimum period of 30 days before recovery The profilers will be deployed by the vessel 'C-Odyssey' (26m LOA). The current profilers will be depoyed to the seafloor and isolated from the surface. No riser lines or surface markers will be used.

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Maintenance - York Field Platform 47/3a

Spirit Energy has contracted the Bibby Marine services’ WaveMaster 1 offshore support vessel to provide walk-to-work services at the Spirit Energy-operated York Field platform (a normally unmanned installation) located in the UK southern North Sea. The vessel is scheduled to mobilise in Great Yarmouth as soon as the 28th September 2021, and to arrive at the York field as soon as later that day, where it will be on location for approximately 17 days.

All activities (other than vessel transit) will take place within the HSE-recognised 500 m safety zone established around the platform. The WaveMaster 1 will be accompanied by an emergency response and rescue vessel while it is on station.

 

 

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Rig Move - Valaris 122

The Valaris 122 (Jack-up drilling rig) will be moving from the Shearwater Field to the Jaws Field. The Valaris 122 will be jacking up at the new well location (open-water) in preparation for drilling and completion activities.

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Drilling Activity - Valaris 122 at Jaws

The Valaris 122 (jack up drilling rig) will be conducting drilling and completion operations at the Jaws field on the 22/12D-Jaws well. The Valaris 122 will be drilling at a standalone location in the Jaws field on a single well campaign. The total duration of drilling and completion activities is expected to last approximately 145 days.

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Deployment of FLiDAR buoys - Blyth NOAH met mast site

Fugro GM Marine Limited (Fugro) to carry out deployment of two floating LiDAR buoys at the NOAH mast offshore Blyth. The deployment of the equipment is planned for 30 September and equipment will remain on site for an estimated duration of 30 days. Deployment operations are expected to take one day. Operations will be conducted with the Tees Guardian call sign:2IJH2 and will involve towing the equipment from the Port of Blyth to the deployment site.

The equipment is an integrated Seawatch Wavescan buoy and ZX 300M LiDAR; the purpose of the equipment is to collect oceanographic and meteorological data using a single platform. The equipment is supplied and charged by an onboard power system which uses methanol fuel cells and solar panels to recharge onboard lead acid batteries.

The equipment is equipped with a F1 (5) Y 20 s light with 4-5 nautical mile range; the light is mounted at the top of one of the masts, approximately 4 m above sea level.  

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Survey - Munro, Katy & Murdoch Fields (Ref: 1310)

A 6 Day site survey at Munro, Katy & Murdoch Fields using the vessel Fugro Galaxy call sign: C6YY4 between 25th September 2021 - 31st December 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB Marine

Fugro Galaxy

C6YY4

200m

2m

25/09/2021 - 31/21/2021

For 6 Days

44

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Survey - Judy Riser Platform (Ref: 1309)

A 2 Day site survey at the Judy Rider Platform using the vessel Fugro Galaxy call sign: C6YY4 between 25th September 2021 - 31st December 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB Marine

Fugro Galaxy

C6YY4

N/A

25/09/2021 - 31/21/2021

For 2 Days

30

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Survey - Hunter / Rita Site Survey (Ref: 1308)

A 6 Day site survey at Hunter / Rita using the vessel Fugro Galaxy call sign: C6YY4 between 25th September 2021 - 31st December 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB Marine

Fugro Galaxy

C6YY4

200m

2m

25/09/2021 - 31/21/2021

For 6 Days

44

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Sediment Coring Survey - Scapa Flow

The Centre for Environment Fisheries and Aquaculture Science (Cefas) will be carrying out an environmental survey on behalf of the Ministry of Defence Salvage and Marine Operations team.

Cefas will aim to collect a maximum of 24 sediment cores to a maximum sediment depth of 1m from an area around the wreck using a piston corer (core diameter: 96mm). The volume of each sediment sample will not exceed 1m3. Should the sediment type present unsuccessful coring operations, a surface grab will be used resulting in less sediment being removed. The samples stations will be positioned based on the predicted trajectory of the main transport pathway from the SS PRUDENTIA wreck. No sediment sampling will be undertaken within 50 metres of the wreck. Sub samples from the sediment cores will be taken and frozen in glass jars and transported back to the laboratory to await oil-derived contaminant analysis. Water samples will also be collected from the water column using a conductivity, temperature and depth sensor and niskin bottles. Following the completion of sediment coring exercise, a Seaeye Falcon Remotely operated vehicle (ROV) will be operated, deployed and retrieved from the vessel and will be used around the wreck site.

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Survey - Leverett Site Survey (Ref: 1316)

A 6 Day site survey at Leverett using the Vessel Ocean Resolution call sign: 3EIP9 between 3rd October 2021 - 31st January 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline Limited

Ocean Resolution

3EIP9

1200m

3m

03/10/2021 - 31/01/2022

For 6 Days

21

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Northern North Sea – Ninian Spur Line Survey 2

Kommandor (Call Sign: MCJ02) will be carrying out pipeline route inspection between Ninian Central Platform Start date = Current mob 29th September 2021. Duration expected to be approx. 6 Days to 4th October 2021.

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North North Sea – Ninian Spur Line Survey 1

Deep Vision (Call Sign: 2CVC8) will be carrying out pipeline route inspection between Ninian Central Platform. Start date = Current mob 26th September. Duration expected to be approx. 3 Days to 29th Sept 2021

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Dropped moorings within the proposed Erebus Site

Recovery of the Wave Buoy was undertaken at the proposed Erebus site, however during recovery of the wave buoy the mooring system was lost. An attempt to recovery a damaged mooring, currently located within the proposed Erebus site, was unsuccessful.

Recovery of the Wave Buoy was undertaken at the proposed Erebus site, however during recovery of the wave buoy the mooring system was lost. 

 

An attempt to recovery a damaged mooring, currently located within the proposed Erebus site, was unsuccessful. 

 

The first 15 m from the upper moorings have been recovered. The remaining mooring components start from the 38 mm x 20 mm seasteel to the anchor weight on the seabed.

 

 

Wave Buoy Mooring (Approx. Location)

Damaged Mooring (Approximate Location)

Easting Northings

319285.93

5706027.30

318094.17

5704520.31

Degrees Minutes Seconds

51°28'35.40"N

05°36'08.40"W

51°27’45.29”N

5°37’7.32”W

Decimal Degrees

51.476500

-5.602333

51.462581

-5.618700

Degrees Decimal Minutes

51°28.590‘N

5° 36.140‘W

51º27.755”N

5º37.122”W

 

It is recommended that mariners remain vigilant of the moorings and make note of the approximate mooring locations.

 

A further attempt to recover the damaged mooring and lost mooring is expected to occur. A further NtM will be issued once details of the recovery attempt are known.

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Survey - Orwell, Thames, Horne & Wren and Wissey Post-Decom (Ref: 1301)

A 4 Day Post-Decommissioning survey at Orwell, Thames, Horne & Wren and Wissey using the Vessel EGS Pioneer call sign: 2EGS9 between 13th September 2021 - 13th October 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

EGS International Ltd

EGS Pioneer

2EGS9

N/A

13/09/2021 - 13/10/2021

For 4 Days

49, 50, 53

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Survey - Freedom AUV Trials - Gryphon FPSO and Leadon

The Island Frontier (Call Sign: LAYE5) will be carrying out AUV Trial Surveys North of the Gryphon FPSO and at Leadon, in the vicinity of the areas noted below. Start date 15th September 2021. Duration expected to be approx. 14 Days to 29th September 2021

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Valaris 121 to Dunnottar Field

Chrysaor plan to move the Valaris 121 Jack-up drilling rig from the Talbot field location to the Dunnottar field location to perform drilling operations on the Dunnottar 30/08-D exploration well. Throughout well operations there will be a dedicated ERRV on location monitoring the surrounding sea area.

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Deployment of 3 x ADCP monitoring equipment - off St. Catherine's Point, South of the Isle of Wight

As part of the Perpetuus Tidal Energy Centre (PTEC), European Marine Energy Centre (EMEC) will be deploying three ADCP units in close proximity off St. Catherine's Point, South of the Isle of Wight. Due to the nature of the deployment each unit will be considered as a navigational hazard. Care should be taken when navigating around the below positions.

Each unit will be laid in a string with a sinker at each end of the ADCP.  Each sinker will have a Polysteel riser line attached to it with a small yellow 250mm pickup bouy and float connected.  These buoys will be visible during slack tides and subsurface during the rest of the tidal cycle.

 

ADCP Positions:

Location ID Lat Long
1 50° 32.90802’N 001° 16.52784’W
2 50° 33.11514’N 001°16.63824’W
3 50° 33.02784’N 001°16.47804’W
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Construction of wind farm - Moray East

Due to the construction of the Moray East Offshore Wind Farm, there are several elements to this notice - safety zones; construction schedule; and buoy positions.

For background information about Moray East, please visit: www.morayoffshore.com/moray-east

 

Safety Zones

Please be advised that the Scottish Ministers have authorised the use of the safety zones during construction and operation of the Moray East Offshore Wind Farm as detailed below.

 

During construction

  • A 500 metre radius around each WTG and OSP where construction works are taking place that include sensitive activities being undertaken by vessels RAM. A maximum of three of such zones is permitted at any one time. 
  • A 50 metre radius around partially completed WTGs and OSPs where work is not underway and the risk assessments identify a need. 
  • A 50 metre radius around each completed WTG and OSP prior to commissioning and as required by a risk assessment process. 

During major maintenance

  • A 500 metre radius around all major maintenance works being undertaken around the WTGs and OSPs. No more than one major maintenance zone is permitted at any one time.

Construction Activities

It is currently anticipated that weather permitting offshore construction works will be carried out on a continuous basis (i.e. 24 hour working, seven days a week) unless notified otherwise.

 

Please be aware that by virtue of its mode of operation and the equipment deployed, construction vessels listed in the table below may be Restricted in their Ability to Manoeuvre as defined under COLREGS (International Regulations for Preventing Collisions at Sea 1972, Rule 3). Masters of vessels are therefore requested to maintain their vessels and gears at a minimum safe distance from these vessels of 500 metres when they are undertaking it work and showing the appropriate shapes and lights.  Further Notice to Mariners will be issued as construction progresses.

 

  •  
 

Company,

Vessel &

Call Sign

Survey Area

Survey Area

Start Timeframe & Duration

GV Replenish

MASY7

As above

As above

1st May 2019 for approximately 34 months

GV BOUNTIFUL

MJLF4

As above

As above

30th April 2020 for approximately 20 months

NSL Challenger

As above As above 13th April 2021 until further notice

Windcat19

2ATD3

As above As above 20th August 2020 Until further notice

GV Kinnaird 

GHNE

As above

As above

16th July 2020 Until further notice

Acta Centaurus

As Above As Above 21st January 2021 until further notice
HST Harri As above As above 28th January 2021 Until further notice
Windcat 40 As above As above 4th Feb 2021 until further notice
Esvagt Wind 8 As above As above 2nd July 2021 until further notice
Njord Forseti As above As above 04th June 2021 Until further notice
Blue Tern As above As above 30th April  2021 until further notice
Esvagt Alba As above As above

2nd July 2021 until further notice

 

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Environmental Survey of Affleck Pipeline Route

The survey operation is to consist of a 21km route survey, centred along the route centreline and 250m either side area with, nominally, 5 survey lines.

Complete survey for geotechnical, bathymetric and seabed feature data for the pipeline design and installation contractors including geotechnical data relevant to planning and configuration of trenching and burial tools.

 

Complete To undertake an environmental seabed survey to investigate the ‘baseline’ or background condition of the seabed sediments and associated benthic faunal communities in the vicinity of the proposed pipeline to enable accurate measurement of future impacts from the development.  Specifically, the environmental survey should aim to assess:

    • Benthic faunal communities;
    • Sediment grain size;
    • Sediment chemistry (metal, hydrocarbons and organic content).

 

In addition, a habitat assessment shall be conducted to identify any potential Annex I habitats (EU Habitats Directive) and establish the occurrence of relevant Priority Marine Features (PMFs) in the survey area, such as habitats and species included on the OSPAR list of threatened and/ or declining species and habitats, in addition to those included in the UK Biodiversity Action Plan (UKBAP) Priority List and the Scottish Biodiversity List.

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Survey - NW Schooner (Ref: 1303)

A 2 Day Site Survey at NW Schooner using the vessel Fugro Galaxy call sign: C6YY4 between 23rd September 2021 - 31st October 2021

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block
Fugro (GB North) Marine Limited

Fugro Galaxy

C6YY4

N/A

23/09/2021 - 31/10/2021

For 2 Days

43, 44

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Survey - Central North Sea Regional Survey (Ref: 1300)

A 62 Day Central North Sea Regional Survey using the vessels SW Amundsen call sign: 5BXE2, Tess call sign: YJUV8 and MV Scorpio ZDRF7 between 20th September 2021 - 30th November 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block
Shearwater GeoServices AS 

SW Amundsen

5BXE2

Tess

YJUV8

MV Scorpio

ZDRF7 

N/A

23/09/2021 - 30/11/2021

For 6 Days

19,20

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ENI Liverpool Bay Vessel based ROV Inspection

Vessel based underwater ROV Inspections of ENI UK Liverpool Bay Assets. These will be conducted within the platform/tanker exclusion zones (500m for platforms. 800m for the Oil storage tanker). Vessel will transit between platform locations. Expected Duration: 15/09/2021 - 02/10/2021

James Fisher Marine Services would like to inform mariners that Vessel based ROV Inspections are due to commence on 15th September 2021 within the ENI UK Liverpool Bay Areas. These works involve; Inspection of the ENI platforms and the Oil Storage Tanker buoy and anchor chains by Remotely Operated Vehicle (ROV) operated from the EDT Jane

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Pipeline and Well Survey - Hewett Field

Survey Vessel Polar Onyx call sign: LAQD7 and Vessel Isle of Jura call sign MFFY6 will perform pipelines/umbilical's and wells survey of the Hewett Field infrastructure from 13th September until 17th October 2021.

Vessel Polar Onyx, will complete Hewett field pipelines/umbilical's and susbea wells survey of the entire subsea infrasructure. Work consists of ROV operations, Multiple beam survey, pipe tracker / depth of burial survey.

 

Vessel Isle of Jura will carry out a nearshore 'export pipeline PL20 & PL21' survey. This will include a number of environmental grab sampling  will completed by the marine survey activities

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Unexploded Ordnance & Boulder clearance - Seagreen Offshore Windfarm

An unexploded ordnance and boulder clearance geophysical survey will take place within the Seagreen Offshore Windfarm site boundary.

The survey vessel, Geo Ranger has now left the project. A replacement vessel, Kommador Iona will utilise towed array equipment with side scan sonar, sub bottom profiler and magnetometer to conduct the survey of the remaining Wind Turbine Generator positions within the Seagreen site boundary.The survey vessel is expected to arrive at site on or around Wednesday the 14th of July. Seagreen Notice to Mariners 03-21 revision 4 refers.

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Plugging and Abandonment - Ketch A Platform

The Rowan Gorilla (Valaris) V Jack-up rig is currently undertaking well Plugging and Abandonment (P&A) activities at the Ketch 'A' platform (Quad/Block 44/28; until the completion of P&A activities (Q4 2021).

In parallel, the existing Ketch 'A' analogue Aids to Navigation (AtoN) are to be replaced with a new Solar AtoN. 

 

For the period 1 Sept - 31 Oct 2021,  THREE60 has received dispensation (from  the Standard Marking schedule) to permanently isolate the Ketch 'A' analogue Aids to Navigation for installation of a new Solar AtoN.

 

For the period 1 Sept - 31 Oct 2021,  the existing AtoN on the Rowan Gorilla (Valaris) V Jack-up rig will continue to be in operation and the existing onsite EERV will be actively monitoring the 500m zone to mitigate the risk of ship collision. 

 

The RGV rig will remain at the Ketch 'A' platform until Q4 2021 following completion of the P&A scope and installation of the Solar AtoN. 

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Shallow Burial - East Anglia One Export Cable Route

East Anglia ONE Offshore Windfarm request all vessels to strictly follow a 250m exclusion zone around EA1 Export Cables when dropping anchor or using fishing equipment in the following areas due to shallow burial.

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Deployment of Spherical Directional Waverider Buoy - Northern North Sea

Shell are planning on deploying a new wave buoy in the Northern North Sea at the end of August or early September. Colour: Yellow, Size: 0.9 diameter Fl 5 10s

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Safe Boreas accommodation vessel in Buzzard field

The Safe Boreas accommodation vessel is mobilising to the Buzzard field on April 18th 2021 for a maximum of 190 days

The Safe Boreas accommodation vessel is being located into the Buzzard field for the turnaround period, beginning on the 18th April 2021. The accommodation vessel will use dynamic positioning and will be located within the 500 m exclusion zone of the Buzzard Platform, and is expected to depart around 15/10/21. The Safe Boreas will be linked to Buzzard QU Platform via a gangway interface.

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Survey - Race Bank Export Cables

A-2-Sea Solutions will be carrying out ROV inspection operations along the Race Bank Offshore Wind Farm export cable routes. The survey will extend along the Race Bank export cables from KP 4.5 to KP 29.0. Survey operations are expected to commence from 8th September for a period of 2-3 weeks. Survey work will be undertaken onboard the vessel Noortruck Call Sign: DFRY

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Survey - Lincs Offshore Windfarm export cables

A-2-Sea Solutions will be carrying out ROV inspection operations along the Lincs Offshore Wind Farm export cable routes. The survey will extend along the Lincs export cables from KP 7 to KP 30. Survey operations are expected to commence from 8th September for a period of 2-3 weeks. Survey work will be undertaken onboard the vessel Noortruck call sign: DFRY.

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Sanday - Eday subsea cable installation

A new subsea electricity cable between Spurness (Sanday) and London Bay (Eday) has been installed. The cable is surface laid in proximity to the previous and now out of service cable.

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Eday - Westray subsea electricity cable installation

A new subsea electricity cable has been installed between Fersness Bay (Eday) and near Point of Geldibist (Westray). The cable is installed on the seabed in proximity to the previous and now out of service cable

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Cable Repair - Pentland Firth East Cable

Repair operations have commenced on the Pentland Firth East electricity cable. Mariners are advised that during these works the cable and temporary clump weights may be on the seabed or buried but with limited depth of cover.

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Decommissioning Activities – Plug and Abandonment (P&A) Activities on the Bessemer Installation

Planned Plug and Abandonment (P&A)  works are due to commence on the Bessemer (UKCS 49/23E). Works will be undertaken by the Jack up Barge 'Haeva' for a period of approximately 60 days.

The Jack up Barge Haeva, will depart from Galahad (UKCS 48/12BA) at 53°32.75'N 01°21.55'E  and transit to the Indefatigable Hub to the Bessemer Installation, where the planned Plug and Abandonment (P&A) will commence.

 

The P&A activity will take approximately 60 days and the Haeva is due to leave Bessemer around the 5th November 2021.

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Survey - Bacton Nearshore Pipeline Inspection (Ref: 1306)

A 10 Day pipeline inspection survey between 15th September 2021 - 31st October 2021. Using the vessel Fugro Seeker Call sign: 2HCS2.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB (North) Marine Limited

Fugro Seeker

2HCS2

 

15/09/2021 - 31/10/2021

For 10 Days

52

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Wave Buoy Deployment - London Array Offshore Wind Farm

A Wave Rider Buoy will be deployed onsite from 24th September until further notice as part of ongoing monitoring of offshore conditions to support operations. Spectrum Offshore will be engaged to deploy the buoy. Description of wave rider buoy: Yellow spherical buoy, transparent top dome with solar panels and flashing light. Weight: 197kg Size: 1.10m Diameter. The buoy is connected to a subsea weight on a surface line. Vessels are requested to always maintain a 250m clearance around the buoy.

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Cable Installation - Proposed Cross Channel Fibre

C/S IT INTREPID will be installing a commercial telecom cable system between Brighton, UK and Veules-Les-Roses, France. Operations will take place from 15th September 2021 through to 20th October 2021.

 Mariners are advised to use caution when transiting the area, and contact the C/S IT INTREPID on VHF Channel 16 should there be any information required.  Periodic announcements will be broadcast by the vessel on VHF Channel 16.

All vessels are requested to maintain a two (2) nautical mile Closest Point of Approach (CPA) and a 500m exclusion zone around the C/S IT INTREPID.

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Notification of Seabed Hazard at Location NNG-H17 - Neart na Gaoithe Offshore Wind Farm

Mariners are advised that the Saipem 7000 (S7000) has successfully completed recovery of the previously left equipment within the boundaries of the Neart na Gaoithe (NnG) Offshore Wind Farm. The operation was completed on 17th August 2021 and the S7000 has departed site.

Mariners are advised that the Saipem 7000 (S7000) has successfully completed recovery of the previously left equipment within the boundaries of the Neart na Gaoithe (NnG) Offshore Wind Farm. The operation was completed on 17th August 2021 and the S7000 has departed site.

 

The equipment has been recovered from Wind Turbine Generator (WTG) location NNG-H17, however, a small section remains within the drilled socket.  This section protrudes approximately 3.1m above the level of the seabed, at the location specified in Table 6, and is to be cut at a later date.

 

The installed cardinal buoy, as notified in NtM 154 has been removed.

 

Vessels Associated with the Activity

One guard vessel is currently within the wind farm site. The guard vessel will be one of the below, which can be contacted as follows, if required:

Vessel name:

Seagull

Vessel role:

Guard Vessel

Call sign:

MVBO2

On board contact:

Contact name: Vessel Master

Email: seagullbf74@gmail.com

Phone: +44 (0) 1261 878040 / +44 (0) 7895 919100

 

Vessel name:

Artemis

Vessel role:

Guard Vessel

Call sign:

MVIX5

On board contact:

Contact name: Vessel Master

Email: concordebf47@aol.com

Phone: +44 (0) 7949 663790 / +44 (0) 1261 455461

 

 

Vessel name:

Tranquillity S

Vessel role:

Guard Vessel

Call sign:

MJUH9

On board contact:

Contact name: Vessel Master

Email: spousekeil@yahoo.com 

Phone: +44 (0) 1346 454758

 

 

 

 

General Safety Advice

Construction activities are ongoing within the boundaries of the Neart na Gaoithe Offshore Wind Farm.  Mariners are advised to refer to the NnG Weekly Notice of Operations where up to date information regarding activities on site is broadcast. A copy of this notice and the Weekly Notice of Operations can also be found at https://nngoffshorewind.com/resources/

 

Marine Coordination Contact Details

The following contact can provide more information if required. Please note that specific queries can also be addressed to the relevant vessel or shore-based representative.

 

Table 7 - Marine Coordination Contact Details

Telephone number (daytime):

+44 (0) 1890 751415 (use Emergency contact only until further notice)

Emergency contact (24/7):

+44 (0) 7508 421406

Email:

nng.mc@smchse.com

Address:

NnG Offshore Wind Farm Marine Coordination Centre, Gunsgreen Basin, Eyemouth, TD14 5SD

 

Fisheries Liaison

Fisheries liaison associated with the activity will be co-ordinated by Natural Power. For any commercial fishery queries please contact the NnG company Fisheries Liaison Officer (CFLO) Peter Berney, telephone: +44 (0)7391 402387 or email: NnG.FLO@naturalpower.com.

 

Distribution List

A central list of recipients is maintained by the company Fisheries Liaison Officer; if you are not the appropriate recipient of these notices, or do not wish to receive the notices in the future, please contact us at NnG.FLO@naturalpower.com.

A copy of this notice can also be found at https://nngoffshorewind.com/

 

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Commencement of Export Cable Burial Works - Neart na Gaoithe Offshore Wind Farm

Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) are due to commence cable burial works of the two export cables within the NnG Export Cable Corridor. The burial of the first export cable is due to begin week commencing 21st June 2021, at the earliest. The burial of the second export cable is due to begin week commencing 19th July 2021, at the earliest. Both export cables will be buried by a remotely operated vehicle (ROV) deployed and controlled from the Normand Pacific (LAXI7).

Mariners are advised that Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) are due to commence cable burial works of the two export cables within the Neart Na Gaoithe (NnG) Export Cable Corridor. The burial of the first export cable is due to begin week commencing 21st  June 2021, at the earliest. The burial of the second export cable is due to begin week commencing 19th July 2021, at the earliest. Both export cables will be buried by a remotely operated vehicle (ROV) deployed and controlled from the Normand Pacific (LAXI7).

 

Prior to the burial works commencing, a ROV will complete a pre burial survey on the as-laid export cables. Once complete, an ROV equipped with a jetting tool and mechanical cutting tool will be lowered onto the seabed to commence burial works. The ROV will be guided to the as-laid export cable and commence jetting operations. A jetting tool will be used for burial operations in softer ground conditions, whilst the mechanical cutting tool will be used for burial operations in harder ground conditions. Following the burial of the two export cables, the ROV will complete a post burial survey of the export cables to ensure the target burial depth has been achieved and that the cable protection is in situ.

 

Area of Operations

Mariners are advised that the Normand Pacific will be mobilised from Middlesbrough to work within the boundaries of the NnG Export Cable Corridor, within the coordinates provided.

 

Please be aware that by virtue of its mode of operation and the equipment deployed, the Normand Pacific will at times be Restricted in its Ability to Manoeuvre as defined under COLREGS (International Regulations for Preventing Collisions at Sea 1972, Rule 3).

 

Masters of vessels are therefore requested to maintain their vessels and gears at a minimum safe distance from the vessel of 500 metres when it is undertaking its work and showing the appropriate shapes and lights.

 

An exclusion area of 500m either side of each export cable route for static fishing gear is requested.  This is shown in Figure 2 and the coordinates provided in Table 2 overleaf. The existing nearshore exclusion area will also remain in place.

 

Vessels with bottom-towed gear are requested to be kept clear of a reduced exclusion area once the cable laying commences, which will be notified by the Company Fisheries Liaison Officer.

 

Schedule

The export cable burial is due to begin week commencing 21st June 2021 at the earliest, weather dependant. The cable burial works will be undertaken on the first export cable between June 2021 and July 2021, and on the second export cable between end July 2021 and August 2021. It is anticipated that both export cable burial works will be completed by end August, weather dependent.

 

Weather permitting and during daylight hours, construction works will be carried out on a continuous basis (i.e. 24-hour working, seven days a week), unless notified otherwise.

 

For updates on the progress of the works, information will be provided in the Weekly Notice of Operations available on the NnG project website: https://nngoffshorewind.com/resources/.

 

Vessels Associated with the Activity

 

Vessel name: 

Normand Pacific

Vessel role: 

Cable Burial Vessel

Call sign: 

LAXI7

Maritime Mobile Service Identity: 

257743000

On board contact: 

Contact name: Vessel Master

Email: pacific.master@n-pacific.solstadfarstad.com

Phone: +47 4768 8807

Onshore representative: 

Contact name: Knut Ove Emberland

Email: knut.ove.emberland@solstad.com

Phone: +47 5285 9553 / +47 9132 2633  

 

Two guard vessels are currently on site supporting the Neart na Gaoithe Offshore Wind Farm construction. The guard vessels will be two of the below, which can be contacted as follows, if required:

 

Vessel name: 

Cable Enterprise 

Vessel role:

Cable Installation Vessel

Call sign: 

2FOV9 

Maritime Mobile Service Identity: 

235093018 

On board contact: 

Contact name: Vessel Master  Email: ce.master@prysmiangroup.com  Phone: +44 779 8764403

Onshore representative: 

Contact name: Stefano Dalmasso  Email: sdalmasso@seaworldmanagement.com  Phone: +377 678 632642 

 

Two guard vessels are currently on site supporting the Neart na Gaoithe Offshore Wind Farm construction. The guard vessels will be two of the below, which can be contacted as follows, if required:

 

Vessel name: 

Morning Dawn 

Vessel role: 

Guard Vessel 

Call sign: 

MHEU3 

On board contact: 

Contact name: Vessel Master  Email: bridge@morning-dawn.co.uk  Phone: + 33 640 047722 /  +44 1779 400158  

 

Vessel name:

Seagull 

Vessel role: 

Guard Vessel 

Call sign: 

MVBO2

On board contact: 

Contact name: Vessel Master  Email: seagullbf74@gmail.com  Phone: +44 (0) 1261 878040 / +44 (0) 7895 919100

 

Vessel name: 

 Artemis 

Vessel role: 

Guard Vessel 

Call sign: 

MVIX5 

On board contact: 

Contact name: Vessel Master  Email: concordebf47@aol.com  Phone: +44 (0) 7949 663790 / +44 (0) 1261 455461 

 

Vessel name: 

Tranquillity S

Vessel role: 

Guard Vessel 

Call sign: 

MJUH9 

On board contact: 

Contact name: Vessel Master  Email: spousekeil@yahoo.com    Phone: +44 (0) 1346 454758 

 

Port of Operation The Normand Pacific will mobilise from Middlesbrough, UK.  

 

Adverse weather conditions  Upon adverse weather conditions, if the Normand Pacific is not able to hold on position, it will seek shelter or return to Port.

 

General Safety Advice  Construction activities are ongoing within the boundaries of the Neart na Gaoithe Offshore Wind Farm.  Mariners are advised to refer to the NnG Weekly Notice of Operations where up to date information regarding activities on site is broadcast. A copy of this notice and the Weekly Notice of Operations can also be found at https://nngoffshorewind.com/downloads/ 

 

Marine Coordination Contact Details  The following contact can provide more information if required. Please note that specific queries can also be addressed to the relevant vessel or shore based representative.

Telephone number  (daytime): 

+44 (0) 1890 751415 (use Emergency contact only until further notice)  

Emergency contact (24/7):

+44 (0) 7508 421406 

Email: 

nng.mc@smchse.com 

Address: 

NnG Offshore Wind Farm Marine Coordination Centre, Gunsgreen Basin, Eyemouth,  TD14 5SD 

 

Fisheries Liaison  Fisheries liaison associated with the activity will be co-ordinated by Natural Power. For any commercial fishery queries please contact the NnG company Fisheries Liaison Officer (CFLO) Peter Berney, telephone: +44 (0)7391 402387 or email: NnG.FLO@naturalpower.com. An Offshore Fisheries Liaison Officer (OFLO) will be present on both the Norne and Cable Enterprise and can be contacted via VHF Channel 16. 

 

Distribution List  A central list of recipients is maintained by the company Fisheries Liaison Officer; if you are not the appropriate recipient of these notices, or do not wish to receive the notices in the future, please contact us at NnG.FLO@naturalpower.com. A copy of this notice can also be found at https://nngoffshorewind.com/  

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Construction of Wind Farm - Neart na Gaoithe Offshore Wind Farm Limited

Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) will commence construction work for Neart na Gaoithe (NnG) Offshore Wind Farm, from the 9th August 2020, with the start of casing and pile installation operations on the wind farm site.

NnGOWL is developing the NnG Offshore Wind Farm, jointly owned by EDF Renewables and ESB, which is located in the outer Firth of Forth, Scotland. The NnG wind farm area is 15 km east off Fife Ness and 29 km from the East Lothian coastline and covers an area of 105 km2

The wind farm consists of 54 no. wind turbines (WTGs) and 2 no. Offshore Substation Platforms (OSPs), with a total capacity of approximately 45 0MW. Water depths across the offshore wind farm area generally range from 40 to 60 m below LAT. The generated power will be transmitted to the grid via two subsea export cable circuits which will reach landfall at Thorntonloch Beach, East Lothian, Scotland. Specific details and location of activities within the Wind Farm Area and Export Cable Corridor will be provided via subsequent notices as work progresses.

 

Buoyage

 

Five special markers are now in position:

 

Name Location

SP 1 - Special Mark - Fl Y 5s light character

56°18.180'N 02°12.075'W

SP 2 - Special Mark - Fl Y 5s light character

56°15.643'N 02°09.329'W

SP 3 - Special Mark - Fl Y 5s light character

56°12.294'N 02°15.796'W

SP 4 - Special Mark - Fl Y 5s light character

56°14.038'N 02°18.975'W

SP 5 - Special Mark - Fl Y 5s light character

56°18.924'N 02°18.951'W

 

Four cardinal buoys are due to be deployed the week commencing 16th March. Planned deployment locations

 

Name Location

NNG - North Cardinal - Quick (Q) white light character

56°20.425'N 02°14.617'W

NNG - East Cardinal - Q (3) 10 s white light character

56°14.329'N 02°08.558'W

NNG - South Cardinal - Q (6) + Long (L) FL 15 s white light character

56°12.294'N 02°09.760'W

NNG - West Cardinal - Q (9) 15 s white light character

56°17.057'N 02°21.084'W

 

A steel chain will be connected to each marker buoy, and the chain will be present through the water column, connected to an anchor placed on the seabed.

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Replacement Boulder Clearance Vessel - Neart na Gaoithe Offshore Wind Farm

Neart na Gaoithe Offshore Wind Farm Limited will replace the current boulder clearance vessel Sartor with the Vos Sweet (PCPE) from 10th August 2021, at the earliest to undertake remaining seabed preparation works within the Wind Farm Area.

Mariners are advised that Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) are due to replace the current boulder clearance vessel Sartor. The Sartor will be replaced by the Vos Sweet (PCPE) from 10th August 2021, at the earliest. The Vos Sweet (PCPE) will undertake the remaining seabed preparation works within the Wind Farm Area.

 

The Vos Sweet (PCPE), will carry out the remaining boulder relocation operations in preparation for installation of the inter array cables in the Wind Farm Area. The Sar Fame will be undertaking boulder relocation using a Subsea Multi-Tool Remotely Operated Vehicle with a grab.

 

Relocation of boulders in areas of inter array cable infrastructure is a critical pre-construction activity to reduce significant Health and Safety risks to the construction phase. Boulders will be relocated a short distance from their existing position only. Boulder relocation activities will take place within the Wind Farm Area in Figure 1.

 

Area of Operations

 

Mariners are advised that the Sar Fame will be mobilised to work within the Neart na Gaoithe (NnG) Wind Farm Area. The Wind Farm Area coordinates are provided in the table below. The remaining works are expected to last approximately four months, weather dependent.

 

Vessels are requested to remain at least 500 metres away from the work vessel.

 

 

LONGITUDE (DD.MM.MMM)

LATITUDE (DD.MM.MMM)

WIND FARM AREA

 

002° 09.898' W

56° 15.271' N

002° 09.255' W

56° 12.721' N

002° 13.998' W

56° 12.752' N

002° 16.293' W

56° 12.766' N

002° 19.628' W

56° 15.479' N

002° 20.055' W

56° 15.827' N

002° 20.232' W

56° 17.430' N

002° 17.826' W

56° 19.752' N

002° 16.518' W

56° 20.312' N

002° 14.910' W

56° 20.171' N

 

Schedule

 

The boulder relocation works commenced on the 2nd April 2021. The remaining boulder clearance works are expected to last approximately 4 months, until 30th September 2021, weather dependent.  It is currently anticipated that, weather permitting, construction works will be carried out on a continuous basis (i.e. 24-hour working, seven days a week) unless notified otherwise.

 

For updates on the progress of the works, information will be provided in the Weekly Notice of Operations available on the NnG project website here https://nngoffshorewind.com/resources/.

 

Vessels Associated with the Activity

 

Please be aware that by virtue of its mode of operation and the equipment deployed, the Sar Fame will at times be Restricted in its Ability to Manoeuvre as defined under COLREGS (International Regulations for Preventing Collisions at Sea 1972, Rule 3). Masters of vessels are therefore requested to maintain their vessels and gears at a minimum safe distance from the Sar Fame of 500 metres when it is undertaking its work and showing the appropriate shapes and lights.

 

Vessel name:

Vos Sweet

Vessel role:

Boulder Relocation

Call sign:

PCPE

Maritime Mobile Service Identity:

246609000

On board contact:

Contact name: Vessel Master

Email: bridge@vossweet.fleetvroom.com

Phone: +31 620 133192

Onshore representative:

Contact name: Bob Kingdon

email: bobk@hughes-subsea.com

Phone: +44 (0) 7956 222203

 

Vessel name:

Seagull

Vessel role:

Guard Vessel

Call sign:

MVBO2

Maritime Mobile Service Identity:

311947000

On board contact:

Contact name: Vessel Master

Email: seagullbf74@gmail.com

Phone: +44 (0) 1261 878040 / +44 (0) 7895 919100

 

Vessel name:

Artemis

Vessel role:

Guard Vessel

Call sign:

MVIX5

On board contact:

Contact name: Vessel Master

Email: concordebf47@aol.com

Phone: +44 (0) 7949 663790 / +44 (0) 1261 455461

 

Vessel name:

Tranquillity S

Vessel role:

Guard Vessel

Call sign:

MJUH9

On board contact:

Contact name: Vessel Master

Email: spousekeil@yahoo.com  

Phone: +44 (0) 1346 454758

 

General Safety Advice

 

Construction activities are ongoing within the boundaries of the Neart na Gaoithe Offshore Wind Farm.  Mariners are advised to refer to the NnG Weekly Notice of Operations where up to date information regarding activities on site is broadcast. A copy of this notice and the Weekly Notice of Operations can also be found at https://nngoffshorewind.com/resources/.

 

Marine Coordination Contact Details

 

The following contact can provide more information if required. Please note that specific queries can also be addressed to the relevant vessel or shore based representative.

 

Telephone number

(daytime):

+44 (0) 1890 751415 (use Emergency contact only until further notice)

Emergency contact (24/7):

+44 (0) 7508 421406

Email:

nng.mc@smchse.com

Address:

NnG Offshore Wind Farm Marine Coordination Centre, Gunsgreen Basin, Eyemouth,

TD14 5SD

 

Fisheries Liaison

 

Fisheries liaison associated with the activity will be co-ordinated by Natural Power. For any commercial fishery queries please contact the NnG company Fisheries Liaison Officer (CFLO) Peter Berney, telephone: +44 (0)7391 402387 or email: NnG.FLO@naturalpower.com.  An Offshore Fisheries Liaison Officer (OFLO) will be present on the Sar Fame and can be contacted via VHF Channel 16.

 

Distribution List

 

A central list of recipients is maintained by the company Fisheries Liaison Officer; if you are not the appropriate recipient of these notices, or do not wish to receive the notices in the future, please contact us at NnG.FLO@naturalpower.com. A copy of this notice can also be found at https://nngoffshorewind.com/.   

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Commencement of Pile Installation Campaign - Neart na Gaoithe Offshore Wind Farm

Mariners are advised that Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) is due to commence pile installation within the Neart Na Gaoithe (NnG) Wind Farm Area. The work is due to begin week commencing 14th June 2021, at the earliest.

In preparation for the jacket foundation installation, three piles for each wind turbine location and offshore substation  platform will be installed. The piles will be installed by the Saipem 3000 (S3000) (call sign: C6SW6) into pre-drilled  sockets. Pile installation support will be provided by the Skandi Acergy (call sign: LAFD7) offshore construction vessel, which will arrive to site in late June 2021. The Skandi Acergy will transfer supporting materials and installation equipment between positions on the seabed adjacent to each foundation location. On arrival at each location, the S3000 will collect and utilise this wet-stored equipment during pile installation.  Once the three piles have been positioned within the pre-drilled sockets, grout will be inserted to secure them in place.

 

A supply vessel will be utilised to transport piles to NnG wind farm, as required.  Further information on the vessel for each visit will be provided on the Vessel Report and Weekly Notice to Mariners available at https://nngoffshorewind.com/resources/.

 

Area of Operations

Mariners are advised that the S3000 will be mobilised from Rotterdam (NL) to work within the NnG Wind Farm Area.

 

All vessels are requested to remain at least 500 metres away from all work vessels and the static fishing gear remains as shown in the below table.

 

 

WIND FARM AREA

LONGITUDE (DD.MM.MMM)

LATITUDE (DD.MM.MMM

002° 09.898' W

56° 15.271' N

002° 09.255' W

56° 12.721' N

002° 13.998' W

56° 12.752' N

002° 16.293' W

56° 12.766' N

002° 19.628' W

56° 15.479' N

002° 20.055' W

56° 15.827' N

002° 20.232' W

56° 17.430' N

002° 17.826' W

56° 19.752' N

002° 16.518' W

56° 20.312' N

002° 14.910' W

56° 20.171' N

 

EXCLUSION TO STATIC GEAR

LONGITUDE (DD.MM.MMM)

LATITUDE (DD.MM.MMM)

002° 20.566' W

56° 15.680' N

002° 20.849' W

56° 17.468' N

002° 18.242' W

56° 19.938' N

002° 16.611' W

56° 20.613' N

002° 14.363' W

56° 20.392' N

002° 09.300' W

56° 15.334' N

002° 08.661' W

56° 12.651' N

002° 09.058' W

56° 12.405' N

002° 16.505' W

56° 12.410' N

 

Schedule

The pile installation work is due to begin week commencing 14th June, at the earliest. It is anticipated that the works will be completed by mid-December 2021, weather dependent. 

 

Weather permitting, construction works will be carried out on a continuous basis, 24-hours per day, seven days a week. 

 

For updates on the progress of the works, information will be provided in the Weekly Notice of Operations available on the NnG project website: https://nngoffshorewind.com/resources/.

 

Vessels Associated with the Activity

Please be aware that by virtue of its mode of operation and the equipment deployed, the S3000 and Skandi Acergy will at times be Restricted in their Ability to Manoeuvre as defined under COLREGS (International Regulations for Preventing Collisions at Sea 1972, Rule 3). Masters of vessels are therefore requested to maintain their vessels and gears at a minimum safe distance from these vessels of 500 metres when they are undertaking it work and showing the appropriate shapes and lights.

 

Vessel name:

Saipem 3000

Vessel role:

Pile Installation Vessel

Call sign:

C6SW6

Maritime Mobile Service Identity:

311516000

On board contact:

Contact name: Vessel Master

Email: captain.s3000@saipem.com   

Phone: +39 02 010 24650

Onshore representative:

Contact name: Ben Stokes

Email: Benjamin.Stokes@saipem.com 

Phone:  +44 7833 479 546

 

Vessel name:

Skandi Acergy

Vessel role:

Offshore Construction Vessel

Call sign:

LAFD7

Maritime Mobile Service Identity:

257691000

On board contact:

Contact name: Vessel Master

Email: Acergy.captain@acergy.dof.no 

Phone V-Sat: +47 23 67 54 04 

Or Vessel Bridge Contact 

Email: Acergy.bridge@acergy.dof.no 

Phone V-Sat: +47 23 67 54 05

Onshore representative:

Contact name: Stig Rabben (Designated Person Ashore – DPA)

Email:  Stig.Rabben@dof.com 

Phone:  +47 992 03 609

 

One guard vessel is currently within the wind farm site supporting NnG Offshore Wind Farm construction. The guard vessels will be one of the below, which can be contacted as follows, if required:

 

Vessel name:

Seagull

Vessel role:

Guard Vessel

Call sign:

MVBO2

Maritime Mobile Service Identity:

311947000

On board contact:

Contact name: Vessel Master

Email: seagullbf74@gmail.com

Phone: +44 (0) 1261 878040 / +44 (0) 7895 919100

 

Vessel name:

Artemis

Vessel role:

Guard Vessel

Call sign:

MVIX5

On board contact:

Contact name: Vessel Master

Email: concordebf47@aol.com

Phone: +44 (0) 7949 663790 / +44 (0) 1261 455461

 

Vessel name:

Tranquillity S

Vessel role:

Guard Vessel

Call sign:

MJUH9

On board contact:

Contact name: Vessel Master

Email: spousekeil@yahoo.com  

Phone: +44 (0) 1346 454758

 

Port of Operation

The S3000 will mobilise from Rotterdam, NL. The Skandi Acergy will mobilise from Blyth, UK.

 

Adverse weather conditions

Upon adverse weather conditions, if the S3000 and Skandi Acergy are not able to hold on position, they will both seek shelter or return to a Port within the Firth of Forth.

 

General Safety Advice

Construction activities are ongoing within the boundaries of the Neart na Gaoithe Offshore Wind Farm.  Mariners are advised to refer to the NnG Weekly Notice of Operations where up to date information regarding activities on site is broadcast. A copy of this notice and the Weekly Notice of Operations can also be found at https://nngoffshorewind.com/resources/

 

Marine Coordination Contact Details

 

The following contact can provide more information if required. Please note that specific queries can also be addressed to the relevant vessel or shore based representative.

Telephone number

(daytime):

+44 (0) 1890 751415 (use Emergency contact only until further notice)

Emergency contact (24/7):

+44 (0) 7508 421406

Email:

nng.mc@smchse.com

Address:

NnG Offshore Wind Farm Marine Coordination Centre, Gunsgreen Basin, Eyemouth,

TD14 5SD

 

Fisheries Liaison

Fisheries liaison associated with the activity will be co-ordinated by Natural Power. For any commercial fishery queries please contact the NnG company Fisheries Liaison Officer (CFLO) Peter Berney, telephone: +44 (0)7391 402387 or email: NnG.FLO@naturalpower.com.  An Offshore Fisheries Liaison Officer (OFLO) will be present on the Sar Fame and can be contacted via VHF Channel 16.

 

Distribution List

A central list of recipients is maintained by the company Fisheries Liaison Officer; if you are not the appropriate recipient of these notices, or do not wish to receive the notices in the future, please contact us at NnG.FLO@naturalpower.com. A copy of this notice can also be found at https://nngoffshorewind.com/.   

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Survey - Potential Affleck Pipeline Route (Ref: 1297)

A 7 Day Potential Affleck Pipeline Route survey using MV Ocean Resolution call sign: 3EIP9 between 15th September 2021 - 31st December 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline Limited

Ocean Resolution

3EIP9

N/A

15/09/2021 - 31/12/2021

For 7 Days

30

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Survey - Tolmount Platform (Ref: 1314)

A 2 Day survey at the Tolmount Platform using the Geo Ocean III call sign: LXGP between 20th September 2021 - 15th October 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

GEOxyz UK Limited

Geo Ocean III

LXGP

N/A

20/09/2021 - 15/10/2021

For 2 Days

42

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Survey - Victor Area (Ref: 1312)

A 2 Day survey at the Victor Area using the Fugro Galaxy call sign: C6YY4 between 25th September 2021 - 31st December 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB Marine

Fugro Galaxy

C6YY4

N/A

25/09/2021 - 31/12/2021

For 2 Days

49

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Survey - Chestnut Field (Ref: 1280)

A 4 Day survey of the chestnut field using the Fugro Searcher call sign: 3EUY6 between 15th September 2021 - 31st October 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB (North) Marine Ltd

Fugro Searcher

3EUY6

N/A

15/09/2021 - 31/10/2021

For 4 Days

22

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Habitat assessment & environmental baseline survey

A habitat assessment and environmental baseline survey will be carried out by the vessel Ocean Reliance. Survey techniques to be used: Hull mounted Multi Beam Echo Sounder (MBES), towed side scan sonar buoy in water depths <500m, buoy towed 10m above seabed, maximum 1,700m behind vessel.  Sediment sampling using dual Van Veen garb. Seabed photography using drop camera.

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Pre-Decommissioning Environmental Baseline Survey - Chestnut Field

Spirit Energy will undertake a marine site (seabed) survey in the vicinity of the Hummingbird Floating, Production, Storage and Offload vessel that is currently located over the Chestnut field in the central North Sea using the Fugro-operated M.V. Fugro Searcher survey vessel. The planned survey area, which will extend over 19.25 km2, is located within Block 22/2a of the United Kingdom Continental Shelf. A combination of geophysical and environmental sampling techniques will be undertaken.

The M.V. Fugro Searcher will mobilise in Aberdeen as soon as the 21st September 2021. The survey is expected to take 4 days (not including any allowance for weather downtime).

 

The geophysical component of the survey will involve multibeam echosounder and sidescan sonar techniques with the vessel underway (but not towing any survey apparatus). The environmental component of the survey will involve seabed (benthic) sediment ‘grab’ sampling, and seabed photo/videography techniques being undertaken at approximately 30 stations (with the vessel stationary). 

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Rig - Stena Spey

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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NO-UK Telecoms cable in UK TW and EEZ - Proposed Cable

Global Marine are continuing the installation of the proposed NO-UK Telecommunications cable in UK TW and EEZ. Pre-installation rock placement is complete, with cable installation starting on 20 July 2021. Details below.

Please be advised that Global Marine are conducting the installation of the proposed NO-UK Telecommunications cable in UK TW and EEZ. Please note that there will be numerous vessels associated with the project. These are summarised below:

  • Shore End Works  30th August – 6th September 2021

The Green Isle vessel as well as two smaller (<7m LOA) support RIBs (Echo and Speedbird) will be conducting intertidal and nearshore trenching works between 55°05.7445’N 1°29.3906’W & 55°05.8989’N 1°27.8456’W.

 

  • Cable installation (UK TW - EEZ)  23rd July – 5th September 2021

The Normand Clipper  will be installing the proposed NOUK cable from the landing point at Seaton Sluice and laying the cable towards Norway.

 

  • Post Lay Inspection Burial (PLIB) (UK TW - EEZ) 7th September – 15th September 2021

The Grand Canyon III (specification attached) will be conducting further PLIB activity along the cable route. Timings and locations of this activity is TBC.

 

The Grand Canyon III will be conducting further PLIB activity along the cable route. Timings and locations of this activity is TBC.

  • Post installation rock placement vessel (UK EEZ) 29th Ssptember – 1st October 2021

The Stornes vessel will then be conducting post installation rock placement at 4 pipeline crossings. These are located at

(55Ëš19.2785’N 0Ëš18.1219’W), (55Ëš33.6028’N 0Ëš42.0795’E), (55Ëš 57.2785’N 1 Ëš38.5306’E) & (56°1.7791’N 1°55.4618’E).

 

The vessels will be limited in manoeuvrability. Other vessels should maintain a distance of at least 1NM from the cable ship during operations. 

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Confirmed UXO - Seagreen Offshore Windfarm

A confirmed UXO target has been located within the Seagreen Offshore Windfarm construction site. The target has a 500 metre exclusion zone around it with immediate effect. The vessel Glomar Worker will transmit a securite broadcast at 6 hourly intervals to alert all vessels in the area.

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Rig - Deepsea Yantai

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Transocean Endurance

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - West Linus

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Erda

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Shetland HVDC Link - Anomaly Inspection & Additional Geophysical Survey

NKT, on behalf of Scottish Hydro Electric Transmission, will be surveying and investigating geophysical anomalies caused by objects on the seabed surface or buried, along the Shetland HVDC Link that were identified during the recent geophysical survey, with a view to determining whether these are potential unexploded ordnance (pUXO). An additional geophysical survey will also be completed in the approaches to Noss Head, using a Remotely Operated Vehicle (ROV) that will be towed along the route.

The operation is to complete survey and investigation works only, UXO clearance shall not be undertaken. The investigation shall, within the area of operation, only identify the pUXO as: UXO, suspected UXO or as non-UXO. It is of high importance that the geophysical anomalies are identified with the best possible accuracy.

 

The investigation survey will involve the use of Multibeam Echosounder (MBES), ROV and dredge pump, which involves the use of locally deployed equipment rather than any towed systems. Any debris that can positively be identified as non-UXO will be brought to deck if safe and reasonable to do so and disposed of appropriately onshore.

 

The anomaly investigation survey areas within the cable corridor are provided in this notice. An estimated 10 anomalies have been identified across the four areas. The additional ROV geophysical survey on the approach to Noss Head will cover a separate area of approximately 6km in length. The coordinates presented in this notice provide the simplified centreline of the survey areas, the geophysical and investigation survey works will be completed -/+100m either side of the centreline.

 

All survey and investigation activities will be conducted by the ‘Noordhoek Pathfinder’. Please be aware that the vessel will be restricted in her ability to manoeuvre as defined under COLREGs (International Regulations for Preventing Collisions at Sea 1972). Masters of vessels are therefore requested to maintain their vessels at a minimum safe passing distance of 500 metres when it is undertaking work and showing the appropriate shapes and lights in accordance with COLREGs Rules 16 and 18.

 

Legal Notice

Please be advised that this Notice to Mariners should be treated as official notice of the nature, duration and location of the works which are scheduled to take place. During the period of this notice, failure to remove equipment or entry into the identified location in a manner that would constitute a hazard to the operations described may be considered a breach of the Convention on International Regulations for Preventing Collisions at Sea 1972 and/or the Merchant Shipping Act 1995 (a breach of which can carry criminal sanctions). Additionally, should any failure to remove any equipment within the notified location, or the presence of any vessel, prevent, obstruct, or delay the works, Scottish Hydro Electric Transmission Plc may consider taking legal action to remove the obstruction and/or seek damages for any delay, in addition to any legal costs in doing so.

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Survey - Teal West, Teal Valve Skid, Anasuria FPSO

Fugro Galaxy will be surveying the areas Teal West, Teal Valve Skid, Anasuria FPSO from 1st October 2021.

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Boulder next to Judy gas line

Boulder (2.4m x 2.5m x 1.5m) next to Judy gas pipeline. Boulder has been dragged next to the line by a fishing net. Fishing net is tangled around the boulder and associated trawl board is located nearby. Pipeline is marked on admiralty charts so should not be fished over. However, if it is there is a risk that another fishing net could become tangled around the boulder. This has potential to cause harm to the fishing net / boat and also pipeline.

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Deployment & operation of two Acoustic Doppler Current Profilers-Erebus Floating Offshore Wind Farm

To inform the engineering designs and Environmental Impact Assessments (EIA) for the proposed Erebus Floating Offshore Wind Farm (FLOW) offshore export cable, two frame mounted Acoustic Doppler Current Profilers (ADCP) have been successfully deployed within Rows Rocks Channel, near the entrance to the Milford Haven Waterways.

The ADCPs will be in situ on the seabed for up to 3 months. ADCP dimensions and an image of the ADCP and frame to be deployed is shown below. A marker buoy will not be used during deployments.

 

Item

Location 1 (mid channel)

Location 2 (near shore)

Seabed frame weight

240Kg

100kg

Seabed frame dimensions

1.5 x 1.5m

1m x 0.75m

ADCP height above seabed

0.5m

0.3m

Highest point above seabed from entire equipment

0.9m

0.3m

 

The ADCPs deployment locations are provided below:

 

Location 1 (mid channel)

Degrees Minutes Seconds

 51°40’44.04” N

 005°08’10.80” W

Degrees Decimal Minutes

 51° 40.734‘ N

 005° 08.180’ W

Location 2 (near shore)

Degrees Minutes Seconds

 51°41’14.76” N

 005°07’21.12” W

Degrees Decimal Minutes

 51° 41.246‘ N

 005° 07.352‘ W

 

It is intended for the ADCPs will remain in situ for 3 months and therefore mariners should navigate with caution.

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Pentland Floating Offshore Wind SEAWATCH LiDAR Buoy

Fugro have deployed a SeaWatch LiDAR Buoy (SWLB) within the Pentland Firth, located off the north coast of Scotland. The equipment will be deployed for approximately one year and has been moored through a combination of steel chains, rope and rubber cord to approximately 2250 kg anchor weight at the seabed.

Fugro have deployed a SeaWatch LiDAR Buoy (SWLB); this is a sea state measurement instrument (referred to as ‘the equipment’). The deployment location is within the UK Sector of the North Sea off the north coast of Scotland.

  • The equipment was deployed on 29 August 2021, and will be deployed for approximately one year.
  • The equipment's location is provided within the attached Notice to Mariners.
  • Scheduled maintenance of the equipment is planned every six months, but unforeseen maintenance may be required.
  • The equipment has been moored through a combination of steel chains, rope and rubber cord to approximately 2250 kg anchor weight at the seabed.
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CrossChannel Fibre cable in UK TW and EEZ - Proposed Cable

IT INTERNATIONAL TELECOM are due to commence Route Clearance – Main Lay Cable Operations of the proposed CrossChannel Fibre (CCF) Telecommunications cable in UK TW and EEZ. Route Clearance and Pre Lay Grapnel Run will start on 15 September 2021. Details below.

Please be advised that initial seabed route clearance operations along the CCF (Cross Channel Fibre) cable route between Brighton, UK and Dieppe, France are currently due to commence in UK waters off Brighton on 15 September 2021.

Deployed Guard Vessels will monitor the exposed areas of cable while burial progresses and advise of safe distances locally. VHF CH 16 will be monitored at all times and will be used to contact the coastguard in the event of an emergency.

 

Please note that there will be numerous vessels associated with the project. These are summarised below:

 

  • Route Clearance 15 September – 20 September

In preparation for the installation of the CCF subsea telecommunications cable, the IT INTREPID as well as two support tugs (two of four: EN AVANT 1, EN AVANT 10, EN AVANT 9 and/or EN AVANT 20) and a smaller support vessel (<10m), WORKING GIRL II, are due to carry out initial seabed clearance operations between 50°48.391'N 00°09.278’W and 50°15.679'N 00°03.671'E.

 

  • Pre Lay Grapnel Run 24 to 26 September 2021

IT INTREPID will then perform PLGR (Pre-Lay Grapnel Run) along the entire CCF cable route (working in a northerly direction from Veules-Les-Roses near Dieppe to Brighton).

 

  • Cable Installation (UK TW - EEZ) 29 September – 05 October 2021

IT INTREPID will be installing the proposed CCF cable from 50°46.2307'N and 00°09.8037’W and laying the cable towards France.

BRIGHTON DIVER III and MAXIMUS will be installing the proposed CCF cable from the landing at Brighton to 50°46.2307'N and 00°09.8037’W.

 

  • Post Lay Inspection Burial (PLIB) (UK TW - EEZ) 12th October to 20th October 2021

IT INTREPID will be conducting PLIB activity along the cable route. Timings and locations of this activity is TBC.

 

 

The vessels will be limited in manoeuvrability. Other vessels should maintain a distance of at least 500m from the cable ship during operations.

 

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Maersk Highlander at Elgin WHP B

The jack-up rig Maersk Highlander is alongside Elgin WHP B – within 500m zone for the next 6 months (approximately)

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Survey - Area Test (Ref: 1284)

A 7 Day Area Test Survey between 13th September 2021 - 20th September 2021 using vessel Ocean Marlin call sign: LEEH

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Blue Ocean Seismic Services Limited

Ocean Marlin

LEEH

N/A

01/09/2021 - 31/10/2022

For 7 Days

34, 35

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Decommissioning related activities – HCF / Topsides Dismantlement of the Amethyst B1D Installation

Planned HCF and Topside dismantlement works are due to commence on the Amethyst B1D Platform (UKCS 47/15a). The Jack up Barge will depart from Inde 23A and transit to the Amethyst field, where it will commence HCF/Topsides dismantlement operations. The work will continue on the Amethyst B1D location for approximately 104 days.

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Moray West Geophysical Site investigations

Geophysical works are anticipated to commence on, and no earlier than, 4th September 2021, and survey duration is expected to be approximately 6 weeks. Geophysical surveys are forecasted to be completed by 16th October 2021, but the exact survey duration and completion date will depend on weather and progress of the works.

Geophysical works are anticipated to commence on, and no earlier than, 4th September 2021, and survey duration is expected to be approximately 6 weeks. Geophysical surveys are forecasted to be completed by 16th October 2021, but the exact survey duration and completion date will depend on weather and progress of the works.

Scope of work to include: Offshore geophysical surveys will comprise multi beam echo sounder (MBES), single beam echo sounder (SBES), side scan sonar (SSS) sub bottom profiler (SBP) and magnetometer.

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Hazard - Burnt-out hull of 30ft yacht

Falmouth Fire Boat applied water to the burning vessel which sunk.

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Unmanned Bathymetry Surveys - NEP Project

3 XOcean Unmanned Vessels undertaking hull mounted bathymetry surveys. Vessels are 4.5m x 2.2m x 2.2m and are fully controlled via satellite 24 hours a day. All vessels will be using Hartlepool and Grimsby to transit in and out of for bad weather.

An unmanned survey operation to collect hull mounted bathymetry data using 3 vessels. The vessels are all fully controlled 24 hours a day using satellite communications. During periods of bad weather XOcean will use Hartlepool or Grimsby to transit to for shelter. The area of operation will cover the project area at Endurance and two proposed pipeline route corridors.

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Survey - Hewett Pipelines (Ref: 1307)

A 5 Day survey of the Hewett Pipelines using the Vessel Isle of Jura call sign: MFFY6 between 1st September 2021 - 31st October 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

ENI UK Limited

Isle of Jura

MFFY6

 

01/09/2021 - 31/10/2021

For 5 Days

48, 52

Type See detailed map on our bulletin website
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Seagull- Installation of Manifold and Umbilical

Installation of manifold at Seagull field via vessel. Trenching and installation of umbilical between Seagull and ETAP installation via vessel

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Survey - Solar and Corona Site (Ref: 1294)

A 8 Day survey at the Solar and Corona Site using the Vessel MV Kommandor call sign: MCJO2 between 6th September 2021 - 31st December 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline Geosurvey Limited

MV Kommandor

MCJO2

1250m

3m

01/09/2021 - 15/11/2021

For 8 Days

9

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Survey - MNSH Phase 2B (Ref: 1292)

A 51 Day site survey using the Vessel Akademik Nemchinov call sign: UETM between 1st September 2021 - 15th November 2021.

 

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

GX Technology Eame Limited

Akademik Nemchinov

UETM

6000m

8m

01/09/2021 - 15/11/2021

For 51 Days

43, 44

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Survey - EIG Well VSP (Ref: 1288)

A 2 day survey at EIG Well VSP between 1st September 2021 - 31st December 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Totalenergies E&P UK Limited

N/A

N/A

01/09/2021 - 31/12/2021

For 2 Days

22

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Survey - Area Test CHIRP (Ref: 1289)

A 7 Day area test survey using the Vessel Fugro Venturer call sign: C6CG3 between 1st September 2021 - 31st October 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB (North) Marine Limited

Fugro Venturer

C6CG3

N/A

01/09/2021 - 31/10/2021

For 7 Days

13

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Rig - Deepsea Nordkapp

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Maersk Invincible

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Geophysical Survey - Area 500/4

A survey of aggregate licence area 500/4 will be completed during September 2021. Using Vessel: Titan Discovery, a 13 m long catamaran. The vessel will tow on the sea surface a short hydrophone and boomer seismic source about 20 metres astern during the survey.  The multibeam echo sounder will be hull mounted. Survey coverage and duration: 60 line kilometres, taking about 1.5 days to complete.  East to west lines surveyed at 100 metre spacing.  North to south lines at 500 metre spacing.

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Survey - West of Loch na Keal, Isle of Mull

The Scottish Salmon Company (SSC) will be carrying out a Hydrographic survey in August in the waters west of Loch na Keal, Isle of Mull. The proposed works are planned to start on 17th August 2021 and will last approximately 70 days’, weather depending.

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Rig - West Phoenix

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Boulder Clearance and Relocation Works - Seagreen Offshore Windfarm

A boulder clearance and relocation campaign will take place within Seagreen Offshore Windfarm site boundary. An ROV with integrated grab tool will be launched using the vessels heave compensated crane to facilitate the relocation of pre-selected boulders from working areas. Any seabed debris located within working areas will also be relocated.

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Exposed Pipe - Installation of temporary marker buoy

This notice to mariners (NtM) relates to the installation of a temporary marker buoy positioned at the north of the end of the exposed export cable ducts protruding from the seabed. During the period of the nearshore intervention works (described in NtM LF500013-MIP-DOG-NOT0012), the temporary marker buoy will be positioned to the north of the works area.

On completion of the nearshore works, the temporary marker buoy will be repositioned between the exposed ducts and a further revised NtM published.

This NtM supersedes LF500013-MIP-DOG-NOT005, issued on the 1st March 2021

 

The marker buoy characteristics are: Yellow Special Mark, light pattern: Fl(Y)5s

 

Mariners are reminded to navigate with caution, keeping a safe passing distance from the temporary marker buoy and keeping a continuous watch on VHF Ch. 70/16 when navigating the area.

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Eastern Link - Marine Survey Operations

Marine Survey Works for the Eastern Link Project.These works precede the installation of a HVDC electricity transmission link from the East coast of Scotland (Sandford Bay, Peterhead) to the East coast of England (South of Bridlington/ Flamborough Head).

The marine survey works are being carried out by Next Geosolutions UKCS Ltd. on behalf of National Grid Electricity Transmission Plc and Scottish Hydro Electric Transmission Plc.

 

The marine survey activities are planned to commence at Sandford Bay and close to Peterhead from the 20th April 2021. Upon completion of the Nearshore Marine Survey at Peterhead the vessel will transit to Bridlington to complete the Nearshore Marine Survey at Bridlington. Works will continue along the offshore route until August 2021. The marine survey works covered by this NtM are to be conducted by three survey vessels, divided into the following activities, as indicated:

 

Date Activity Vessel Call Sign
20 April 2021

Nearshore Marine Survey Peterhead

ACTIVITY COMPLETED

SV Humber Guardian 2ENC3
June 2021

Nearshore Geotechnical Survey Peterhead

ACTIVITY COMPLETED

MultiCat Forth Warrior 2JHR8
May - Sept 2021

Offshore Marine Survey, Peterehead to Bridlington

ACTIVITY ONGOING

MPSV Ievoli Cobalt IBOK
April / May 2021

Nearshore Marien Survey Bridlington

ACTIVITY COMPLETED

SV Humber Guardian 2ENC3
May 2021

Nearshore Geotechnical Survey Bridlington

ACTIVITY COMPLETED

MultiCat Forth Warrior 2JHR8

 

The Nearshore works are to be conducted West, of point AC6, Longitude 1° 43.5’W at Peterhead and West of point AC61, Longitude 0° 03.7’W South of Flamborough Head, Bridlington, reference Figures 1 and 2 overleaf. All vessels shall pass at a safe speed and distance, whilst fishing vessels shall remain at a safe distance (approximately 500 meters) (COLREGs Rule 16 & 18) from the areas identified during marine survey operations. The aforementioned survey vessels will be restricted in her ability to maneuver and shall deploy towed sensors during geophysical survey operations only. The survey vessels will monitor VHF Channel 16 at all times. Mobile contacts for the vessels are listed at the end of this NtM.

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Marine Licence Area 522 - West of Isle of Wight

On behalf of CEMEX UK Marine Ltd this notice is to advise that the MMO has granted a Marine Licence to extract sand and gravel from Area 522 (west of the Isle of Wight) and work is due to commence on or after 17th September 2021.

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Survey - Brent Pipeline Survey

Shell plans to conduct a geophysical and geotechnical survey in the Brent area around the pipelines of Brent platforms and in the area around the pipeline between Brent C and Comorant A.

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Leak Detection and Repair - Eris/Ceres Field

The Boka Polaris, Dive Support Vessel (DSV) will be conducting leak detection and repair activities in the Eris/Ceres field areas in UKCS blocks 47/8 and 47/9. Mobilisation is currently planned on or around 3rd September 2021 and the operation is expected to last for a total period of up to 11 days. This schedule is subject to change depending on operational requirements.

The Boka Polaris, Dive Support Vessel (DSV) will be conducting leak detection and repair activities in the Eris/Ceres field areas in UKCS blocks 47/8 and 47/9.  Mobilisation is currently planned on or around 3rd September 2021 and the operation is expected to last for a total period of up to 11 days.  This schedule is subject to change depending on operational requirements.  All activity will be conducted within existing 500m zones of subsea infrastructure and there will be no towed equipment.  The DSV will be stationary over the infrastructure while the operations are taking place.  

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Rig move - Ensco 92 to Mimas MN field

Chrysaor plan to move the Ensco 92 Jack-up drilling rig from the Boulton HM field location to the Mimas MN field location to perform abandonment operations on the Mimas MN 48/09a-N1 development well.

Destination:

 

Mimas MN 48/09a-N1 development well

53° 45' 46.51" N

1° 42' 21.95" E

 

Throughout well abandonment operations there will be a dedicated ERRV on location monitoring the surrounding sea area.

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Wellhead Removal - Lancaster 4z

Decommissioning of the Lancaster Wellhead from 1st October 2021 until 30th November 2021.

  • Transit to Lancaster.
  • Perform ROV as found survey
  • Connect rigging equipment to wellhead protective structure (WHPS).
  • Recover WHPS to vessel.
  • Deploy and engage cutting tool on wellhead
  • Perform wellhead cut 10ft below seabed.
  • Recover cutting tool and wellhead.
  • Perform ROV as left survey.
  • Demobilise vessel.
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Oil and Gas Debris - Whirlwind wellhead location

Debris present at the whirlwind well location are: Deadman anchor, fishing nets, gratings and Chicksan pipework. Plans to recover these in October 2021.

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Rig - Maersk Reacher

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Seafox 7

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Valaris 72

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Swift 10

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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West of Orkney Windfarm Reconnaissance Geophysical Survey 2021

Offshore Reconnaissance Survey of 8 proposed cable landfall spread out across the Caithness and Orcadian coastal areas in preparation for a potential offshore wind farm development for Offshore Wind Power Limited.

A reconnaissance geaophysical survey will be carried out in the vicinity of 8 potential cable landfall locations which are currently under consideration for a future windfarm development coordinates of each of the survey areas are provided in the attached document.

 

Activities will include use of the following survey kit at each of the 8 cable landfalls:

  • Multi Beam Echo Sounder (MBES) - used to obtain detailed 3-dimensional (3D) maps of the seafloor which show water depths. They measure water depth by recording the two-way travel time of a high frequency pulse emitted by a transducer.
  • Sub Bottom Profiler (SBP) - used to identify and characterise layers of sediment under the seafloor. A transducer emits a sound pulse vertically downwards towards the seafloor, and a receiver records the return of the pulse once it has been reflected off the seafloor.
  • Sound Velocity Profiler (SVP) - The SVP continuously emits high frequency pulses as it is lowered towards the seafloor in order to measure the speed of sound within the water column. This technology also makes use of sonar to determine how quickly sound attenuates in the marine environment, which can aid in calibrating geophysical survey equipment.

 

Mariners are advised to keep a safety clearance of the vessel of no less than 500m.

 

Port of Operation

Spectrum Geosurvey will mobilise / operate out of the port of Scrabster (Pentland), Stromness (Orkney) – Please note we intend to use smaller ports near locations in Orkney.

Survey duration

The survey window will commence on 4th September 2021 and run through to end of September. The total duration for survey activity is expected to take approximately 22 days. The survey vessel will be present in the region for an overall period of up to 40 days allowing for time to travel between the survey sites and an indicative 50 % downtime for weather and technical constraints.

 

Contact Details for Fisheries Liaison

Fisheries Liaison is being carried out by Xodus Group, for all fisheries enquires please contact Xodus Group Fisheries Liaison Officer (FLO) Gareth Jones.

Telephone number: +44 (0)1224 219996

Email: OWPLFisheries@xodusgroup.com

 

Spectrum Geosurvey Contact Details:

Further enquiries should be addressed to the following people:

 

Spectrum’s Contact 

David Hubble Notification to Mariners for OWPL Reconnaissance Geophysical Survey August 2021

01590 820 050

Info@spectrum-offshore.com

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Exposed power cable in free-span (up to 2 metres off the seabed)

A recent survey has detected a 17m long cable suspension (free-span), that is up to 2 metres high, on the BritNed Interconnector HVDC cable. This poses the risk of entrapment of trawling gear; all vessels fishing are advised to keep well clear. At its maximum height, the suspension is in the order of 1.5 - 2m clear of the seabed. BritNed are actively looking at remedial options, but in the meantime all fishing vessels are advised to give this location a wide berth.

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Rig - Maersk Integrator

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Pipeline Tie-Ins - Buzzard Field

The Seven Pegasus dive support vessel (DSV) is planned to mobilise on 20 August 2021 and commence work on 21 August 2021 to complete subsea tie-ins at the Buzzard Platform and the Buzzard northern terrace manifold. These works are expected to conclude by 6 October 2021.

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Dive and R.O.V. operations - Robin Rigg Offshore Wind Farm

Dive and R.O.V. surveys are to take place at all turbine positions inside wind farm perimeter. A safety distance of at least 500 metres is required around the dive vessel 'Katabatic' (Call Sign: MAMU2) at all times. Dive an R.O.V. operations will be carried out on 24hr basis.

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Survey - Leman 49/27B Debris Survey

PUK plan to undertake a debris survey at the Leman 49/27B installation. The earliest potential inspection date is the 20th August 2021 and latest completion date of 30th September 2021. Expected duration is 7 days. The Geo XYZ survey vessel Geosurveyor XI will complete the inspection.

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Survey - Leman 49/27C Debris Survey

Geosurveyor XI to carry out a debris survey at Leman 49/27C. PUK plan to undertake a debris survey at the Leman 49/27C installation. The earliest potential inspection date is the 20th August 2021 and latest completion date of 30th September 2021. Expected duration is 7 days. The Geo XYZ survey vessel Geosurveyor XI will complete the inspection.

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Survey - Wollaston 42/28a Debris Survey

Geosurveyor XI to undertake debris survey operations. PUK plan to undertake a debris survey at the Wollaston 42/28a subsea installation. The earliest potential inspection date is the 20th August 2021 and latest completion date of 30th September 2021. Expected duration is 7 days. The Geo XYZ survey vessel Geosurveyor XI will complete the inspection.

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Survey - Devil's Hole Horst (Ref: 1290)

A 71 Days Site Survey at Devil's Hole Horst using vessel Akademik Nemchinov call sign: UETM between 1st September 2021 - 31st July 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

North Sea Natural Resources Ltd

Akademik Nemchinov

UETM

N/A

01/09/2021 - 31/07/2022

For 71 Days

27, 28

Type See detailed map on our bulletin website
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Survey - Orlando ROV Integrity Inspection (Ref: 1293)

A 1 Day ROV Integrity Inspection of the Orlando area using the MV Deep Vision call sign: 2CVC8 between 18th August 2021 - 24th September 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Deepsea Ocean AS

MV Deep Vision

2CVC8

N/A

18/08/2021 - 24/09/2022

For 1 Day

3

Type See detailed map on our bulletin website
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Rig Move - Askepott

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Borgland Dolphin

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Maersk Resolve at Breagh A

The Maersk Resolve will be on location at the Breagh platform (42/13a) from 6th August 2021 until 31st December 2021

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Survey - Victor JM (Ref: 1283)

A 1 Day survey at the Victor JM using the Fugro Venturer call sign: C6CG3 between 6th August 2021 - 30th September 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB (North) Marine Ltd

Fugro Venturer

C6CG3

N/A

06/08/2021 - 30/09/2022

For 1 Day

49

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Drilling - Bunter Outcrop Borehole (Ref: 1285)

A 45 Bunter Outcrop Borehole Drilling From 20th August 2021 until 31st October 2021 using Rig Valaris 72

Company Rig

Towed Cable

Length & Depth

Duration Survey Block

Valaris

Valaris 72

N/A

22/08/2021 - 31/10/2022

For 45 Days

43

Type See detailed map on our bulletin website
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Survey - Orlando Well (Ref: 1282)

A 6 Day survey of the Orlando Well using the Fugro Venturer call sign: C6CG3 between 22nd August 2021 - 30th September 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB (North) Marine Ltd

Fugro Venturer

C6CG3

N/A

22/08/2021 - 30/09/2022

For 6 Days

3

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Survey - NEP Nearshore Integrated Site Survey (Ref: 1279)

A 10 day NEP Nearshore Integrated Site Survey Survey. Using Vessel Titan Endeavour call sign: 2ELT9 between 18th August - 30th September 2021

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Titan Environmental Surveys Limited

Titan Endeavour

2ELT9

N/A

18/08/2021 - 30/09/2022

For 10 Days

42, 47, 46, 40, 41

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Havhingsten Cable - surface laid cable

Please be advised that there are three areas of surface-laid cable, pending rock placement works in the second half of 2021.

Please be advised that the remaining post-lay burial (PLIB) works of the Havhingsten fibre optic telecommunication cable system have now been completed in the Irish Sea, but there are three areas of surface-laid cable which are pending rock placement works.

 

There is a maximum of 25m of cable surface laid with Uradact protection either side of the crossings listed below. Rock protection works will be carried out during the second half of 2021. It is advised that extra care is taken when vessels are operating near the areas and that no vessel should trawl within 0.25 nautical miles from the listed coordinates prior to rock placement. The rock berms will be over trawlable and in-line with industry standards.

 

Rock Placement Location Name

Latitude

Longitude

Western HVDC (S1.5)

53 ° 45.9867' N

003° 48.9137' W

Western HVDC (S1.2)

53° 54.7007' N

004° 58.3552' W

Western HVDC (S1.4)

53° 53.8396' N

004° 34.1792' W

 

For further information please contact the Fisheries Liaison Officer (FLO) / Fishing Industry Representative (FIR) numbers:

 

IoM Onshore FLO

Guy Sutton:                        rgsutton@outlook.com – 07624428332

 

FIR

Tom Watson:                     tomwatsonfleetwood@btinternet.com – 07903 173624

 

FLO (MarineSpace)

Bethan Owens:                 bethan.owens@marinespace.co.uk – 07833 557808

Claire Griffiths:                  claire.griffiths@marinespace.co.uk – 07498 550 586

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Survey - NW Schooner wellhead (Ref: 1278)

A 2 Day survey at the NW Schooner Wellhead using vessel Glomar Wave call sign: 3FXF4 between 20th August - 30th September 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Rovco

Glomar Wave

3FXF4

N/A

20/08/2021 - 30/09/2022

For 2 Day

44

Type See detailed map on our bulletin website
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Exposed and Free Span - Greater Gabbard Offshore Wind Farm

Results of the Greater Gabbard OFTO export cable survey. The chart lists the changes to the exposures on the three export cables, on the inshore section between KP 3 and KP 5 with a free span remaining around KP 4. Between KP 36 and KP 38 there are some exposed sections as the cables enter the site. In addition, although listed as exposures on the chart, there are areas of shallow burial at KP10 and a cable exposure on the interconnector cable within the site.

Please find attached a chart showing the results of the Greater Gabbard OFTO export cable survey. The chart lists the changes to the exposures on the three export cables, on the inshore section between KP 3 and KP 5 with a free span remaining around KP 4. Between KP 36 and KP 38 there are some exposed sections as the cables enter the site. In addition, although listed as exposures on the chart, there are areas of shallow burial at KP10 and a cable exposure on the interconnector cable within the site.

 

The exposed/shallow burial areas are shown as the coloured dots on the cable route highlighted in a black box.  Equitix (Greater Gabbard OFTO) have asked that all Fishermen operate with caution when fishing anywhere on the cable route and particularly the areas that are shallow buried around KP10.’

 

Coordinates of exposed/shallow burial areas are shown on the attached chart.

 

The OFTO is updating its risk assessments to determine the extent of remedial measures that may be required. Equitix intend to provide an update on remediation after the risk assessment exercise is complete.’

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Survey - North Loch Odhairn

The Scottish Salmon Company (SSC) will be carrying out a Hydrographic survey north of Loch Odhairn. The proposed works are planned to start on 4th August 2021 and will last approx. 100 days Using vessel Eilean A Fraoich call sign:2BPC9.

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Umbilical Exposure - Blythe and Elgood

Short section of Umbilical exposed on seabed. An umbilical has been laid and trenched between Blythe and Elgood. However, there has been found to be a short section of exposure on the umbilical. A safety vessel, Esvagt Champion, has been assigned to monitor the area to advise vessels to keep clear until remediation can be undertaken. The vessel will keep a listening watch on Channel 16 throughout, and request vessels to keep clear.

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Rig - West Bollsta

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Confirmed UXO - Seagreen Offshore Windfarm

A confirmed UXO target has been located within the Seagreen Offshore Windfarm construction site.

The target has a 500 metre exclusion zone around it with immediate effect. The vessel Glomar Worker will transmit a securite broadcast at 6 hourly intervals to alert all vessels in the area.

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Application for Offshore Development Area - Seagull Umbilical

Neptune E&P UK Ltd would like to request to establish an additional offshore development area in Block 22/29C for the Seagull Umbilical location.

The Seagull Field is located on UK licence P1622 Block 22/29C. 17km south of the Eastern Trough area Project (ETAP) Central Production Facility (CPF). Neptune will develop the Seagull reservoir as a subsea tie‐back to existing seabed infrastructure over the BP operated ETAP CPF. The development is high pressure and high temperature and Neptune is the Operator for the subsea development. Neptune will also drill and complete the Seagull Wells and shall retain overall Project responsibility.

The Seagull development will require installation of new subsea equipment as follows: Four Xmas Trees; a 4 slot manifold; a 17km control umbilical (including hydraulic, electrical and chemical supplies) direct from ETAP to Seagull; a 5km 10” production pipeline; a 5km 3.5” wash water pipeline from Seagull to the existing Egret manifold; and a Wye manifold adjacent to the existing Egret manifold, through which the new Seagull production pipeline will connect with the Heron cluster pipeline system connected back to the ETAP CPF. From ETAP CPF Seagull oil and gas will be exported to shore through the GAEL and FPS pipeline systems to the Kinneil Terminal onshore.

 

We already have an ODA established covering the Seagull drill centre and the Egret manifold and would like to request to extend the ODA to incorporate the entire Seagull works area. The extended Offshore development area will be required commencing from September 2021 ‐ March 2023.

 

 

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Confirmed UXO - Seagreen Offshore Windfarm

A confirmed UXO target has been located in the Seagreen Offshore Windfarm construction site.

The target has a 500 metre exclusion zone in place with immediate effect.

 

The on site vessel "Glomar Worker" will transmit a securite broadcast at 6 hourly intervals giving full details of the hazard to all vessel in the area.

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Inch Cape Offshore Met Mast AIS currently non-operational

Please be advised that the AIS on the Inch Cape Offshore Met Mast is currently non-operational. The marine navigation lights, foghorn, aviation lights remain operational.

Please be advised that the AIS on the Inch Cape Offshore Met Mast is currently non-operational. The marine navigation lights,  foghorn, aviation lights and remain operational. This fault will be investigated and notification provided once the AIS is operational again. 

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Rig - Irish Sea Pioneer

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Prospector 1

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig Move - Maersk Resilient

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Abandoned Well - 49/12-2

No structures left on the seabed – decommissioned fully.

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Survey - Outer Dowsing Offshore Wind

Outer Dowsing Offshore Wind (a joint venture between TotalEnergies and Green Investment Group) shall be conducting a 5 month offshore geophysical survey approximately 60km East of the Humber Estuary from 10th August to 29th December 2021.

Using vessel Guard Celena call sign : V7OY7. The survey vessel shall be towing a cable up to approximately 150m behind the vessel (the end marked by a tail buoy) at depths of up to 3m below sea level. The survey vessel shall have limited maneuverability so please allow a safe distance.

 

Company: Outer Dowsing Offshore Wind

Contractor: Enviros Survey & Consultancy Limited

Survey vessel : Guard Celena

Survey vessel call sign: V7OY7

 

Earliest start date: 10th August 2021 Latest finish date: 29th December 2021

 

It should be noted that the survey vessel shall be initially accompanied by a fishing vessel: Sorrento GY189 providing visual reconnaissance for any sea surface obstacles. Company : Outer Dowsing Offshore Wind

Contractor : NFFO Services Limited

Support vessel : Sorrento GY189

Support vessel call sign : 2XLE

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Survey - Dunnottar Exploration Well VSP (Ref: 1270)

A 1 Day Vertical Seismic Survey between 31st August 2021 and 31st August 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Chrysaor Petroleum

Company U.K Limited

 

5m

31/08/2021 - 31/08/2022

For 1 Day

30

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Rigmove - Seafox 4

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Export Cable Installation (Beach) - Hornsea Project Two

Ørsted have demobilised the export cable installation equipment from the beach and have buried all 3 export cables within the intertidal area.The export cable seaward of Mean Low Water Springs requires further burial works in the coming weeks.

Landfall Preparation and Cable Installation 

The export cable installation activities in the intertidal area are ongoing at the landfall at Horseshoe Point, Lincolnshire and will continue until approximately 30th September 2021. Works will be continual and intermittent throughout these periods.

 

It should be noted that export cable seabed preparation and installation seaward of mean low water springs is ongoing until end of 2021.

 

Vessels:

 

Vessel & Call Sign Activity

Ndurance

5BVH3

Cable Installation and burial

Coastal Vanguard

PCFH

AHT

Linestroom

PICW

AHT
Maagd Landfall tranporattion barge

Titan Endeavour

2ELT9

Nearshore Survey

 

 

 

 

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Survey - CHIRP Survey (Ref: 1274)

A 16 Day Site Survey From 15th August 2021 until 30th November 2021 using vessel Havila Subsea call sign: LGSY.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

MMT Sweden

Havila Subsea

LGSY

 

15/08/2021 - 30/11/2021

For 16 Days

211

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Survey - CHIRP Survey (Ref: 1273)

A 16 Day Site Survey From 15th August 2021 until 30th November 2021 using vessel Havila Subsea call sign: LGSY.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

MMT Sweden

Havila Subsea

LGSY

 

15/08/2021 - 30/11/2021

For 16 Days

211

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WilPhoenix MODU - Fotla Field

Wilphoenix MODU will be drilling in the Fotla field for Ithaca Oil and Gas Limited for approximately 90 days from 28th July until 25th October 2021.

Ithaca Oil and Gas Limited is planning to drill an exploration well into the Fotla reservoir to validate the geophysical interpretation of reservoir properties from seismic analysis.  Depending on initial findings, an appraisal programme will be carried out via up to two well sidetracks, with a third contingency sidetrack.  Fotla is located in Block 22/1b in the central North Sea, approximately 176km from the Scottish mainland (Peterhead), 46km from the UK/Norway median line in water depths of ca. 130m.

 

The rig will be onstation for aproximately 90 days.

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Scientific instrument mooring installations - Moray Firth

The University of Aberdeen has installed 26 subsurface scientific instrument moorings in the Moray Firth in the general area of the Jacky and Beatrice oil installations.

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Ocean Endeavor Drilling Activity

The Ocean Endeavor drilling rig will be transiting from the Arran North Field, to the Gannet Field on approx. 21st July 2021. It is expected to be fully moored on location on the 24th July 2021. Drilling activities will continue for approx. 60 days.

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Rig - Ocean Patriot

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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New Safety Zone: Buzzard Field Northern Terrace Manifold

Safety Zone Now Active OR New Safety Zone. The Buzzard Field ‘Northern Terrace Manifold’ has now been installed on the seabed. This now means the 500m Safety Zone is now in force. This Safety Zone is on the latest FishSAFE v42.

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Cable Installation - Amitie Subsea Cable System

Alcatel Submarine Networks UK Ltd.(ASN) has been contracted to carry out construction activities of the AMITIÉ cable system(starting 2km from shore).The AMITIÉ cable system spans nearly 6,600 km in total with the initial UK landing point in Widemouth Bay.

Alcatel Submarine Networks UK Ltd. (ASN) has been contracted to carry out construction activities of the AMITIÉ cable system (starting 2km from shore). The AMITIÉ cable system spans nearly 6,600 km in total with the initial UK landing point in Widemouth Bay, near Bude, Cornwall. The construction activities will commence 2km from shore (>15m water depth) and will utilise the cable lay vessel “Ile de Brehat” call sign: FOUC, which will commence construction operations from the nearshore area out to the UK exclusive economic zone (EEZ)). The third-party vessel ESVAGT DON WM Offshore, call sign: OUNO2 will complete the PLGR in the UK EEZ only starting on approximately 23rd July lasting approximately 2 weeks. Following this the Ile de Brehat will start by performing a pre-lay grapnel run (PLGR) in UK Territorial Seas prior to laying the cable beyond the UK continental shelf staring approximately on 8th August 2021, lasting approximately 8 weeks. The exact start and finish date will be dependent on the prevailing weather conditions and work progress. It is requested that all vessels operating within this area keep their distance, maintaining at least a 500 m exclusion zone, and pass at minimum speed to reduce vessel wash.  

 

The cable lay vessel, Ile de Brehat call sign: FOUC will be operating from approximately 2km from shore out to the UK EEZ laying and burying the Amitié cable, including pre-lay grapnel run (PLGR) in UK Territorial Seas. The vessel ESVAGT DON call sign: OUNO2 (WM Offshore) is also contracted to complete the PLGR works in the UK EEZ only. These operations will be conducted on an ongoing 24 hour basis. A listening watch will be maintained on VHF Channel 16, and the vessels will actively transmit an AIS signal. Please see contact details for the Ile de Brehat & ESVAGT DON 

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Survey - Regional Survey (Ref: 1198)

81 day regional survey between the 15th April 2021 - 31st Oct. Using vessels SW Amundsen call sign: 5BXE2, support vessels MV Scorpio call sign: ZDRF7 & Tess sign: YJUV8, Amazon Conqueror call sign: 3EBI3, Astra-G call sign: HP8210 & Mainport Pine V7ZH7.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Shearwater GeoServices AS

SW Amundsen

5BXE2

MV Scorpio

ZDRF7

Tess

YJUV8

Amazon Conqueror

3EBI3

Astra-G

HP8210

Mainport Pine

V7ZH7

 

8100m

18m

15/04/2021 - 31/10/2021

For 81 Days

210, 211

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Five Estuaries Offshore Wind Farm Project - Offshore Surveys

Five Estuaries Offshore Wind Farm Limited has contracted Fugro GB Marine Limited (Fugro) to carry out a geophysical and environmental site investigation in the North Sea for the proposed Five Estuaries Offshore Wind Farm (FEOW) site.

Fugro Mercator - Offshore Geophysical Survey

The geophysical operations at the Five Estuaries site are expected to be carried out from the Fugro Mercator from 5 th August 2021 for approximately 14 weeks.

 

Fugro Mercator will be conducting operations across the Main Array and Export Cable Route areas >10m LAT. Please note that the exact start and finish date will be dependent on the prevailing weather conditions and work progress.

 

As the Fugro Mercator will be towing survey equipment the vessel will require large turning circles and will be restricted in her ability to manoeuvre. All vessels operating within this area are requested to keep their distance, maintaining at least the 500m safety zone around the survey vessel, and pass at minimum speed to reduce vessel wash.

 

A continuous listening watch will be conducted on VHF Channel 16.

 

Survey operations will be conducted on a 24-hour basis.

 

Curtis Marshall - Environmental Survey

The environmental operations at the Five Estuaries site are expected to be carried out from the Curtis Marshall from 2 nd November 2021 for approximately 2 weeks. Curtis Marshall will be conducting operations across the Main Array and Export Cable Route areas both offshore and nearshore. Please note that the exact start and finish date will be dependent on the prevailing weather conditions and work progress. 

 

As the Curtis Marshall will be deploying equipment astern of the vessel, the vessel will require large turning circles and will be restricted in her ability to manoeuvre. All vessels operating within this area are requested to keep their distance, maintaining at least the 500m safety zone around the survey vessel, and pass at minimum speed to reduce vessel wash.

 

A continuous listening watch will be conducted on VHF Channel 16.

 

Survey operations will be conducted on a 24-hour basis.

 

Fugro Seeker - Nearshore Geophysical Investigation

 

The geophysical operations on the Five Estuaries export cable route from the 10m LAT contour inshore to the potential landfall, are expected to be carried out from the survey vessel Fugro Seeker from 1 st August 2021 for approximately 6-7 weeks. Please note that the exact start and finish date will be dependent on the prevailing weather conditions and work progress.

 

As the Fugro Seeker will be towing survey equipment the vessel will require large turning circles and will be restricted in her ability to manoeuvre. All vessels operating within this area are requested to keep their distance, maintaining at least the 500m safety zone around the survey vessel, and pass at minimum speed to reduce vessel wash.

 

A continuous listening watch will be conducted on VHF Channel 16.

 

Survey operations will be conducted on a 12-hour basis.

 

 

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New Suspended Wellhead - 42/28d - 16

Suspended wellhead structure on seabed.

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Bathymetry Survey Duncansby Head to Pentland Skerries

Commencing mid July 2021 and continuing for a period of approximately 4 months (weather depending) bathymetry survey operations will be undertaken off the coast of Scotland. Vessels ‘Cerys Line’ and 'Morven' will be used.

A-2-Sea Solutions Ltd will be operating the vessel ‘Cerys Line’ on a 24-hr basis. The ‘Cerys Line’ (26.1m LOA) will be underway throughout operations, sailing survey lines at 5-12 knots.

 

A-2-Sea Solutions will also be operating the vessel ‘Morven’ on a 24-hr basis to survey inshore of the 10m contours. The ‘Morven’ (20.0m LOA) will be underway throughout operations sailing survey lines at 4-8 knots. 

 

Both vessels will not be towing any equipment and only hull mounted mutlibeam echosounder will be used.

 

Both ‘Cerys Line’ and ‘Morven’ will exhibit the lights and shapes prescribed by the International Regulations for Preventing Collisions at Sea and will maintain a listening watch on VHF Channel 16.

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Tolmount Development Area

Notice to alert sea users to the ongoing drilling activity of the Valaris 123 Jackup Drilling Rig at the Tolmount Platform in Block 42/28d .

The Tolmount minimum facilities platform has been installed on behalf of the Tolmount Development Project (comprising Premier Oil UK Limited, ODE Asset Management Limited and Humber Gathering System Limited (HGSL)) in UKCS Block 42/28d and an ERRV remains on location in field. 

 

The Valaris123 Jackup Drilling Rig is in position over the Tolmount platform, with drilling operations underway.  Drilling activity is planned for approximately 12 months (subject to further Kingfisher bulletins).  The Valaris 123  suspended NE well on 13th July 2021 and skidded to the SW well on 14th July 2021 to re-enter the SW well and will drill to completion.

 

Please note that an Offshore Development Area has also been requested for the Tolmount Development Project work.

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Rigmove - Valaris 121

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending hundreds of metres outside this zone.

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Hazard - Confirmed UXO

A confirmed UXO target has been located on the Seagreen Offshore Windfarm construction site.

The target has a 500m exclusion zone in place with immediate effect.

The on site vessel the Glomar Worker will transmit a securite broadcast at 6 hour intervals giving full details of the hazard to all Vessels in the area.

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Potential Hazard - Lost CPT rods

Lost 4.25m of CPT rods made up of: 1 x 0.35m cone, 1 x 0.5m friction rod, 3 x 1m rods, 1 x 0.4m rod and approx. 3.85m communications lead (standard 4 core signal cable) potentially sticking up 1.15m above seabed.

During a CPT push at location EA1N-21-IAC-024-TCPT, the rods encountered a hard layer at 3.2m below the surface.

 

As communication was lost instantly at 3.1m when the rods started to be retracted, it is assumed the breakage occurred at that point and therefore the equipment was left at the 3.1m of the push. If this was the case then the top of the lost rods would be 1.15m above the seabed (in the worst case scenario).

 

Further investigation is planned to determine more accurately whether lost rods are above seabed level. The vessel will perform a side scan sonar survey and make use of a subsea camera at the location

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Decommissioning Project - Millar Platform

The Millar platform has been removed and all 500m zones revoked, all that is left on the seabed are 4 jacket footings which rise up to 22m from the seabed posing a significant snagging hazards.

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Rig - Valaris 120

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending hundreds of metres outside this zone.

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Rig - Valaris 92

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending hundreds of metres outside this zone.

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Dropped Concrete Anchor Block - Viking Link Interconnector Project

The object dropped was a concrete anchor block measuring approximately 1m x 1m x 1.2m with a deployment line / rope. Side Scan survey to be deployed, diver intervention to rig up and removal via support vessel as the final step.

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Havhingsten Cable Project - North Sea

Prior to rock placement there is a maximum of 50m of cable surface laid at each of the 4 crossings. It is advised that extra care is taken when vessels are operating near these areas and that no vessel should trawl within 250m from.

Please be advised that, installation of the Havhingsten fibre optic telecommunication cable system is complete outside of 12nm within the North Sea and at the Seaton Sluice landing. The Whitley Bay stub works are scheduled for March 2021.

 

The supplier of the Havhingsten cable is Alcatel Submarine Networks (ASN). Intertek are the environmental and permitting consultants.

 

The entire cable system will comprise marine elements that pass from Denmark to the UK (NE region); from the UK (NW) to the Republic of Ireland; with two segments being installed into landfalls on the Isle of Man. 

 

The cable route in the NE region is shown below. Landfall was made at Seaton Sluice.

 

Installation was via industry standard burial tools including water jetting and ploughing. Cable burial has been performed to a target of 2m.

 

The Havhingsten cable crosses 4 pipelines within the UK North Sea, which will require external rock protection. Post-rock installation is now expected in March 2021. The cable crossings start at approximately 72km offshore and beyond.

 

Prior to rock placement there is a maximum of 50m of cable surface laid with Uraduct protection at each of the 4 crossings. Coordinates of the crossings are provided in the table below. It is advised that extra care is taken when vessels are operating near these areas and that no vessel should trawl within 250m from the listed coordinates.

Crossing

Approximate distance offshore (km)

Latitude

Longitude

CATS

72

55°15.8028’ N

000°21.9318’ W

Norpipe

113

55° 19.1679’ N

000° 16.0266’ E

Sleipner to Easington

140

55° 22.3375’ N

000° 40.9323’ E

Shearwater to Bacton

198

55° 30.7194’ N

001° 34.1236’ E

 

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Cable Fault - BritNed HVDC Cable

The second cable repair is completed, but possible exposed cable remains a hazard. Consequently, the safety zone is still in operation.

Following 2 recent faults (caused by impact damage) in the same area and subsequent repairs to the BritNed HVDC Interconnector, the latest completed on 07/06/21, the repaired section although trenched, is still in the process of natural backfill and areas of exposure remain. A guard vessel (currently M/V FORTUNA) remains on site. 

 

We wish to remind ship’s captains of the presence of subsea cables and request that extra caution is exercised when operating near charted cables in order to avoid any incident. Due to changing seabed conditions it should not be assumed that all cables are buried.

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Seabed hazards following removal of Banff FPSO anchors & moorings

A series of deep, steep sided trenches at mooring line touchdown points and areas of disturbed seabed with clay boulders at the anchor locations, caused during recovery of the anchors. Moorings and anchors have been removed, leaving the seabed features.

10 mooring line trenches, varying in length from 70m to 180m; up to 8 metres wide and up to 9 metres deep. These trenches are steep-sided (in many cases vertical, cut into the clay seabed).

10 anchor scars, consisting of shallow trenches (20-90 metres long), shallow-sided depressions (less than 2 metres deep) but with areas of significantly disturbed seabed, including clay boulders up to 3 metres in size.

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Gwynt y Môr Cable Repairs

Briggs Marine Contractors (BMC) were contracted by Gwynt-Y-Mor OFTO to undertake a repair to the SSEC3 export cable due to a power core fault. The main works are completed. A small loop of cable remains unburied and raised above the seabed by approx. 2m

A north cardinal buoy is now in position 75m north of the cable loop on the following location and display a very quick flashing white light.

The marker buoy will remain in position until July 2022 when cable replacement works are planned to be completed by.

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Danger to Fishing - Claymore Scapa Template

Fishing activity has been observed within a 500m Safety zone at Claymore Scapa template.

Note fishing has been observed over subsea infrastructure including 40m L x 35m W x 11H Template structure that is within a 500m Safety zone.

 

The safety zone is to protect all parties and is a legally restricted area that can only be entered under Special Circumstances;

             1. To attempt to save a life or property,

             2. Owing to bad weather ,

             3. When in distress.

All vessels including fishing vessels must not fish within or transit over the 500m safety zone.

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Snagging Hazards - Decommissioned Murchison jacket footings - Fishing Advisory Zone

600m x 600m box covering the remaining jacket footings post-decommissioning. Area inside this region will NOT be verified by overtrawl survey.

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Well Guideposts - Schiehallion Loyal Field

The LW17 well within the Schiehallion Loyal field has been left with 4 Guideposts attached to the structure which extend approx. 7.5m above seabed. The well is within the Loyal 500m safety zone but the guideposts will pose a significant hazard to fishing.

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Fishing Hazard - Dons Fields Decommissioning Works

The Northern Producer FPF has been removed from it’s moorings and towed to port for decommissioning but the subsea assets within the Northern Producer FPF 500m zone will remain in place on the seabed and could pose a snag hazard to fishermen

The Northern Producer FPF has been removed from it’s moorings and towed to port for decommissioning but the subsea assets within the Northern Producer FPF 500m zone will remain in place on the seabed and could pose a snag hazard to fishermen therefore the Thistle Alpha Platform ERRV will act as a guard vessel until the 500m zone clearance is performed in 2022.

 

This includes the 8 No Risers draped over the Mid Water Arch (MWA), the MWA Clumpweight Guide Frame, the Riser Base Structure (RBS) and the surface laid pipelines / Umbilicals.  The MWA will remain in the water column at a depth of 112m and will remain tethered to the seabed via the clumpweight guide frame. The risers will remain draped over the MWA with one end on the seabed and the other end will remain connected to the RBS so that they remain stable. The existing stabilisation mattresses will remain in place over the surface laid pipelines/umbilicals.

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Dropped steel cage/basket (West of Shetland)

A steel cage has been dropped from a fishing vessel following snagging and partial recovery. The cage is metal in construction and appears to be from the oil & gas industry. Dimensions: 1.7m x 1.7m x 1.6m (height). Weight: 132kg (in water); 575kg (in air)

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NW Schooner Subsea Well - Missing Debris Cap

The Debris Cap for the NW Schooner subsea well has been identified as missing, leaving the wellhead more vulnerable to snagging on fishing nets. The Debris Cap is 4.5m x 3.9m x 1.4m and approx 3.5 tonnes, whilst the wellhead stands 6m off the seabed.

The approximate dimensions of the Debris Cap is 4.5m x 3.9m x 1.4m with a weight of approximately 3.5 tonnes. It is not known whether the Debris Cap is lying within a 500m zone of the well. A 200m x 200m area centred on the well has been searched, with no sight of it. Therefore the exact location of the Debris Cap is unknown. The loss of the Debris Cap leaves the NW Schooner wellhead more vulnerable to snagging from trawler/fishing nets. The approximate size of the tree with over trawl legs deployed is 7.8m x 7.8m x 6m high.

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Triton Knoll Offshore Wind Farm - Confirmed UXO Targets

Mariners are advised that two UXO targets have been confirmed within the Triton Knoll Offshore Wind Farm Array.

Please be advised that two UXO targets have been confirmed within the Triton Knoll Offshore Wind Farm Array.

 

Mariners are advised that the two confirmed targets are located within 20 metres water depth (LAT) and a 10 metre radius exclusion zone is required around each target.  The following table provides the coordinates and a description for each target.

 

Description of Target Latitude Longitude

Water Depth

(LAT) Metres

Required Exclusion

Zone (Metres Radius)

Archaeological - The item is thought to be an air-delivered bomb.  It appears to be in a stable condition and is resting on the seabed.  Marine growth and concretion cover the body, indicating it has been in situ for a significant duration. The tail section of the bomb is missing, which is typical of unexploded bombs from WWII found in these circumstances and there is a significant hole in the case. The dimensions and characteristics gathered are consistent with a 500kg German bomb. Considering the state of the bomb the Net Explosive Quantity of the bomb is likely to be <5kg. 53°31'50.249"N 00°47'45.908"E 20 10
Archaeological - The item is thought to be an air-delivered bomb.  It appears to be in a stable condition and is resting on the seabed.  Marine growth and concretion cover the body, indicating it has been in situ for a significant duration. The tail section of the bomb is missing, which is typical of unexploded bombs from WWII found in these circumstances and there is a significant hole in the case. The dimensions and characteristics gathered are consistent with a 500kg German bomb. Considering the state of the bomb the Net Explosive Quantity of the bomb is likely to be <5kg. 53°31'49.895"N 00°47'45.115"E 20 10

 

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Snagging hazard - Near Well 3/03-12

Unidentified snagging hazard at, or close to, the location of well 3/03-12.

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Suspended Wellhead : Affleck 30/19-1

Suspended wellhead structure on seabed.

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Boulders Deposited within the Brighton MCZ (UPDATE)

It has been reported that on the 23 and 25 February 2021, the Greenpeace vessel 'Esperanza' has deposited a number of boulders within the Brighton Offshore Marine Conservation Zone (MCZ). Estimated weigh ~3 tonnes each.

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Exposed Cables - Galloper Offshore Wind Farm

Update from most recent subsea survey. There is evidence of sections of cable exposure in ten areas over seven cable routes of the Galloper windfarm. Locations noted below

 

Area Start  Stop
D1J - E2J 51°48.489'N 002°02.339'E 51°48.489'N 002°02.341'E 
E3H - E4H 51°55.322'N 002°01.231'E 51°55.322'N 002°01.224'E
E4H - E5H 51°54.568'N 002°01.180'E 51°54.565'N 002°01.176'E
OSP - D3A 51°57.151'N 002°01.879'E 51°57.127'N 002°01.876'E
OSP - F3C 51°57.455'N 002°02.816'E 51°57.472'N 002°02.141'E
OSP - F3C 51°57.508'N 002°02.564'E 51°57.513'N 002°02.587'E
OSP - F4E 51°57.100'N 002°02.148'E 51°57.100'N 002°02.150'E
OSP - F4E 51°57.101'N 002°02.462'E 51°57.101'N 002°02.462'E
OSP - F6G 51°56.400'N 002°01.586'E 51°56.399'N 002°01.587'E
OSP - F6G 51°56.369'N 002°02.200'E 51°56.369'N 002°02.200'E

 

There is no cable exposure evident in the South Field of the windfarm.

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Pile Installation - Penguins Field

A number of items will be left installed/wet stored on the seabed around the Penguins Field. Pile Fast Frame (together with pile stick-up) 8 x piles (completed with multiple clay protrusions/blocks) 9 x chains (210m long, 177mm diameter).

Details of Seabed - West Cluster

Pile No Location Clay plugs at pile location
1 61°35.020'N    01°31.070'E  1.30m height x 2.5 dia.
2 61°34.990'N    01°31.070'E 2.00m height x 2.5 dia.
3 61°35.020'N    01°31.060'E 1.50m height x 2.5 dia.
4 61°35.050'N    01°31.070'E 1.50m height x 2.5 dia.

Note: 210m of 177mm dia. chain has been laid on seabed at each location towards the FPSO centre.

 

Details of Seabed - North East Cluster

Pile No Location Clay plugs at pile location
5 61°35.550'N    01°33.430'E 1.30m height x 2.5 dia.
6 61°35.540'N    01°33.470'E 2.00m height x 2.5 dia.
7 61°35.520'N    01°33.510'E 1.50m height x 2.5 dia.
8 61°35.510'N    01°33.550'E 1.50m height x 2.5 dia.

Note: 210m of 177mm dia. chain has been laid on seabed at each location towards the FPSO centre.

 

Details of Seabed - Southern Cluster

Pile No Location Comments
9 61°34.450'N    01°33.500'E

Fast frame is currently located at pile location 9 (11.85m x 11.70m x 30m

Note: 30m pile is installed in this fast frame

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Leadon Area – Possible Trawl Hazards

Six small structures (approx. 0.5m high x 1.5m long and 0.6m across) were located on the top of the disused Leadon Bundles in UKCS Block 9/14. These small structures are located at the points listed.

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Topsides and Jacket Removal - Brent Alpha Platform

Brent Alpha Platform (topsides and jacket) have been removed. The Jacket footings protrude 55.24m metres above the seabed. There is no longer a Safety Zone around the Brent Alpha remaining structure.

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Ninian North jacket

Top of Ninian North jacket 6m above sea level - no navaids or lights

The topsides has been removed from the Ninian North installation, leaving the jacket structure still in place. The top of the structure is approximately 6 metres above sea level. With the removal of the topsides, the remaining jacket structure is unlit and is not fitted with any navaids; cardinal buoys are located to the East & West.

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Dropped Anchor - Gwynt y Mor Offshore Wind Farm

The original anchor consisting of approximately 350kg of scrap chain at the previously as laid position:53°28.615 N 003°30.192 W could not be recovered and remains on the sea bed.

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Exposed Cable - Tampnet Fibre Optic Cable - Penguins (UK) - Snorre A (NOR)

Please be advised that the installation of the Tampnet fibre optic cable is still ongoing and that there is currently approximately 4.5km of EXPOSED CABLE on the seabed. We advise all seafarers and fishermen to keep clear of using any bottom equipment.

Please be advised that the installation of the Tampnet fibre optic cable is still ongoing and that there is currently approximately 4.5km of EXPOSED CABLE on the seabed as per attached drawing. We advise all seafarers and fishermen to keep clear of using any bottom equipment that might interact and damage the cable in vincinity of the route. We are also broadcasting and raising awareness from land and nearby guard vessels to all fishermen approaching the cable route. The installation is expected to be ongoing until mid September. 

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Exposed Pipelines - Scott Field

Pipelines in CNOOC’s Scott field have experienced upheaval bucking. As a result, in three locations, pipelines are now exposed and present a significant snagging hazard. Sea users are strongly advised to avoid these locations.

Detailed below, to avoid hazardous interaction with these sections of exposed pipeline, pending the execution of mitigation works.

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Dropped Object - Hornsea Two Offshore Wind Farm

Noise monitoring frame(steel 1m3 frame approx. 40kg), hydrophone,riser buoy,clumped(100kg chain clump weight) & 50m Dyneema riser line(dia.~25 mm)remain after the riser line was severed below the surface buoy.Surface marker buoy and pellet buoy recovered.

The riser line was severed below the surface buoy and it has not been possible to recover the items. Investigations as to the cause of the loss are ongoing.

 

Possible risk of entanglement from remaining riser line.

 

The SONAR imagery acquired during the recovery attempt indicated the riser line (the main aspect of concern) to be still attached to the anchor weight and suspended in the lower part of the water column. Given the elapsed time, the line will be fully saturated and neutrally buoyant and fully submerged. It is anticipated that the action of tidal currents on the line will cause it to knock down and eventually become entangled in the frame and other gear. Whilst it has not been confirmed, it is unlikely that the line would remain close to the surface.

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Dropped Boulders (~3 tonnes each)

In addition to the reported 15x boulder positions from 21 September, we have been informed of a further 19x boulders that have been dropped from the vessel 'Esperanza' in the Dogger Bank area. It is estimated these may be laying ~1m above the seabed.

These boulders have seemingly been deployed in groups at different times, with notification via the UKHO.

Type See detailed map on our bulletin website
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Pipeline Span - Dunbar to Alwyn: PL1043

Significant free-spans have been identified along the PL1043 Dunbar to Alwyn pipeline

Significant free-spans have been identified along the PL1043 Dunbar to Alwyn pipeline : Please exercise caution in these areas

Type See detailed map on our bulletin website
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Plugged and Abandoned Well : Sween

Sween UKCS 3/30 : Abandoned Wellhead (3/30-7)

No overtrawlability trial done yet, rough ground may be experienced.

Type See detailed map on our bulletin website
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MacCulloch Area – Location of Donan (Dumbaton/GP3) Gas Export Tie-In Skid

Post decommissioning of the MacCulloch FPSO / Field in UKCS Block 15/24, a Guard Vessel is no longer in position at the location of the Tie-In Skid at MacCulloch 

After the decommissioning of the MacCulloch FPSO / Field in UKCS Block 15/24, a Guard Vessel is no longer in position. 

 

The Donan (Dumbarton) Field, located in UKCS Block 15/20, has an out of use Gas Export pipeline (PL2324) which is still connected to a Tie-In Skid located within the previous MacCulloch subsea 500m zone. 

 

Please be aware that this subsea Tie-In Skid remains in place at this location.  The structure has been notified and recorded on the NDR / FishSafe websites since 2006/07, but has been previously monitored by the guard vessel.

 

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Plugged and Abandoned Well : Balvenie

Balvenie UKCS 3/14: Abandoned Wellhead (3/14d-18)

No overtrawlability trial done yet, rough ground may be experienced.

Type See detailed map on our bulletin website
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Plugged and Abandoned Well : Alwyn South

Alwyn South UKCS 3/9 : Abandoned Wellhead (3/9a-11)

No overtrawlability trial done yet, rough ground may be experienced.

Type See detailed map on our bulletin website
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Exposed and Shallow Buried Cable - Walney 1 Export Cable

The last High-Resolution Multibeam Echosounder and Side Scan Sonar of the Walney 1 & Walney 2 Export Cables have identified sections of the cable that are shallow buried and in some areas slightly exposed.Particularly the area of Morecambe Flats (KP 14.5)

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Survey - Gannet E04 rig site survey (Ref: 1268)

A 7 Day rig site and environmental survey at Gannet 04 rig site from 25th July 2021 until 30th September 2021 using vessel: Fugro Galaxy call sign: C6YY4

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB (North) Marine Limited

Fugro Galaxy

C6YY4

1300m

3m

30/06/2021 - 30/09/2021

For 5 Days

21

Type See detailed map on our bulletin website
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Survey - Schiehallion Foinaven Environmental (Ref: 1255)

A 5 Day Area Survey for Schiehallion Foinhaven from 30th June 2021 until 30th September 2021 using vessel: Ocean Geograph call sign: 3FXF3

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline

Ocean Geograph

3FXF3

 

30/06/2021 - 30/09/2021

For 5 Days

204

Type See detailed map on our bulletin website
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Survey - Evelyn to Triton Umbilical Route (Ref: 1267)

A 1 Day Evelyn to Triton Umbilical Route from 25th July 2021 until 30th November 2021 using vessels: Fugro Galaxy call sign: C6YY4

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB (North) Marine Limited

Fugro Galaxy

C6YY4

N/A

25/07/2021 - 30/11/2021

For 1 Day

21

Type See detailed map on our bulletin website
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Survey - Devils Hole - NP21DHH3DS (Ref: 1262)

A 70 Day Site Survey From 19th July 2021 until 31st October 2021 using vessels: Akademik Primakov call sign: UBCQ4

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

TGS Geophysical Company (UK) Limited

Akademik Primakov

UBCQ4

7200m

19/07/2021 - 31/10/2021

For 70 Days

19,20,21,26,27,28

Type See detailed map on our bulletin website
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Survey - South of Loch an Tomain

The Scottish Salmon Company (SSC) will be carrying out a Hydrographic survey along the coast south of Loch an Tomain. The proposed works are planned to start on 17th June 2021 and will last approx. 100 days Using vessel MV Gille na Mara call sign:MEEO6.

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Survey - CATS pipeline nearshore survey (Ref: 1258)

A 3 Day CATS pipeline nearshore Survey From 1st July 2021 until 30th September 2021 using vessel Humber Guardian call sign: 2ENC3

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

UTEC

Humber Guardian

2ENC3

N/A

01/07/2021 - 30/09/2021

For 3 Days

40

Type See detailed map on our bulletin website
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New Safety Zone: Evelyn Wellhead, Evelyn, Block 21/30

A new safety zone has been granted by the Secretary of State for the above location/structure. For installations already on location the safety zone will come into force on 28th June 2021.

This safety zone may be new, or an amendment to an existing zone. It may also replace a safety zone in place around a platform, or other surface structure for the purposes of decommissioning.

 

Your FishSAFE Information will be updated in the next release.

Type See detailed map on our bulletin website
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New Safety Zone: Everest 22/10a-LAD, Block 22/10a

A new safety zone has been granted by the Secretary of State for the above location/structure. For installations already on location the safety zone will come into force on 28th June 2021.

This safety zone may be new, or an amendment to an existing zone. It may also replace a safety zone in place around a platform, or other surface structure for the purposes of decommissioning.

 

Your FishSAFE Information will be updated in the next release.

Type See detailed map on our bulletin website
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Rig - Valaris Gorilla V

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Maersk Resolute

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Survey - Talbot Appraisal Well (Ref: 1233)

A 1 Day Talbot Appraisal Well Survey From 1st July 2021 until 31st December 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Chrysaor Petroleum Company UK Ltd

N/A

5m

01/07/2021 - 31/0912/2021

For 1 Day

30

Type See detailed map on our bulletin website
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Survey - NEP Pipeline Routing and Endurance Store (Ref: 1252)

A 70 Day route survey NEP Pipeline Routing and Endurance Store . From 24th June 2021 until 24th September 2021. Using the vessel Ocean Geograph Call sign: 3FXF3

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline

Ocean Geograph

3FXF3

 

24/06/2021 - 24/09/2021

For 70 Days

42,43,40,41,47

Type See detailed map on our bulletin website
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Survey - Garten Debris Survey (Ref: 1254)

A 1 Day Garten Debris survey. From 14th June 2021 until 30th September 2021. Using the vessel Fugro Galaxy Call sign: C6YY4

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB (North) Marine Ltd

Fugro Galaxy

C6YY4

 

14/06/2021 - 30/09/2021

For 1 Day

9

Type See detailed map on our bulletin website
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Drilling - Blythe 48/23a-H1

Petrofac Facilities Management Ltd (PFML) propose to drill and complete a production well at the Blythe well location, commencing from 14th June 2021 for 79 days. The operation is however permitted for between the 14th June 2021 till 31st October 2021.

The drilling operation will be carried out by Noble Hans Deul drilling rig.   

Type See detailed map on our bulletin website
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Array Cable Installation - Hornsea Project Two

Ørsted have commenced array cable installation with the Seaway Aimery and Seaway Moxie which will continue through to Q3 2021. The Simar Esperanca will commence trenching on or around 30th May 2021.

Array Cable Seabed  Installation

Ørsted will be commencing pre-lay surveys and seabed preparation for array cable installation with the Simar Esperanca and rock deployment with the Flintstone on or around 21st March 2021, shortly followed by array cable installation itself on or around 15th April 2021. In addition to this, Seaway Offshore Cables (SOC) and Sulmara may be trialling an autonomous survey vessel within the Hornsea Project Two array area which will be supported by a dedicated support vessel, queries related to this scope should be directed to SOC / Sulmara.

 

Works will be continual and intermittent throughout this period. The works will be undertaken by a number of vessels at different times according to the Project schedule. This Notice will be updated and re-issued when works are complete.

 

Note that the vessels will have limited manoeuvrability and it is requested that all vessels operating near the vessels maintain a safe distance (at least 500m) and pass all vessels at minimum speed.

 

Please be advised that construction activities are ongoing within the wind farm, supported by Crew Transfer Vessels (CTVs) and survey vessels intermittently. The Deep Cygnus will be mobilising to site as a support vessel to the ongoing construction works on or around 28th May 2021. The MHO Grimsby continues to carry out construction geophysical surveys intermittently utilising a hull-mounted system within the proposed Hornsea Project Two Offshore Wind Farm site and the Wind Innovation remains on the project for construction support.

It is requested that all vessels operating near the construction area keep a safe distance and pass at minimum speed.

 

 

Type See detailed map on our bulletin website
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Survey - Pipeline Salvage Operations PL24(Ref: 1211)

A 55 Day Pipeline Salvage Operations PL24 between 28th May - 30th September 2021. Using vessel Olympic Delta call sign: JWOH3.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Perenco UK Limited

Olympic Delta

JWOH3

2m

5m

28/05/2021 - 30/09/2021

For 55 Days

53

Type See detailed map on our bulletin website
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Survey - PL23 pipeline survey (Ref: 1249)

A 40 Day pipeline survey PL23 from 10th June 2021 until 30th September 2021. Using the vessel Olympic Delta Call sign: JWOH3.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Reach Subsea

Olympic Delta

JWOH3

 

10/06/2021 - 30/09/2021

For 40 Days

48

Type See detailed map on our bulletin website
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Survey - PL22 pipeline survey (Ref: 1248)

A 40 Day pipeline survey PL22 from 10th June 2021 until 30th September 2021. Using the vessel Olympic Delta Call sign: JWOH3.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Reach Subsea

Olympic Delta

JWOH3

 

10/06/2021 - 30/09/2021

For 40 Days

49

Type See detailed map on our bulletin website
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Survey - PL106 ROV pipeline survey (Ref: 1250)

A 40 Day ROV pipeline survey PL106 from 10th June 2021 until 30th September 2021. Using the vessel Olympic Delta Call sign: JWOH3.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Reach Subsea

Olympic Delta

JWOH3

 

10/06/2021 - 30/09/2021

For 40 Days

49

Type See detailed map on our bulletin website
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Survey - PL24 pipeline survey 2021 (Ref: 1247)

A 40 Day pipeline survey PL24 2021 from 10th June 2021 until 30th September 2021. Using the vessel Olympic Delta Call sign: JWOH3.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Reach Subsea

Olympic Delta

JWOH3

 

10/06/2021 - 30/09/2021

For 40 Days

53

Type See detailed map on our bulletin website
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Survey - Central North Sea (Ref: 1241)

A 135 Day site survey Central North Sea 15th June - 31st October 2021. Using vessel Akademik Primakov call sign: UBCQ4.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

GX Technology Eame Limited

Akademik Primakov

UBCQ4

Support Vessel 1&2 TBC

7000m

10m

15/06/2021 - 31/10/2021

For 135 Days

20,21,27,28

Type See detailed map on our bulletin website
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Decommissioning - Buchan & Hannay Subsea Removals Project 9b

Subsea removal activity as per the Buchan & Hannay decommissioning programme - Q2/Q3 2021.

Please be advised that Repsol Sinopec Resources UK Limited (RSRUK) intend to carry out subsea removal & remediation works in the Buchan & Hannay fields during Q2/Q3 this year, commencing on the 1st June 2021.

 

The intention is to execute this works over two campaigns: •    Campaign 1 – mobilising 1st June for approximately 20 days  •    Campaign 2 – mobilising 10th August for 40 days

 

Summary of the Offshore Scope, in accordance with the approved decommissioning programme is: •    Rigid pipelines removal (13.5km); •    Flexible Pipelines / Umbilical removal (15.6km); •    Subsea structures removal (215Te); •    Rigid tie-in spool-pieces removal (67Te); •    Flexible jumpers/umbilical jumpers removal (0.47km); •    Deposits removal (866Te); •    Debris removal (five grid zones); •    Rigid pipelines & Umbilical Ends remediation (1.45km of remediation).

 

This infrastructure is contained with the Buchan & Hannay fields, with a large proportion of the works being focused around the Buchan template 500m subsea safety zone.  The coordinates for the area are:   A small part of the works (2-3 days) will take place the Forties Charlie end of the Buchan export pipeline, within the Forties Charlie 500m zone.

The work will be carried out using Construction Support Vessel’s (CSV), support by WROV.  

 

Pipeline Works Authorisation variation and supporting permits are currently in the approval process.  

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London Array OWF - Diving Operations

All mariners are advised that the Dive Support Vessels (DSV) ”MV C-Fenna” call sign: MBAH3 and ”MV C-Force” call sign: MITT4 will be onsite from 1/05/2021 for approximately 6 months to carry out diving operations.

These vessels will be supported by the” Spectrum 1” call sign: 2CQX3 and” Dalby Tees” call sign: 2FIA7 carrying out crew transfer operations. Works are to take place at various locations across the London Array windfarm As part of this work, Dynamic Bend Stiffeners will be installed using, subsea installation tools and divers within the London Array Wind Farm. Vessel: C-Fenna C-Fenna Dive Support Vessel (DSV) has a length of 26.5m and breadth of 11.0m. The C-Fenna uses a four-point mooring system. The C-Fenna will undertake mooring deployment within 150m of the assigned WTG. Equipment will be periodically deployed and suspended from the vessel crane during the work.

 

Planned Diving Locations and Restricted Access Zones:

The works is expected to commence on the 1st of May 2021 and continue for approximately 6 months. During this period diving locations will be selected from the list of locations as detailed in Figure 1. A total of three locations could be operational at any one time. Information about what location is presently being worked will be transmitted over VHF informing all local vessels of restrictions.

 

Prior to commencing diving operations 4 chain clump weights mooring will be deployed at the required WTG location. These moorings will be positioned as required to avoid known obstruction and expected current flows but will be within 150m radius of the WTG. Once deployed a 150m exclusion zone will be placed around the WTG. The Mooring will consist of two 12t chain cluster weights connected to a surface buoy. A yellow light flashing yellow once every 5 seconds.

 

 

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Glengorm Central Appraisal Well

The Borr Prospector 5 Heavy Duty Jack Up Rig will be positioned at the Glengorm Central appraisal well location 22/21c-C.

The Works shall comprise the location of the following mobile installation:

 

The mobile drilling unit (MoDU) - PR5 (Prospector 5)

 

The Works shall be located at:

57 10' 05.97"N 01 05' 27.27"E

 

Quad/Block - 22/21c

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ADCP deployments on the seabed - Skye and Outer Hebrides

Deployment of two scientific Acoustic Doppler Current Profilers on the sea bed for 6-12 months – no surface markers.

We will be deploying two scientific Acoustic Doppler Current Profilers on the sea bed for 6-12 months from May 2021 to collect currents data for environmental monitoring and hydrodynamic model validation.  The instruments have no surface markers and will be recovered using acoustic releases.  One of the instruments will be inside a low profile trawl-resistant frame (Little Minch, west of Skye) and one inside a steel frame (Loch Erisort).  See attachment for photos of the frames, a chart with their position and their positional details.

Type See detailed map on our bulletin website
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Survey - Culzean Wells Site Survey(Ref: 1204)

A 14 Day Site Survey at the Culzean Wells between 1st May - 31st October 2021.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Total E&P North Sea UK Limited

N/A

2m

5m

01/05/2021 - 31/10/2021

For 10 Days

22

Type See detailed map on our bulletin website
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Survey - Debris Survey Buckland Drilling location (Ref: 1221)

A 2 Day Debris Survey Buckland Drilling location between the 4th May 2021 - 31st October. Using the vessel Fugro Galaxy Call sign: C6YY4.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB (North) Marine Ltd

Fugro Galaxy

C6YY4

N/A

04/05/2021 - 31/10/2021

For 2 Days

9

Type See detailed map on our bulletin website
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Deployment of 2 x Metocean Buoys - North of Cromer

Partrac is to deploy two large metocean buoys (E03 and E13) at two separate locations approximately 18 miles northwest of Cromer and 28 miles north of Cromer in the southern North Sea 

Partrac is to deploy two large metocean buoys (E03 and E13) at two separate locations approximately 18 miles northwest of Cromer and 28 miles north of Cromer in the southern North Sea 

 

Once deployed, please maintain a 500m exclusion around each buoy.

 

Deployment is estimated to be carried out over one day from the 5th May 2021, weather permitting.

 

The deployments will be completed by the vessel Isle of Jura.

 

The surface buoys will include: AIS; A day shape of yellow St Andrews Cross; radar reflector; and yellow navigation light.

 

The metocean buoys record meteorological data and are anchored to the seabed by means of a mooring chain and a ground weight. The buoy has dimensions of 4m x 4m, and when deployed the tallest mast on the buoy sits approx. 4m above the water line  

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Subsea Construction Activities at the Yme field

On behalf Repsol Norge AS DeepOcean will perform subsea construction activities consisting of a new drilling template near the Yme Beta East, 11 km from the Mærsk Inspirer at the Yme Field. From the period of 10.05.2021 until 01.10.2021

The subsea service company DeepOcean will perform a series of campaigns to prepare, install, commission and protect a new subsea drilling template on the Yme field development. The subsea activities will result in these subsea assets being temporarily exposed with a reduced level of overtrawlability. Trawling within a Caution area of radius 300m around 57°45' 21.669"N 004°22' 04.416"E(WGS 84) may potentially lead to injury, loss of trawling/ fishing equipment, and/or damage to DeepOcean and/or Repsol Norge AS assets.

 

The location will be marked by a virtual AIS buoy, monitored by the Equinor Marin radar surveillance, and by the Guard vessel Esvagt Corona during this period. Equinor Marin, the Esvagt Corona and Yme Platform Mærsk Inspirer will attempt to contact fishing vessels approaching the aforementioned location.

Type See detailed map on our bulletin website
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Rig - Noble Sam Turner

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Survey - Seabed Debris Garten Drilling Location (Ref: 1152)

A 1 day Seabed debris survey covering the anchor pattern of a semi-submersible rig at the Garten drilling location. Using the vessel Fugro Galaxy Call sign: C6YY4

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB (North) Marine Ltd

Fugro Galaxy

C6YY4

N/A

07/11/2020 - 30/09/2021

For 1 Day

9/13,14,18

Type See detailed map on our bulletin website
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Rig - Transocean Equinox

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Safe Caledonia at Elgin PUQ

The Flotel Safe Caledonia is alongside ELGIN PUQ – within 500m zone.

The Flotel Safe Caledonia is alongside ELGIN PUQ – within 500m zone. Providing additional accommodation for ongoing fabric maintenance campaign.

Type See detailed map on our bulletin website
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Rig Movement - Safe Caledonia

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending hundreds of metres outside this zone.

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Rig - COSL Innovator

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Survey - East Orkney Site Survey (Ref: 1206)

A 6 Day East Orkney Site Survey between the 9th April 2021 - 30th September. Using the vessel Geo Ocean III Call sign: LXGP.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

GEOxyz UK

Geo Ocean III

LXGP

150m

3m

09/04/2021 - 30/09/2021

For 6 Days

6,7,12,13,14

Type See detailed map on our bulletin website
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Pipeline Flushing and Riser Decommissioning - Balmoral Area

Premier Oil’s project to flush & disconnect the Greater Balmoral Area subsea infrastructure and removal of associated risers in relation to the float-off of the Balmoral FPV will be undertaken between 28th February and 31st December 2021.

Locations Coordinates
Balmoral FPV & Template

58°13.727'N 001°06.427'E

Tap Valve No.3 (Forties Pipeline System) 58°06.622'N 001°09.449'E
Balmoral Satellite Well B29 58°15.127'N 001°03.323'E
Balmoral Satellite Well A2 58°13.970'N 001°07.953'E
Brenda Drill Centre 58°11.763'N 000°58.407'E
Brenda Umbilical cut point 58°13.810'N 001°06.318'E
Nicol Drill Centre 58°14.908'N 000°50.812'E
Stirling 20z Well 58°14.010'N 001°08.063'E
Glamis A26 Well 58°10.695'N 001°01.045'E
Glamis A27 Well

58°10.308'N 001°04.168'E

Burghley WH1 Well 58°16.052'N 001°14.148'E
Beauly Well 58°11.028'N 001°07.632'E

 

Type See detailed map on our bulletin website
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Rig - Maersk Intrepid

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Rowan Stavanger

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Ensco 120

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - 590021

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Transocean Spitsbergen

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Valaris Gorilla VI

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Rowan Viking

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig Move - Maersk Inspirer

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Valaris 123

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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