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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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Brae Bravo Decommissioninig



Decommissioning and removal of the Brae Bravo Platform will be undertaken throughout 2021. Removal of topside modules and flare bridge will be undertaken ahead of removal of the main jacket in 2022.


Decommissioning and removal of the Brae Bravo Platform will be undetaken throughout 2021. Removal of topside modules and flare bridge will be undertaken ahead of removal of the main jacket in 2022.

 

Vessels will be operating near to and within the 500m safety zone as indicated.

 

Thialf

The Thialf will be alsongside the Brae Bravo platform between the 15th of April 2021 and the 24th of May 2021.

 

Bylgia

The Bylgia will enter the worksite between the 1st of May 2021 and 3rd of may 2021.

 

Sleipnir

The Sleipnir will be alsongside the Brae Bravo platform between the 15th of April 2021 and the 24th of May 2021. The Sleipnir will then return to the field to continue removal works circa 15th July2021.

 

See detailed map on our bulletin website

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Seismic 2D Survey - RDI21 - MCG21001 (April to mid-May operations)



GeoexMCG will be acquiring the 'Regional Deep Imaging Project 2021' (RDI21) between April 15th and September 30th, 2021. The survey is a cross border 2D seismic survey in Norway, UK, Faroe Islands and Denmark.


The aim of the survey is to image deep seated crustal structures in the North Sea and a single source of 6,270 cu.in and one cable of 12 km length towed at 15-30m depth (slant) will be used. The survey will be carried out by the seismic vessel M/V Akademik Lazarev (UAJS) and Jan van Gent (YJVF4) will be the support vessel.

 

There will be two FLOs onboard, one Norwegian from Geograf Maritime and one from SFF Service Limited (Scottish Fishermen's Federation). In addition, the vessel will have MMO and PAM operators onboard.

 

Since RDI21 is a very regional survey, there will be some flexibility in deviating from the preplotted survey lines, if needed.  

 

The survey has been divided into several notices where each notice contains the lines that are planned to be acquired within the time frame specified in the heading. The .png map shows the full RDI21 2D survey outline.

See detailed map on our bulletin website

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Buzzard Field - Pipeline bundle tow and installation



A pipeline bundle will be launched, towed to and installed in the Buzzard field.


A pipeline bundle will be transported using the Off Bottom Tow Mode (OBTM) and Controlled Depth Tow Method (CDTM). The bundle will be launched from Sinclair's Bay North of Wick and towed to the installation area suspended between one or more lead tugs and a trail tug and accompanied by a guard vessel and ROV support vessel.

See detailed map on our bulletin website

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Survey - Glengorm South Appraisal Well VSP (Ref: 1134)



A 2 day Geological Glengorm South Appraisal Well VSP from the drilling Rig from 16th April 2021.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

CNOOC Petroleum Europe Limited

N/A

2m

5m

16/04/2020

For 2 Days

22

See detailed map on our bulletin website

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Power Cable Replacement Operations - Forties Field



Power Cable Replacement Operations between Forties Alpha Satellite Platform to Forties Echo Platform (MV Normand Cutter) mob date 19th April 2021


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Penguins Field - Vessel Activity



Penguins Field Development - Bundle XT Tie-ins and DC2 Bundle XT Tie-ins


Seven Atlantic DSV – FPSO Bundle XT Tie-Ins (Subsea 7) Penguins Redevelopment Project - Infield 20/03/21 – Depart Field 03/04/21

Greenfield tie-in work within the Penguins field, connecting the 3 new DC7 flowbases to the newly installed FPSO bundle.  The scope will include barrier testing, spool deployment and installation, TSCJ installation and subsequent mattress and grout bag protection works.

 

 

Seven Oceanic RSV – Wet Store Spools Ph1 (Subsea 7) Penguins Redevelopment Project - Infield 10/04/21 – Depart Field 20/04/21

Main scope will include the wet storing of new tie-in spools within the Penguins Field and also the Brent C 500m zone.  Additional activities will include the installation of concrete corner blocks adjacent to the newly installed towheads and the recovery of buoyancy tanks from the newly installed bundle systems.

 

Seven Atlantic DSV – DC2 Bundle XT Tie-Ins (Subsea 7) Penguins Redevelopment Project - Infield 05/05/21 – Depart Field 19/04/21

Greenfield tie-in work within the Penguins field, connecting the PAN-N and Tybalt flowbases to the newly installed DC2 bundle.  The scope will include barrier testing, spool deployment and installation, TSCJ installation and subsequent mattress and grout bag protection works.

 

See detailed map on our bulletin website

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Rig Move - Maersk Resolve



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 4



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


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Boyla 4D towed streamer survey (ABP21001)



Aker BP ASA is conducting a 4D towed streamer acquisition with PGS Geophysical AS. The vessels on the field will be Ramform Vanguard and Sanco Chaser. This is a cross border seismic survey, with the main part of the survey on the Norwegian side.


AkerBP ASA is conducting a 4D seismic survey over the Boyla field. It is anticipated that the UK section will take a maximum of four days to complete. The Survey Area at Boyla will cover 37 square kilometres in UK waters. The Greater Work Area will cover 151 square kilometres in UK water. The Company will conduct line changes in the greater work area.

See detailed map on our bulletin website

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Rig Move – Ensco 92 to Victor Field



Chrysaor plan to move the Ensco 92 Jack-up drilling rig from the Viking field location to the Victor field location perform abandonment operations on the Victor JM 49/17-11 development well.


Destination: Victor JM 49/17-11 development well 53° 21' 03.22" N 2° 17' 43.46" E Throughout well abandonment operations there will be a dedicated ERRV on location monitoring the surrounding sea area

See detailed map on our bulletin website

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Snagging Hazard - Dropped Object Weight 115kg



Wireless telemetry basket containing measuring 1.4 m x 1.4 m and weighs 115 kg when submerged.


As part of the initial drilling operations in 2019, the wellhead assembly was fitted with a cap containing a transponder for the relaying of monitoring data from downhole gauges and a basket was placed on the seabed adjacent to the well containing associated wireless telemetry equipment. 

 

It has now been observed that both the cap and the basket are no longer present. 

 

PFML are on location conducting an ROV based visual inspection of the suspended Well 205/26b-14 in the Lincoln field west of Shetland.  The Olympic Taurus arrived at the well location and deployed the ROV for inspection at the seabed.  On inspection neither the cap or basket were present.

 

No instances of snagged fishing gear or other debris have been identified on the wellhead. 

 

The risk is that trawled gear may snag on the basket and cause damage.  It is expected that he basket is too light to trap the vessel and cause any significant threat.  The cap is smaller, so there is a risk the nets may lift the cap to surface and cause a risk to personnel on the vessel.  However, as the cap is now off the wellhead, it is likely to be sitting flush with the seabed and is unlikely to be picked up by gear working in this area, as it is typically designed to bounce over the top of seabed obstacles (like the many boulders in the area). 

 

 

The vessel and ROV has conducted a search around the well, 250 m x 250 m grid with 20m line spacing, and not identified the objects.

 

PFML intend to go back to abandon the well this year, which would include an as left survey, so further efforts will be made then to locate and recover.  If not found, no other action will be taken.

See detailed map on our bulletin website

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Rig Movement - Seajacks Leviathan



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 Movement - Deepsea Nordkapp



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 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 Movement - Seafox 2



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 Movement - 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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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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Rig - Ensco 92



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


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Thames Pipeline PL370 - Inspection



During April and May 2021 Titan Environmental, on behalf of IOG, will be performing a survey along the Thames pipeline to determine burial.


The work will consist of using the vessel Titan Discovery, equipped with vessel mounted and towed sensors to scan the seabed, over and on either side of the pipeline, with no intrusive works.

See detailed map on our bulletin website

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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 for up to 190 days. The Safe Boreas will be linked to Buzzard QU Platform via a gangway interface.

See detailed map on our bulletin website

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Subsea installations in Buzzard Field



The Seven Falcon DSV is scheduled to mobilise 3rd April to carry out subsea installations in the Buzzard Field


The Seven Falcon DSV is scheduled to mobilise 3rd April to install the umbilical’s and complete the installation of the water injection tie in spool to the Central Water Injection flowline in the Buzzaard Field. Mobilisation activities and transit to field are estimated to take 1.5 days, post DP trials umbilical installation should commence 5th April. 

See detailed map on our bulletin website

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Site and Pipeline Survey - Southwark Field (Ref: 1209)



Independent Oil and Gas (IOG) is developing the Southwark Field, involving the installation of a platform and pipeline connection to the Thames pipeline. This notice advises of survey activities being performed in advance of the installation.


During March & April 2021 Titan Environmental, on behalf of IOG, will be performing surveys, primarily located at the platform location, with additional surveys along the pipeline route to the south:

  1. a pre-installation debris and bathymetric survey for the platform will cover an area approximately 700-metres x 700-metres, centred at the proposed Southwark location, as listed below, 
  2. a pre-installation debris and bathymetric survey of the proposed 24-inch pipeline between the proposed Southwark platform location and the Thames pipeline.

The work will consist of using vessel mounted and towed sensors to scan the seabed, with no intrusive works.

See detailed map on our bulletin website

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Survey - Catcher Area (Ref: 1203)



A 42 Day Catcher Area Survey between the 17th April 2021 - 29th May 2021. Using the vessels PGS Ramform Hyperion call sign: C6DB4, Thor Omega call sign: OZ2065, Groen Miranda call sign: 6CR7


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Petroleum Geo-Services

PGS Ramform Hyperion

C6DB4

Thor Omega

OZ2065

Groen Miranda

6CR7

6650m

5m

17/04/2021 - 29/05/2021

For 42 Days

28

See detailed map on our bulletin website

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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

See detailed map on our bulletin website

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Survey - Leman Pipelines (Ref: 1208)



A 5 Day Leman Pipelines Survey between the 15th April 2021 - 31st May. Using the vessel MV Ocean Reliance Call sign: HP6391.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline Limited

Ocean Reliance

HP6391

N/A

15/04/2021 - 31/05/2021

For 5 Days

49

See detailed map on our bulletin website

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Rig - West Hercules



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


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Rig - Haeva



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


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Rig - Safe Zephyrus



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


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Elgood to Blythe & Blythe to Thames, Pipeline and Umbilical Surveys



This NtM relates to surveys being performed over the existing pipelines between the Elgood and Blythe Fields and the connection with the Thames Pipeline, in the UK sector of the southern North Sea.


During March & April 2021 Titan Environmental, on behalf of IOG, will be performing surveys, primarily located within the +/-100 metre pipeline fishing exclusion/safety zones at the following locations:

  1. A pre-installation survey for an umbilical, which will be laid immediately adjacent to the 6-inch pipeline between Elgood and Blythe, 
  2. A survey of the existing 6-inch pipeline between Elgood and Blythe,
  3. A survey at the Blythe platform site, partly covered by the pipeline exclusion/safety zones,
  4. A survey of a site connecting the 12-inch Blythe pipeline to the 24-inch Thames pipeline connection site.

The work will consist of using vessel mounted and towed sensors to scan the seabed, with no intrusive sensors.

 

See detailed map on our bulletin website

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Rig Move – Ensco 92 to Viking Field



Chrysaor plan to move the Ensco 92 Jack-up drilling rig from the Vulcan field location to the Viking field location to perform abandonment operations on the Alexandra exploration well 49/11a-6.


Destination:

 

Alexandra exploration well 49/11a-6.

53° 32' 23.30" N

2° 11' 46.04" E

 

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

See detailed map on our bulletin website

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Rosebank Field Metocean Monitoring Buoys



4 x metocean monitoring buoys in the Rosebank Field area 1 x surface wave buoy 3 x subsurface buoys at 40m, 160m, and 630m


4 x Metocean monitoring buoys will be in place at the Rosebank Field until approximately Q4 2021.

3 of these buoys are subsurface with only the wave monitoring buoy on the surface.  

 

The wave buoy is painted yellow, equipped with solar panels, flashlight, active and passive radar reflectors. The active radar reflector responds to interrogating X-band radar (9.3-9.5 GHz)

See detailed map on our bulletin website

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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). NW well is now completed and the Valaris 123 has skidded to the SE well slot to recommence drilling operations.

 

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

 

The Boskalis BOKA Polaris Diving Support Vessel is scheduled to mobilise from Nigg, on the 22nd March 2021 for circa. 2 weeks diving operations at the Tolmount Platform.

See detailed map on our bulletin website

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West of Shetland – Power Reinstatement Project - Stage 1



The Far Superior (Call Sign: LATJ7) will be carrying out Rock Dump Removal / Dredging activities BETWEEN the various locations noted below :


The Far Superior (Call Sign: LATJ7) will be carrying out Rock Dump Removal / Dredging activities BETWEEN  the various locations noted below :

 

Start date = 3rd April 2021

 

Duration expected to be approx. 14 Days

See detailed map on our bulletin website

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Survey - Viking & LOGGS (Ref: 1187)



A 18 Day Survey Viking & LOGGS Fields between the 3rd March 2021 - 30th April. Using the vessel Edda Sun Call sign: LARF7.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro

Edda Sun

LARF7

N/A

03/03/2021 - 30/04/2021

For 18 Days

49

See detailed map on our bulletin website

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Planned Plug & Abandoned Operations - Alexandra 49/11A-6



The Valaris Rig 92 shall be utilised by Chrysaor Production (UK) Ltd to Plug and Abandon the Alexandra well, anticipated schedule is to position the rig at the location from ~16th March 2021 until the end of April 2021.


All vessels fishing within the area are requested to maintain a wide berth and acknowledge the 500m/z protocols following establishment of the rig at the location.  Between the above dates it is requested that an area bounded by the below coordinates is avoided:

See detailed map on our bulletin website

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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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Pipeline Span - Freespan on pipeline PL22



Freespan Remediated by concrete mattresses


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Survey - Brodgar Infill 2021 (Ref: 1200)



A 3 Day Survey Brodgar Infill between the 15th April 2021 - 31st May. Using the vessels SW Amundsen Call sign: 5BXE2, MV Scorpio call Sign: ZDRF7 & Tess Call sign: YJUV8


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Shearwater GeoServices AS

SW Amundsen

5BXE2

MV Scorpio

ZDRF7

Tess

YJUV8

8000m

15m

15/04/2021 - 31/05/2021

For 3 Days

21

See detailed map on our bulletin website

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Survey - Regional Survey (Ref: 1198)



A 81 Days Regional Survey between the 15th April 2021 - 30th September. Using the vessels SW Amundsen Call sign: 5BXE2, Support Vessel MV Scorpio call Sign: ZDRF7 & Astra-G sign: HP8120


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Shearwater GeoServices AS

SW Amundsen

5BXE2

MV Scorpio

ZDRF7

Astra-G

HP8120

8100m

8m

15/04/2021 - 30/09/2021

For 81 Days

210, 211

See detailed map on our bulletin website

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Survey - Amethyst C1D Noise Monitoring Survey



Perenco UK Limited plan to use explosive charges placed underground to perforate the well castings.


Subacoustech Environmental Ltd will monitor the underwater noise emissions resulting from these to generate a mathematic model of noise propagation (UKCS 47/14) utilising the Boston Putford Phoenix.

See detailed map on our bulletin website

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Decommissioning Activities – Hydrocarbon Free Activities on the Amethyst A1D Installation



Planned Hydrocarbon Free works are due to commence on the Amethyst A1D platform (UKCS 47/14).


The HAEVA Mobile Offshore Decommissioning Unit (Modu) will depart from Vlissingen in the Netherlands 3rd March 2021 (dependent on weather) and transit to the Amethyst field, where it will commence Hydrocarbon Free operations.

See detailed map on our bulletin website

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Survey - Geological (Ref: 1201)



A 4 Day survey between the 29th March 2021 - 30th April.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline

TBC

3750m

4m

29/03/2021 - 30/04/2021

For 4 Days

8

See detailed map on our bulletin website

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Isabella Project - Site Survey



The Ocean Resolution (Call Sign: 3EIP9) will be carrying out a Site Survey within the area noted below:


Survey is expected to start on 16th March and take 2 to 3 weeks to complete.

Vessel will be towing 1.3km streamer.

See detailed map on our bulletin website

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Survey - Alvhelm Prospect (Ref: 1193)



A 6 Day Site Survey at the Boyla Prospect between the 01st April 2021 - 31st August. Using the vessels Ramform Vanguard Call sign: C6TU8 & Sanco Chaser Call sign: ZDHH3.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

PGS Geophysical AS

Ramform Vanguard

C6TU8

Sanco Chaser

ZDHH3

6500m

6m

01/04/2021 - 31/08/2021

For 4 Days

9

See detailed map on our bulletin website

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Survey - Boyla Prospect (Ref: 1192)



A 4 Day Site Survey at the Boyla Prospect between the 01st April 2021 - 31st August. Using the vessels Ramform Vanguard Call sign: C6TU8 & Sanco Chaser Call sign: ZDHH3.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

PGS Geophysical AS

Ramform Vanguard

C6TU8

Sanco Chaser

ZDHH3

6500m

6m

01/04/2021 - 31/08/2021

For 4 Days

9

See detailed map on our bulletin website

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Survey - Ketch Platform 500m zone (Ref: 1195)



A 8 Day Ketch Platform 500m zone Survey between the 22nd March - 30th April 2021. Using the vessel Atlantis Dweller Call sign: 8PAB3.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro

Atlantis Dweller

8PAB3

N/A

22/03/2021 - 30/04/2021

For 8 Days

44

See detailed map on our bulletin website

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Survey - NW Schooner Platform 500m zone (Ref: 1197)



A 5 Day NW Schooner Platform 500m zone Survey between the 22nd March - 30th April 2021. Using the vessel Atlantis Dweller Call sign: 8PAB3.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro

Atlantis Dweller

8PAB3

N/A

22/03/2021 - 30/04/2021

For 8 Days

44

See detailed map on our bulletin website

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Survey - Schooner Platform 500m zone (Ref: 1196)



A 8 Day Schooner Platform 500m zone Survey between the 22nd March - 30th April 2021. Using the vessel Atlantis Dweller Call sign: 8PAB3.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro

Atlantis Dweller

8PAB3

N/A

22/03/2021 - 30/04/2021

For 8 Days

44

See detailed map on our bulletin website

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Scapa Field - Umbilical Installation & DSV Intervention



RSRUK give notice of DSV intervention in the Scapa Field, for the installation of a new control umbilical between the Claymore A Platform and the Scapa Template, including associated diving works.


The SCAPA production protection project will aim to safeguard production from the current 3 operating Subsea wells, and in addition will re-start production from E12.

 

Gas lift is required for production for each of the four Subsea Wells. Of the original 6 gas lift lines, 3 have been removed form service due to external corrosion and the others are to be retired during the project.

 

Gas life will be provided to the SCAPA template by re-purposing an existing 6" test line. Control of gas lift will be performed by the introduction of 4 new subsea gas lift chokes (one per well) and a dedicated control system to allow individual control feedback.

 

A new electro-hydraulic umbilical will also be installed to safeguard chemical injection routing from the Claymore platform to the field as part of the project. This will also provide the conduit for hydraulic and electrical control/feedback to the newly installed subsea chokes.

 

A water Injection Flowmeter and Pressure/Temperature Transducers shall also be installed to aid feedback from the Scapa Subsea system.

See detailed map on our bulletin website

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Rig - COSL Promoter



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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Catcher Field 3D / 4D Seismic Survey



Premier Oil UK have contracted PGS to conduct a Seismic survey over the Catcher Area assets located in block 28/9, the survey will also partly extend into blocks 28/3, 28/4 and 28/10. The survey is planned to commence 17th April 2021 and last 33 days.


The Seismic survey vessel to be used by PGS is the PGS Ramform Hyperion, call sign C6DB4, registered in the Bahamas. It is due to be mobilised from Flora in Norway on the 11th April and start shooting Seismic on 17th April 2021. The survey is due to last 33 days.

 

PGS Ramform Hyperion will be accompanied by two other vessels. The Thor Omega (support vessel)  that will also mobilise from Flora and the Groen Miranda (escort vessel) , which will mobilise from Scheveningen, Netherlands.

 

Seismic survey operations will be by active surveying and the firing of airguns

See detailed map on our bulletin website

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Pipeline Activities - Arran Field



A Pipeline Initiation System (an arrangement of anchors, chains and wires) has been installed within the Arran South 500m safety zone (installed on 28/09/20). Further vessel activity will be taking place in the area as below.


CSV (Seven Arctic) – ASTIS Install (Subsea 7) Arran Field Development – Infield  15/03/21 – Depart Field 22/03/21

  • Arran South Tie-in Structure installation

 

DSV (Seven Falcon) – Spool & Umbilical Installation (Subsea 7) Arran Field Development - Infield 18/04/21 – Depart Field 27/04/21

  • 12” spool installation at Arran South
  • Hook up umbilicals at Arran South
  • Mattress protection at Arran South (12” spools and umbilicals)

 

DSV (Seven Falcon) – Pipeline Leak Test and Dewatering (Subsea 7) Arran Field Development - Infield 27/04/21 – Depart Field 18/05/21

  • 12” spool installation at Shearwater
  • Pipeline leak test at Columbus
  • Mattress Reinstatement
  • Dewater pipeline system at Arran North
  • Umbilical tie-ins at Arran South
  • 6” XT spools & TSCJ at Arran South
  • Tree spool leak test
  • OCH install at Arran South
See detailed map on our bulletin website

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Drilling - Grove Platform UKCS Block 49/10a



The Maersk Resolve drilling rig will be mobilising from the port of Esbjerg in Denmark on or around 10th March 2021. The rig will be undertaking drilling activities at the Grove platform in UKCS block 49/10a expected to arrive at Grove on 12th March 2021.


The rig is likely to be on location for a total period of 130 days. 

See detailed map on our bulletin website

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Survey - Drilling Hazard Site Survey (Ref: 1185)



A 10 Day Drilling Hazard Site Survey between the 15th March - 15th April 2021. Using the vessel Geo Resolution Call sign: 3EIP9.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline

Ocean Resolution

3EIP9

N/A

21503/2021 - 15/04/2021

For 10 Days

30

See detailed map on our bulletin website

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Survey - Platform Surveys (Ref: 1184)



A 30 Day Platform Survey between the 12th March - 30th April 2021. Using the vessel Edda Sun call sign: 3EIP9


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro

Edda Sun

LARF7

N/A

12/03/2021 - 30/04/2021

For 30 Days

44, 49

See detailed map on our bulletin website

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Survey - Caister CM 500m Survey (Ref: 1186)



A 2 Day Caister CM 500m Survey between the 03rd March - 30th April 2021. Using the vessel Edda Sun call sign: 3EIP9


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro

Edda Sun

LARF7

N/A

03/03/2021 - 30/04/2021

For 2 Days

44

See detailed map on our bulletin website

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Survey - Area Test Survey (Ref: 1190)



A 1 Day Area Test Survey between the 24th March - 15th April 2021. Using the vessel Geo Resolution Callsign: 3EIP9.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline

Ocean Resolution

3EIP9

N/A

24/03/2021 - 15/04/2021

For 1 Day

30

See detailed map on our bulletin website

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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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Decommissioning Activities – HCF / Topsides Dismantlement of the Amethyst C1D Installation



Planned Topside dismantlement works are due to commence on the Amethyst C1D Platform (UKCS 47/14).


The Jack up Barge, will depart from Leman 27BT (UKCS 49/27B) 25th February 2021 (dependent on weather) and transit to the Amethyst field, where it will  commence HCF/Topsides dismantlement operations on Amethyst C1D Platform (UKCS 47/14).

See detailed map on our bulletin website

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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 - 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 - Erda - Amethyst 47/14-C1D



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


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Diving and Decommissioning Works - Northern Producer FPF - Dons Fields



EnQuest Heather Ltd intends to undertake Pipeline flushing, Well isolation and disconnection works in relation to the Northern Producer FPF and Dons Field decommissioning commencing 01st April 2021


The workscope comprises of a Dive Support Vessel (DSV) performing the flushing and isolation of the Gas Export pipeline from the Thistle Alpha Platform to Northern Producer FPF, the isolation and disconnection of the Oil Export pipeline at the WYE structure, the isolation and disconnection of the subsea wells from the pipelines at the West Don Field and the isolation and disconnection of the subsea wells from the pipelines at the Don South West Field.

 

On completion of the flushing and diving activities, an ROV Construction Support Vessel (CSV) will perform the disconnection of the risers from the Northern Producer FPF in preparation for the Northern Producer FPF being taken off-station and towed to port.

 

The DSV will be positioned at the Thistle Alpha Platform 500m Zone, the WYE structure, West Don Field and the Don South West Field and the CSV will be positioned within the Northern Producer FPF 500m Zone only during these activities.

 

The earliest start date for operations to commence is 01st April with the operations expected to last until the end of April. The operations will be undertaken from the following vessels:

 

Operation Vessel Dates In Field
Dive Support Vessel (DSV) Deep Discoverer 01/04/21 - 14/04/21
ROV Support Vessel (CSV) TBA 17/04/21 - 20/04/21

 

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.

 

The subsea safety 500m zones around the WYE structure, West Don & Don South West fields will remain in place for the foreseeable future.  

See detailed map on our bulletin website

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Suspended Wellhead : Affleck 30/19-1



Suspended wellhead structure on seabed.


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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

 

See detailed map on our bulletin website

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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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Damaged pipeline



Physical damage to pipeline


Physical damage to pipeline, current cause unknown. Vessel on scene assessing.

See detailed map on our bulletin website

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Abandoned Well - 206/12a-3



This wellhead has been removed from the seabed.


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Abandoned Well - 29/04e-5Z



This wellhead has been removed from the seabed.


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Abandoned Well - 9/19b-29 & 9/19b-29A



This wellhead has been removed from the seabed.


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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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Drilling - Elgood Well 48/22c-H1



Petrofac Facilities Management Ltd (PFML) propose to drill and complete a production well at the Elgood Subsea location, from the 9th March 2021 for, the duration of, 89 days. The drilling operation will be carried out by Noble Hans Deul drilling rig.


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Survey - Interim Pipeline Survey (Ref: 1177)



A 10 Day Interim Pipeline Survey PL22, PL23 & PL24. From the 16th February - 31st March 2021. Using Vessel Geo Focus callsign: PCOS


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

N Sea

Geo Focus

PCOS

N/A

16/02/2021 - 31/03/2021

For 10 Days

48, 49, 52, 53

See detailed map on our bulletin website

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Survey - Leman 27B Debris Survey (Ref: 1162)



A 2 Day Debris Survey Leman 27B. From the 16th February - 31st March 2021. Using the vessel Geo Ranger Callsign: PHHV.


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

N Sea

Geo Ranger

PHHV

N/A

16/02/2021 - 31/03/2021

For 2 Days

49

See detailed map on our bulletin website

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Drilling Operation - Columbus



Serica Energy is to perform a drilling operation and sub-sea installation at the Columbus location, located in the Central North Sea.


  • Location Name: Columbus
  • Well Co-ordinates: 57° 20.968′ N  002° 05.237′ E
  • Tie-In Structure Co-ordinates: 57° 20.979′ N  002° 05.198′ E
  • Start Date: 01 March 2021
  • Duration: Approx. 70 Days
  • Rig Name: Maersk Resilient
  • ERRV: Esvagt Sigma
  • Safety Zone: 500 metre radius
See detailed map on our bulletin website

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Abandoned Well - 44/18-2Z



This wellhead has been removed from the seabed.


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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)


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

See detailed map on our bulletin website

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Suspended Wellhead - Tolmount Main NE 42/28d-16



There is a new suspended wellhead on the seabed. These can be up to 4 metres high, they are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.


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Suspended Wellhead - Tolmount Main SW 42/28d-17



There is a new suspended wellhead on the seabed. These can be up to 4 metres high, they are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.


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Suspended Wellhead - Tolmount Main SE 42/28d-18



There is a new suspended wellhead on the seabed. These can be up to 4 metres high, they are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.


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Survey - Pipeline Survey TGT to LOGGS PP (Ref: 1170)



A 27 Day Pipeline Survey TGT to LOGGS PP. Using unmanned vessel X09 Call Sign: MHIJ8 from the 25th January - 31st March 2021


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

XOCEAN

X09

MHIJ8

N/A

16/02/2021 - 31/03/2021

For 5 Days

47, 48, 49

See detailed map on our bulletin website

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Survey - Pipeline Survey TGT to Viking AR (Ref: 1172)



A 5 Day Pipeline Survey TGT to Viking AR. Using unmanned vessel X09 Call Sign: MHIJ8 from the 16th February - 31st March 2021


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

XOCEAN

X09

MHIJ8

N/A

16/02/2021 - 31/03/2021

For 5 Days

47, 48, 49

See detailed map on our bulletin website

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Survey - Pipeline Survey LOGGS to Viking Bravo (Ref: 1174)



A 5 Day Pipeline Survey LOGGS to Viking Bravo. Using unmanned vessel X09 Call Sign: MHIJ8 from the 16th February - 31st March 2021


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

XOCEAN

X09

MHIJ8

N/A

16/02/2021 - 31/03/2021

For 5 Days

49

See detailed map on our bulletin website

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Survey - Pipeline Survey TGT to LOGGS PP (Ref: 1173)



A 5 Day Pipeline Survey TGT to LOGGS PP. Using unmanned vessel X09 Call Sign: MHIJ8 from the 16th February - 31st March 2021


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

XOCEAN

X09

MHIJ8

N/A

16/02/2021 - 31/03/2021

For 5 Days

47, 48, 49

See detailed map on our bulletin website

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Survey - Sub-bottom Profiling Vulcan UR & Vampire OD (Ref: 1175)



A 5 Day unmanned Sub-bottom profiling (SBP) will be used at the Vulcan UR and Vampire OD platform footprints to ascertain depth of burial of pile stubs & conductor stubs. Using unmanned vessel X09 Call Sign: MHIJ8 from the 16th February - 31st March 2021


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

XOCEAN

X09

MHIJ8

N/A

16/02/2021 - 31/03/2021

For 5 Days

49

See detailed map on our bulletin website

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Rig - Valaris 122



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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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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Survey - Debris Clearance LOGGS,Vampire OD, Vulcan UR (Ref: 1169)



A 27 Day unmanned debris clearance survey of LOGGS,Vampire OD, Vulcan UR. Using unmanned vessel X09 Call Sign: MHIJ8 from the 19th January until 31st March 2021


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

XOCEAN

X09

MHIJ8

N/A

19/01/2021 - 31/03/2021

For 27 Days

47, 48, 49

 

There will be a debris clearance and bathymetry survey at the sites of two LOGGS satellite installations that were removed in 2019 and 2020, Vampire OD and Vulcan UR. In addition, there will be two pipeline length surveys (PL0027/PL0161 & PL2643/PL2644) and pipeline span surveys conducted at eight points along five pipeline / umbilical’s, within the LOGGS and Viking fields. An unmanned survey vessel will undertake these activities.

See detailed map on our bulletin website

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Drilling Anchor Points - Jerv Prospect



Chrysaor Norge As are planning to drill the Jerv prospect on the Norwegian continental shelf, with the semi submerged drilling rig, COSL Innovator. Three (3) of the anchors and the belonging mooring lines will be placed on UK soil.


The Works shall comprise the installation of: three anchors and moorings of the COSL Innovator which cross the median line with Norway and extend into the UKCS.

See detailed map on our bulletin website

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Survey - Proposed Drilling Survey Diadem Well (Ref: 1166)



A 6 Day proposed drilling survey of the Diadem Well. Using Vessels Fugro Galaxy Call Sign: C6YY4 & Fugro Synergy Call Sign: C6XR3 from the 18th January until 01th June 2021


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Fugro GB North Marine Ltd

Fugro Galaxy

C6YY4

Fugro Synergy

C6XR3

700m

3m

18/01/2021 - 30/06/2021

For 6 Days

22

See detailed map on our bulletin website

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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 - Ocean Endeavor



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


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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

See detailed map on our bulletin website

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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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Decommissioning - Ninian Platform



Two cardinal buoys in proximity to Ninian North Platform, after removal of platform topsides (and associated navaids) in 2020.


West cardinal buoy (Fl. Q. (9). 15s), including ground tackle, with 400m excursion radius. Buoy fitted with AIS.

East cardinal buoy (Fl. Q. (3). 10s), including ground tackle, with 400m excursion radius. Buoy fitted with AIS.

See detailed map on our bulletin website

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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.

See detailed map on our bulletin website

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Buzzard Field - unconnected subsea infrastructure



Drilling activity in the Buzzard Field will cease for 2020 in September leaving 4 x Xmas Trees and 2 x wellhead conductors unconnected in the field until the subsequent subsea campaign in 2021. The locations are in the table below.


Subsea structure

Manifold Slot

Coordinates ED50

Protection structure

PN1

57° 50' 44.150" N

000° 54' 35.320" W

Xmas Tree

PN3

57° 50' 42.899" N

000° 54' 34.214" W

Protection structure

PN5

57° 50' 44.988" N

000° 54' 38.071" W

Xmas Tree

PN7

57° 50' 45.401" N

000° 54' 36.426" W

Xmas Tree

IN1

57° 50' 45.817" N

000° 54' 34.780" W

Xmas Tree

IN2

57° 50' 43.312" N

000° 54' 32.569" W

 

See detailed map on our bulletin website

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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. 

See detailed map on our bulletin website

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Dropped Mattress - Shell 34" Pipeline



The 6th mattress for the Shell 34” pipeline will be recovered between 14th November - 31st January 2021 by the Seven Falcon. The Fleximat dimensions are 6.4m x 3.0m x 0.5m Weight in Air 15860kg.


During overboarding of the 6th mattress for the Shell 34” pipeline, the crane wire parted when the matt was entering the splash zone at approx. 25m above seabed. The Fleximat dimensions are 6.4m x 3.0m x 0.5m Weight in Air 15860kg.

 

The mat was being overboarded 15m away from the 34” pipeline, the mattress and frame landed on the seabed 6m away from the 34” pipeline

  • Fleximat 6.4x3.0x0.5m 2.4 & 3.2te/m3 Concrete Mattress – Weight in Air 15860kg
  • Mattress Lift frame – 6.3x2.4m – Weight in Air 1.7te
  • Approx. 25m Crane wire
  • 0.5t Crane Block

25m Crane wire and 0.5te Crane Block safely recovered 13:50, 08/09/20.

 

Plan is to recover mattress but inspections into the current state of the mattress are required to determine a suitable recovery methodology.

 

A marine licence (ML/634) application has been submitted and approved by BEIS,  A variation to extend the marine licence to 14th November 2020 was approved by BEIS on 2nd November, and a second variation for extension to 31st January 2021 is now pending with BEIS.  This is due to scheduling delays due to poor weather.  The mattress frame and mattress will now be recovered by the Seven Falcon offshore support vessel.

 

See detailed map on our bulletin website

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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.

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 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 - 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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Survey - Alexandra, Victor Debris Clearance (Ref: 1164)



A 5 Day Gardline Alexandra, Victor Debris Clearance Survey. Using Vessel MV Ocean Reliance Call Sign: HP6391 From the 15th January until 31st July 2021


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline Limited

MV Ocean Reliance

HP6391

N/A

15/01/2021 - 31/07/2021

For 2 Days

49

44

See detailed map on our bulletin website

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Survey - Millom West & Calder Debris Clearance (Ref: 1165)



A 2 Day Gardline Millom West & Calder Debris Clearance Survey. Using Vessel MV Ocean Reliance Call Sign: HP6391 From the 15th January until 31st July 2021


Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Gardline Limited

MV Ocean Reliance

HP6391

N/A

15/01/2021 - 31/07/2021

For 2 Days

110

113

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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Suspended Wellhead - 47/09b-5



Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.


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Suspended Wellhead - 16/06a-V2



Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.


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Suspended Wellhead - 16/02b-5



Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.


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Suspended Wellhead - 9/19b-29A



Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.


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Suspended Wellhead - 9/19b-29



Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.


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Suspended Wellhead - 9/19b-28z



Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.


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Suspended Wellhead - 9/19b-28



Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.


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Rig Movement - Paul B Lloyd Junior



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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Drilling - Glengorm Appraisal Campaign



The Borr Prospector 5 Heavy Duty Jack Up Rig will be positioned at the Glengorm South appraisal well location 22/26d-C.


The Borr Prospector 5 Heavy Duty Jack Up Rig will be positioned at the Glengorm South appraisal well location 22/26d-C.The rig will remain on location for approximately 216 days before departing to the second appraisal well location on Glengorm, well 22/21c-C.

See detailed map on our bulletin website

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Rig - West Mira



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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Dropped Large Anchor



A large anchor has been dropped to the seabed by the fishing vessel 'Benarkle' (PD400). The anchor is approximately 3nm SSE of the Ninian South platform.


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Wet Storage of Caisson Sections - Bruce 500m Safety Zone



Caisson Wet Storage Location


The wet storage area will, when complete, consist of eight by one tonne gabions with two sections of redundant caisson resting on them. The two caisson sections are 20 metres and 18.5 meters in length weighing 18.4 tonnes and 10.3 tonnes respectively. Six by one tonne gabions were placed on the seabed with the 20 meter section of caisson resting atop of them on the 12th of June 2020. The date when the second 18.5 meter section of caisson will be position in the wet storage area has not yet been determined. 

See detailed map on our bulletin website

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Dropped Anchor



Trawler J. Bergvoll Call Sign: LLAJ had come fast to an anchor in Position: 61°32.500'N 001°33.200'E and was dropped in Position: 61°30.371'N 001°40.812'E . Trawl damaged.


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Drilling - Noble Sam Hartley Golden Eagle Infill



Noble Sam Hartley HDJU undertaking infill drilling from the Golden Eagle platform.


The Noble Sam Hartley will be positioned by wellhead platform 'W' from August 2020 for up to 1 year. The Noble Sam Hartley has three jack-up legs with spud cans to support and stabilise the rig on the seabed and is held in position by a 4-anchor mooring spread.  Once the rig is in position, the anchors and chains will be removed.

See detailed map on our bulletin website

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Fishing Hazard



Details of fishing hazard


A fishing vessel had to release a large clump of concrete back to the sea bed after having become snagged. The concrete clump could pose further risk to fishermen. The lump had broken into two parts.

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

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.

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.

 

See detailed map on our bulletin website

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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.

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.

See detailed map on our bulletin website

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Freespans - Breagh Pipelines



Two freespans have been identified on the 20” gas export line (PL2768). Please exercise caution in this area.


Start Position End Position

Length (m)

Height  (m)

54°36.952'N 00°14.608'E 54°36.952'N 00°14.599'E 23.15 1.00
54°39.576'N 00°49.814'W 54°39.577'N 00°49.827'W 30.37 1.00

 

See detailed map on our bulletin website

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Pipeline Span - PL3088, Cygnus Field



The PL3088 Cygnus Export Pipeline Span located ~21km South West of Neptune’s Cygnus Alpha Complex.


The PL3088 Cygnus Export Pipeline Span located ~21km South West of Neptune’s Cygnus Alpha Complex, as reported during the 2019 pipeline inspection campaign. The 29m span length and 0.26m span depth shown below could present a Hazard to Fishing.

 

Start Position End Position Length (m) Height (m)
54º27.672’N   02º01.612’E 54º27.664’N   02º01.589’E 29m 0.26m

 

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Breagh Pipelines - Exposed Fibre Optic Cable



The Breagh fibre optic cable (PL2770) is exposed on the seabed along various stages of the route between Redcar and the Breagh A platform.


A scallop dredger became snagged on an exposed section of the fibre optic cable in June 2019 causing serious damage to the fibre optic cable and subsequently had to abandon retrieval of his gear for safety reasons.  This notification is made to the fishermen, operating between Redcar and the Breagh A platform, to be advised that the fibre optic cable represents a serious snag risk to both scallop dredgers and static gear fishing in the vicinity of the line.

 

Fishermen are advised to stay away from the line to avoid the risk of becoming snagged on the unburied sections of cable.

 

Breagh Alpha Platform 54°35.693'N 000°25.926'E
IP1 54°36.372'N 000°24.471'E
IP2 54°37.462'N 000°06.365'W
IP3 54°38.642'N 000°40.856'W
IP4 54°39.893'N 000°55.992'W
IP5 54°37.757'N 001°04.765'W

 

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