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Rig - West Elara



This oil & gas drilling rig has moved to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Habitat Assessment Survey - Isolde blocks 23/26, 23/27, 30/1 and 30/2



NEO Energy has contracted the Gardline – Ocean Geograph survey vessel to conduct an Habitat Assessment Survey of the Isolde licence P2390, located in blocks 23/26, 23/27, 30/1 and 30/2, approximately 244 kilometres (km) south east of Peterhead on the Scottish coastline and 11 km west of the UK/Norway median line


The vessel is scheduled to commence a dual NEO energy campaign mobilisation in Hull port as soon as 29th April 2024, to undertake survey activities at Buchan Horst field and Isolde. Depending on schedule optimisation the Isolde survey could commence survey activities as soon as 30th April 2024 or as late as end of May 2024. Isolde survey activities are approximately 2-3 days (including an allowance for weather downtime). Isolde survey operations will be undertaken within UKCS Block 23/26, 23/27, 30/1, and 30/2 and covers an area of approximately 53 km2.

Within the proposed survey area, it is anticipated that up to 4 stations and 6 transects will be investigated with a digital stills camera and video system.

See detailed map on our bulletin website

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Geophysical Survey - Buchan Horst Field



NEO Energy has contracted the Gardline – Ocean Geograph survey vessel to conduct geophysical activities including an ultra high - resolution 2D seismic survey of the Buchan Horst field, located in UKCS block 21/1a of the Central North Sea.


The vessel is scheduled to commence mobilisation in Hull port as soon as 29th April 2024, to commence survey activities as soon as 30th April 2024, and to complete survey activities approximately 20 days later (including an allowance for weather downtime).

See detailed map on our bulletin website

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Decommissioned Gas Installation - Hewett 52/5A



Transit of Final Location of Heavy Lift Vessels (HLV) Scaldis Rambiz & Gulliver. Scaldis will start with the removal of the decommissioned gas installation the Hewett 52/5A beginning of May 2024. There will be an HLV located at 52/5A completing the removal of the installation topsides and jacket and will be transiting from the port of Flushing to the location on the 1st of May. The HLV is expected to be on location on the 2nd of May as per the schedule below.


The schedule below provides an overview of the planned works for HLV Rambiz, HLV Gulliver and their supporting vessels for the removal of the 52/5A platform. This schedule does not include possible weather delays.

 

02/05/2024 Arrival of Rambiz with AHT Pegasus to 52/5A field and start of preparation activities 02/06/2024 Arrival of cargo barge Greenbarge 2 together with towing tug Eems Warrior 09/06/2024 Departure of loaded Cargo barge Greenbarge 2 together with towing tug Eems Warrior 11/06/2024 Departure of Rambiz with AHT Pegasus from 52/5A field 14/06/2024 Arrival of HLV Gulliver with AHT Fairplay Nublo to 52/5A field for topside removal activities 17/06/2024 Departure of HLV Gulliver with AHT Fairplay Nublo from 52/5A field with topside in her hooks 22/06/2024 Arrival of HLV Gulliver with AHT Fairplay Nublo to 52/5A field for jacket removal activities 01/07/2024 Departure of HLV Gulliver with AHT Fairplay Nublo from 52/5A field with jacket in her hooks

See detailed map on our bulletin website

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Rig Move - Noble Resilient



MODU Noble Resilient will move from Port of Skagen, Denmark, to the RAVN oilfield on the Danish continental shelf.


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Seismic Survey - East Irish Sea



Spirit Energy has contracted the Shearwater GeoServices - operated SW Amundsen survey vessel to conduct a high - resolution 3D seismic survey of the South Morecambe and North Morecambe gas fields, located in UKCS blocks 110/2, 110/3, 110/7, 110/8 and 113/27 of the east Irish Sea. Update 18th April 2024: Vessel in survey area as of 17th April 2024.


The vessel is scheduled to commence mobilisation in Liverpool port as soon as 15th April 2024, to commence survey activities as soon as 20th April 2024, and to complete survey activities approximately 30 days later (including an allowance for weather downtime).

 

Note that the inner area shown is where the seismic survey data acquistion itself will be undertaken. The outer area is where line turns, line run-out, and soft start will take place. This outer area will also allow for the deployment and retrieval of streamers, and provide space for weather standby.

See detailed map on our bulletin website

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Open WHPS roof panels at Murdoch KM 44/22a-10Y Well



The roof panels on the Wellhead Protection Structure (WHPS) at the Murdoch KM location are currently in an open position. The WHPS is within the existing 500m zone.


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Subsea Decommissioning - Western Isles Field Decommissioning Project



Dana Petroleum (E&P) Limited has contracted Boskalis Subsea Services Limited (BSS) for the Western Isles Field Decommissioning Project


The Western Isles Development (WID), operated by Dana Petroleum (E&P) Limited , comprises the Harris and Barra fields and is located in Block 201/24a of the UKCS, 160 km to the East of Shetland, and approximately 500 km North-North East of Aberdeen. BSS will have the DSV Boka Topaz in the TAQA Tern Platform 500m zone to carryout diving operations at the SSIV skid for 5 to 7 days before relocating to the Western Isles worksites for the next 50 days. The CSV Boka Northern Ocean will arrive later in the operations to assit in recovery operations.

See detailed map on our bulletin website

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Well Plug & Abandon activities - Juliet/ Minke & Orca



Carry out DSV barrier testing and frame removal at Juliet and Minke locations from April 2024. Carry out DSV dredging activities at Orca Well in April 2024. Carry out Rig P&A activities at Juliet/ Minke & Orca Wells from April through to September 2024.


DSV Boka Topaz to arrive at the Juliet and Minke locations to prove barriers prior to rig intervention.

WHPS framework to be cut off by DSV at the Juliet and Minke locations.

Open hole dredging activities to be carried out at Orca Well in preparation for rig arrival.

 

Drill Rig "Well Safe Protector" to carry out P&A activities at Julient/ Minke and Orca locations.

See detailed map on our bulletin website

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Rig - Seafox 7



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Deepsea Yantai



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - COSL Promoter



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Askeladden



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Deepsea Nordkapp



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig Move - Valaris 123



This oil and gas drilling rig has moved to this new position. Rigs are protected by a 500 m safety zone and some may have anchors extending beyond this zone.


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Rig Move - COSL Pioneer Semi-Submersible MODU



COSL Pioneer - a semi-submersible Mobile Offshore Drilling Unit (MODU) is planned to move from Ithaca Captain Field (Block 13/22a) to Ettrick field (Blocks 20/2a and 20/3a) to perform an abandonment campaign of five wells. The planned Rig move date is on 14th April 2024.


Anchor pre-lay is due to commence Thursday 4th April at the earliest, with the COSL Pioneer due to move to location 1-2 weeks later (current estimate 14th April).

 

The nature of activity involves rig positioning/anchor handling for a well abandonment campaign lasting approximately 183 days for the entire operation. 

 

Precautions taken to reduce impact on shipping and other sea users:

  • Advance notice to other sea users/marine authorities/fishing information services will be provided.
  • A dedicated ERRV will be in attendance, fitted with ARPA Radars and AIS systems and shall perform monitoring of all traffic via a 24-hour lookout on the bridge. The ERRV shall keep records of all logged vessels in the area.
  • The COSL Pioneer will use its navigation lights and warning devices, such as obstruction lights and foghorn, to advise shipping of its presence while on location.
See detailed map on our bulletin website

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Freespan - 4" Meg Bacton - Leman AP



High Freespan. Max 13m long freespan with height exceeding 1.6m


Please check your Fishsafe plotter data.

See detailed map on our bulletin website

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High pipeline freespan - 4" Meg Bacton



High pipeline freespan maximum 50m long freespan with excessive height of 1.8m


Please check your Fishsafe plotter data

See detailed map on our bulletin website

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Verification Operations - UKCS Blocks 29/03c and 29/04c



As part of the Shell U.K. site and pipeline route seabed survey there is a requirement to undertake a verification operation within UKCS Blocks 29/03c and 29/04c. The anticipated duration of the verification operation is one day. For further details on the main survey refer to Notice "Site and Pipeline Route Environmental Seabed Survey - Central North Sea".


Data will be acquired over the survey area using a multi-beam echosounder (MBES) and side scan sonar (SSS) equipment. The survey equipment will be operated within the survey area. The survey vessel will make line turns outside of the main survey area but within the greater working area (GWA). The co-ordinates provided are for the GWA. 

 

 

The Survey will be undertaken by the Fugro Searcher, Call sign C6EI5 and IMO Registration number 9504011.

See detailed map on our bulletin website

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Dive Support Vessel (DSV) Campaign – WOSPS/Clair



Dive Support Vessel (DSV) Deep Explorer (Call Sign C6BZ7) will be carrying out diving operations at the WOSPS Clair connection point. Dates 22 April 2024 – Duration expected approx. 1 week. Other vessels are requested to keep safe distance.


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Marine Operations - Rosebank Offshore Development Area



Dive Support Vessel (DSV) Deep Explorer (Call Sign C6BZ7) will be carrying out marine operations at the Rosebank field (Offshore Development Area). Starting 30 April 2024 – duration expected approx. 3 weeks. Other vessels are requested to keep safe distance.


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Decommissioning - Leman 27J



Decommissioning activity will be carried out at the Leman 27J platform between June and September 2024. The ERDA Jackup Barge will be interfaced with the platform for the duration of the project. The decommissioning will involve the plug and abandonment of all wells, making the topside hydrocarbon safe (HSC), and the removal of the topside and it transport to shore for recycling. The ERDA Jackup Barge will be interfaced with the installation for the duration of the project.


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Subsea Field Decommissioning - Arthur Field



The Arthur field's three standalone wells will be decommissioned between April and July 2024. The HAEVA Jackup Barge will be on location for the duration of the project, along with one Diving Support Vessel (DSV).


Arthur consists of three standalone wells (A1, A2 and A3) and a manifold. The wells are up to 3km apart, and the manifold is located close to the A1 well. 

 

The HAEVA will move from one well to the next as it completes the plug and abandonment of the well.  The DSV will be utilised to support the pipeline flushing and will move between wells as per operational requirements.

 

The current planned sequence HAEVA rig move and positioning is as follows:

A2 - 17 April 2024

A3 - 25 May 2024

A1 - 14 June 2024

END - 1 August 2024

 

See detailed map on our bulletin website

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Environmental Sampling - Gannet E Field



Petrofac will undertake environmental sampling in the Gannet E field using the Ocean Observer Petrofac, lasting approximately two days.


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Site and Pipeline Route Survey - Belinda



Pipeline, umbilical route and rig site survey of Belinda location, including 2DHR, ahead of drilling operations. Petrofac will be undertaking a survey using the Gardline Ocean Observer vessel. The survey window begins from 1 March 2024 and lasting approximately 17 days.


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Geophysical Survey - Evelyn



Petrofac to undertake a geophysical survey in the Evelyn field using the Ocean Observer, lasting approximately 2 days.


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Apache Forties Charlie Riser Replacement (DSV Boka Polaris)



Apache North Sea intends using the Dive Support Vessel (DSV) Boka Polaris to install a new riser off the East face of the Forties Charlie Platform. The vessel will be working within Forties Charlie platform 500m zone for about 21 to 25 days.


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Deep Arctic DSV - Power Cable Installation - Captain Field



The Deep Arctic will be infield installing a power cable from Captain BLPA to Area B UTM structure. Divers will be used to tie-in the power cable to structures at the riser base (BLPA) and UTM structure (Area B).


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Wellhead Protection Structure - Rita 44/22c-12Z



The Canopy has been removed from top of Wellhead Protection Structure (WHPS) on the Rita 44/22c-12Z subsea well. The WHPS is located within an existing 500m zone.


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Penguins - Anchor Pre-lay



Anchor pre-lay at penguins prior to MODU arrival.


Install of anchors and chain prior to arrival of MODU 

See detailed map on our bulletin website

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Wood Supplementary Valve Skid (SVS) Installation



The Wood Supplementary Valve Skid (SVS) workscope will be conducted over two phases in Q3 2023 and Q2 2024, an Isolation Valve Structure (IVS) was installed 11th August 2023 with an as laid position of (57°21'47.5"N 01°26'32.3"E). The SVS and adjoining spools will be installed between positions (57°21'48.4"N 01°26'32.8"E) and (57°21'47.8"N 01°26'31.7"E) over the period 10th April to 30th April 2024 with a DSV infield for approximately 2-3 weeks.


See attached files MON-SIV-GE-LY-00002-001_I01_1.pdf and MON-SS-GA-00009-003_C04_2.pdf which show the current status and details of the IVS and MON-SS-GA-00020-001_C01_1 - Wood Well Layout - Sheet 1.pdf which shows the proposed layout on completion of all works.  

See detailed map on our bulletin website

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Geophysical Site Survey - UKCS Block 29/7



It is planned to undertake geophysical site survey activities within UKCS Block 29/7.The purpose of the survey activities is to undertake an anchor conditions and debris survey at the location, for the potential emplacement of a semi-submersible rig.


Data will be acquired over the survey area using a parametric sub-bottom profiler (SBP), CHIRP sub-bottom profiler (cSBP), multi-beam echosounder (MBES), side scan sonar (SSS), and magnetic surveying equipment.  The site survey will be conducted over a 4 km x 4 km (16 km2) survey area with a 36 km2 greater working area (GWA).  The survey equipment will be operated within the survey area.  The survey vessel will make line turns outside of the survey area but within the GWA.

 

The survey vessel undertaking the survey operations is the Fugro Searcher (Call-sign C6E15; IMO 9504011).

 

The co-ordinates provided below are for the Greater Working Area.

See detailed map on our bulletin website

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Site Survey - UKCS Block 29/3 - Central North Sea



The plan is to undertake geophysical site survey activities within UKCS Block 29/3. The purpose of the survey activities is to assess the anchor conditions and complete a debris survey ahead of the potential emplacement of a semi-submersible rig.


Data will be acquired over the survey area using a parametric sub-bottom profiler (SBP), CHIRP sub-bottom profiler (cSBP), multi-beam echosounder (MBES), side scan sonar (SSS), and magnetic surveying equipment.  The site survey will be conducted over a 4 km x 4 km (16 km2) survey area with a 36 km2 greater working area (GWA).  The survey equipment will be operated within the survey area.  The survey vessel will make line turns outside of the survey area but within the GWA.

 

The proposed survey vessel is the Fugro Searcher (call Sign C6E15; IMO 9504011).

 

The co-ordinates provided below are for the survey Greater Working Area

See detailed map on our bulletin website

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Anchor Spread - Suspended Well 9/08-2



Anchor spread and Rig in place.


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Anchor Spread - Suspended Well 9/08-1



Anchor spread and Rig in place.


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Trawl Sweep - Don Decommissioning



Trawler Westro PD20 conducting an overtrawl survey of recently decommissioned subsea oil field, Don.


Trawler Westro PD20 will be making a verification sweep of the former 500m zone at Don subsea oil field to confirm that area is suitable for normal fishing operations to proceed following decommissioning

See detailed map on our bulletin website

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Plug & Abandonment Operations - 9/08-2 Well



Arrival of the Ocean Patriot to commence P&A operations at 9/08-2 well.


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Subsea Construction & Pipelay Activities - Talbot & Affleck Developments



Harbour Energy intends to undertake subsea construction & pipelay works on the Talbot Field Development project between March & September 2024. The Field Development traverses across UKCS Blocks 30/07b, 30/12a, 30/13d & 30/13e. In addition, NEO Energy also intends to undertake subsea construction & pipelay works on the Affleck Field redevelopment project commencing ca. 18th April 2024. The Field Development traverses across UKCS Blocks 30/07b, 30/12a, 30/13c, 30/13d, 30/13e, 30/14a & 30/19a.


Talbot Field Devleopment Project

 

Subsea activities on Talbot will commence 31st March 2024 with diving preparatory works within the Judy Platform 500m safety zone.  This will be followed by the installation of a new 15km long 12”/18” Pipe-In-Pipe Pipeline and Electro Hydraulic Chemical (EHC) Control Umbilical between the Talbot Field and the Judy Platform.  A Survey Support Vessel (SUV) will be used to support pipeline and umbilical lay operations as well as performing the pre-commissioning activities for the newly installed pipeline.  A Trenching Support Vessel (TSV) will be used to plough and backfill the pipeline and umbilical.  On completion of pipelay and trenching activities, a rock dump vessel will perform spot rock dump activities along the pipeline and umbilical route and at the existing pipeline crossing locations. 

 

A subsea manifold structure (Talbot DC1 Manifold) will be installed at the Talbot field location using a Construction Support Vessel (CSV).  The CSV will also install a further subsea structure (Talbot SSIV Manifold) within the Judy Platform 500m safety zone. 

 

A Dive Support Vessel (DSV) will perform the tie-ins of the newly installed pipeline and umbilical at the Talbot DC1 Manifold location and within Judy Platform 500m safety zone. The DSV will also support the commissioning of the pipeline and umbilical. 

 

All vessels will be transiting back and forth between the Talbot and Judy locations numerous times during the construction phase.

 

Affleck Field Developmentv Project 

 

Subsea activities on Affleck will commence circa 18th April 2024 with a new 21km 8”/12” Pipe-In-Pipe Pipeline to be laid between the Affleck Manifold and the Talbot Field DC1 Manifold, and a new 36km Electro Hydraulic Chemical (EHC) Control Umbilical to be laid between the Judy Platform and the Affleck Manifold.  In support of the pipelay and umbilical lay there will be a survey support vessel and two Trenching vessels, one to plough and backfill the pipeline and one to jet trench the EHC Umbilical.  The survey support vessel will also be performing the pre-commissioning activities for the newly installed pipeline.  The vessels will be transiting back and forth between these locations numerous times during the construction activities.

 

A Dive Support Vessel (DSV) will be performing the tie-ins of the newly installed pipeline and umbilical at the Affleck Manifold Location, the Talbot DC1 Manifold location and within Judy Platform 500m zone.  The DSV will also support the commissioning of the pipeline and umbilical.

 

On completion of pipelay and trenching activities a rock dump vessel will perform spot rock dump activities along the pipeline and umbilical route and at the existing pipeline crossing locations.  The rock dump activities are currently split into two separate scopes.

 

The earliest start date for Affleck operations to commence is 18th April 2024 with the operations expected to last until the end of September.

 

Key Co-ordinates

 

Key location co-ordinates are given in this bulletin.  Also, please refer to the attached marked-up Admiralty Charts.  

 

There are established 500m safety exclusion zones at all of these locations.   Construction vessels will be operating both within and between all of the above mentioned 500m safety zones during the construction phase.  All mariners are advised to remain clear of these locations until construction operations are completed.

 

Vessel Details

 

The combined Talbot and Affleck operations will be undertaken from the following vessels:

 

Operation

Vessel

Call Sign

Dates in Field

Dive Support Vessel (DSV) – Talbot Preparatory Works

Deep Arctic

C6XW3

March / April

Survey Support Vessel (SUV)

Olympic Triton

LADM3

April / May / June

Talbot & Affleck Pipeline Installation Vessel

Deep Energy

C6YL2

April / May

Construction Support Vessel (CSV) – Talbot Umbilical and Structures Installation

North Sea Atlantic

LAYS7

May

Affleck Umbilical Installation Vessel

Deep Energy

C6YL2

July / August

Talbot & Affleck Pipeline Trenching Vessel (TSV)

Normand Drott

LDRO

May / June

Affleck Umbilical Trenching Vessel (TSV)

Grand Canyon III

LACJ8

August

Dive Support Vessel (DSV)

Deep Arctic

C6XW3

July / Aug / Sept

Rockdump Vessel (FFPV) Pipeline

Nordnes (TBA)

PHOG (TBA)

June

Rockdump Vessel (FFPV) Umbilical

Nordnes (TBA)

PHOG (TBA)

September

Guard vessels

Various

Various

April to Sept

 

 

See detailed map on our bulletin website

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Environmental Monitoring Survey - Shearwater Field



Shell U.K. Limited plans to undertake a further Environmental Monitoring Survey over the Shearwater field within UKCS block 22/30b. The Shearwater field is located within the Central North Sea (CNS) ~230 km from the UK coastline and 26 km from the UK/Norwegian median line in a water depth of 90 metres.


Data will be acquired over the survey area using multi-beam echosounder (MBES), side scan sonar (SSS), and magnetic surveying equipment.

 

The monitoring survey operations will be conducted within a 2.5 km x 2.5 km area centred on the Shearwater A platform with a 6.5 km x 6.5 km Greater Working Area (GWA) to allow for turning. The survey will include up to 11 grab sample locations.

 

The Co-ordinates provided below are for the Greater Working Area (GWA)

See detailed map on our bulletin website

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Structure in situ - Leverett CAN



Leverett CAN-basic left in situ until it is recovered by a vessel in June 2024. Following the drilling of the Leverett appraisal well, the Transocean PBLJ and its anchors left the location on 14th February. The Leverett CAN-basic structure will remain in situ at the well location until it is recovered in June.


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Overtrawl Trials - Curlew B



The Westro PD20 will be used to complete Overtrawl Trials of the Curlew B 500m zone, as part of the field Decommissioning Programme. Vessel: Westro PD20 Dates the vessel will arrive in field / depart the field: Window 1st – 30th April. Expected duration 5-7days.


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Pipeline survey - Birgitta and Montrose platforms



Survey of pipeline route between Birgitta and ETAP and Birgitta and Montrose platforms. The proposed survey operations will be undertaken along the centre of the two routes, and within a 2km by 2km box surrounding the proposed Birgitta well locations. The greater working area (including line turns) is a 3km boundary surrounding the total survey area is anticipated to be approximately 208 km2


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Environmental Seabed Survey - Central North Sea



Shell UK Limited is planning to undertake geophysical and environmental site survey and pipeline route survey activities mainly within UKCS Blocks 29/4, 29/5, 29/9 and 29/10, located approximately 225 km east of Scotland. The pipeline route extends into UKCS Blocks 22/30 and 29/5. The purpose of the survey activities is to undertake an Environmental Baseline Survey and associated Habitats Assessment.


The site survey will be conducted over a 6 km x 6.1 km survey area with an 8 km x 8.1 km Greater Working Area (GWA). The pipeline survey corridor is 700 metres wide and the GWA is 2000 metres, 1000 metres either side of the pipeline route.

 

Data will be acquired over the survey area using a parametric sub-bottom profiler (SBP), multi-beam echosounder (MBES), side scan sonar (SSS), and magnetic surveying equipment.  The survey vessel will make line turns outside of the survey area but within the GWA. Seabed samples will also be collected over the site survey area, including pipeline route, and photographic monitoring will also be undertaken. The environmnetal survey is expected to take approximately 25 working days.

 

The Co-ordinates provide below are for the geater working area (GWA).

 

The Survey will be undertaken by the Fugro Searcher, Call sign C6EI5 and IMO Registration number 9504011.

See detailed map on our bulletin website

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Subsea Recovery - Victoria Wellhead Protection Structure (block 49/17a)



Following wet store of the Victoria wellhead protection structure (WHPS) (area of approx. 25m x 25m), and on behalf of the Licence Operator (NEO Energy), the WHPS will remain in situ and now be recovered by Offshore Construction Vessel (name & call sign is TBC), during April 2024. (Further update will be provided later in Q1 2024). Guard vessel, GV Jacoba (call sign GCVA) will be on location during this time.


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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 - Prospector 1



This oil & gas drilling rig has moved to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Well Plugged and Abandoned - Hamilton North



It is planned that the 'Valaris' Rig will move from 'Lennox' to 'Hamilton North' for Well Plugged and Abandoned works.


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Clair CRX Geophysical Survey



Multi role Survey Vessel "Fugro Venturer" shall acquire geophysical survey and shallow geotechnical investigations south / southwest of Clair Ridge Platform as per the Greater Working Area.


Geophysical survey comprises the following plus transits from / to Aberdeen

1. AUV survey, whereby the AUV flies at around 15m above seabed along programmed lines and the vessel follows the same track above the AUV (10 days work including weather)

2. High res Seismic survey comprising a single streamer of 700m length towed at 3m depth and fitted with a tailbuoy with light and radar reflector (10 days work including weather)

3. Very high res Seismic Survey comprising 4 x 70m length streamers towed immediately behind the vessel, this work is mostly close to Clair Ridge Platform (10 days work including weather) 

4. After a Port Call in mid May the vessel will then acquire shallow Geotechnical CPT and Vibrocore sampling within the working area (approx 14 days work including weather)

See detailed map on our bulletin website

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Geological, Topographical and Shallow Gas Hazards Survey - Bruce Infill Well



Serica Energy intends to conduct survey at the Bruce Field - The survey operations are to determine the seabed conditions at the well locations and identify any geological, topographical, shallow gas hazards or environmental conditions which could impair the satisfactory emplacement of a drilling rig at the defined locations.


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Ground Moorings - Schiehallion North West



Eight mooring ground chain and pennant sections remain in place until further notice, at the below noted locations in the Schiehallion NW field. There are no surface buoys or mid-water sections.


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Pre-Installation Pipeline Route Survey - East Irish Sea



Please be advised that Spirit Energy has contracted the Gardline - operated Kommandor multi-role survey vessel to undertake a pre-pipeline installation route survey of a corridor between the west coast of Walney Island, Barrow-in-Furness and the DP1 platform; and the DP1 platform and the DPPA-1 platform, east Irish Sea. DP1 and DPPA-1 are located in the South Morecambe, and the North Morecambe gas fields respectively.


The survey, which will traverse portions of UKCS blocks 113/29, 110/2, 110/3, 110/4 and 110/8 will employ a range of geotechnical, geophysical, and environmental surveying/sampling techniques.

 

The activities are scheduled to take approximately 28 days to complete comprising 22 days of operational surveying, an allowance of 5 days weather downtime, and 1 day spent in-field transiting.

See detailed map on our bulletin website

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Rig - Deepsea Aberdeen



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Linus



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Drilling Activity - COSL Innovator at Bittern B1 - ST#1



The COSL Innovator (semi-submersible) will be conducting drilling operations in the Bittern field on the B1 - ST#1 well. This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone. Location of anchors and COSL Innovator have been included. 

See detailed map on our bulletin website

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Tern - Subsea Infrastructure Disconnection



Dive Support Vessel (DSV) work shall be ongoing at and around Tern Alpha platform and satellite fields. The DSV shall be carrying out works to flush and disconnect subsea pipelines at Kestrel Falcon, Hudson and Cladhan subsea fields.


Work shall commence at or proximate to the following locations:

 

Location

Northing

Easting

Tern Alpha

 

 

Platform

61° 16’ 31.82”

00° 55’ 03.83”

Kestrel

 

 

P1 XT

61° 18’ 34.47”

01° 02’ 30.64”

P2 XT

61° 18’ 35.25”

01° 02’ 31.83”

W1 XT

61° 18’ 35.67”

01° 02’ 34.70”

Falcon

 

 

P1 XT

61° 19’ 50.04”

00° 59’ 28.06”

Hudson

 

 

Hudson Manifold

61° 15’ 08.28”

00° 44’ 01.58”

L1 XT

61° 15’ 37.14”

00° 42’ 26.83”

L2 XT

61° 15’ 36.73”

00° 42’ 26.38”

Cladhan

 

 

Cladhan Manifold

61° 08’ 52.59”

00° 47’ 09.03”

See detailed map on our bulletin website

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Rig move - Irish Sea Pioneer



ISP Rig Move Notification. Planned Rig Move from Douglas Wellhead platform(Liverpool Bay) to Lennox Platform ( Liverpool Bay)


This oil & gas drilling rig is moving to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

See detailed map on our bulletin website

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Surveys at the UMC and Pelican Field



Surveys at the UMC and in the Pelican Field are proposed to comprise of geophysical surveys, with a survey area expanding over 4.12 km x 4.10 km for the Pelican Field and 4.16 km x 4.03 km for the UMC. The surveys will acquire SBES (single beam echosounder), MBES (multibeam echosounder), HMP (hull mounted sub bottom profiler), SSS (side scan sonar), and magnetometer data.


Surveys at the UMC and in the Pelican Field are proposed to comprise of geophysical surveys, with a survey area expanding over 4.12 km x 4.10 km for the Pelican Field (Figure 2.1) and 4.16 km x 4.03 km for the UMC.

Geophysical data acquisition will include SBES, MBES, HMP, SSS, and magnetometer. The acquisition of geophysical surveys in the NNS is expected to commence in Q2 of 2024, and will include:

A total mobilisation of 24 h;

A total geophysical acquisition of 20 days, based on:-

          UMC including approx. 208 survey kms / 53 lines turns / 2.6 days

          Hudson including approx. 339 survey kms / 65 lines turns / 3.8 days

          Otter including approx. 208 survey kms / 53 lines turns / 2.6 days

          Cladhad including approx. 208 survey kms / 53 line turns / 2.6 days

          Pelican including approx. 208 survey kms / 53 line turns / 2.6 days

          Falcon and Kestrel approx. 548.6 survey kms / 83 line turns / 5.8 days

and A total demobilisation of 12 hours.

The line spacing for the Pelican Field and the UMC will be 100 m for main lines (with additional lines through well locations) and 400 m for cross lines.

The seabed and shallow soils survey areas have been designed to allow a minimum of 2 km distance away from any well location in any direction.

See detailed map on our bulletin website

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Survey at Otter Field



Proposed geophysical surveys of the Otter Field will cover a survey area of 4.02 km x 4.01 km.


Proposed geophysical surveys of the Otter Field will cover a survey area of 4.02 km x 4.01 km.

The surveys will acquire SBES, MBES, HMP, SSS, and magnetometer data. The acquisition of geophysical data in the NNS is expected to commence in Q2 of 2024, and will include:

     A total mobilisation of 24 h;

     A total geophysical acquisition of 20 days, based on

               UMC including approx. 208 survey kms/53 lines turns/2.6 days

               Hudson including approx. 339 surveys kms/65 lines turns/3.8 days

               Otter including approx. 208 survey kms/53 lines turns/2.6 days

               Cladhad including approx. 208 survey kms/53 line turns/2.6 days

               Pelican including approx. 208 survey kms/53 line turns/2.6 days

               Falcon and Kestrel approx. 548.6 survey kms/83 line turns/5.8 days;

     A total demobilisation of 12 hours.

The line spacing for the Otter Field will be 100 m for main lines (with additional lines through well locations) and 400 m for cross lines. The seabed and shallow soils survey areas have been designed to allow a minimum of 2 km distance away from any well location in any direction.

See detailed map on our bulletin website

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Survey at Hudson, Falcon, Kestrel and Cladhan



Surveys in the Hudson Field, Falcon Field, Kestrel Field and Cladhan Field are proposed to comprise geophysical surveys, with a survey area expanding over 5.46 km x 4.86 km for the Hudson Field, 6.80 km x 6.30 km for the Falcon Field and Kestrel Field, and 4.04 km x 4.03 km for the Cladhan Field.


Surveys in the Hudson Field, Falcon Field, Kestrel Field and Cladhan Field are proposed to comprise geophysical surveys, with a survey area expanding over 5.46 km x 4.86 km for the Hudson Field, 6.80 km x 6.30 km for the Falcon Field and Kestrel Field, and 4.04 km x 4.03 km for the Cladhan Field. 

 

These surveys in the Hudson, Falcon, Kestrel and Cladhan Fields, are part of a wider geophysical surveys campaign in the NNS. Geophysical data acquisition will include SBES, MBES, HMP, SSS, and magnetometer. The acquisition of geophysical surveys in the NNS is expected to commence in Q2 of 2024, and will include in total:

     A total mobilisation of 24 hours;

     A total geophysical acquisition of 20 days, based on:

               Underwater Manifold Centre (UMC) including approx. 208 survey kms / 53 lines turns / 2.6 days

               Hudson including approx. 339 survey kms / 65 lines turns / 3.8 days

               Otter including approx. 208 survey kms / 53 lines turns / 2.6 days

               Cladhan including approx. 208 survey kms / 53 line turns / 2.6 days

               Pelican including approx. 208 survey kms / 53 line turns / 2.6 days

               Falcon and Kestrel approx. 548.6 survey kms / 83 line turns / 5.8 days; and

     A total demobilisation of 12 hours.

The line spacing for the Hudson Field, Falcon Field and Kestrel Field, and Cladhan Field will be 100 m for main lines (with additional lines through well locations), and 400 m for cross lines. The seabed and shallow soils survey areas have been designed to allow a minimum of 2 km distance away from any well location, in any direction.

See detailed map on our bulletin website

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Geotechnical survey in-situ Cone Penetration Testing block 42/14



Geotechnical survey in-situ Cone Penetration Testing block 42/14 using MV Geoquip Elena.


Site investigation to acquire adequate geotechnical data that will allow for reporting of soil parameters supporting a typical spud can penetration analysis. Data will be collected in-situ by performing Cone Penetration Test (CPT) testing at up to three locations, down to a depth of 30m, situated within 100m of the proposed well location. The MV Geoquip Elena vessel is anticipated to be working on location for up to four days.

See detailed map on our bulletin website

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Rig - Scarabeo 8



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Noble Integrator



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Noble Innovator



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Well Plug and Abandonment activities - Sean Romeo 500 MZ



Prospector 1 to move and locate on the Sean Romeo Block 49/25 for Well Plug and abandonment activities for approx 90 days


The Prospector 1 is a Non-Production Installation (MODU jack-up) which will be cantilevered over the Sean Romeo well bay.

It will be on location approximately 90 days during which time ONE-Dyas will be utilising the Prospector 1 for accommodation and completing plugging & abandoning of the wells on the SEAN Romeo platform. It will be towed to the location by three tugs, pulled into final position on anchors and jacked up (air gapped) as per the rig move and positioning program. A dedicated Emergency Response & Rescue Vessel (ERRV) will guard the 500 m safety zone. The Prospector 1 is equipped with navigational aids and lighting, AIS, radio and 24/7 manned radio room. To prevent confusion it is proposed that Romeo Navigation aids will be turned off, and Prospector 1 navigation aids will be used.  

See detailed map on our bulletin website

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Rig - Noble Resolve



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Light Well Intervention Vessel Project - Bruce Field



Serica Energy (UK) Ltd (Serica) are looking to perform a well intervention campaign on the Bruce phase two Western Area Development (WAD) and Keith gas condensate fields. It is planned that using the Helix Well Enhancer Light Well Intervention Vessel (LWIV) will perform well intervention services at wells Bruce WAD 9/08a-B6(M5), (possibly) 9/08aB3Z(M4) and Keith 9/8a-K01(K1) (formerly 9/8a14).


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Open WHPS roof panels at the North West Bell field



The roof panels on the Wellhead Protection Structure (WHPS) at the North West Bell location are currently in an open position. The WHPS is within the existing 500m zone.


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Subsea Well Plugging & Abandonment - Banff, Kyle, Strathspey, Lyell, Ninian and Columba E Fields



Vessel-based subsea well plugging and abandonment, including the use of explosives for wellhead conductor severance, and recovery of wellheads from the seabed. Activities are to be carried out across the Banff, Kyle, Strathspey, Lyell, Ninian and Columba E fields.


CSV / AHV Island Valiant (c/s JWMY) is planned to mobilise on 26th March for a 65-day campaign.

See detailed map on our bulletin website

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Subsea Decommissioning - Banff & Kyle



DeepOcean vessels will be completing subsea decommissioning activities, including rock placement, at the Banff and Kyle fields, adjacent to the decommissioned Curlew field and adjacent to the CATS T5 location. Scopes are to be carried out mainly inside existing subsea 500m Safety Zones, but some scopes will be completed out-with these zones.


CSV Normand Jarstein is due to mobilise on 28th March for a 38-day campaign of decommissioning work.

CSV Dina Star is due to mobilise on 8th May for a 23-day campaign

CSV Normand Jarstein is due to mobilise on 16th July for a 61-day campaign

CSV Edda Freya is due to mobilise on 25th September for a 5-day campaign

FPV Stornes is due to mobilise for subsea rock installation mid-April for a 14-day campaign, and again in October for a 14-day campaign.

See detailed map on our bulletin website

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Safety Zone position: "Clair Tee, Magnus EOR Development" (CORRECTION)



Please note that FishSAFE information for plotter systems and FishSAFE Alarm Units for the "Clair Tee, Magnus EOR Development" Safety Zone IS CORRECT. A notice from Wednesday 1 November 2023 stating otherwise, has been found to be incorrect. To confirm, the information on FishSAFE is correct and the centre of the safety zone is as below:


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Rig Move - V120 to Judy Riser Platform



Harbour Energy plan to move the V120 Jack-Up drilling rig from the Talbot open water location to the Judy Riser Platform location in block 30/07a to perform a drilling campaign on three wells. The Judy installations have a dedicated Emergency Response and Rescue Vessel (ERRV) on location monitoring the surrounding area.


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Inspection and Survey - Liverpool Bay Asset



To support the jack up operations there is required to be a geophysical survey and an environmental survey at the P&A locations prior to the jack up performing the operations. Geophysical surveys were performed in 2024 covering all locations. Additional surveys are required this year for data validity and are indicated below.


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Diving work on 52/5a Platform, all SS wells in the Hewett Field



DSV Topaz will be conducting diving and ROV operations at the Hewett field. Activities will be diving at installation 52/5A and all 7 SS wells. the duration of the project is 30-60 days.


Diving and ROV activities.

Onboard ENI Rep; ryan.phipps@external.eni.com 

See detailed map on our bulletin website

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Rig Move - Ensco 92 to Crossans



Harbour Energy plan to move the Ensco 92 Jack-up drilling rig from the Millom West platform location to the Crossans field location to perform abandonment operations on the 110/02b-10 subsea well. Throughout the well abandonment operations there will be a dedicated Emergency Response and Rescue Vessel (EERV) on location monitoring the surrounding area.


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Rig - Deepsea Atlantic



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Shelf Drilling Winner (ex Noble Sam Turner)



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Well Safe Protector



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Ocean Endeavor Anchor Spread - Penguins - Pan NW



The Ocean Endeavor will be drilling a development well at Pan NW at the Penguins field, Northern North Sea. This will have 12-line mooring spread, extending out up to 1.5km from rig positioning. The activity will last ~3months from March through to June.


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Rig - 590021



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Decommissioning/IRM Activities 2024 - Central North Sea & Southern North Sea



The DSV Boka Da Vinci will be completing decommissioning activities at SNS, Murdoch/CMS III, Johnston , Balmoral and MacCulloch, and IRM activities at Callanish. The Boka Polaris will be undertaking IRM work at NW Seymour


The DSV Boka Da Vinci is due to mobilise in Sunderland on 1st March to undertake a 220 day offshore campaign to execute the IRM and Central North Sea and Southern North Sea Decommissioning Scopes. The vessel will be working at SNS, Johnston, Murdoch, Balmoral, and MacCulloch 500m safety zones. Upon completion of the offshore campaign, the vessel will demobilise in Sunderland.

 

The Boka Polaris will mobilise circa 26th March for a 7 day scope at NW Seymour.

See detailed map on our bulletin website

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Subsea Obstruction - North East of the Southwark platform



Scour Conditions have created a protruding section of the export pipeline 100 metres North East of the Southwark platform


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Rig - Maersk Innovator



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Metocean Buoys - Victory Development Area



1x metocean buoy and 1x metocean buoy mooring floating in the water column at the Victory development area. Submerged buoy is 18 m above seabed. Note that surface buoy mooring can move up to 150 m around deployment location. Note that moorings are not visible on the surface.


Surface buoy mooring (Western most):

WGS84: Lat: 60° 59' 11.52"N, Long: 01° 54' 06.96"W

Mooring: 3000 kg steel balast with chain

Buoy diameter: (not connected)

 

Submerged buoy (Eastern most)

WGS84: Lat: 60° 59.196' N, Long: 01° 53.709' W

Water Depth: 145.9 m

Mooring: 500 kg steel balast with chain

Buoy diameter: 1 m

See detailed map on our bulletin website

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Rig - Paul B Loyd Junior



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Noble Reacher (ex Maersk)



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Noble Resolute (ex Maersk Resolute)



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Topside Removal - Amethyst A1D



ERDA Jackup Barge will come alongside Amethyst A1D to remove the topside. The Jacket will be retained.


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Wellhead structure on location which could present a hazard to other sea users



The wellhead structure extending above the seabed is a snagging hazard. Note, details are included in FishSAFE and guard vessel will vacate location on 16th February.


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Rig - Seafox 2



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Swift 10



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig Move - COSL Pioneer



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Well Intervention Project - West Sole Charlie



The Petrodec HAEVA will be positioned at the West Sole Charlie (WSC) installation for a Well Intervention Project.


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Rig - Valaris Gorilla VI



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Well Operations - Stena Don Arran Field



Notification of rig operations at Arran field with the Stena Don


Note:

The anchors anchors are connected to the rig via mooring lines.

The anchors and morring lines extend outwith the rig 500m zone.

See detailed map on our bulletin website

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New Wells on Seabed - Captain Field Drill Centre D



Three new wells have been installed at the Captain Field, Drill Centre D. The well (i.e. xmas tree) height above the seabed is approximately 6m. Mud mattress geometry is approximately 6m x 3m x 0.15m (height).


Drawing 'CP1913-7000-D101' details concrete mattress. 

Drawing 'CER-PGEN-TEC-LAY-TEC-0000-00004-00_K02_1' details 3 new wells and their coordinates. 

See detailed map on our bulletin website

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Subsea Decommissioning - Durango



The Durango subsea well and associated infrastructure will be decommissioned between July and September 2024. The HAEVA Jackup Barge will be on location to facilitate the decommissioning activity.


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Valaris V121 over Shearwater Alpha



Valaris V121 MODU jack-up rig will be situated over Shearwater Alpha platform. Duration Valaris V121 MODU will be on location estimation 730 days.


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Rig - Askepott



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - West Phoenix



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Valaris 72



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig - Well-Safe Guardian



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Valaris Norway LBA



Valaris Norway will be on site from the 1st Jan in Liverpool Bay, 1400m exclusion zone. P&A of SS well 110-15 6z -  1400m exclusion zone in force 


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Rig - Noble Invincible



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Rig Move - PBLJ MODU at Callanish



Notice to alert sea users to drilling and completion operations at the Callanish 15/29b-FQ subsea development well location, using the PBLJ MODU.


The PBLJ semi-submersible drillling rig is due to move to the Harbour Energy 'Callanish' subsea development location at the end of December to comence drilling and completion operations on the 15/29b-FQ development well.  

See detailed map on our bulletin website

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Rig Move - Noble Intrepid at Judy



Notice to alert sea users of the planned location of the Noble Intrepid jack-up MODU alongside the Judy production installation in block 30/7a.


The Noble Intrepid jack-up MODU will be locating alongside the Judy production installation in block 30/7a to provide accommodation and perform well intervention work.

See detailed map on our bulletin website

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Rig - Noble Intrepid



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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PL24 Cut-point Freespan



The cut-point of PL24 has become exposed and is protruding significantly from the seabed; approximately 17m long and 6m high. This creates an increased risk of snagging of trawling equipment, or similar, compared to a regular freespan.


The cut-point of PL24 has become exposed and is protruding significantly from the seabed; approximately 6m from the seabed at its highest point and overhanging approximately 17m long from where the line makes contact with the seabed again. This creates an increased risk of snagging of trawling equipment, or similar, compared to a regular freespan.

See detailed map on our bulletin website

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Foinaven Buoyant Risers



As per a previous notification (Sep 2022), the Petrojarl FPSO has been removed from the Foinaven field. 13 risers remain on site, with buoyant sections located up to 160m above the seabed. A recent check confirmed riser location and height has not changed, but they remain a snagging hazard. 3 new Statutory Instrument 500m safety zones replace the original FPSO safety zone - visible on Admiralty charts and Fishsafe. The zones fully encompass all buoyant risers, and remaining seabed assets.


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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. 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, cut into the clay seabed.

See detailed map on our bulletin website

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Platform Decommissioning - Cavendish and Windermere platform



The Cavendish and Windermere platforms are being removed from the Southern North Sea. A heavy lift vessel and associated anchor handing vessel and emergency response vessel will be present within the Cavendish and Windermere 500m zones from as early as the 10th October. The operations will involve the heavy lift vessel going between the two platform locations and The Netherlands.


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Metocean buoy - Pierce Area



A spherical wave buoy with a diameter of 0.9 meters was installed at Pierce Field on August 29th.


Colour: yellow

Shape: spherical

Diameter: 0.9m

 

The lantern has a flash sequence Fl (5) Y 20s. Please maintain a 200m exclusion around the buoy.

See detailed map on our bulletin website

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Rig - Valris 72



This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.


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Shearwater IWA well (22/30b- 18) - 30" Conductor stump



The Shearwater IWA well has been left in a suspended status with the 30" conductor including a debris cap protruding from the seabed approximately 8ft. This is a snagging risk and vessels are advised to remain a safe distance clear.


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Drilling activity - Valaris 122 at Jackdaw



The Valaris 122 (jack-up drilling rig) will be conducting drilling operations at the Jackdaw field on the 30/2a-JD02, JD03, JD05, JD06 wells. The Valaris 122 will be drilling through the newly installed Jackdaw platform on a four well campaign. The total duration of drilling and completion activities is expected to last approximately 538 days.


Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

See detailed map on our bulletin website

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Rig Move - Shelf Drilling Fortress (Invergordon to Golden Eagle)



Please be advised that the Shelf Fortress heavy-duty jack up drilling rig is planned to move from Invergordon Anhcorage No.10 to the Golden Eagle Field on 16th August 2023. This notice is to provide notification of the planned rig move and anchor positions at final location. This notice will remain live until anchors are recovered.


The Shelf Drilling Fortress will be positioned alongside the Golden Eagle platform with a rig heading of 335.9 degrees. The planned anchor positions are as below:

 

1. Starboard-Forward: 623 558 E, 6 427 414 N, 850m line length from fairlead

2. Port-Forward: 622 443 E, 6 426 873 N, 850m line length from fairlead

3. Starboard-Aft: 624 075 E, 6 426 308 N, 795m line length from fairlead

4. Port-Aft: 622 991 E, 6 425 783 N, 795m line length from fairlead

 

 

 

See detailed map on our bulletin website

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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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ILI Activation Tool - Snagging Risk



Installation of two ILI Activation Tools on the Main Oil Line (MOL) was completed on 12/07/2023 by a dive support vessel (DSV). The tool is a small structure that will go around the Main Oil Line (MOL) and will remain in place until October 2024. This will be a snagging hazard for nets and trawlers.


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