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Installation of a new drill centre manifold and riser base structure - Abigail Project
A new drill centre manifold and a new riser base structure will be installed as part of the Abigail project. The Abigail drill centre is 12km west of the existing Stella MDC manifold. The riser base structure will be installed at the existing FPP-1 floating production facility.
As part of the Abigail project we will be installing a two slot drill centre manifold (piled) and a riser base structure (gravity based) containing an SSIV. The current project schedule indicates that the installation workscope is due to commence offshore in early May 2022. The coordinates of the planned locations for the structures is summarised below. The Abigail drill centre is 12km west of the existing Stella MDC manifold. The riser base structure will be installed at the existing FPP-1 floating production facility.
Due to the associated increased inventory entering the Greater Stella Area production flowline system from Abigail a subsea isolation valve (SSIV) is also required at the FPF-1, therefore the project includes the retrofit installation of a production riser base structure (containing an SSIV) and a rigid tie-in spool in between the static and dynamic sections of the flexible production flowline (at the FPF-1). Controls to the production riser base will be provided via a jumper from the existing Stella umbilical riser base. The riser base will be installed during the same campaign as the manifold installation, and will be tied in as part of the DSV campaign in August.
The structure installation is due to commence 2nd May (mobilisation) and complete by 11th May (demobilisation). The infield dates for installation of the structures are scheduled to be the 4th and 5th, and then the 10th and 11th for piling of the manifold.
See detailed map on our bulletin website
Subsea Pipeline Activities - Pickerill
Perenco Gas UK Ltd is planning to cut and remove the decommissioned Pickerill A and Pickerill B pipeline ends. All pipeline operations are to be undertaken within the Pickerill A and Pickerill B 50 m safety zones. The Maersk Achiever will mobilise from the port of Blyth in the UK on the 1st July for a 10 days campaign
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Ocean Endeavor Rig - Pan West Well
The Ocean Endeavor rig will be drilling the Pan West Well in the Penguins fields. The will be moored with 12 anchors. Some of these anchors extend outside of the rig 500m exclusion zone.
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Kyle South well P&A works
Pre-lay of anchor pattern around Kyle South using vessel Loke Viking (16-21 May 2022). Guard vessel on location following anchor installation, until arrival of rig. Rig Well Safe Guardian arrival 28 May 2022. 8-anchor pattern extending approx 1500 metres from planned rig location. Mk. 6 Stevpris anchors, 500 metres of ground chain & 180 metre pennants.
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Dive Vessel Seven Kestrel
Subsea 7, on behalf of IOG, will be installing a pipeline from the Southwark pipeline to the existing Thames pipeline. The dive vessel Seven Kestrel will be supporting this work.
The dive vessel Seven Kestrel will be installing spools at the Southwark platform and the connection point with the Thames pipeline. Work will also be undertaken on the mechanical connector at the 24-inch manifold on the Blythe pipeline connection point. Some protection work will also be undertaken on the umbilical at the Blythe platform.
See detailed map on our bulletin website
Geotechnical Surveys at Kelham, Goddard and Nailsworth
Geotechnical survey vessel is being mobilised to acquire shallow soils information to enable the safe siting of a drilling rig.
During May/June 2022 the Geoquip Saentis, on behalf of IOG PLC, will undertake a geotechnical site survey prior to undertaking appraisal well drilling at both its Kelham and Goddard appraisal sites, and at the proposed Nailsworth development.
The geotechnical work will consist of a 50m borehole and a number of 35m CPTs.
The survey work is expected to take two to three days on each site. The vessel is scheduled to commence mobilisation circa 22nd May 2022.
See detailed map on our bulletin website
Southwark to Thames Pipeline Installation Operations
IOG PLC will be installing a 24 -inch diameter gas pipeline in the southern North Sea from the Southwark Gas Field to a tie-in point on the existing Thames pipeline.
The installation will be performed from the DP vessel Seven Borealis, expected to be on site 4th June to 11th June.
Call-sign: C6YG8
IMO: 9452787
Length and breadth: 182m x 46m
The vessel will be deploying a pipeline, which will restrict its ability to manoeuvre. It is requested that all vessels operating within the area keep a safe distance (500m) and pass at reduced speed.
Operations will be conducted on a 24-hour basis.
Throughout the operations the vessel will be displaying the shapes and lights prescribed in the International Rules for the Prevention of Collisions at Sea (COLREGS) Rule 27, (Vessels not under command or restricted in their ability to manoeuvre).
Prior to the pipelay operation, the Anchor Handling Tug Siem Pearl will deploy the initiation anchor and pull wire.
The anchor and pull wire will be within the combined 500m safety zone of the Southwark Platform and the Nobel Hans Duel drilling rig.
Siem Pearl details:
Call-sign: LDZH
IMO: 9417684
Length and breadth: 91m x 22m
The anchor is expected to be deployed around 20th May and recovered around 3rd July.
See detailed map on our bulletin website
Environmental & Geophysical survey - Rosebank
A 35 Day Environmental and geophysical survey to be carried out using the Edda Flora call sign: LAJW3 between 6th April - 11th May 2022
The Survey vessel Edda Flora will be used as main vessel and operational platform for all following activities:
- Environmental seabed sampling survey in the Rosebank Field area and along the future Gas Export rout to Clair Tee on the West Of Shetland Pipeline WOSP system
- Geophysical survey using ROV as the general survey sensor platform in the Rosebank Field area, along the future Gas Export route between the Rosebank Field and Clair WOSP and along a future possible Power from shore cable route from Clair Tee at WOSP toward St. Magnus Bay, Shetland and alternative cable route option towards Yell
- Metocean equipment recovery activity related to previously installed seabed moorings, lines and Metocean current metering equipment
The vessel will have limited manoeuvrability during survey operations due to operation of subsea equipment such as environmental sampling equipment and ROV which will be in operation at water depths down to approximately -1050m.
The current schedule is indication start activity 6-10 April 2022 in the Rosebank field.
The duration of the activities is estimated to 30-35days including some weather and breakdown contingency
See detailed map on our bulletin website
Rig - Seajacks Leviathan
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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COSL Pioneer MODU - Captain Field
COSLPioneer MODU will be drilling in the Captain field for Ithaca Energy for approximately 128 days, with the anchors being pre-laid approximately two to four weeks prior to the rig arriving onsite. Activity will take place from 16th May until 14th November 2022.
Ithaca Energy (UK) Ltd is planning to use the COSLPioneer to drill UB05P well and suspend A2Y at Captain Drill Centre C. The activity will last approximately 150 days (including anchor pre-lay). The Captain platform ERRV will act as a guard vessel at the location from when the anchors are pre-laid until the COSLPioneer arrives.
The field lies within the United Kingdom Continental Shelf (UKCS) Block 13/22a, approximately 91 km North of Aberdeen and 191 km from the UK/Norway median line.
See detailed map on our bulletin website
Anchor Pre-Lay at Ettrick Location
Normand Prosper AHV to pre-lay 8x anchors at Ettrick Location. 8x anchors will be laid in the Ettrick field, prior to rig mobilisation forecast for 14th May. 8x anchors will remain laid for Ettrick campaign.
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COSL Innovator - Ettrick P&A Campaign E5
COSL Innovator to anchor at Ettrick and commence field P&A campaign. The COSL Innovator will mobilise to Ettrick from Agotnes, Norway and hook up to the pre-laid anchors at the Ettrick location. It will commence work at the Ettrick E5 well location.
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B-Block Decommissioning - CSV Activities - Balmoral Phase 2 Decommissioning
CSV Seven Oceanic is due to mobilise in Peterhead on 12th May 22 to undertake a 35 day offshore campaign to execute the Balmoral Phase 2 Decommissioning Scope. The vessel will be working at Balmoral, Brenda and Nicol 500m safety zones. Upon completion of the offshore campaign, the vessel will demobilise in Peterhead.
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Drilling - Diadem Exploration Well
Capricorn Energy UK Ltd are drilling the Diadem exploration well using the Valaris 123 jack-up rig.
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Polymer Injection Flowline Installation - Captain EOR
A polymer injection flexible flowline will be installed between the Captain BLPA and the Captain Area B UTM structure (well b28). As part of the Captain EOR Stage 2 project a new 6" polymer injection flowline will be installed. It will be installed between the Captain BLPA and the Captain Area B UTM structure (well b28). The flowline will be installed from a construction vessel and will be jet trenched for protection using ROV.
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Rig Move - 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 - Ocean Patriot
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 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 - Maersk 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 - Prospector 5
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 Norway
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 92
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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Survey - Firth of Clyde - Dunoon and Ardbeg gas pipelines
Marine survey operations are due to take place on the existing undersea gas pipelines near to Dunoon and Ardbeg in the Firth of Clyde. The survey operations are due to start in May 2022 and are expected to last approximately 20 days.
Survey work
Survey operations along the pipelines will be carried out by the vessel Mersey Discovery. Survey operations will involve the use of both hull mounted equipment and towed sub-surface equipment which may extend up to 200m behind the vessel. The survey is due to start on the 14th May 2022 and to last for up to 20 days, subject to weather and sea conditions.
The purpose of the survey is to examine the extent of burial and exposure of these pipelines along their route, identify any freespans, and to monitor the condition of the pipeline.
Vessel details
The Mersey Discovery is an 11.5m Redbay RIB with a grey superstructure. The vessel details, including details on its current location can be accessed at the Marine Traffic website using the link below:-
- Mersey Discovery: survey vessel | Call sign MJIA2
During survey work the vessel will be restricted in the ability to manoeuvre. It will display the appropriate day shapes and lights. The vessel will actively transmit an AIS signal. Survey speed will be around 3-4 knots.
Mariners are requested to give the survey vessel a wide berth and pass at a slow speed during these operations.
Location
A map showing the location of the survey work is provided in the Notice to Mariners that can be downloaded here. The approximate landfalls of each pipeline are provided below for reference.
See detailed map on our bulletin website
Pipeline Installation - Evelyn Field
Tailwind Mistral Ltd intends to install pipelines and umbilicals from the existing Evelyn Well EV01 to the GEEBB Manifold and the Triton riser base, this will comprise: 8" production line with 3" piggyback gas lift line, Control umbilical line.
The Evelyn field is located within UK licence P1792 approximately 7.5km to the South West of the Dana Operated Triton FPSO. The development will consist of a single gas lifted production well EV01.
The 8" Pipeline route runs from the Evelyn valve skid (EVVS) drill centre tie-in structure in a north east direction to a comingling tie-in structure (GEEBB) which will comingle production fluids from Gannet E, Evelyn and Bittern. The GEEBB structure will be located outside the Triton swing circle, but inside its 500m safety zone. The 8-inch pipeline will be trenched and buried using trench backfill material. Areas which are not trenched at the Evelyn and Triton approaches will be protected from fishing gear interaction and/or dropped objects by a combination of rock placement and concrete protection mattresses.
The 3" Pipeline route runs in a south westerly direction between the GEEBB tie-in and distribution structure to the Evelyn valve skid (EVVS) drill centre tie-in structure. The GEEBB structure will be located outside the Triton swing circle but inside its 500m safety zone. The 3-inch gas lift pipeline will be piggybacked to the larger 8-inch production pipeline and will be trenched and buried using trench backfill material. Areas which are not trenched at the Evelyn and Triton approaches will be protected from fishing gear interaction and/or dropped objects by a combination of rock placement and concrete protection mattresses.
The 9.5 km control umbilical will be installed from the EVVS to the umbilical riser base at Triton FPSO. The umbilical will contain a total of 16 cores and will provide hydraulic, electrical and chemical supplies from the Triton dynamic umbilical at riser base SY9516A to the EVVS and wells
See detailed map on our bulletin website
Completion of Platform Decommissioning Activity - Ketch Field (44/28) and Snagging Hazard
Ketch platform decommissioning completed and the Sleipnir Heavy Lift Vessel has left the area (05:35 BST on 22nd April 2022). Snagging hazard remains and an EERV / Guard vessel will be on-station until July 2022 when the riser stub will be removed as part of the DNO North Sea Limited Pipeline decommissioning operation. Please also note that an 18” riser stub remains protruding approximately 1.5m above seabed level close to the platform location.
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Site Survey - Shearwater A & Gannet F Rig Site
Shell UK plans to conduct a rig site survey at each of the Shearwater A and Gannet F locations within the central North Sea. The surveys shall be conducted by the MV Ocean Reliance utilising vessel-mounted and towed sensors from 4th May 2022 until 20th May 2022.
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22/19a Birgitta appraisal well sub sea dome (suspended well)
Appraisal well drilled at location in Q1 2022. The well is suspended for future development & outfitted with a subsea dome. Once drilling of the Birgitta appraisal well is complete, it will be left suspended. A single wellhead and WHPS will be left on the seabed and the Maersk Resilient MODU will depart. A 500m safety exclusion zone will be designated around the suspended Birgitta appraisal well. The suspended well phase will last for approx. 1 or 2 years before further development.
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Rig - Well-Safe Guardian
Notice to alert sea users to P&A activity within the Buchan and Hannay fields using the Well-Safe Guardian MODU in Block 20/05. 20-05a-10Y (J2) well 20/05c-8X (H01) well 20/05c-9 (H02) well
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Pre-Lay Anchor pattern Well-Safe Guardian at Hannay H01 Well
Please be advised that Well-Safe Solutions, on behalf of Repsol Sinopec Resources UK propose to place moorings on the sea-bed at the Hannay Field from 25/01/22 in advance of the mooring of the Semi-submersible Rig Well-Safe Guardian.
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Pipeline Deposit Activities in Former Thames & Guinevere Platform Area & PL23/PL24 Remediation
Van Oord Marine Services B.V's Nordnes will be completing a deposit campaign in the former Thames, Guinevere platform area and remediation to pipeline PL23/PL24.
The Nordnes is leaving from Skipavika, Norway on 4th May for a 14 day rock placement campaign on behalf of Perenco UK and Tullow Oil.
See detailed map on our bulletin website
Rig - Maersk 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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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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Huntington Decommissioning – CSV Activities – Mooring Suction Anchor Recovery
CSV Boa Sub C is due to mobilise in Sunderland on 4th May ’22 to undertake approx. a 21 day campaign to execute the recovery of five (5) remaining suction anchors which were once used to moor the Voyageur Spirit FPSO – now off station. The vessel will be working in the former FPSO anchor pattern.
CSV Boa Sub C is due to mobilise in Sunderland on 4th May ’22 to undertake approx. a 21 day offshore campaign to execute the recovery of five (5) remaining suction anchors which were once used to moor the Voyageur Spirit FPSO – now off station. The vessel will be working in the former FPSO anchor pattern. On successful recovery of three suction anchors, the vessel will depart field to carry out an interim port call to offload in Blyth, before it will return to field to collect the remaining two suction anchors, returning to Blyth / Sunderland to demobilise.
See detailed map on our bulletin website
Rig - 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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Well Intervention - Bittern A2
Dana intends to carry out a well intervention on the Bittern A2(PA) well. The well intervention will be executed from the Well Enhancer Light Well Intervention Vessel (LWIV) during May 2022. All chemical discharges will be within the 500 m exclusion zones of the Bittern DCA manifold.
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DSV/CSV Campaign 1 : Forvie Umbilical Installation & Tie-In
Seven Kestrel (Call Sign: 2HDM7) will be carrying out umbilical installation and tie-in and IRM (Inspection, Repair & Maintenance) work between and at the location noted below. These works will be undertaken on 16th May 2022, for approximately 7 Days.
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Subsea Structure - Gannet E Tie-In Valve Skid (GETVS)
Tailwind Mistral Ltd intends to install the Gannet E Tie-In Valve Skid at the Gannet E Field
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Pipeline Installation - Gannet E Expansion
Tailwind Mistal Ltd intends to install pipelines between the Existing Gannet E Manifold (GEM) to the new Gannet E Tie-in Valve Skid (GETVS) and a 9" production line between the GETVS to the GEEBB Manifold.
Pipeline route runs from the Gannet E Tie in Valve Skid (GETVS) structure at the drill centre in an easterly direction to a comingling tie-in the GEEBB manifold.
The GEEBB manifold will be located outside the Triton swing circle, but inside the 500m safety zone.
The 9-inch flexible flowline will be trenched and buried using trench backfill material. Areas which are not trenched at the Gannet E and Triton approaches will be protected from fishing gear interaction and/or dropped objects by a combination of rock placement and concrete protection mattresses.
Methanol will be delivered from the Gannet E Manifold (GEM) to the Gannet E Tie-in Valve Skid (GETVS) via a dedicated 3/4" thermoplastic hose within the GEM to GETVS chemical/hydraulic jumper bundle. The jumper bundle containing the methanol hose and will be protected from fishing gear interaction and/or dropped objects by a concrete protection mattresses and additional grout bags where concrete mattress placement is not practical.
See detailed map on our bulletin website
Umbilical Trenching Operations - Forvie
Due to a delay the trenching work between the locations noted below will now be undertaken on 1st June 2022 with a planned duration of 10 Days.
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Subsea Structures - Evelyn Valve Skid
Tailwind Mistral Ltd intent to Install the Evelyn Valve Skid Located near the Evelyn EV01 Well
The Evelyn Valve Skid (EVVS) is part of the Evelyn field development, consisting of a gas lift flowline piggy-backed onto a new production pipeline and a new umbilical for carrying control, power, hydraulic lines and chemicals from Triton FPSO to Evelyn.
Evelyn will be connected to Triton via the existing Triton P1 Bittern production riser.
The Evelyn valve skid (EVVS), will be installed at Evelyn, near the location of the EV-01 well, it will be connected to the EVVS from the EV01 xmas tree by the rigid production and gas lift spools pipeline and electrical and umbilical jumper bundles. A 9.5 km control umbilical will be installed to the EV01 well via the EVVS to the umbilical riser base at Triton FPSO. The umbilical will provide hydraulic, electrical and chemical supplies from the Triton dynamic umbilical at riser base SY9516A to the EVVS and wells.
See detailed map on our bulletin website
Survey - North Sea (Ref: 1357)
CGG will acquire ~1800 km² of multi-client 3D seismic data in UK Quad 3 between May and September 2022. Two survey vessels will tow up to 14 8km long hydrophone streamers and a seismic source. The source will emit acoustic energy into the sub-surface that is reflected back to the streamers. The survey is part of a larger ~9000 km² program in Norwegian waters to be acquired concurrently. The UK survey duration is estimated to be 45 days, with 31 days of active source effort.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Shearwater GeoServices AS |
Amazon Warrior 3FNE9 Linde-G V7A2093 Mainport Pine V7ZH8 Amazon Conqueror 3EBI3 Astra G HP8210 Mainport Cedar V7ZH7 |
8400m 8m |
01/05/2022 - 30/09/2022 For 45 Days (in UK) |
210,211 2,4 |
Partially Exposed Conductor Stump - Ketch
Following Operational challenges during the Ketch conductor severance and removal campaign, the 26 inch conductor for KA08 has been severed at a shallower depth of -8ft, leaving a partially exposed stump. ROV footage has observed a crater around the conductor with approximately 2 ft of conductor sitting above the base of the crater. The crater is estimated to be 4 m in diameter with a maximum depth of10 ft.
The crater is known to be naturally backfilling with seabed sediment and is expected to continue to do so, particularly during winter months. The incremental risk posed by the 2 ft conductor stump is considered to be negligible.
See detailed map on our bulletin website
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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Rigmove - Ensco 92 to Tethys TN field
Chrysaor (a Harbour Energy company) plan to move the Ensco 92 Jack-up drilling rig from the Saturn ND field location to the Tethys TN field location to perform abandonment operations on the Tethys TN 49/11b-T1 development well. Throughout well abandonment operations there will be a dedicated ERRV on location monitoring the surrounding sea area.
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Safety Zone Applications x 3 - Foinaven
Notice that BP has applied for the establishment of 3 Safety Zones to cover the subsea installations and structures that will be left after the Petrojarl FPSO leaves the Foinaven field on 1 July 2022.
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Well Intervention Works
Well Intervention Activities (Bruce Field)
The Helix Seawell Light Well Intervention Vessel will be conducting works at the Bruce Field (Western Area Development).
See detailed map on our bulletin website
New Offshore Development Area (ODA) - Captain Field - 1 May 2022 to 30 Apr 2024
A new Offshore Development Area (ODA) has been applied for by Ithaca Energy (UK) Limited and granted by the HSE, for the Captain EOR Stage II Project. The ODA is advisory and will come into force on 1 May 2022, until 30 April 2024. For more information about ODAs, please see HSE document: https://www.hse.gov.uk/offshore/notices/on_42.htm
For more information about ODAs, please see HSE document: https://www.hse.gov.uk/offshore/notices/on_42.htm
See detailed map on our bulletin website
Scott & Telford Water Injection Project - Pipeline Works.
CNOOC Petroleum Europe Limited intends to install an 8” water injection pipeline, from the Scott (PD) Platform to the Telford water injection control structure, an 8” water injection jumper, and an electro-hydraulic umbilical from the central Telford manifold to Telford water injection control structure.
CNOOC Petroleum Europe Limited intends to install an 8” water injection pipeline, from the Scott (PD) Platform to the Telford water injection control structure, an 8” water injection jumper, and an electro-hydraulic umbilical from the central Telford manifold to Telford water injection control structure.
The works comprise:
Scott Field
• Installation of 10” NB water replacement injection flowline (PL6008)
• Disconnection of 10” failed water injection flowline (PL4567).
Telford Field
• Disconnection of failed water injection pipeline (PL2757) and its tie-in spools (PL2757JWF2/FG, PL2757JWH1/HA and PL2757JWH2/HB)
• Installation of 8” NB replacement water injection flowline (PL6010) and jumper (PL6009)
• Disconnection of failed umbilical (PL1284, PL1284.1, PL1284.2 and PL1284.3)
• Installation of replacement umbilical (PLU6011).
Vessels planned to execute the works are:
- Olympic Delta – ROV Support Vessel: Route/Pipeline Surveys; Concrete Mattress Installation; Pipelay Vessel Support.
- Normand Drott – Trenching Support Vessel.
- Apache II – Reel Lay Vessel.
- Deep Arctic – Dive Support Vessel: Umbilical and Flexible Lay from Reel Drive System; Pipeline System Tie Ins; Mattress Installation.
- Nordnes - Rockdumping.
For further information, please contact: Steven McKinney, Steven.McKinney@intl.cnoocltd.com
See detailed map on our bulletin website
Rig - Seafox 4
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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Survey - Pre-decommissioning surveys of the Millom West and Calder Fields (Ref: 1375)
A 5 Day Pre-decommissioning surveys of the Millom West and Calder Fields using the vessel Fugro Mercator call sign: C6DU5 between 1st May 2022 - 30th June 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Fugro GB Marine |
Fugro Mercator C6DU5 |
N/A |
01/05/2022 - 30/06/2022 For 5 Days |
110, 113 |
Survey - Tolmount East Site Survey (Ref: 1373)
A 2 Day Site Survey at Tolmount East using the vessel MV Ocean Resolution call sign: 3EIPG between 25th April 2022 - 31st August 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Gardline Ltd |
MV Ocean Resolution 3EIPG |
N/A |
25/04/2022 - 31/08/2022 For 2 Days |
42 |
Survey - Hunter HK-1 Site Survey(Ref: 1369)
A 2 Day Site Survey at Hunter HK-1 using the vessel MV Ocean Resolution call sign: 3EIPG between 25th April 2022 - 31st August 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Gardline Ltd |
MV Ocean Resolution 3EIPG |
N/A |
25/04/2022 - 31/08/2022 For 2 Days |
44 |
Rig move - Deepsea Stavanger
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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Abigail Project - Pipeline
A 12km 6”/10” pipe in pipe production pipeline with a piggybacked 3” gas lift pipeline, and an umbilical will be installed as part of the Abigail project. They will be installed between a new Abigail drill center manifold and the existing Greater Stella Area Main Drill Centre (MDC) manifold.
As part of the Abigail project we will be installing a 12km 6”/10” pipe in pipe production pipeline with a piggybacked 3” gas lift pipeline. The pipelines will be installed between the Abigail drill centre (a new manifold will be installed and one production well initially) and the existing Greater Stella Area Main Drill Centre Manifold. The pipelines will be installed using a reel lay vessel and will then be trenched and buried for protection. The current project schedule indicates that the installation workscope is due to commence offshore in May 2022.
The pipeline coordinates for the start and end points are summarised in the table below. The pipeline crosses the existing Ithaca Stella Gas Export Pipeline (trenched and buried), and the crossing will be rockdumped for protection, the location is also detailed in the table below. The installation is planned to commence in May and conclude end of August/September. The initial planned campaigns are structure installation early May, followed by pipeline installation, pipeline trenching, umbilical installation (into the trench) and then backfilling. The Dive Support Vessel is the last workscope and mobilises in August to perform the spoolpiece tie-ins and leaktesting.
The pipeline installation is due to commence 26th May (mobilisation) and complete by 5th June (demobilisation). The infield dates are 1st June to 4th June.
|
|
Easting |
Northing |
Comment |
|
Abigail Manifold |
432650 |
6294950 |
Planned location |
|
Pipeline Crossing (Stella Gas Export) |
443995 |
6294585 |
Crossing of existing Stella Gas Export Pipeline (trenched and buried) |
|
Stella Main Drill Centre Manifold |
444500 |
6294649 |
Existing |
*coordinates are Universal Transverse Mercator (UTM) Zone 31 using international spheroid (ED 50), central meridian 3º East.
See detailed map on our bulletin website
Survey - Bell ZX, Victor JM and Kelvin TM Site Survey(Ref: 1368)
A 6 Day Site Survey at Bell ZX, Victor JM and Kelvin TM using the vessel MV Ocean Resolution call sign: 3EIPG or MV Kommandor call sign: MCJO2 between 25th April 2022 - 31st August 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Gardline Ltd |
MV Ocean Resolution 3EIPG or MV Kommandor MCJ02 |
N/A |
25/04/2022 - 31/08/2022 For 6 Days |
49, 44 |
Fishing Advisory Zone - Ninian North
Seabed snagging hazards following the removal of the Ninian North jacket in April 2022 and the removal of the automatic 500-metre Safety Zone.
Following removal of the jacket structure below sea level, there remain a significant number number of seabed structures & items that are potential snagging hazards, within approx. 200 metres of the jacket position. These include:
- Jacket footings (to 46 metres above seabed)
- SSIV structure
- 12 impressed current anodes and associated cables
- Umbilicals
- Pipeline crossings, spans, exposed flanges/bolts
- Pipeline repair clamps with exposed bolts.
Survey - Storr 3 Debris Survey (Ref: 1362)
A 1 Day Debris site survey at Storr 3 using the vessel MV Kommandor call sign: MCJO2 between 9th April 2022 - 31st December 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Gardline Geosurvey Limited |
MV Kommandor MCJO2 |
1250m 3m |
09/04/2022 - 31/12/2022 For 1 Day |
9 |
Survey - Storr Field Survey (Ref: 1367)
A 1 Day Storr Field Survey using the vessel MV Kommandor call sign: MCJO2 between 24th March 2022 - 31st December 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Gardline Geosurvey Limited |
MV Kommandor MCJ02 |
N/A |
24/03/2022 - 30/08/2022 For 1 Days |
9 |
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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Noble Hans Duel Drilling Rig
The Drilling Rig Noble Hans Duel will be located next to the Southwark Platform for approximately 200 days from April 2022. The drilling rig Noble Hans Duel is locating to the south face of the Southwark Platform. The rig is expected to be on site in the region of 200 days. It will be fully within the platform's 500m safety zone.
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Cement Overspill at Jacky Field
Cement over spill from historic drilling campaign. Noticed when Jacky platform was removed. This item could potential snag. Approximate size 4m x 5m. 2m in height.
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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 - Erda
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 - 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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Confirmation of Cardinal Buoys Deployment – at the Pickerill A Jacket
On the 29th March 2022, Leask Marine's C-Force completed its buoy deployment at 11:00 . The vessel Departed Pickerill A Field at 13:00 for transit to Great Yarmouth after the completion of work and arrived alongside at 20:00 the same day. This is a final notification to confirm the 4 cardinal buoys are in their final position and will remain in place until 30th June 2024 as per approval from ML/784/0.
Pickerill A former Platform Lat: 53° 32’ 57.0875” N Long: 01° 04’ 33.3425” E
The cardinal buoys will be deployed within the Pickerill 500 m zone at the following coordinates:
UPDATE: The latest version of the marine Licence accepts the 4 buoys final location is precisely as above.
See detailed map on our bulletin website
Survey - Cygnus Debris Clearance (Ref: 1352)
A 7 Day Debris Clearance survey at Cygnus using the vessel MV Kommandor call sign: MCJO2 between 24th January 2022 - 30th June 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Gardline Limited |
Kommandor MCJO2 |
N/A |
24/01/2022 - 30/06/2022 For 7 Days |
44 |
Survey - Bunter outcrop borehole drilling (Ref: 1365)
A 59 Day Shallow Drilling at the Bunter outcrop using the vessel Valaris Rowan Norway call sign: 8770077 between 13th April 2022 - 30th June 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Valaris plc (Ensco Offshore UK Limited) |
Valaris Rowan Norway 8770077 |
N/A |
13/04/2022 - 30/06/2022 For 59 Days |
43 |
Survey - Greater Schiehallion (Ref: 1360)
A 100 Day site survey at the Greater Schiehallion using the vessels Subsea Viking call sign: LCPX, Veritas Viking call sign: LMIB3, Maria-G call sign: 3FMM5, Artemis Odyssey call sign: LNUT3 between 1st April 2022 - 31st August 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
PXGeo |
Subsea Viking LCPX Veritas Viking LMIB3 Maria-G 3FMM5 Artemis Odyssey LNUT3 |
160m 8m |
01/04/2022 - 30/08/2022 For 100 Days |
204, 205 |
Survey - Diadem Exploration Well (Ref: 1353)
VSP will be used to characterise the Diadem exploration well which will involve the use of a seismic array from the drilling rig. will involve a three-gun array suspended from the rig (3 x 250 cubic inch guns). The VSP will be undertaken for 7 days on the 16" section, 13 days on the 12¼" section and 8 days on the 8½ section. The temporary 500 m exclusion zone of the drilling rig has been assumed as the working radius. Between 1st April 2022 and 30th November 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Capricorn Energy UK Limited |
N/A |
N/A |
01/04/2022 - 30/11/2022 For 1 Day1 |
22 |
Rig - Safe Caledonia
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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Dunlin Alpha Decommissioning Project - Topsides Removal Phase
Topsides removal activities to be undertaken at the Dunlin Alpha installation location, commencing on or around 01/04/22, for a period of several months
Dunlin Alpha topsides removal decommissioning activities are planned to be undertaken in 2 separate campaigns:
- The initial campaign is planned for April – May 2022 and will involve use of the Heerema HLV "Thialf" to separate and remove a number of platform modules. These modules will be transported to the Vats facility in Norway for onshore recycling and disposal.
- The second campaign is planned to commence on or around June 1st and will involve use of Heerema SSCV "Sleipner" to remove further platform modules and then lift and remove the Dunlin Module Support Frame (MSF). These will then be transported to the Vats facility in Norway for onshore recycling and disposal.
The Dunlin Alpha - Aid to Navigation unit will be turned off at this time and the HLV / SSCV will act as mitigation to reduce navigational risk during this period. A temporary Aid to Navigation will be placed on the installation during any periods where a decommissioning vessel is not in attendance at location (ref: Consent to Locate permit CL/469/2 - attached).
See detailed map on our bulletin website
Rig - Transocean Endurance
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 - 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 - Stena Spey
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 Work - West Sole Bravo / ERDA JUB COMOPS
Well intervention work at West Sole Bravo (48/6) supported by the ERDA JUB. Estimated arrival 29th March 2022, duration of up to 60 days.
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Rig - 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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Unmanned Surface Vessel (USV) Survey - Irish Sea
Operations of a remotely piloted Uncrewed Surface Vessel (USV) are planned out of Rhyl, Fleetwood and Beaumaris ports. There will up to 4 USV’s operational at any one time.
A support vessel will escort the USV from the active ports to the port limits. Although the vessel is uncrewed, it is managed throughout the 24hour operation, piloted remotely using 360 degree cameras and other navigational aids.
Name X-11 Uncrewed X-14 Uncrewed X-15 Uncrewed
MMSI 232033343 232035680 232035682
Beam 2.2m 2.2m 2.2m
Speed 3.5 knots 3.5 knots 3.5 knots
Draught 1.5m 1.5m 1.5m
Tonnage 750kg 750kg 750kg
The USV sends real time images and situational awareness data over satellite to a team of operators keeping watch and controlling the vessel remotely 24/7. Safety Precautions: The USV is equipped with the following to make it conspicuous to other marine traffic: AIS Navigation Lights & Sound Signal Active Radar Reflector Superstructure Painted Yellow Seafarers are asked to avoid contact with the vessel and be aware of the operational area during this period. XOCEAN - Emergency Contact Details: Clodagh McAnerney (Project Manager) +353 87 676 8806 clodagh.mcanerney@xocean.com JP Kearns (Marine Superintendent): +353 87 051 8601 jp.kearns@xocean.com Kevin Harnett (COO) +353 87 975 3797 James Ives (CEO) +353 87 123 5175
See detailed map on our bulletin website
B-Block Decommissioning - DSV Activities - Balmoral Phase 2 Decommissioning
DSV Seven Kestrel is due to mobilise in Peterhead on 1st April 22 to undertake a 41 day offshore campaign to execute the Balmoral Phase 2 Decommissioning Scope. The vessel will be working at Balmoral, Brenda and Nicol 500m safety zones. Upon completion of the offshore campaign, the vessel will demobilise in Peterhead.
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Survey - Greater NEP 3D Towed-streamer (Ref: 1332)
A 92 Day Survey Greater NEP using Vessels Ramform Vanguard Call Sign: C6TU8 & Thor Modi call sign: C6B14 between 01st April 2022 - 15th August 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
PGS |
Ramform Vanguard C6TU8 Thor Modi C6B14 |
3600m 15m |
01/04/2022 - 15/08/2022 For 92 Days |
42,43,44 |
Survey - Liverpool Bay Reservoir Survey (Ref: 1324)
A 99 Day reservoir survey in Liverpool Bay between 15th March 2022 - 15th July 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
ENI |
|
|
15/03/2022 - 15/07/2022 For 99 Days |
110 |
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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Rig - Transocean Equinox
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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Drill rig positioning - Dana Western Isles
Island Innovator on location at the Western Isles South Drill Centre April - September 2022. The Island Innovator drill rig will arrive at the Western Isles South Drill Centre from the 1st April 2022 and will remain on location until latest 30th September 2022 to drill a new well.
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Anchor pre-lay - Dana Western Isles
Eight anchors to be pre-laid at the Western Isles South Drill Centre during March in advance of drill rig arrival in early April (rig arrival will be subject to separate notification). A new well is due to be drilled at the Western Isles South Drill Centre from early April 2022. Prior to arrival of the drill rig, eight rig mooring anchors and associated chains will be pre-laid on the seabed.
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COSLPioneer MODU - Abigail Field
COSLPioneer MODU will be drilling in the Abigail field for Ithaca Oil and Gas Limited for approximately 60 days, with the anchors being pre-laid approximately two weeks prior to the rig arriving onsite. Activity will take place from 7th March until 31st May 2022.
Ithaca Energy (UK) Ltd is planning to use the COSLPioneer to re-enter the currently suspended appraisal well (29/10B-8) to complete this as a production well (29/10B-P2W) at the Abigail drill centre. The activity will last 74 days (including anchor pre-lay). A guard vessel will be on location from the pre-laying of the anchors.
The field lies within the United Kingdom Continental Shelf (UKCS) Block 29/10, approximately 233 km south-east of Peterhead, 36 km from the UK/Norway median line and 13 km west of the Ithaca Energy (UK) Limited owned floating production facility, the FPF-1.
See detailed map on our bulletin website
Rig - Valaris Viking
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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Rig - Maersk 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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Decommissioning Activity at the Indefatigable 18A Installation
Decommissioning related activities – HCF Campaign at the Indefatigable 18A Installation. Planned HCF works are due to commence on the Indefatigable 18A Platform (UKCS 49/18A). The Jack up Barge Haeva, departed from Bessemer on 9th February 2022 and transited to the Indefatigable field, where it has been holding for a suitable weather window to come alongside the platform.
The HCF operations will commence around 8th March 2022 following the interface activities .The HCF campaign duration is 142 days and finish approximately 25th July 2022.
See detailed map on our bulletin website
Drilling Activity - Valaris 122 at Edinburgh
The Valaris 122 (jack up drilling rig) will be conducting drilling operations at the Edinburgh field on the 30/14a-Edinburgh well. The Valaris 122 will be drilling at a standalone location in the Edinburgh field on a single well campaign. The total duration of drilling and completion activities is expected to last approximately 160 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
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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Well Drilling Campaign - Catcher Infill
Notice to alert sea users to drilling activity within the Catcher Area using the Maersk Innovator MODU in Block 28/9.
The Maersk Innovator Drilling Rig is due mobilise from Denmark to the Catcher Area in February 2022 and should be on location at the Catcher North drilling template in early March 2022.
See detailed map on our bulletin website
Subsea Clearance Project - Ex Northern Producer FPF 500m Zone
EnQuest Heather Ltd intends to undertake the seabed clearance works in the ex Northern Producer FPF 500m zone in relation to Dons Field decommissioning works commencing 01 April 2022.
The workscope comprises of several ROV Construction Support Vessels (CSV) performing the seabed clearance of the risers, Mid Water Arch, Riser Base Structure and surface laid spoolpieces, pipelines and umbilicals up to the point of burial.
Initially an ROV Construction Support Vessel (CSV) will perform the recovery of the concrete protection mattresses from over the surface laid spoolpieces, pipelines and umbilicals and will perform the cuts on these items up to their point of burial at full trench depth or start of rockdump. This will be followed by an Anchor Handling Tug (AHT) which will recover the Flexible risers and the surface sections of the flowlines and umbilicals before releasing the Mid Water Arch (MWA) and floating it to the surface. The MWA will then be towed to Lerwick in the Shetland Isles for disposal.
Finally another CSV will be in field to perform the recovery of the MWA clump weights, Riser Base Structure, rigid spoolpiece and pipeline sections along with any remaining concrete protection mattresses and grout bags. The 500m zone will then be surveyed for debris, the debris will be recovered and a final 500m zone MBES clearance survey will be performed to confirm the 500m zone is clear of any oil field related debris and that no snag hazards remain. An over trawl survey will then be performed by the SFF to confirm there are no snag hazards before issuing a seabed clearance certificate and opening up the area to fishing activity.
All the vessels will be positioned within the ex Northern Producer FPF 500m Zone during these activities with the AHT also towing the MWA to Lerwick along a predetermined tow route.
See detailed map on our bulletin website
Survey - Goldeneye Seabed Clearance Survey (Ref: 1344)
A 0.5 Day Seabed Clearance Survey at the Goldeneye using the vessel Edda Flora call sign: LAJW3 between 01st February 2022 - 31st December 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
DeepOcean AS |
Edda Flora LAJW3 |
N/A |
01/02/2022 - 31/12/2022 For 0.5 Day |
14 |
New Safety Zone: Kyle/Curlew DUTU Structure
A new safety zone has been granted by the Secretary of State for the above location/structure. For installations already on location the safety zone will come into force on 1st March 2022.
This safety zone may be new, or an amendment to an existing zone. It may also replace a safety zone in place around a platform, or other surface structure for the purposes of decommissioning.
Your FishSAFE Information will be updated in the next release.
See detailed map on our bulletin website
Survey - Minke & Orca Survey (Ref: 1355)
A 4 Day survey Minke & Orca using the vessel MV Kommandor call sign: MCJO2 03rd March 2022 - 31st July 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Gardline Ltd |
MV Kommandor MCJO2 |
N/A |
03/03/2022 - 31/07/2022 For 4 Day |
44 |
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 move - Irish Sea 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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Anchors on seabed - Tybalt Well
12 pre-laid anchors will be left on the seabed complete with lengths of chain when the rig departs location late December and as such may cause a hazard to fishing vessels. Anchors will be on location for 2-3 months until the rig returns. Update: Due to a change in well sequence, the expected duration of storage has been extended to Summer 2022.
As laid anchor pattern with rig in position attached, notice will be updated after rig departure to show only the remaining equipment.
See detailed map on our bulletin website
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 - Noble Lloyd Noble
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 - Maersk 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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Rig - Rowan Stavanger
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 - 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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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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Survey - Curlew Pipeline and Seabed Clearance Survey (Ref: 1335)
A 5 Day Clearance survey at Curlew B,C,D and pipeline and umbilical routes using the vessel Edda Flora call sign: LAJW3 between 01st February 2022 - 31st December 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
DeepOcean AS |
Edda Flora LAJW3 |
N/A |
01/02/2022 - 31/12/2022 For 5 Days |
29 |
Survey - Kingfisher PL & Umbilical Seabed Clearance Survey (Ref: 1340)
A 2 Day Clearance survey at Kingfisher PL & Umbilical using the vessel Edda Flora call sign: LAJW3 between 01st February 2022 - 31st December 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
DeepOcean AS |
Edda Flora LAJW3 |
N/A |
01/02/2022 - 31/12/2022 For 2 Days |
16 |
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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Snagging Hazards - Decommissioned Murchison jacket footings - Fishing Advisory Zone
600m x 600m box covering the remaining jacket footings post-decommissioning. Area inside this region has NOT been verified by overtrawl survey.
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Seabed hazards following removal of Banff FPSO anchors & moorings
A series of deep, steep sided trenches at mooring line touchdown points and areas of disturbed seabed with clay boulders at the anchor locations, caused during recovery of the anchors. Moorings and anchors have been removed, leaving the seabed features.
10 mooring line trenches, varying in length from 70m to 180m; up to 8 metres wide and up to 9 metres deep. These trenches are steep-sided (in many cases vertical, cut into the clay seabed).
10 anchor scars, consisting of shallow trenches (20-90 metres long), shallow-sided depressions (less than 2 metres deep) but with areas of significantly disturbed seabed, including clay boulders up to 3 metres in size.
See detailed map on our bulletin website
Survey - Chiswick Beta (Ref: 1349)
A 1 Day Survey at Chiswick Beta using the Vessel Gardline Kommander call sign: MCJO2 between 28th January 2022 - 30th June 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Gardline Ltd |
Gardline Kommander MCJO2 |
N/A |
28/01/2022 - 30/06/2022 For 1 Day |
49 |
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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MetOcean Buoys - NEP Project
7 MetOcean buoys will be installed to monitor the local metocean conditions within the NEP carbon capture project area. Each location shall have a seabed frame with a navigation buoy on the surface.
The 7 units will have the following equipment:
Units 1, 3, 4, 5, 6 & 7 - Seabed Frame with attached acoutstic release mechanism & surface navigation buoy within 150m of the seabed frame
Unit 2 - Seabed Frame with attached acoutstic release mechanism & surface navigation buoy within 150m of the seabed frame. This unti will also have a second surface buoy attached to the seabed frame to measure additional information.
It is advised to give 200m clearance to these units
See detailed map on our bulletin website
NW Schooner Subsea Well - Missing Debris Cap
The Debris Cap for the NW Schooner subsea well has been identified as missing, leaving the wellhead more vulnerable to snagging on fishing nets. The Debris Cap is 4.5m x 3.9m x 1.4m and approx 3.5 tonnes, whilst the wellhead stands 6m off the seabed.
The approximate dimensions of the Debris Cap is 4.5m x 3.9m x 1.4m with a weight of approximately 3.5 tonnes. It is not known whether the Debris Cap is lying within a 500m zone of the well. A 200m x 200m area centred on the well has been searched, with no sight of it. Therefore the exact location of the Debris Cap is unknown. The loss of the Debris Cap leaves the NW Schooner wellhead more vulnerable to snagging from trawler/fishing nets. The approximate size of the tree with over trawl legs deployed is 7.8m x 7.8m x 6m high.
See detailed map on our bulletin website
Rig Move – Valaris 121 to Judy field
Chrysaor (a Harbour Energy company) plan to move the Valaris 121 Jack-up drilling rig from the Dunnottar field location to the Judy Riser Platform to perform drilling operations on the Judy 30/07a-RD development well. Throughout well operations there will be a dedicated ERRV on location monitoring the surrounding sea area.
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Rig - Valaris Gorilla V
Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig 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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Deployment of Spherical Directional Waverider Buoy - Northern North Sea
Shell deployed a new wave buoy in the Northern North Sea on 05-October-2021. Colour: Yellow, Size: 0.9 diameter, Fl: 5 10s
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Rig - Haven
Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Anchor Listing for Safe Caledonia at Elgin PUQ
The Flotel Safe Caledonia is alongside ELGIN PUQ – within 500m zone. Providing additional accommodation for ongoing fabric maintenance campaign. Anchor Location Listing
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Safe Caledonia at Elgin PUQ
The Flotel Safe Caledonia is alongside ELGIN PUQ – within 500m zone. Providing additional accommodation for ongoing fabric maintenance campaign. Duration extended to over Winter at site and recommence work in Spring 2022 to Oct 2022
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Rig - Valaris 249
Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Fishing Hazard - Dons Fields Decommissioning Works
The Northern Producer FPF has been removed from it’s moorings and towed to port for decommissioning but the subsea assets within the Northern Producer FPF 500m zone will remain in place on the seabed and could pose a snag hazard to fishermen
The Northern Producer FPF has been removed from it’s moorings and towed to port for decommissioning but the subsea assets within the Northern Producer FPF 500m zone will remain in place on the seabed and could pose a snag hazard to fishermen therefore the Thistle Alpha Platform ERRV will act as a guard vessel until the 500m zone clearance is performed in 2022.
This includes the 8 No Risers draped over the Mid Water Arch (MWA), the MWA Clumpweight Guide Frame, the Riser Base Structure (RBS) and the surface laid pipelines / Umbilicals. The MWA will remain in the water column at a depth of 112m and will remain tethered to the seabed via the clumpweight guide frame. The risers will remain draped over the MWA with one end on the seabed and the other end will remain connected to the RBS so that they remain stable. The existing stabilisation mattresses will remain in place over the surface laid pipelines/umbilicals.
See detailed map on our bulletin website
Rig - West Linus
Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Survey - Devil's Hole Horst (Ref: 1290)
A 71 Days Site Survey at Devil's Hole Horst using vessel Akademik Nemchinov call sign: UETM between 1st September 2021 - 31st July 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
North Sea Natural Resources Ltd |
Akademik Nemchinov UETM |
N/A |
01/09/2021 - 31/07/2022 For 71 Days |
27, 28 |
Application for Offshore Development Area - Seagull Umbilical
Neptune E&P UK Ltd would like to request to establish an additional offshore development area in Block 22/29C for the Seagull Umbilical location.
The Seagull Field is located on UK licence P1622 Block 22/29C. 17km south of the Eastern Trough area Project (ETAP) Central Production Facility (CPF). Neptune will develop the Seagull reservoir as a subsea tieâ€back to existing seabed infrastructure over the BP operated ETAP CPF. The development is high pressure and high temperature and Neptune is the Operator for the subsea development. Neptune will also drill and complete the Seagull Wells and shall retain overall Project responsibility.
The Seagull development will require installation of new subsea equipment as follows: Four Xmas Trees; a 4 slot manifold; a 17km control umbilical (including hydraulic, electrical and chemical supplies) direct from ETAP to Seagull; a 5km 10” production pipeline; a 5km 3.5” wash water pipeline from Seagull to the existing Egret manifold; and a Wye manifold adjacent to the existing Egret manifold, through which the new Seagull production pipeline will connect with the Heron cluster pipeline system connected back to the ETAP CPF. From ETAP CPF Seagull oil and gas will be exported to shore through the GAEL and FPS pipeline systems to the Kinneil Terminal onshore.
We already have an ODA established covering the Seagull drill centre and the Egret manifold and would like to request to extend the ODA to incorporate the entire Seagull works area. The extended Offshore development area will be required commencing from September 2021 †March 2023.
See detailed map on our bulletin website
Survey - Dunnottar Exploration Well VSP (Ref: 1270)
A 1 Day Vertical Seismic Survey between 31st August 2021 and 31st August 2022.
| Company | Vessels |
Towed Cable Length & Depth |
Duration | Survey Block |
|
Chrysaor Petroleum Company U.K Limited |
|
5m |
31/08/2021 - 31/08/2022 For 1 Day |
30 |
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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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
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
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