View Map 
Rig move - Valaris Norway
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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COSL Innovator drilling at Guillemot North West Field
The COSL Innovator will be on location at the Guillemot North West Field from the 27th September for approximately 83 days.
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Seabed hazards following removal of Banff FPSO anchors & moorings
Trenches at mooring line touchdown points - remediated with rock placement.
10 mooring line trenches, cut into the clay seabed. Remediation of these trenches has been completed (by rock infill to a profile below mean seabed), although seabed verification has not yet been carried out.
See detailed map on our bulletin website
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 - 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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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 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 - Valaris 248 (ex 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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Rig - Valaris 122
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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Rig Move - Maersk Inspirer
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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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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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 - 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 Move - Shelf Drilling Fortress
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 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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Subsea Disconnects Campaign 2B - Cormorant Alpha, Pelican
Taqa are decommissioning NNS asset Cormorant Alpha and associated subsea facilities UMC and Pelican. The Subsea 7 vessel "Seven Atlantic" will be undertaking operations to flush, disconnect and isolate UMC, Pelican and gas export / import line PL17 from Cormorant Alpha.
Taqa are decommissioning NNS asset Cormorant Alpha and associated subsea facilities UMC and Pelican. The Subsea 7 vessel "Seven Atlantic" will be undertaking diving operations to flush, disconnect and isolate UMC, Pelican and gas export / import line PL17 from Cormorant Alpha.
See detailed map on our bulletin website
Penguins Redevelopment Project - Offshore Development Area
The project includes extending the life of the existing wells and addition of eight new wells. The new wells will be tied into the existing Penguins infrastructure and connected into a new FPSO. The pipeline system will be split into a North and South production pipeline, with the FPSO positioned close to the centre of the field. An offshore development area has been granted on the 18th April 2024 to further protect the pressurised infrastructure during the ongoing construction phase.
UKCS Block ID: 211/13a and 211/14a
Water Depths refer to Lowest Astronomical Tide (LAT) with all depths quoted in metres.
No visible marker (marker buoys) will be deployed.
Schematic drawing has been attached.
See detailed map on our bulletin website
Victory Development - Offshore Development Area
The Victory Project consists of the development of the Victory Subsea gas field as a single well tie-back to the Shetland Gas Plant. An Offshore Development Area has been put in place during the construction phase based upon the planned location of the Victory PLEM (North) between May 2024 and September 2025. The offshore development area for Victory Project was granted on the 20th March 2024. (see Schematic drawing att.)
UKCS Block ID: 206/4a, 206/5c and 207/1a
Water Depths refer to Lowest Astronomical Tide (LAT) with all depths quoted in metres – 126m – 296m
No visible marker (marker buoys) will be deployed.
See detailed map on our bulletin website
Metocean Survey - Clair Ridge Are
bp is planning to carry out metocean survey activities within the Clair area. Near seabed current data and associated parameters will be collected over an initial period of 12 months. The survey will be undertaken using an MPV and the total survey time is expected to be 3 days for deployment and 365 days for survey activities. The survey operations will involve the placement seven metocean deployments with moorings on the seabed that will remain in place for a year.
Between 24/09 and 27/09, the seven laid metocean buoys will be recovered, serviced and redeployed at the same target location. Further, the Metocean 5 deployment will be fitted with an additional current meter such that the deployment height will increase from 13m to 34m above the seabed.
See detailed map on our bulletin website
Wet Store Area - Drilling Riser Pipe - North of the Schiehallion North West drill centre
Drilling riser pipe sections have been stored on the seabed in a designated area to the north of the Schiehallion North West drill centre. The riser pipe sections have been anchored to remain up to 3 m above seabed. This area is outside of the 500m zone for Schiehallion North West and poses a snagging risk to any fishing vessel operating in the area.
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Diving - Hewett Field
Flushing and disconnection of various pipelines. DSV Vessel Boka Da Topaz will be working within the Hewett field. Various pipelines connected to Littly Dotty/Deborah/Dawn/DELLA/DELILAH subsea wells will be flushed from topsides and disconnected subsea by divers. P&A activities with V72 RIG
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Structure in situ - Leverett CAN
Leverett CAN-basic left in situ until it is recovered by a vessel. 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.
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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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Brent Subsea Infrastructure Decommissioning (SID) - Outstanding Works
The vessel 'Olympic Ares' will be undertaking outstanding decommissioning works that will include: Debris & grout bag recovery works from SPAR PLEM, VASP, NLGP SSIV, & within the safety zones at BA, BB, BC & BD; degraded Mattress recovery from BA & NLGP SSIV; anode skid recovery from some decommissioned pipelines; anchor pile removal from BA splitter box; and recovery of Brent 7 guide base in open water, between BB and BC and recovery of umbilical severance device on PLU6294, near the NLGP SSIV.
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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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Pipeline Decommissioning - Western Isles to Tern
The 6" gas export / import pipeline between the Western Isles and Tern Developments will be decommissioned.
The Pipeline will be disconnected from the Tern subsea isolation valve (within the Tern platform 500 m safety exclusion zone) and the Western Isles North Riser Base (within the Western Isles FPSO / mid-water arches 500 m safety exclusion zones). Surface-laid connecting spools and associated mattresses at both ends of the pipeline will be removed. The pipeline sections back to the existing rock armour cover will be cut and recovered. The exposed ends will be temporarily protected useing concrete mattresses, and subsequently permanently covered with new rock armour.
See detailed map on our bulletin website
Western Isles infield subsea infrastructure decommissioning
Infield pipelines and manifolds associated with the Western Isles Development will be decommissioned
Risers, tie-in spools, manifolds and mid-water arches will be recovered from the seabed. The surface laid pipeline bundles serving the North and South drill centres will have appurtenances removed from their upper surfaces, but will remain in place until a decommissioning option is finalised. Wellheads will be left in place with existing fishing protection structures pending a future plug and abandonment campaign.
New rock armour will be deposited to protect exposed pipeline bundle ends at the North and South Drill Centre and North and South Riser Base locations.
See detailed map on our bulletin website
Western Isles FPSO & moorings decommissioning
The Western Isles FPSO will be disconnected from the subsea risers and moorings and floated off station. The mooring lines and piles will subsequently be recovered.
The FPSO will be disconnected from the subsea production, water injection and service umbilical risers, which will be temporarily laid on the seabed. The FPSO will then be disconnected from its moorings, with mooring lines also temporarily laid down on the seabed. The FPSO will then be towed off station using anchor handling tugs. The mooring lines will be recovered and the mooring piles will be cut 3 m below the seabed.
See detailed map on our bulletin website
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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Jackdaw Development - North Sea
The Jackdaw field is an ultra-high pressure/high temperature (uHPHT) reservoir that will be developed with a not permanently attended Wellhead Platform (WHP). Four wells will be drilled at the Jackdaw WHP. Produced fluids will be exported via a subsea pipeline to the Shearwater platform where these will be processed before onward export via the Fulmar Gas Line and the Forties Pipeline System. Vessels: SUV1/Deep Discoverer/Deep Energy/Normand Drott /SUV2 (Olympic Trition).
Jackdaw Installation 2024/2025
New Riser installed to Shearwater A using DSV.
New pipeline will be installed between Shearwater A and Jackdaw.
New SSIV will be installed within the Shearwater 500m zone using DSV or CV.
New electro-hydraulic/chemical umbilical & associated protection material will be installed between Shearwater C and new Shearwater SSIV using DSV.
New SSIV will be installed within the Jackdaw 500m zone using DSV or CV.
New electro-hydraulic/chemical umbilical will be installed between Jackdaw wellhead Platform and New Jackdaw SSIV using DSV.
New tie-in spools & associated protection material will be installed between new pipeline and Jackdaw riser via new SSIV using DSV.
See detailed map on our bulletin website
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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Rig Move - COSL Innovator
Around 15th December 2024, COSLInnovator MODU will move off location an GNW well and move to Evelyn EV-02 well location.
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COSL Innovator MODU at Evelyn EV-02
Submitting a notice to make fishing vessels aware that MODU COSLInnovator will be on location at Evelyn EV-02 circa 15th December 2024. If a weather window allows the opportunity, anchors may be pre-laid prior to MODU arrival.
The MODU COSLInnovator is scheduled to be on location at Evelyn EV-02 location to undertake drilling operations.
See detailed map on our bulletin website
ROV Inspection Campaign Across Forties and Beryl Area
Apache North Sea will be carrying out its annual ROV Inspection Campaign across all Apache assets in the Forties and Beryl areas in early November 2024. The vessel will be the ROVSV EDT Jane and will be in the areas for 30 days.
ROV Operations in the areas and good communication with all other vessels in the areas.
See detailed map on our bulletin website
Ocean Endeavor MODU Operations - Penguins Field
Notification for MODU of Ocean Endeavour at Penguins field.
Please note the anchors and the associated lines extend outwith the MODU 500m zone.
See detailed map on our bulletin website
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 - 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 - 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 - 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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OGW Rig - Schiehallion North Drill Centre
Please be advised that the semi-sub rig Ocean Great White is now hooked up at North DC, using the below noted mooring pattern. There are no surface buoys on site. Anchor handler vessels have departed, and the rig expects to be on site for 5 - 7 weeks.
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Rig Move - Valaris 92 Southern North Sea
Harbour Energy are scheduled to complete abandonment operations (using the Valaris 92 jack up) at the Hunter field and then move the rig to the NW Bell location for abandonment operations.
Harbour Energy are scheduled to complete abandonment operations (using the Valaris 92 jack up) at the Hunter field and then move the rig to the NW Bell location for abandonment operations.
See detailed map on our bulletin website
Failure of AIS - Collision Avoidance - Tolmount Platform
AIS System Not available. All other Navaids functioning.
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Ocean Endeavour MODU Move To Kingfisher Location
Rig move of Ocean Endeavour MODU from Penguins field to Kingfisher field to perform decommissioning workscopes
Due to move being perfromed in winter rig may look for sheleterd location to break up journey.
See detailed map on our bulletin website
Exposed section and mattress at PL1877 - Telford
Concrete mattress in open water identified during ROV survey as dislodged from Telford PL1877. Small section of pipeline exposed.
During a recent ROV survey, it was discovered that a mattress has become dislodged at PL1877 between Telford central and Telford east manifold outwith either 500m zone. This has left approximately 6m of the pipeline uncovered. CNOOC are currently endeavouring to resolve this issue with both interim and long-term solutions identified.
See detailed map on our bulletin website
Mattress & RFU Installation - Southern North Sea
Perenco UK are undertaking a pre-emptive pipeline remediation campaign on pipeline assets across the Southern North Sea - PL22, PL23, PL24, PL107, PL109, PL630, PL447, PL451 and PL669.
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Stena Don MODU Move And Operations - Pierce Field
Operations with Stena Don MODU at 2 mooring locations at the Pierce field. Please note the anchors and the associated lines extend outwith the MODU 500m zone.
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ROV Visual Pipeline Inspections - Shell Pipelines Southern North Sea
Ocean Infinity Armada 7801 lightly crewed ROV/Survey Vessel to perform pipeline inspections along various Shell pipeline routes
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Pre-Lay of anchors - Kingfisher
Pre-Lay of anchors for Ocean Endeavor rig to perform well decommissioning.
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Well Tie-in - Penguins Pan NW
The Pan NW Infill project will be achieved by drilling a new well and installing the associated subsea infrastructure to route production to a new FPSO in field via the existing DC2 manifold. Vessel: DSV Deep Discoverer (TechnipFMC)
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Disconnection - Brent WLGP (PL17)
This scope of work is to flood the Cormorant Alpha to WLGP SSIV production pipeline PL17, before cutting and recovering a short section within the NL-WL PLEM 500m safety zone, as part of a series of works to de-energise Cormorant Alpha. Vessel Name: Seven Atlantic
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Dweller Platform surveys LBA 3Q 2024
Fugro have been contracted by ENI UK Ltd to undertake their 2024 Liverpool Bay Area Inspection Campaign. The Douglas complex is central to the ENI UK Ltd Liverpool Bay network as all oil and gas produced by its four satellite sites (Lennox, Hamilton, Hamilton East and Hamilton North) is distributed to the complex for processing. Natural gas products are then sent ashore to the Point of Ayr Gas Terminal and crude oil to the Offshore Storage Installation (OSI).
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Ground Moorings - Schiehallion North West
4 additional moorings will be pre-laid at the Schiehallion North West Drill Centre in preparation for the upcoming Ocean Great White rig move. These will be in addition to the 4 moorings already in place. The Aurora Sandefjord will be on location w/c 25th November (weather permitting) for up to 2 weeks to complete the operation. The locations of all anchors are shown in this notice, note that anchors will be laid down on the seabed and there will be no surface buoys or mid-water sections.
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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 & October 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 Development 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.
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 |
October |
|
Talbot & Affleck Pipeline Trenching Vessel (TSV) |
Normand Drott |
LDRO |
May / June |
|
Affleck Umbilical Trenching Vessel (TSV) |
North Sea Enabler |
LACJ8 |
November |
|
Dive Support Vessel (DSV) |
Deep Arctic |
C6XW3 |
July - Nov |
|
Rockdump Vessel (FFPV) Pipeline |
Nordnes |
PHOG |
June |
|
Rockdump Vessel (FFPV) Umbilical |
Nordnes (TBA) |
PHOG (TBA) |
Nov / Dec |
|
Guard vessels |
Various |
Various |
April to Nov |
See detailed map on our bulletin website
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 - 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 Move - Well-Safe Defender
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 Stavanger
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 - 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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Valaris 123 Drilling Unit - Pensacola Appraisal Well
Valaris 123 jack up rig is scheduled to arrive on location 12-Nov-2024. Valaris 123 jack up rig will stay on location for ~112days to drill the Pensacola Appraisal well.
Valaris 123 jack up rig is scheduled to arrive on location 12-Nov-2024. Valaris 123 jack up rig will stay on location for ~112days to drill the Pensacola Appraisal well.
See detailed map on our bulletin website
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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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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Jumper Flushing Operations - Rochelle Subsea disconnection
The Diving Support Vessel Seven Kestrel will mobilise to the Rochelle East and West manifold locations and undertaken spool and jumper flushing operations. This will then be followed by disconnecting the spools and jumper between the manifolds and the subsea Xmas Trees.
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Wellhead Severance Activities - Trees (Birch, Larch and Sycamore), Chestnut and Appleton
Spirit Energy are planning to conduct wellhead severance activities in the Trees (Birch, Larch and Sycamore), Chestnut and Appleton locations from the Normand Jarstein CSV. Operations are due to commence on 14th November 2024 and take approximately 18 days. These dates are subject to change depending on weather and operational requirements.
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Subsea Decommissioning - Banff & Kyle
Vessels will be completing subsea decommissioning activities at the Banff and Kyle fields. Scopes are to be carried out mainly inside existing subsea 500m Safety Zones, but some scopes will be completed out-with these zones.
3-week campaign of subsea debris clearance and rock installation commencing 20th November 2024.
See detailed map on our bulletin website
Survey Works Fugro Orca - Liverpool Bay Pipeline survey
Pipeline survey works LBA. pipelines will be surveyed MBES and drop down ROV by unmanned Orca vessel.
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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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Metocean Buoy Installed - Pierce Area
A spherical wave buoy with a diameter of 0.9 meters was installed in the Pierce Field.
WGS84: 57° 09' 20.401'N, 002° 16' 12.279'E
Clump weight: 500 kg steel ballast with chain
Deployment date: 29/08/2023
Radius cone: ~150m
Model: Datawell Waverider
Diameter: 0.9 m
Colour: yellow
LED light: 5 flashes in 10 s 20 s repetition 360° around for 4 Nm distance
See detailed map on our bulletin website
Drilling of the Abbey well by the Noble Resilient jack-up drilling rig
Petrogas North Sea Ltd intends to carry out drilling operations using the jack-up drill rig “Noble Resilient” at the Abbey gas field . The work is expected to take around 100 days at the Abbey location. However the actual duration will depend on both operational and weather factors. Whilst at location the vessel will be static and connected to the seabed so is unable to move or maneuver its position.
Petrogas seeks the cooperation of fishermen to refrain from placing static fishing gear within 500m of the Abbey well site location, where the jack-up drill vessel will be working, This is to avoid any entanglement, interference or damage to either the fishing gear or drilling equipment.
See detailed map on our bulletin website
Rig Move - Dolphin PBLJ to Brodgar field
Harbour Energy are scheduled to complete Drilling operations (using the Dolphin Paul B Loyd Junior – Semi Submersible) at Gilderoy 15/28b- and then move the rig to the Brodgar field in the Central North Sea block 21/03a. This move is currently planned for the 01/11/24.
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Annual subsea facilities inspection - North Sea
ROV inspection of subsea infrastructure with multiple ROV's from ROVSV, likely the Deep Vision.
Visual inspection, cleaning and cathodic protection measurements.
14 day period within the Start and End Date below.
See detailed map on our bulletin website
Ground Moorings at Alligin Drill Centre
Seven mooring ground chain and pennant sections were recovered during the week commencing 14th October, as part of the rig move to Schiehallion North. One mooring remains in place until further notice, at the below noted location. There are no surface buoys or mid-water sections.
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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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Well Intervention Work - HAEVA at ST3 Ravenspurn Field
Please be advised that the HAEVA Jack-Up Barge (JUB) is due to depart from the Arthur subsea manifold on 30th September 2024 (at the earliest and dependent on weather), and transit to ST3 (UKCS 42/30) in the Ravenspurn Field, where it will commence Well Intervention work. The estimated earliest arrival date of the HAEVA at ST3 is 1st October 2024. The JUB will remain on location at ST3 until latest 31st March 2025.
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Development Project - Victory Field
The Victory Project is to develop the Victory subsea gas field as a single well tie-back to the Shetland Gas Plant. This is to be achieved by drilling a new well and installing a pipeline to route hydrocarbons via an existing hot tap tee into the existing Greater Laggan Area (GLA) pipeline system to export via the Shetland Gas Plant.
All planned construction vessels this year have completed their works. An update on 2025 Vessel will be updated soon.
Pipeline installation including the 2 x PLEM Structures one at each end of the pipeline system. The Pipeline is 14" carbon steel line, routed from Victory well location to the hot tap tee location on existing GLA pipeline.
Note; the Victory wellsite is within an Offshore Development Area and as such, is not for entry by trawlers.
See detailed map on our bulletin website
Subsea Seismic Nodes - Leman Field
Please be advised that 12 retrievable nodes will be deployed on the seabed in the Leman Field as part of upcoming spot seismic survey.
12 retrievable nodes will be deployed on the seabed for the duration of upcoming seismic survey - their deployment is anticipated from October 25th 2024 until March 31st 2025. These nodes are 1m x 1m in size, the ballast weighing 26kg with a 10kg bouyant. These nodes will not be marked by a surface buoy.
See detailed map on our bulletin website
Acoustic Monitor - Culzean Field
In preparation for the installation of a floating Wind Turbine at Culzean - an acoustic device will be deployed near to the proposed wind turbine location at the Culzean field. The acoustic device will be at the location noted below - but will extend to a total height of 25m above the seabed. The device will deployed from 24th September 2024 (depending on weather) and will be in place for approx. six months.
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Hazardous Structure - North West Hutton Platform Footings
Please note that the four footings of the decommissioned North West Hutton Platform are not included on the current FishSAFE information (v48). This omission will be corrected in the next data issue. The area is covered by a 500m advisory zone, as the platform footings remain in place post-decommissioning and represent a significant snagging risk.
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Valaris V121 over Shearwater Alpha
Valaris V121 MODU jack-up rig will be situated over Shearwater Alpha platform. Valaris V121 MODU will be on location at Shearwater until June 2026.
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