Rig: West Navigator

Name West Navigator
Owner North Atlantic Navigator Ltd.
Manager North Atlantic Drilling AS
Rig Type Drillship
Sub Type Ultradeep Water
Jackup Type N/A
Max Water Depth (ft) 8200
Max Drill Depth (ft) 30000
Dimensions (ft) 830 x 138 x 52
Leg Length (ft) --
Competitive Yes

Current Location

Country Norway
Region NWECS

Drilling Equipment

Drawworks Type AKMH Wirth
Drawworks HP --
Mud Pumps Type --
Top Drive Aker Maritime Hydraulics DDM-750
Hookload Capacity (lbs) 1500000

Rig Construction Details

Rig Design Samsung
Rig Model S10000E
Year Built 1998
Country of Build South Korea
Yard Name Geoje (Koje) Shipyard
Group Yard Name Samsung Heavy Industries (SHI)

Rig Contract Details

Operating Status Cold Stacked
Operator Rosneft

Rig Images

News

13 Mar 2015

North Atlantic Drilling receives notice of termination for the West Navigator

North Atlantic Drilling Ltd. (NADL) has received a notice of termination from Rosneft of the service order for the West Navigator in connection with the Framework Agreement. The drillship was indicatively scheduled to commence operations under its five-year contract with Rosneft during the summer of 2015, which would have required earlier mobilisation. As outlined in our fourth quarter 2014 results report, NADL believes that it will be very challenging to close the transactions with Rosneft on the same terms or in the timeframe contemplated in the executed agreements, and that there were significant risks attached to the US$4.1 billion order backlog related to the drilling contracts with Rosneft. The termination of the service order for West Navigator will reduce NADL's contract backlog by US$1.0 bn. NADL will be marketing the West Navigator for alternative future opportunities, however remains in discussions with Rosneft to explore various alternatives for future co-operation.

8 Dec 2014

Centrica completes drilling of Ivory well in Norway

Centrica Resources Norge AS, operator of production licence 528 B, is about to complete drilling of wildcat well 6707/10-3 S. The well was drilled about 20 kilometres northeast of the Aasta Hansteen field in the Norwegian Sea. The primary and secondary exploration targets for the well were proving petroleum in Upper Cretaceous reservoir rocks, the Kvitnos and Lysing formations, respectively. Well 6707/10-3 S encountered a total gas column of about 12 metres in the Kvitnos formation with good reservoir properties. The entire reservoir zone, including the water zone, has a gross thickness of about 200 metres. Reservoir rocks were encountered in the secondary exploration target with a total of 25 metres thickness in the Lysing formation, which was tight and aquiferous. Preliminary calculations of the size of the discovery are between two and eight billion standard cubic metres (Sm3) of recoverable gas. The licensees will assess well results with regard to profitability. The well was not formation tested, but extensive data acquisition and sampling were carried out. This is the first exploration well in production licence 528 B. The licence was awarded in the 21st licensing round, as an addition to production licence 528. Well 6707/10-3 S was drilled to a vertical depth of 4264 metres below the sea surface, and was terminated in the Lange formation in the Lower Cretaceous. Water depth is 1421 metres. The well will now be permanently plugged and abandoned. Well 6707/10-3 S was drilled by the West Navigator drill ship.

2 Dec 2014

Centrica strikes gas at Ivory prospect

Atlantic Petroleum is pleased to announce that the PL528 B Ivory exploration well in the Norwegian Sea has discovered gas. The 6707/10-3S well tested the westernmost segment of the Ivory structure, one of several prospects within the license. The primary objective of the Ivory well was to prove the presence of hydrocarbons in the Kvitnos Formation sandstones. A thick, well developed deep marine fan was encountered 61 m shallower than prognosed. The well was drilled down-dip from the crest of the structure and encountered a 12 m gas-zone. In the Lysing Formation the well penetrated a water-bearing sand. Extensive data acquisition has been performed including cores, fluid samples, pressure points, wireline logs and VSP. These data will now be fully analysed. Further work is needed to evaluate the resource potential of the discovery. Given commercial, the discovery can be tied back to the Statoil-operated Aasta Hansteen field, located 20 km to the southwest, and which is due to come on stream in 2017. The exploration well was drilled to a total depth of 4,264 m below sea level by the West Navigator drill ship. The well will now be permanently plugged and abandoned.

6 Oct 2014

Centrica spuds Ivory well in Norway

Atlantic Petroleum has announced that the Ivory well (6707/10-3 S) in PL 528B has been successfully spudded. Atlantic Petroleum Norge has a 9% working interest in PL 528B located in the Norwegian Sea. The licence is located adjacent to the Statoil-operated Aasta Hansteen field development which is due to come on stream in 2017. The Ivory well is being drilled by the ‘West Navigator’ drillship. The well is planned to drill to a total depth of around 4,200 m TVD and operations are anticipated to take 60-90 days. This will be extended in the case of discovery. The PL528 licence contains the Ivory prospect which is gas prone with Direct Hydrocarbon Indicator (DHI) support. Gross recoverable resources have been estimated to be 50- 230 mmboe for the main target. The licence also holds several other large prospects, some with DHI support. Centrica Resources (Norge) is operator of the licence with an equity interest of 40%. Other licence partners are Statoil Petroleum 35%, Rocksource Exploration Norway 10%, Atlantic Petroleum Norge 9% and Repsol Exploration Norge 6%.

29 Sep 2014

Centrica given approval to drill Ivory prospect

The Norwegian Petroleum Directorate (NPD) has granted Centrica Resources (Norge) AS a drilling permit for wellbore 6707/10-3, cf. Section 8 of the Resource Management Regulations. Wellbore 6707/10-3 will be drilled from the 'West Navigator' drilling facility at position 67°11'31.58 N and 7°19'34.06" east. The drilling programme for wellbore 6707/10-3 relates to drilling of a wildcat well in production licence 528 B. Centrica Resources (Norge) AS is the operator with an ownership interest of 40 per cent. The other licensees are Statoil Petroleum AS (35 per cent), Atlantic Petroleum Norge AS (15 per cent) and Rocksource Exploration Norway AS (10 per cent). The area in this licence consists of part of block 6707/10. The well will be drilled about 20 kilometres north-east of the Aasta Hansteen field. Production licence 528 B was awarded on 13 May 2011) (21st licensing round on the Norwegian shelf.). This is the first well to be drilled in the licence. The permit is contingent upon the operator securing all other permits and consents required by the authorities before the drilling activity commences.

8 Aug 2014

Centrica set to use 'West Navigator' to drill Ivory prospect

Centrica Resources (Norge) AS has received consent for exploration drilling using the ‘West Navigator’ mobile drilling facility to drill well 6707/10-3 S, in production licences 528 and 528 B. The well is in the Norwegian Sea, around 293 km from Brønnøysund and 20 km from the Aasta Hansteen field. Water depth at the site is approx. 280 metres. Drilling is planned to begin in August 2014, with a duration of around 78 days, depending on whether a discovery is made. ‘West Navigator’ is owned and operated by North Atlantic Norway Limited. The facility received Acknowledgement of Compliance (AoC) in September 2000.

30 Jul 2014

Rosneft contracts a number of rigs from NADL

North Atlantic Drilling Ltd. (NADL) has announced the signing of six binding offshore contracts with Rosneft Oil Company (Rosneft). The total revenue potential for the six contracts exclusive of mobilization is approximately USD4.25 billion. According to the agreement, any break rights expire after 100 days. The executed contracts include five year contracts for the ‘West Navigator’, the ‘West Rigel’, the ‘West Alpha’, two newbuild CJ-54 class rigs, and a 2.5 year contract for Northern Offshores ‘Energy Endeavour’ Gusto class jackup rig. These contracts commence in Russian waters from 2015 through 2017. These binding contracts are consistent with the provisions of the Investment and Cooperation Agreement between Seadrill, NADL and Rosneft announced on May 24th, 2014. The ‘West Alpha’ is already in Russia and is drilling for ExxonMobil under its partnership with Rosneft. The two CJ-54 newbuild jackups are yet to be identified, the only two units currently being built to this specification are being constructed for Malta Oil & Gas Ltd at Drydocks World in Dubai and it has not been confirmed whether or not NADL has struck a deal to buy these newbuilds.

15 Mar 2014

New well on Alve

An appraisal well on Alve was spudded yesterday, 14 March, by operator Statoil. This small gas and condensate discovery in the Norwegian Sea lies close to the group’s Norne field. “We’re hoping to establish that the field is considerably larger than has already been proven,” explains Knut Chr Grindstad, exploration manager for the Halten/Nordland cluster. “In our view, there’s a good chance that possible additional resources in Alve will be oil.” The partners must identify more oil or gas in the discovery if they are to achieve a profitable development, he explains. Maturing and harnessing smaller fields located close to existing infrastructure is also important for Statoil, Mr Grindstad adds. The Alve well is being drilled by the West Navigator drill ship (formerly West Navion), with six weeks assigned for the operation. Once this appraisal has been completed, the vessel is due to drill a further exploration well in the Halten/Nordland area. Statoil has a 50 per cent interest in Alve. The other owners are Shell with 40 per cent and Norsk Hydro with 10 per cent.

28 Jan 2014

Faroe Petroleum close to completing Novus well in Norwegian Sea

Faroe Petroleum Norge AS, operator of production licence 645, is about to complete drilling of wildcat well 6507/10-2 S. The well was drilled about 13 kilometres south of the Heidrun platform. The primary exploration target for the well was to prove petroleum in Middle Jurassic reservoir rocks (Garn and Ile formations). The secondary exploration target was to prove petroleum in Lower Jurassic reservoir rocks (Tilje formation). An approx. 12.5-metre oil column and approx. 12-metre gas column were encountered in the Garn formation, with thicker reservoir rocks and better reservoir quality than expected. The lower part of the Garn formation is aquiferous. Preliminary estimation of the size of the discovery is between 1 and 2.5 million Sm3 of recoverable oil equivalents. The other exploration targets in the Ile and Tilje formations are aquiferous. Further delineation of the discovery will be considered. The well was not formation tested, but extensive data acquisition and sampling have been carried out. This is the first exploration well in production licence 645. The licence was awarded in APA 2011. The well was drilled to a vertical depth of 2957 metres below the sea surface, and was terminated in the Åre formation in the Lower Jurassic. Water depth is 298 metres. The well will now be permanently plugged and abandoned. Well 6507/10-2 S was drilled by West Navigator which will continue working on contract for Norske Shell AS on the Ormen Lange field.

8 Nov 2013

Faroe Petroleum sublets 'West Navigator' drillship to drill Novus prospect

The Norwegian Petroleum Directorate has granted Faroe Petroleum Norge AS a drilling permit for well 6507/10-2 S, cf. Section 8 of the Resource Management Regulations. Well 6507/10-2 S will be drilled from the West Navigator drilling facility at position 65°12'48.46'' north and 7°16'59.03'' east. The drilling programme for well 6507/10-2 S concerns drilling of a wildcat well in production licence 645. Faroe Petroleum Norge AS is the operator with an ownership interest of 50 per cent. The other licensees are Centrica Resources (Norge) AS (40 per cent), Skagen44 AS (5 per cent) and Concedo ASA (5 per cent). The area in this licence consists of parts of blocks 6507/7 and 6507/10. The well will be drilled approx. 14 kilometres south of Heidrun. Production licence 645 was awarded on 3 February 2012 (APA 2011). This is the first well to be drilled in the licence. The permit is contingent upon the operator securing all other permits and consents required by the authorities prior to commencing the drilling activity.

8 Dec 2004

Discovery on UKCS

ChevronTexaco has reported a significant oil and gas discovery in the Rosebank/Lochnagar structure on the UK continental shelf (UKCS), where Statoil holds a 30 per cent interest. Located on the Atlantic Margin, close to the boundary between the UKCS and the Faroese sector, this strike was made with well 213/27-1Z in 1,100 metres of water. Drilling was carried out by the West Navigator in the Faroe-Shetland Channel to a total measured depth of 3,607 metres, and completed on 30 August. No testing was done. ChevronTexaco and its partners plan to drill additional wells to appraise the size of this discovery. "We are very optimistic about the significance of this discovery to Statoil," reports Gregory Himes, vice president for global exploration for the former Soviet Union and Europe, in the International Exploration & Production business area. "We hope this discovery will lead to further exploration success in the UK and Faroes." Rosebank/Lochnagar lies in licence P1026, which embraces blocks 213/26 and 213/27. Statoil took a decision to farm into this licence in January 2004. Prior to drilling the discovery, the partnership applied for and was awarded interests in the five blocks surrounding the prospect during the 22nd round. Statoil has a 30 per cent interest in all five blocks. In addition to operator ChevronTexaco, with 40 per cent, and Statoil, partners in the licence are OMV with 20 per cent and Dong with 10 per cent.

8 Sep 2004

Selling West Navigator stake

A letter of intent has been concluded by Statoil covering the sale of its 50 per cent interest in the West Navigator deepwater drill ship to Smedvig of Stavanger. The agreed purchase price is USD 175 million. Under the agreement, Smedvig will receive Statoil’s share of cash flow from the vessel from 1 May 2004. “Ownership of mobile drilling units is not defined as part of our core business,” says project manager Arne Wyller Christensen at Statoil. “We have accordingly evaluated the sale of our interest in West Navigator, and recent market developments have helped us to secure an acceptable price for our holding.” Current charters held for the drill ship provide it with employment until the fourth quarter of 2007. The agreement is conditional on board approval.

24 May 2004

Oil find in Linerle

An oil discovery has been made by Statoil in its Linerle prospect north-east of the Norne field in the Norwegian Sea. Knut Chr Grindstad, exploration manager for the Halten/Nordland cluster in Harstad, says it is too early to say anything about the volume or type of oil in the deposit. "We've previously discovered oil in the nearby Falk structure, and Linerle underpins our strategy to realise a collective development of these parts," says Mr Grindstad. But the Falk oil has a higher density than average, and preliminary analyses indicate that the oil in Linerle is also heavier. An assessment will now be made to see whether a profitable development is feasible. "And there could be more oil in this sequence of finds in the Norne area," adds Mr Grindstad. It was recently resolved to submit a plan for development and operation of Svale and Stær, two other oil discoveries near Norne. There will however still be available capacity on the Norne production ship after this development. The West Navigator drill ship began exploratory drilling on 30 April, and this was completed on 23 May. Linerle is located in block 6608/11 in production licence 128 (the Norne licence). Statoil is operator, with Eni, Hydro, Petoro and Shell/Enterprise as partners.

30 Apr 2004

Linerle wildcat spudded

A first exploration well has been spudded by Statoil on its Linerle prospect close to the Norne field in the Norwegian Sea today, 30 April. Located within block 6608/11 in production licence 128, this wildcat lies roughly 20 kilometres north-east of Norne. “The Linerle prospect has a potential to contain oil,” says Knut Chr Grindstad, exploration manager for the Halten/Nordland cluster. “It belongs to a sequence which also includes the Svale and Falk structures, where recoverable oil deposits have already been proven.” Being drilled from the West Navigator drill ship, the well is expected to take about 20 days to complete.

23 Jun 2003

Spudded on Ellida

The first wildcat on Statoil’s Ellida – or Grip High – prospect in the Norwegian Sea was spudded in about 1,200 metres of water on 20 June by the West Navigator drill ship. Located in block 6405/7, allocated in May 2002 as part of Norway’s 17th offshore licensing round, it lies 60 kilometres north of Norsk Hydro’s Ormen Lange development. “We’re looking for gas in this well,” explains Kent Høgseth, exploration manager for the deepwater part of the Norwegian Sea. He adds that the wildcat is being drilled in a little-explored part of the continental shelf, and that the prospects of making a find are therefore a little uncertain. The well is expected to take 2.5 months to complete. Operator Statoil has a 30 per cent interest in production licence 281, with ConocoPhillips holding 10 per cent and Norske Shell, BP and Petoro 20 per cent apiece.

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