Rig: West Venture

Name West Venture
Owner North Atlantic Venture Ltd.
Manager North Atlantic Drilling AS
Rig Type Semisub
Sub Type Deepwater Floater
Jackup Type --
Max Water Depth (ft) 5905
Max Drill Depth (ft) 30000
Dimensions (ft) 386 x 238 x 77
Leg Length (ft) --
Competitive Yes

Current Location

Country Norway
Region NWECS

Drilling Equipment

Drawworks Type AKMH Wirth GH 3000 EG
Drawworks HP 3000
Mud Pumps Type National Oilwell Varco 14-P-220 Triplex
Top Drive Aker Maritime Hydraulics DDM-650-L-HY
Hookload Capacity (lbs) 1300000

Rig Construction Details

Rig Design Kvaerner Maritime
Rig Model KMAR CS-45
Year Built 1999
Country of Build Japan
Yard Name Ariake Shipyard
Group Yard Name Hitachi Zosen Corporation

Rig Contract Details

Operating Status Cold Stacked
Operator --

Rig Images

News

6 Apr 2010

Extending Seadrill rig contract

Statoil has offered Seadrill a new five-year contract for the use of the West Venture rig on the Norwegian continental shelf (NCS). The contract is worth about USD 712 million. “This contract will be important in ensuring that we are able to reach our production targets,” says Geir Slora, Statoil’s senior vice president for drilling and wells. Plans call for the contract to take effect from 1 August 2010, one year before the present contract for Statoil’s use of this rig expires. Under the terms of the new contract, the rig will be used by Statoil until August 2015. Statoil has the option up until January 2011 to extend the contract by a further one or two years at the same rig price. Rig capacity needed Statoil aims to maintain its present production level on the NCS for the next 10 years. Enhanced recovery from existing fields, quick and efficient development of new fields and an active exploration programme are the key measures for achieving this goal. To effectuate these measures, it is crucial that rig capacity is available. The new contract means that Statoil will not exercise the one-year extension option in the existing contract. “We are well pleased with the terms of the agreement and we see that the prices in the rig market are now at a more normal level,” says Anders Opedal, Statoil’s senior vice president for procurement. West Venture is a semi-submersible fifth-generation rig. It has been in operation for Statoil on the Troll field in the North Sea since it was built in 2000.

22 Aug 2005

Troll oil discovery

Hydro has proven oil deposits in the Brent formation, the deeper rock types located under the oil and gas producing layers on the Troll field in the North Sea. Hydro regards the opportunities for commercial exploitation of the Brent formation oil as encouraging, given that the find is situated close to existing installations on the Troll field. A well drilled under the oil and gas producing formations on the Troll field has proved the presence of additional oil deposits in the Brent formation. Further analyses and delineation drilling must be carried out to obtain secure data regarding the expected volume of additional reserves and recovery rate. A production test of the formation will also be carried out. The well was drilled by the West Venture rig in the area northeast for Troll C platform. The find is the fourth made this year by Hydro as a Norwegian Continental Shelf operator. Previous discoveries were on the Oseberg Sør field and on the Astero and Peon prospects. Hydro currently produces oil and gas from reservoirs in the Sognefjord and Fensfjord formations. The Brent formation, known as a petroleum-bearing reservoir rock-type in other areas of the North Sea, lies 500 meters under these formations. For example, the oil and gas reserves on the Oseberg field are situated in the Brent formation. Hydro currently produces some 260,000 barrels of oil on the Troll B and Troll C platforms. By developing advanced subsea solutions, plus innovative drilling and well technology, Hydro’s petroleum technologists have managed to exploit the extremely thin oil zone on Troll. As of today, 106 production wells have been drilled, of which 36 are multilateral. The well was drilled at a depth of 341 meters and down to 2,055 meters below sea-level. The West Venture rig will now drill a new production well on Troll Oil.

12 Sep 2004

Hydro extends rig contract on Troll

West Venture was hired in 2000 to drill production wells on the Troll field. The development of advanced drilling and well technology has contributed to Troll Oil now being the highest oil producer on the Norwegian continental shelf, with a daily production level of around 400,000 barrels. Today Hydro produces oil from 101 wells on the Troll field, 28 of which are three-branch wells. These help have lower drilling costs and allow greater recovery of the oil reserves. Hydro is planning to have two drilling rigs in activity on Troll Oil in the near future to keep up high production and value creation from the field.

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