OneSubsea scores Utgard subsea system work

OneSubsea has been awarded an engineering, procurement and construction contract by Statoil to supply the subsea production system for the Utgard gas and condensate discovery in the North Sea.

The scope of the contract includes a subsea template manifold system, two subsea wellheads and vertical monobore subsea trees, production control system, and associated intervention and workover tooling. This follows the execution of a master service agreement with Statoil in January 2016.

“We look forward to supporting Statoil in the commercial development of Utgard through the delivery of the subsea production system,” said Mike Garding, president, OneSubsea, Schlumberger.

“In collaboration with Statoil, we are developing a new subsea wellhead system that is particularly suitable for the fairly shallow waters in the Utgard field; and we are committed to supporting Statoil in their drive to break the cost curve.”

OneSubsea, a Schlumberger subsidiary, said it had worked together with Statoil to qualify a vertical monobore subsea tree as a standardized solution for Statoil’s subsea developments.

The vertical trees, which are part of the contract deliverables, will be assembled and tested at the OneSubsea facility in Horsøy, Norway.

Utgard

Utgard is a gas and condensate field straddling the UK-Norway median line, with the majority of the reserves being located on the Norwegian side.

Statoil submitted the plan for development for Utgard gas and condensate discovery in the North Sea to Norwegian and UK authorities on August 9, 2016. The Norwegian authorities approved the plan earlier this week.

Recoverable volumes from the field are estimated at 56 million barrels of oil equivalents. Utgard was discovered in 1982 and is located 21 kilometers from the Sleipner field. The discovery has been considered for development on several occasions in the past.

The field development includes two wells in a standard subsea concept, with one drilling target on each side of the median line. The installations and infrastructure will be located in the Norwegian sector. Gas and condensate will be piped through a new pipeline to the Sleipner field for processing and further transportation to the market.

The gas in Utgard has a high CO2 content, and will benefit from carbon cleaning and storage facilities at Sleipner.

Utgard is planned to come on stream in the fourth quarter of 2019.

The license ownership interests are as follows: Statoil (operator – 38,44%), Statoil (U.K.) Limited (38%), Lotos Exploration and Production Norge (17,36%) and KUFPEC Norway (6,20%).

Offshore Energy Today Staff

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