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North Sea’s Vigdis field to see production boost

Dec 06, 2018
3 min read
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Equinor and partners will invest NOK 1.4 billion (US$164 million) in subsea field Vigdis to boost production by almost 11 million barrels.

 Vigdis has been producing oil through the Snorre field for more than 20 years and production can increase through a boosting station, expected to come online in the first quarter of 2021, Equinor said in a statement.

“This is an improved oil recovery project which includes a multiphase boosting station that will increase production from existing wells. This adds new oil barrels at a highly competitive price,” said Torger Rød, Equinor’s senior vice president for project management control.

The boosting station will be connected to the pipeline to enhance the capacity between Vigdis and Snorre A, and will help bring the well stream from the subsea field up to the platform. Thanks to the boosting station wellhead pressure can also be reduced, which further increases production from the wells.

In addition to the subsea boosting station the project will involve some modifications to Snorre A, which receives oil from the Vigdis field, and Snorre B, supplying the new boosting station with power from a new umbilical.

Contract award

The contract for delivering the boosting system, including subsea template and trawling protection, has been awarded to OneSubsea. The contract value is estimated at NOK 700 million.

Engineering starting in December 2018 in Bergen, the assembly will take place at the company’s plant at Horsøy near Bergen. OneSubsea will use several sub-contractors, including Framo Flatøy fabricating the pump and Luster Mekaniske Industri fabricating piping.  More contracts will be awarded in the near future. A total of 500 people will be involved in delivering the Vigdis boosting station.

“A contract for the work to be performed on the Snorre A and B platforms will be awarded later, whereas marine operations will be performed under Equinor’s framework contracts,” Rød said.

Increased productive life

When the Vigdis field came on stream in 1997 it was assumed that the field would produce 200 million barrels of oil. So far, the field has produced twice as much.  Recoverable resources from Vigdis are now estimated at 455 million barrels of oil.

“Through further development in several phases Equinor has continuously developed this field. I am proud that we have successfully increased the value creation from Vigdis, and would like to thank our employees, partners and suppliers who have contributed,” said Jez Averty, Equinor’s senior vice president for Operations South.

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