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Conoco confirms decom plan for Southern North Sea

US oil firm ConocoPhillips has revealed its plans for decommissioning a host of southern North Sea installations.

It comes on the same day ConocoPhillips confirmed the Theddlethorpe Gas Terminal in Lincolnshire had stopped sending gas to the grid.

The decommissioning plan covers the Viking KD, LD and AR installations, the four topsides that make up the Viking Bravo hub, and the Vixen VM subsea manifold.

Conoco has also handed in a separate programme for the Victor JD installation and the JM subsea tieback.

The Viking and Vixen fields and associated pipelines are located 85 miles east of Theddlethorpe.

The first well in the Viking area was drilled in 1965, with gas discovered in the Viking B field.

Production from the Viking reservoirs commenced in 1972 from two manned bridge linked complexes Viking A and Viking B.

Further exploration wells followed through 1973.

Well plugging and abandonment kicked off in 2015.

The topside removal and abandonment process should last until mid-2021.

A spokeswoman for ConocoPhillips said: “The flow of natural gas from the Theddlethorpe Gas Terminal to the UK National Grid ceased at 5am this Comorning after 46 years of production operations.

“Although ConocoPhillips production has ceased in the SNS, our operations will continue in the area for a number of years as we progress through the decommissioning work-scopes for the wells, platforms and pipelines in a safe and environmentally responsible manner.”

Published: 15-08-2018

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