ExxonMobil has received consent from the Norwegian offshore safety body, Petroleum Safety Authority (PSA), to extend the lifetime of the facilities on the Sigyn field, offshore Norway.
ExxonMobil is the operator of the Sigyn field with 40% interest and Statoil is its partner with 60% interest. Sigyn is a gas and condensate field in the Sleipner area of the North Sea, around 12 kilometers south-east of Sleipner Øst. Water depth is around 70 meters.
The Sigyn reservoirs were discovered in 1982 and 1997. A field development was approved in August 2001, and came on stream in December 2002.
The field has been developed using a subsea solution and the wellstream is piped through two lines to the Statoil-operated Sleipner A platform, which also controls production remotely. Exxon is responsible for reservoir management. The gas is exported via the dry gas system from Sleipner Riser, while the condensate is exported through the dedicated pipeline to Kårstø north of Stavanger.
According to the safety body, production was originally estimated to last until 2017, but new calculations show that it can be sustained until 2022. ExxonMobil has therefore applied for consent to extend the lifetime of the subsea facility at Sigyn and the associated wells, pipelines and control cables for managing and monitoring the wells.
The PSA has now granted ExxonMobil consent to extend the lifetime until December 31, 2022.
Offshore Energy Today Staff