Extending lifetime on Sigyn
23/03/2017 The Norwegian Petroleum Directorate has granted consent for continued use of the subsea facilities on the Sigyn field in the North Sea from the end of 2017 until the end of 2022.
In its application, operator ExxonMobil refers to current estimates which indicate production until the end of 2022.
Sigyn’s subsea facilities comprise wells and a subsea template, a pipeline to Sleipner A, as well as an umbilical for controlling and monitoring of wells.
A new development well was drilled on Sigyn in 2016, which has contributed to the extended lifetime. The Sigyn field encompasses the deposits Sigyn Vest, which contains gas and condensate, and Sigyn Øst, which contains light oil. The field was developed with a subsea template connected to the Sleipner Øst platform. Production started in 2002.
Original oil deposits amounted to 1.2 million standard cubic metres (7.5 million barrels). Remaining oil to produce is estimated at 0.9 million standard cubic metres (5.6 million barrels). Out of the original gas reserves of 8 million standard cubic metres, about 1 million remains to produce.
The licensees in Sigyn are ExxonMobil with 40 per cent and Statoil with 60 per cent.