Norwegian offshore safety watchdog, the Petroleum Safety Authority (PSA), has given consent to ExxonMobil to use the Island Frontier and Island Wellserver vessels for light well intervention at Sigyn field, offshore Norway.
The Sigyn field is in production license 072 in the North Sea where ExxonMobil Exploration and Production Norway is the operator. The field contains gas, condensate, and light oil. Production on the field began in 2002.
Sigyn has been developed using a subsea well template. The well stream is transported to the Sleipner A platform 12 kilometers northwest of the well template. The field is 222 kilometers west of Stavanger and the water depth in the area in 70 meters.
PSA said that ExxonMobil received consent to use two remote light well intervention vessels, the Island Frontier and Island Wellserver, for well intervention at Sigyn.
The agency said that activities are scheduled to start in August and last to the end of 2016. It is uncertain as to which vessel will be used for the well intervention since this depends on optimizing the work schedules for the two vessels.
PSA said that the period may also be extended into 2017 due to the availability of the vessels owned by Island Offshore.
Island Frontier was built in 2004 at the Søviknes yard. It is registered in Norway and classified by DNV GL. Island Frontier was issued with an Acknowledgment of Compliance (AoC) by the PSA in October 2006.
Island Wellserver was built in 2008 at the Aker Langsten yard. It is registered in Norway and classified by DNV GL. Island Wellserver was issued with an Acknowledgment of Compliance (AoC) by the PSA in April 2009.