ABERDEEN, UK – bp has submitted proposals for the removal of the FPSO Petrojarl Foinaven from the Foinaven field 120 mi (193 km) west of Shetland and the recovery of associated mooring systems, risers, and dynamic umbilicals.
The vessel, which has reached the end of its 25-year service life in a harsh operating environment, is owned by Petrojarl 4 DA and operated on a bareboat charter.
Following removal, it will be redelivered to Petrojarl 4 DA at a port in the UK or EU, with the latter re-assuming full responsibility, including recycling to be performed at an approved shipyard in compliance with relevant UK legislation.
The FPSO will remain on station to support initial decommissioning activities, i.e. flushing and deoiling of the manifolds, risers, subsea pipelines and umbilicals, and to support isolations for the subsea wells.
Currently bp is assessing its future options for the Foinaven field: these include a full or partial redevelopment, or full decommissioning. The pipelines, umbilicals, and risers will be wet stored and managed through a risk-based inspection and maintenance program to ensure future safe recovery.
Foinaven was the company’s first field development in the Atlantic west of the UK, followed soon afterwards by Schiehallion. Its facilities include three subsea drill centers, two water injection well sites, a gas disposal center, and control umbilical distribution assemblies.
Golar-Nor (UK) (part of the Altera Infrastructure Group) operates and serves as duty holder for the vessel.
Prior to shutdown produced gas was either injected or exported via 20-in. pipelines linking Foinaven with the Schiehallion and Magnus fields to the Sullom Voe terminal on Shetland.