BP plans to start production at the redeveloped Schiehallion and Loyal fields by the middle of this year, with the 885-foot (270-metre) floating production, storage and offloading vessel Glen Lyon at the centre of the project.

The vessel replaces the Schiehallion FPSO and extends production at Quad 204 to 2035, or beyond.

KBR designed the 21,000-tonne topsides, which include production capacity for a projected 130,000 barrels per day of oil, 220 miilion cubid feet per day of gas and 380,000 bpd of produced water and seawater injection.

HELPING HANDS: Support vessels assisted installation of the Glen Lyon FPSO in 400-metre water depths west of Shetland.