BP contracts Babcock for Shetland area subsea package

Offshore staff

ROSYTH, UK – BP has awarded Babcock a £30 million-plus ($48 million) contract for subsea structures for the Quad 204 offshore redevelopment project, 130 km (81 mi) west of Shetland.

This involves installation of a new FPSO to replace the existing production system; extending the existing subsea system with 15 new or replacement flowlines and 21 new or replacement risers; and drilling 14 new wells in addition to the 52 existing wells. The aim is to sustain production from the Schiehallion and Loyal fields through 2035.

Babcock will fabricate 74 modules in carbon steel for the subsea system with a total weight of 2,300 metric tons (2,535 tons). These will comprise 44 process fluid handling structures, including eight different manifolds, weighing from 56-131 metric tons (62-144 tons), with the largest measuring 10.8 x 10.8 x 9.2 m (35.4 x 35.4 x 30.2 ft); flowline and riser terminations; three subsea isolation valve structures; and 30 control distribution structures, including two 20-metric ton (22-ton) dynamic umbilical termination assemblies and 10-12-metric ton (11-13-ton) umbilical terminations. 

All structures will be fabricated at Babcock’s Rosyth facility, north of Edinburgh, fitted with pipework, valves and controls, and fully tested prior to shipment. Construction starts in March and will continue for two years.


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