KCA Deutag said that its engineering division RDS has commenced work on the Clair Ridge drilling facilities design.
RDS has been contracted by BP on behalf of Chevron ConocoPhillips, Hess and Shell.
Twenty London-based engineers are currently working at the project, located about 75km west of the Shetland Isles in 140m of water.
The facility will be designed to accommodate at least 28 wells, with a subsea template for a number of predrilled wells subsequently tied back to the platform, with the remainder being drilled directly from the platform, RDS said.
The next stage of the project’s development will target the elongated up-thrown part of the field to the north of Clair Phase 1 platform, which achieved first oil in 2005.