Brent Delta Decommissioning

  • July 31, 2016
Project Description

The Brent Delta platform was located in the East Shetland area of the North Sea, 185km north-east of Shetland and was operational between 1977 and 2011.  As the first asset scheduled for decommissioning and topside removal within the Brent field, the Delta platform required an extensive series of engineering modification and removal works.

We provided technical support to Wood Group, leading their electrical engineering team through a series of critical decommissioning workscopes, which included:

  • final commissioning and close-out stage for 3no. 1.4MVA temporary diesel generators to maintain platform power after the duel-fuelled Solar gas turbines had been decommissioned
  • in-leg isolation, pumping and clearance packages for temporary drawdown to facilitate leg strip-out and cutting operations
  • re-boarding power modifications and preservation works to enable safe and speedy hook-up and power-on to contractor tooling after an unmanned period for the platform

The Brent Delta topside was finally lifted by the Allseas Pioneering Spirit in the summer of 2017 and was sailed back to the Able yard in Teesside for final decommissioning.

*Allseas lift photo credit to Navingo BV