We use cookies to help improve your online experience. If you continue to use our website, we will assume that you’re happy with this.
Learn more about cookies and how to change your settings in our Privacy and cookies policy.

Decommissioning of Shelley Field

Costain was contracted by the client to decommission the Shelley FPSO Sevan Voyageur and subsea facilities at the end of the economic field life.

  • Service 1

Premier Oil

  • Service 1

Consultancy and advisory

Costain was contracted by Premier Oil to perform:


The definition phase of decommissioning including the production of the Decommissioning Programme for approval by DECC.

Project management of the decommissioning operations, including:

  • Development and management of a detailed integrated schedule
  • Management of the subsea contractor
  • Interface with the duty holder and FPSO owner
  • Project control and reporting
  • Risk management
  • Interface management
  • HSEQ management
  • Regulatory compliance management

Costain achieved approval of the decommissioning programme, defined the sanction budget and delivered the project in accordance with sanction commitments.

Contact and social


Rob Phillips, Sector Director
0161 910 3444
[email protected]