We use functional cookies for a number of reasons, such as keeping the Costain website reliable and secure and to analyse how our site is being used.
Will you accept our use of non-essential cookies?

Yes No Privacy Notice

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


Laura Hughes, Sector Director - Energy
01628 842444
[email protected]