In 2016, Petrofac was awarded a Duty Holder contract from BP to support the late life management and decommissioning of the Miller platform.
Within this scope Petrofac managed all aspects of on and offshore activities in support of BP’s decommissioning programme.
The last day of production on Miller was in July 2007. BP undertook well abandonment and topsides clean up on the asset before the project team completed the topside removal in June 2018. Successful removal of the jacket followed in August 2018.
Our responsibility as Duty Holder enabled BP – as licence owner – to remain focused on removal activities, while we ensured safe operations, asset maintenance and integrity throughout the preparatory and removal works.
Collaboration is key
Early engagement was key to our approach. It allows us to support clients in optimising the planning and execution of decommissioning services and support the transition of risk between operator and contractor. It also offers the opportunity for open dialogue around roles and responsibilities.
Once an asset moves to the decommissioning phase, mind-sets must also transition, from an ‘operations’ to ‘project-led’ culture. This ensures that decommissioning activity is not hampered by systems and processes designed for ongoing operations, and that removal is conducted safely and efficiently within the Safety Case environment.
By engaging early with BP, we could help facilitate fit-for-purpose on and offshore organisation and service structure. In addition, we developed an integrated team culture with the heavy lift vessel contractor, working together during the preparation phase across logistics, onshore/base/storage, waste management, permit development and job planning to allow for a tailored execution model.
By working collaboratively in this way, using project specific on and offshore management and delivery teams, we achieved many key successes for the Miller project.
Implementation of fit for purpose Control of Work and management systems
Integrated planning process for both core asset activities in addition to removal activity
Optimised maintenance programme, supported by a multi-skilled workforce
Management and revision of the Safety Case on behalf of BP in line with project stages
Decommissioning support services which include modifications, assurance and de-risking scope to support removal work
Review of removal scope work packs, development of supporting isolations, permits, lifting plans and another supporting material with ongoing technical authority support
Shared performance measures and project culture
Accident and incident free throughout the transition period and through to completion of Miller final removal
Successful completion of both topsides and jacket removal against both budget and plan, just 24 months from contract award
Shortlisted for Oil and Gas UK’s 2018 ‘Excellence in Decommissioning’ award