Abstract
This paper describes the Buchan development scheme which is based on subsea completions tied into a subsea manifold, connected in turn by a flexible riser to a floating production platform. Oil export is by tanker from a single point mooring buoy. The system is similar to, but more complex than that used in the Argyll field.
Overall the project has exceeded budget and programme largely due to delay in completing the conversion of a semi-submersible drilling rig to a production platform. Subsea work has gone remarkably well. The paper comments on these facts and suggests that improved front-end engineering and greater control of contractors would have improved performance. It suggests that a purpose-built platform is a better proposition than a conversion. It concludes that despite the problems encountered this type of development is viable.
