Fossil Energy – Decommissioning
EnQuest has opted for Pioneering Spirit’s single-lift technology for the removal of the Heather Alpha platform topsides in the UK northern North Sea.
The UK oil and gas company has awarded Allseas the engineering, preparation, removal and disposal contract for the near 13,000-tonne topsides.
Heather is a fully integrated offshore installation consisting of modular topsides and piled steel jacket, located approximately 460 km northeast of Aberdeen in a water depth of 143 m. It is a fixed installation providing manned production, drilling, and utilities facilities.
Preparations will begin next year with the lift itself scheduled for 2025.