General – Decommissioning
Allseas has successfully deployed its new jacket lifting technology for the first time to remove CNR International’s Ninian Northern jacket from the northern North Sea and transport it intact to shore for recycling.
Weighing in at 8100 tonnes, the first commercial lift with Pioneering Spirit’s revolutionary Jacket lift system (JLS) is one of the heaviest offshore jacket lifts ever, but remains well within the system’s 20,000-tonne singlelift capacity.
Pioneering Spirit arrived in the Ninian field, 160 km northeast of the Shetland Islands, on 14 April. A week later, after final preparations and leg cutting, the eight-legged jacket was lifted safely out of the water and lowered onto the deck for transit.
The jacket will be delivered to the Veolia yard in Dales Voe, Shetlands. The facility targets 98% steel reuse.
Yesterday’s lift successfully concludes two years of planning and design, which started with the safe and successful single-lift removal of the 14,200 t Ninian Northern platform topsides by Pioneering Spirit in 2020.
“CNR International’s decision to select Pioneering Spirit for the Ninian Northern jacket removal demonstrates the industry’s confidence in Allseas’ innovative engineering solutions and further reinforces our reputation as a frontrunner in the global offshore energy market,” says Allseas President Edward Heerema.