Decommissioning work on Canadian Natural Resources International’s Ninian North platform in the North Sea continues as Allseas’ Pioneering Spirit heavy lift vessel removed the installation’s jacket from the northern North Sea.
Pioneering Spirit arrived in Ninian field, 160 km northeast of the Shetland Islands, on Apr. 14. A week later, after final preparations and leg cutting, the eight-legged jacket was lifted out of the water and lowered onto the deck for transit.
The offshore construction vessel has since arrived at the deepwater port of Lerwick, in the Shetland Islands, where the 8,100-tonne, 85-m structure will be delivered intact to the Veolia-Peterson yard for recycling.
The lift concludes 2 years of planning and design, which started with the single-lift removal of the 14,200 tonne Ninian Northern platform topsides by Pioneering Spirit in 2020 (OGJ Online, Aug. 31, 2020).