C-Innovation has completed the decommissioning of the Joliet tension leg platform (TLP) in the Gulf of America.
Joliet was the oldest TLP installed in the Gulf (since 1989) in 1,725ft of water. The decommissioning contract involved the MSV Island Venture, along with its ROVs, cranes and back deck support services.
Island Venture was responsible for cutting the two 8 inch and 10 inch flexible risers which were then abandoned in a pre-determined area of the sea floor.
Additionally, the scope included the detaching of 12 mooring tendons from the Joliet TLP. The tendons, each measuring over 1,700ft long, were cut into 305 separate sections aboard the Island Venture and transferred to an OSV to transport to shore.
George Wilson, Project Manager at C-Innovation, said, “The C-Innovation team executed the project safely and efficiently, competing it ahead of schedule without any accidents or incidents. Our success was driven by strong offshore leadership, careful planning, a focus on safety and the lift capacity of the Island Venture crane.
“The original agreement was for 26 days with extension options, which were exercised, bringing the total to 36 days. The contract was signed on 15 January, 2025, work began on 2 May, and the project was successfully completed on 3 June, 2025.”
