Allseas vessel lays infield pipes for GTA project offshore West Africa
Feb. 21, 2024
Two months after reaching the field, the vessel’s production team welded, scanned and field joint coated the final piece of pipe for the second 16-inch gas export pipeline.
Two months after reaching the field, the vessel’s production team welded, scanned and field joint coated the final piece of pipe for the second 16-inch gas export pipeline.
The pipeline, said to have been safely landed in a 2-m target box at a water depth of 2,400 m, will be recovered in a J-mode configuration to install the termination assembly. It will be using a specially engineered J-mode frame on the vessel’s aft with a 1,000-metric ton load capacity.
Allseas’ teams designed, built and installed the system within eight weeks.
Courtesy Allseas
The pipelay scope covers about 75 km of 16-inch export lines and 10 km of 10-inch CRA infield lines, in water depths exceeding 2,700 m at the deepest point.
Pioneering Spirit’s main firing line and double jointing facilities have run in parallel throughout the campaign. The vessel will conclude offshore works by installing the six remaining flowline termination assemblies.
