Our Projects
Subsea 7 continue to be at the forefront of our industry – wherever and however deep that may be.
The following indicative case studies summarise a wide range of IRM projects that we have carried out throughout the globe.
Subsea 7 delivered an ROV deployable cutting solution to disconnect 5 risers and moorings from an FPSO.
Subsea 7 successfully completed a high speed, high definition pipeline General Visual Inspection (GVI) for BP, West of Shetland from the Normand Subsea, using a Hercules Workclass ROV.
Discovered in 1990, Foinaven was the first UK deepwater field developed in the Atlantic margin in water depths of 550 metres. Schiehallion followed three years later and both remain significant assets.
Phase 1: A leak was discovered from the WW16 water injection tree assembly. The source of the leak was found to be a ¼” NPT port on a mounting block, fitted to a flowmeter spool piece within the tree structure, with very difficult and limited access. We removed initial steelwork and grating to install the first leak repair clamp behind ballast weights.
The Emergency Pipeline Repair System (EPRS) is designed to provide an emergency pipeline repair solution for pipelines located in various water depths of up to 1,350m and up to 44-inch in diameter.
A tree manufacturer experienced slower than expected closure times of their tree valves when a well was flowed at maximum capacity. Based on prior experiences this issue was attributed to a failure in the existing compensation and transfer barrier accumulators. In order to prevent a need to retrieve the tree it was requested that the entire circuit, including compensators, be replaced subsea.
