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Subsea 7’s high pressure gas cylinder inspection and test completed while DSV is in dry dock

18th April 2019 at 09:37
Subsea 7’s newly-purchased vessel, Seven Pegasus, has 32 high pressure gas cylinders inspected and tested while the ship has full refit in Croatia

Chesterfield Special Cylinder’s Integrity Management (CSC IM) team completed the entire project using acoustic emission test techniques, so the cylinders could remain within the installation, reducing the need for their costly and time-consuming removal.


The 133m DSV and offshore construction vessel has undergone a major refit before being deployed by Subsea 7.  CSC IM was contracted to carry out the safety-critical inspection and test on the 32-cylinder installation, some of which carry heliox and some air, vital for the safe operation of the ship’s twin-bell 18-person saturation diving system.


Sean Bruce of Subsea 7 comments:  “It was critical that no time was wasted with the cylinders’ inspection and test, so we scheduled it during our full refit planned when we acquired this vessel.  The CSC IM team were a thoroughly professional and efficient unit and we trusted them to ensure the high pressure gas installation on which we rely was able to continue in full service.”