STATS Group has completed repairs on an 8” gas condensate export pipeline in the Gulf of Thailand, which had been dragged eight meters out of position by a vessel anchor.
The project, which was commissioned by CUEL Ltd, included the installation of an 8” bypass on the seabed as a permanent repair to re-route the pipeline medium away from the damaged pipeline section, which was situated at a water depth of approximately 60 meters and had an operating pressure ranging from between 7 and 21 bar.
To complete the project, STATS Group utilized BISEP’s, slab valves, hot tap fittings, completion plugs, end connectors and abandonment plugs.
“This subsea pipeline repair project presented many operational and technical challenges,” Mark Gault, Subsea and EPRS Product Line Manager for STATS Group, said. “The successful completion demonstrates STATS ability to accommodate complex operations while maintaining high levels of safety at all times. The DNV GL type approved BISEP provides a fully proved, fail-safe, double block and bleed (DBB) isolation barrier from the pressurised pipeline. This level of isolation complies with industry guidance on isolation and intervention for diver access to subsea systems, ensuring diver and worksite safety.”