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McDermott finishes subsea project in India

Jan 12, 2021
2 min read
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McDermott International announced it has completed the KG-D6 R Cluster subsea field development project and achieved pre-commissioning and ready for startup for India’s Reliance Industries, in the Krishna Godavari Basin, located off the east coast of India.

McDermott used its Derrick Lay Vessel 2000 to perform its first S-lay piggy-back pipelay.

"The safe and successful completion of Reliance's KG-D6 R Cluster project is a testament to McDermott's subsea experience in the Bay of Bengal," said Ian Prescott, McDermott's senior vice president, Asia Pacific. "Pre-commissioning and ready for startup was achieved despite difficult circumstances—two severe cyclones during the first campaign and, in the second, navigating the challenging conditions of COVID-19."

For the KG-D6 R Cluster project, McDermott built a yard facility in India for the fabrication of risers, jumpers and marine logistics support. The project comprised two offshore campaigns. During the first campaign, the DLV 2000 completed McDermott's first piggy-back pipelay in S-lay mode (18-inch plus a four-inch) in 1,300 meters water depth. It also included the installation of the first ever ultra-deepwater structure, weighing 343 tons, for the DLV 2000. Several six-inch pipelines, PLETs and manifolds were installed in water depths up to 1,965 meters. In addition, McDermott installed India's longest dual riser.

The second campaign included installation of manifolds, manifold piles, flowlines, PLETs (S-mode and J-mode), in-line structures, jumpers and umbilicals in ultra-deepwater depths, together with major brownfield modifications to Reliance's control and riser platform.

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