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(WO) – DeepOcean is nearing completion of a significant decommissioning marketing campaign for TotalEnergies, delivering a totally diverless disconnection of the Gryphon Alpha FPSO within the UK North Sea.
The undertaking covers the flushing of pipelines and manifolds, the disconnection and restoration of subsea flowlines, umbilicals, risers and midwater arches, in addition to the FPSO’s mooring system. DeepOcean additionally managed the tow-off as soon as the vessel was launched from the sector.
A key function of the work scope is the corporate’s use of proprietary tooling—designed and engineered in-house—which enabled the whole marketing campaign to be executed with out divers. The diverless spool disconnection and blind-flange set up marked an business first for this sort of operation.
“This undertaking is a standout achievement for DeepOcean,” mentioned Robin Mawhinney, Managing Director, DeepOcean UK. “The bespoke tooling created for this scope allowed us to carry out the whole lot of the work with diverless methodologies that produced exemplary outcomes.”
The undertaking is being delivered by DeepOcean’s Aberdeen crew, with engineering help from Haugesund, Norway. Last actions—restoration of mooring chains and remaining risers—are anticipated to conclude earlier than year-end.
Commissioned within the mid-Nineteen Nineties as the primary purpose-built, completely moored FPSO within the North Sea, Gryphon Alpha produced greater than 250 MMboe over three a long time, far exceeding its authentic ten-year design life.
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