The ABS-classed Helix Q5000 well intervention vessel was recently delivered to Helix Energy Solutions Group from the Jurong Shipyard in Singapore.
ABS’ scope of services included performing independent plan reviews of the design from the basic design through detailed design stages and providing experienced surveyors to work on the project. Engineers from both the ABS Houston engineering office and ABS Pacific Division in Singapore coordinated plan review activities to provide smooth service delivery.
The Q5000 DP3 vessel is a second-generation design based on the successful Q4000 mobile offshore drilling unit also classed by ABS. This multiservice vessel provides a stable platform for a wide variety of tasks, including subsea well intervention, field and well decommissioning, installation and recovery of subsea equipment, well testing and subsea construction activities.
The new Helix vessel features a 680 t (mT) tower capable of fulfilling all traditional derrick roles, a deepwater crane with a lifting capacity of 400 mT and a work crane rated to 160 mT. The vessel also features a 68 ft x 26 ft moonpool and 23 ft x 22 ft mechanized fully opening rig floor door, a 7-3/8 in intervention riser system, two 10,000 ft heavy-weather ROV systems and an overall deck load of 3,000 mT.
ABS classed the vessel with requested notations that include the Classification of Drilling System (CDS) notation which is a comprehensive approach to classing offshore drilling systems and their associated support systems; DPS-3 for dynamic positioning capability; and CRC, denoting crane register certificate.
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