Indonesian shipyard building semisub vessel
Artist impression of the compact semi-submersible vessel ‘Derwent‘
Drydocks World recently held a keel laying ceremony for a compact semi-submersible (CSS) vessel being built for integrated energy services provider Hallin Marine Subsea International Ltd, a Superior Energy Services company.
The newbuilding, to be named Derwent, is being built at Drydocks World’s Nanindah shipyard at Batam in Indonesia at a cost of $110 million.
Designed by STX Canada Marine Inc, the CSS vessel has a semi-submersible style hull making it a cost effective alternative to large Diving Support Vessels (DSV) and traditional semi-submersibles in providing subsea services as well as light well interventions. “The CSS is an exceptional vessel and is capable of working in any water depth. We have prior experience in this field and this new project represents confidence in our ability to produce innovative vessels,” said Drydocks World and Maritime World chairman Khamis Juma Buamim.
The primary focus of the vessel, which will be classified by the ABS, will be light well intervention to provide repair and maintenance services to an existing offshore well and sub-sea oil production systems support. The CSS is equipped with four fixed-pitch azimuth thruster units and full DP-3 capability.
The 84m, 8,200 dwt vessel has an active offshore crane, a single line lifting of 150 tonnes SWL (safe working load), a complete active heave-compensated, electro-hydraulic deep water lowering system, a five tonne provision crane and two deepwater ROVs. The CSS can accommodate up to 152 sub-sea team members.Images for this article - click to enlarge
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