Feature 4 | SEMISUBMERSIBLES
Drydocks World inks ‘keyhole surgery’ compact semisub contract
Drydocks World – Southeast Asia (DDW-SEA) has won a contract to build a state-of-the-art oil well intervention compact semisubmersible (CSS) vessel – the third order from integrated energy industries service provider Hallin Marine. Te vessel’s contract totals US$110 million.
T
he diesel/electric driven CSS is designed by STX Canada Marine and its primary function is to
facilitate the repair and maintenance of an existing well. This is carried out via chemical injection on braided lines, extended perforation tunnels and effectively maximising and extending the productive life of the well. Te semisubmersible vessel is equipped
with four fixed-pitch azimuth thruster units and full dynamic positioning 3 capacity (DP3), which enables automatic as well as manual dynamic positioning/heading control in harsh environmental conditions, and has a multiple inherent fail-safe capability. Chief executive officer of Drydocks World
– Southeast Asia, Denis Welch, noted that the capability of the vessel for repair and maintenance is one of Drydocks World’s strengths. Welch said: “It will enable the marine equivalent of keyhole surgery to subsea oil production systems. Tis is an exciting first for Drydocks World, also the first of its kind to be manufactured in Batam.” Te 84m loa, 8200dwt CSS also features
an active heave-compensated offshore crane, a single line liſting of 150tonnes safe working load (SWL), a complete active heave-compensated, electro-hydraulic deepwater lowering system, a 5tonnes provision crane and two remotely operated vessel systems, one launched via the internal moonpool and the other from the vessel’s starboard. Te CSS can accommodate up to 152 subsea team members. Hallin chief executive officer, John Giddens,
added: “Drydocks World has produced two excellent vessels for us in building Ullswater and Windermere and its engagement and enthusiasm for the CSS, along with a competitive price, convinced us it was the right company to build our new flagship.” Te subsea operations vessel, Windermere, was completed at Drydocks World’s
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Windermere subsea operations vessel built at Drydocks World – South East Asia for Hallin Marine. Seen here during the naming ceremony (Credit: Drydocks World – South East Asia / Hallin Marine).
Singapore yard and is to be delivered before the end of 2010. Ullswater was delivered in February 2009. The contract for the new CSS vessel,
classed by ABS, to be named like its predecessors aſter one of the 26 lakes in the UK’s Lake District, has just been formally signed in Singapore. Welch concluded: “We are extremely
pleased to extend our relationship with Hallin via this contract and we look forward to eventually constructing a fleet which covers the names of all 26 lakes in the Lake District.” The ship’s classification is ABSA1,
Mobile Offshore Unit, AMS (E), DP-3, U-WILD, Diving System Helidk. Drydocks World has been involved in the
maritime industry for more than 25 years. Starting out in international ship repair, it has since become an international brand in the sectors of new shipbuilding, rig building,
Offshore Marine Technology 3rd Quarter 2010
FPSO conversions, offshore fabrication, and fleet operations. Te 84m CSS will be under construction
at Drydocks World – Southeast Asia’s Batam yard in Indonesia. OMT
Computer-generated image of the well intervention compact semisubmersible to be built at Drydocks World – South East Asia (Credit: Drydocks World – South East Asia / Hallin Marine).
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