Subsea 7 orders 400 tonne Huisman crane
Huisman's 5,000 tonne offshore mast crane is installed on the Seven Borealis
Offshore engineering company Subsea 7 has awarded Huisman a contract for a 400 tonne capacity offshore mast crane.
In addition to the crane, the contract includes the supply and installation of a 550 tonne flex-lay system. The Netherlands-based lifting, drilling and subsea engineering equipment specialist, will install both on Subsea 7's newest vessel. Delivery will be in 2014 and installation will be at Huisman in Schiedam. The IHC Offshore & Marine Shipyard in Krimpen aan den IJssel, also in the Netherlands, is building the ship.
Operating to a depth of 3,000 metres, the crane will have a deepwater lowering system and active heave compensation to counteract vessel motion when landing a load on the seabed. These features will make it an efficient tool for the installation of heavy loads required for deepwater subsea production systems, Huisman said.
Huisman has been building mast cranes for more than 30 years. A 5,000 tonne offshore mast crane for the Seven Borealis, another Subsea 7 vessel, was recently load-tested.
The flex-lay system will be the highest capacity system onboard a pipelay vessel. It will be built for the installation of flexible pipelines in 3,000 m water depth.
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