Heerema commissions pipelay vessel equipment
Huisman has signed a Letter of Intent with Heerema Offshore Services for installation equipment on Heerema’s new deepwater construction vessel.
SCHIEDAM, Netherlands -- Huisman has signed a Letter of Intent with Heerema Offshore Services for installation equipment on Heerema’s new deepwater construction vessel.
Under the agreement, Huisman will design, build and install a 4,000-metric ton (4,409-ton) revolving lift-capacity offshore mast crane and a pipelay tower suitable for J-lay and reel-lay operations in ultra deepwater.
All packages should be installed during 2012/2013, partly at the DSME yard in South Korea building the vessel, and the remainder alongside Huisman’s quay in Schiedam. It will be assembled at Huisman’s facility in China and installed onboard the vessel at the DSME yard in 2012.
Heerema chose the mast crane design because of the crane’s small footprint and relatively low construction weight.
The J-lay tower will be located over a moonpool. For reel-lay, the tower provides two 400-ton capacity pipe tensioners.
Pipe will be spooled on reels which can be lifted aboard offshore by the vessel’s own crane. This allows onshore spooling of reels while pipelay continues offshore, avoiding the need for a large spool base. And the reels will be easily removable to free space on deck when the vessel operated in J-lay or crane barge mode.
Huisman also will supply moveable pipe reels, PLET handling, A&R winches, and a heave- compensated deepwater lowering system.