Patent ID: 8235228
Filing Date: 2012-08-07
Classification: B63B,B66C

Abstract:
1. A method of deploying an object having a load onto a seabed in very deep water of a sea from a vessel having a heave compensated crane, comprising: lowering the object a distance into the sea while being suspended by a crane wire, wherein a first fibre rope section of a first length is connected to the object via a first connector on the object before the lowering is started and is freely run out from a storage reel during the lowering and subsequently supports the object via a second connector located at an upper end of the first rope section, the second connector being supported by a support mechanism on the vessel, off-loading the crane wire and disconnecting it from the object and heaving it up said first length for connection to the second connector at the vessel and taking over the load of the object, lowering the object a second length into the water by the crane while a second rope section connected to the second connector is freely run out from the storage reel until a third connector located at an upper end of the second rope supports the load of the object in the support mechanism, whereupon the crane wire is released and brought up for re-connection to the third connector for subsequent deployment, and any further deployment in addition to the first and second ropes, thereby allowing the object to reach a depth of up to 3000 meters or more.