| 摘要 |
Method for transport and installation of objects at sea, particularly relating to transport and installation of ob-s jects that are part of the infrastructure in oil and gas fields offshore, the object 4 is put in the sea at a suitable location near the shore or in sheltered waters, then towed to the installation site while being suspended in a slender buoyancy unit 5 acting much like a heave compensating unit. Upon arrival at the installation site, the suspension of the object 4 is transferred from the buoyancy unit 5 to a heave compensated winch 3 on a surface vessel 2, preferably the same vessel as used for the preceding towing operation. The winch is used to lower is the object 4 to its destination on the sea bottom or a predetermined location above the sea bottom. |
