| 摘要 |
The invention relates to a lifting device for lowering a pipeline end from a water surface to a seabed, alternatively later retrieval of the same from the seabed to the water surface, said pipeline end being provided with an outboard connecting part (20) designed for mating and connection with an inboard connecting part (10) on the seabed. The invention is distinctive in that the lifting device comprises a hang off clamp (10) adapted for connection with the outboard connecting part (20), at least one lifting arm (3a', 3b') pivotably connected to the hang off clamp (11) at a respective first end (3a', 3b') of said at least one lifting arm (3a, 3b) and; a yoke (2), said yoke (2) being adapted to be releasable connected to the at least one lifting arm (3a, 3b) at a respective second end (3a", 3b") of said lifting arm (3a, 3b), said at least one lifting arm (3a, 3b) having a locking arrangement for securing the at least one lifting arm (3a, 3b) to the hang off clamp (11) in a non-rotational resting position. The invention also relates to a method for lowering of a pipeline end from a water surface and retrieving a pipeline end from a seabed by use of the lifting device. |
