| 摘要 |
<p>Methods and apparatus for marine pipelaying operations are described in which the pipe to be laid is fed from a storage reel (18), over a bending shoe (20) mounted on a derrick structure (12) located above a moonpool (14), through a straightening assembly (22) suspended from the derrick structure (12) and into the water via said moonpool (14). The pipeline is straightened by being fed piecewise from the reel and being clamped while the straightener assembly is drawn upwards along a length thereof extending between the bending shoe and the moonpool. The system described is suited to use on a drill ship which can be temporarily converted for pipelaying purposes.</p> |
