| 摘要 |
<p>A method and apparatus for laying/retrieving pipeline (206) on a seabed using a pipe laying vessel (201) having a buoyant drum (203) installed therein so as to be supported by a body of liquid e.g. seawater in a moonpool (202) of the vessel in which it is partly immersed, in which the drum is supported by bearing supports in the vessel to rotate about a horizontal axis and in which the load applied to the supports is reduced by the buoyancy of the drum and which also facilitates pipe reeling and unreeling, and which may take place via the moonpool so that the systems can operate readily in different depths of water, and can lay pipeline in deep water.</p> |
