| 摘要 |
<p>The invention entails a tensioning assembly suitable for surrounding and supporting a pipeline during installation, the tensioning assembly comprising two or more discrete segments, being a first segment 32 and at least a second segment 34, the segments being movable between a closed position (see figure 4) wherein the segments are conjoined / connected to form a pipeline-surrounding annulus able to clamp or support the pipeline between the legs 26, 26 of a tower, and an open position (shown) wherein the two segments are disconnected and separate. The segments may have a central section 36, and wing sections 42 furnished with a pipeline centraliser 40, the segments effectively making up the jaws of the hang-off clamp of the pipeline tensioner. By having the individual segments of the clamp completely separable or disconnected, it increases the clearance circle for working under the legs 26, 26 of the tower. Preferably, the tensioning assembly is incorporated in a tower located on a pipeline-laying vessel.</p> |
