Pipeline laying apparatus

Details Pipeline laying apparatus Pipeline laying apparatus

1997-09-02

1999-11-02

Taylor, Dennis L.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

Submerging, raising, or manipulating line of pipe or cable...

4051681, 405169, 405170, F16L 112

Patent

active

059758023

ABSTRACT:
A subsea pipe laying system is mounted on a ship and comprises a fabrication station where lengths of pipe are welded together to form a pipeline. The pipeline is then guided to a pipe laying zone where including a straightener under the control of a tensioner/clamping arrangement the pipeline is straightened and laid on the sea bed. The straightener and the tensioner/clamps are mounted on a ramp which can be tilted whereas the fabrication zone is on the deck of the vessel. The pipeline can either be fabricated in a forward direction and then have its direction and movement reversed to lay over the stern or be fabricated in an aft direction and laid over the stern.

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Martin, et al., International Publication No. WO 95/25237, Sep. 21, 1995.

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