End fitting handling in a marine pipeline installation system

A technology for submarine pipelines and pipelines, which is applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., and can solve problems such as inability to operate the second end fittings

Active Publication Date: 2017-08-01
ITREC BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This known transfer mechanism cannot handle the second end fitting

Method used

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  • End fitting handling in a marine pipeline installation system
  • End fitting handling in a marine pipeline installation system
  • End fitting handling in a marine pipeline installation system

Examples

Experimental program
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Embodiment Construction

[0200] exist figure 1 shows a part of the hull 1 of a pipe-laying vessel, which here is equipped with a boat well 2 via which the pipe-laying is carried out.

[0201] The vessel supports a storage reel 3 for a flexible pipeline 5 to be installed, for example laid on the seabed and / or as a marine riser or part of a marine riser . In this example, the longitudinal axis drum 3 or the gondola is mounted below the deck 7 of the ship, but such a gondola could also be mounted above the deck if required. In another embodiment, the storage reel 3 is a transverse reel, for example permanently fitted on board the ship or a replaceable reel, for example provided on a slidable tackle on the deck of the ship.

[0202] The water entry tower 10 is arranged on the hull 1, which is close to the boat well 2 here. Said tower 10 is adapted to release the pipeline 5 in the working line 6 into the sea. In this example, the tower 10 is tiltable by means of a telescoping adjuster 11, so that the a...

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Abstract

A marine pipeline installation system for laying an offshore pipeline and/or installing a subsea riser. The system comprises a pipeline guide (20) mounted at an elevated position on the launch tower (10) providing an arcuate guide surface (21) in a vertical plane for guiding said pipeline from the storage reel into the firing line. The system further comprises flexible pipeline end fitting transfer mechanism adapted to transfer an end fitting on a flexible pipeline over the pipeline guide. This transfer mechanism comprises a rotatable transfer arm (60) provided with a first retainer (80) for an end fitting adapter (85) to retain, at the trailing side (68) of the transfer arm (60), a first end fitting (5a). And the transfer arm (60) is provided with a second retainer (90) to retain, at the leading side (67) of the transfer arm (60), a second end fitting (5b).

Description

technical field [0001] The present invention relates to the operation of end fittings on flexible pipelines in marine pipeline laying systems for laying offshore subsea pipelines and / or installing subsea risers. Background technique [0002] In the field of subsea pipeline installations, flexible pipelines usually do not need to be straightened after passing through arched pipeline guides, because the deformation of the pipeline is well within the elastic deformation range of the pipeline. In some embodiments, the flexible pipe is manufactured by winding interwoven layers of high strength stainless steel and polymer. In contrast, rigid pipes are usually carbon steel pipes which, after passing through pipe guides, are subjected to pipe straightening by a straightener assembly to compensate for plastic deformation. [0003] WO 2007 / 108673 discloses a marine pipeline laying system for laying offshore subsea pipelines and / or installing subsea risers. The system comprises a sto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/20
CPCF16L1/207F16L1/203
Inventor J·鲁登伯格R·L·W·诺文斯T·W·A·威赫梅尔
Owner ITREC BV
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