Marine pipeline installation vessel and method
A technology for submarine pipelines and installation ships, which is applied in the direction of pipe laying ships, pipeline laying and maintenance, pipes/pipe joints/pipe fittings, etc. It can solve the problem that ships need a lot of space and achieve favorable effects of strength and stability
Active Publication Date: 2015-11-11
ITREC BV
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, the disadvantage of this patent is that it requires a lot of space in the longitudinal direction of the ship
Method used
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[0072] figure 1 A subsea pipeline installation vessel VE for laying pipelines according to an embodiment of the invention is schematically shown.
[0073] The vessel VE is suitable for laying pipelines to the seabed at least by the pipeline laying method of reel laying, the basic principles of which are well known to those skilled in the art. The vessel has a front or bow side VE' and aft stern VE". The vessel may be a monohull as shown here, but other hull designs are also understood, eg a catamaran semi-submersible.
[0074] As will be explained below with reference to other embodiments, the vessel VE can also be embodied, for example, as a J-lay pipelaying method.
[0075] The vessel has a pipeline launching tower PLT. The tower PLT is adapted to drop the pipeline to be laid along the work line FL or at the pipeline laying axis extending along the tower PLT.
[0076] The tower PLT is provided with one or more pipe tensioners TE, usually fitted with pipe engaging rails, a...
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A marine pipeline installation vessel for laying a pipeline on the seabed, said vessel at least being adapted to carry out the reel lay method, wherein the vessel comprises: at least a first and a second storage reel for storage of the pipeline to be laid, which storage reels are positioned in or onto the vessel; a pipeline launch tower mounted to the vessel, which pipeline launch tower is adapted to launch the pipeline in a firing line along said tower; a pipeline guide which is mounted at an elevated position to the pipeline launch tower, which pipeline guide has a pipeline guide surface member providing an essentially circular or semi-circular pipeline guide surface, which pipeline guide is adapted to - in a primary pipelaying position thereof relative to the tower - guide a pipeline from a first storage reel over the pipeline guide into the firing line, wherein said pipeline contacts the pipeline guide surface at a first contact point fore of the firing line and departs said surface at a first departure point into the firing line.
Description
Background technique [0001] The invention relates to a subsea pipeline installation vessel for laying pipelines on the seabed and a method for laying pipelines, the vessel being at least suitable for carrying out the drum laying method, wherein the vessel comprises: [0002] • At least a first storage reel and a second storage reel for storing pipelines to be laid, said reels being arranged in or on board the ship. [0003] a pipeline launching tower mounted to said vessel, the pipeline launching tower adapted to launch pipelines in a working line along said tower; [0004] a pipe guide mounted to the pipe delivery tower at an elevated position relative to the main pipe laying location of the tower, the pipe guide having a substantially circular or semicircular pipe guide surface, The pipe guide is adapted to guide pipe from the first storage reel along the pipe guide onto the line at a primary pipe laying position, wherein the pipe is in surface contact with the pipe guide a...
Claims
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IPC IPC(8): B63B35/03F16L1/19F16L1/20
CPCB63B35/03F16L1/19F16L1/203F16L1/207F16L1/205F16L1/23F16L1/235
Inventor J·鲁登伯格T·W·A·威赫梅尔S·C·范鲁伊文
Owner ITREC BV