Operation method of anchoring type operating vessel when crossing over submarine facility during anchoring

Abstract

The invention relates to an operation method of an anchoring type operating vessel when crossing over a submarine facility during anchoring. The method adopts the following operation steps: step one, distributing and installing a plurality of clamps at intervals in the set positions for the anchor ropes in advance when the anchoring type operating vessel reaches an offshore construction operation field and before the anchor ropes are positioned into water; step two, installing a plurality of floating camel structures in the set positions for the anchor ropes through the respective connecting retaining rings; step three, after completing the installation of the floating camel structures in the set positions for the anchor ropes, positioning the anchor ropes into water. The operation method has the advantages that the operation is simple, the maintenance is convenient, the anchor ropes positioned above the submarine facility can be in the suspension state and not in contact with the submarine facility while the construction cost is reduced, thereby avoiding the damage from the anchor ropes to facilities such as submarine oil pipelines and submarine cables around the prior offshore production platform, so that the submarine facility can be protected safely and effectively; simultaneously, the safety factor of underwater operation and the overall construction safety are improved.

Description

technical field [0001] The invention relates to an operation method for an anchored operation ship when anchored, in particular to an operation method for an anchored operation ship to cross a seabed facility when anchored, and belongs to the field of offshore oil engineering. Background technique [0002] In offshore oil development projects, various platforms such as oil production platforms, living platforms, and central processing platforms need to be built offshore. In order to cooperate with the offshore oil production platform for oil production operations, many auxiliary facilities such as submarine cables and submarine oil pipelines are laid around the offshore oil production platform. Therefore, there are many facilities and complex terrain environment around each offshore oil production platform. [0003] In the secondary development of oil and gas fields, engineering construction needs to be carried out near the original offshore old platform. In order to prote...

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Problems solved by technology

[0006] Due to the existing operation method of the mooring operation ship in the shallow water oil and gas field area, most of the anchor cables are on the seabed in the shallow sea, and the general anchoring construction does not take effective protection measures for the seabed facilities. , A little carelessness when anchoring or anchoring and moving the ship will easily cause damage to submarine facilities such as submarine oil pipelines and submarine cables; risk

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