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Ship special for pipeline laying in shoal area

A technology for laying pipelines and special ships, which is used in pipeline laying and maintenance, pipeline laying ships, machinery and equipment, etc., to achieve the effect of improving construction efficiency and having a simple and reliable structure.

Inactive Publication Date: 2021-02-12
CCCC THIRD HARBOR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no pipeline laying ship in shallow water that can be directly used in China, so there is an urgent need for a special ship that can lay pipelines in shallow water

Method used

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  • Ship special for pipeline laying in shoal area
  • Ship special for pipeline laying in shoal area
  • Ship special for pipeline laying in shoal area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, with reference to figure 1 , combined with figure 2 , image 3 , a special vessel for laying pipelines in the shoal area, including a hull 1 on which pipeline laying tools are fixed;

[0035] The pipeline laying tooling includes a guide bracket 2, on which a guide chute 3 arranged along the direction of the keel of the hull 1 is provided, and the guide chute 3 is arranged downwardly from the rear end to the front end and extends downward to the bottom of the hull 1. The end; in front of the guide bracket 2, a custodian bracket 4 protruding from the hull 1 is provided, and one end of the custodial bracket 4 is hinged with the hull 1;

[0036] The hull 1 is provided with a lowering mechanism for lowering the hosting bracket 4 so that it corresponds to the inclination angle of the guide chute 3;

[0037] A pipe clamping device 5 is fixedly installed between the guide bracket 2 and the hosting bracket 4, and the clamping center line of the pipeline clampin...

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Abstract

The invention discloses a ship special for pipeline laying in a shoal area, and relates to the technical field of offshore pipeline laying engineering. The ship comprises a ship body, wherein a pipeline laying tool is fixedly arranged on the ship body; the pipeline laying tool comprises a guide support, the guide support is provided with a guide sliding groove formed in the keel direction of the ship body, and the guide sliding groove is obliquely formed downwards from the rear end to the front end and extends downwards to the tail end of the ship body; a pipe supporting bracket extending outof the ship body is arranged in front of the guide bracket, and one end of the pipe supporting bracket is hinged with the ship body and butted with the guide sliding groove; a lowering mechanism usedfor lowering the pipe supporting bracket to enable the pipe supporting bracket to correspond to the inclination angle of the guide sliding groove is arranged on the ship body; a pipeline enclasping device is fixedly mounted between the guide bracket and the pipe supporting bracket, and the clamping center line of the pipeline enclasping device is parallel to the guide sliding groove; and a weldingstation is arranged on the guide bracket. According to the ship, construction technology is more efficient, the construction quality is better, stable and continuous pipeline laying operation can beachieved under the complex sea condition of the shallow water area, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of offshore pipeline laying engineering, in particular to a special vessel for laying pipelines in shoal areas. Background technique [0002] With the rapid development of global offshore oil development, offshore oil development platforms are gradually moving from offshore to deep sea. Offshore oil pipelines have become the lifeline connecting offshore oil platforms. For the installation of offshore oil pipelines, there is an urgent need for special platforms for construction and installation. Due to the late start of domestic offshore oil development, there is a lack of dedicated offshore oil pipeline laying ships, and pipeline laying ships capable of deep-water operations have a high technical threshold, making it difficult to develop. At present, most of the installation and construction of domestic deep-water pipelines are carried out by foreign pipeline-laying ships. For pipeline laying projects in sh...

Claims

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Application Information

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IPC IPC(8): F16L1/16F16L1/20F16L1/235B63B35/03
CPCB63B35/03F16L1/16F16L1/202F16L1/235
Inventor 程加军黄朋举范旭征博裴延庚佘福元张跃辉练学标
Owner CCCC THIRD HARBOR ENG
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