Construction method and device for fixing seabed pipeline

A technology for submarine pipelines and fixtures, applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve undiscovered problems
CN1419068AInactive Publication Date: 2003-05-21中石化石油工程技术服务有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中石化石油工程技术服务有限公司
Publication Date
2003-05-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a submerged pipeline fixing contruction method and its equipment. Said method includes the following steps: firstly, prefabricating fixing equipment in plant, transporting it to seaside field and assembling it and fixing pile pipe into one body, shipping and transferring them to place, using floating crane to lift the piling machine, fixing device and fixing pile pipe together and make the fixing pile pipe come into centering guide, and using asdic method to guide the centering guide accurately be in place, using piling machine to drive fixing pile pipe into sea-bed and make fixing equipment be in place and fixing floating part of the pipeline. Said invented equipment includes hydraulic vibration piling machine, pile pipe centering guide, fixing equipment, fixing pile pipe and others.
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Description

(1) Technical field

[0001] The invention relates to lowering a support structure to the seabed and fixing it, in particular to a construction method and device for fixing a submarine pipeline. (2) Background technology

[0002] In the shallow sea area of ​​Shengli Oilfield, due to the particularity of sea conditions, the influence of currents and artificial buildings, etc., the suspension section of the submarine pipeline appears near the platform and at the connection with the riser. The exposed suspended section of the submarine pipeline swings back and forth under the washing of currents and waves. When its local position exceeds the fatigue limit, the pipeline may break, causing oil spills, causing heavy losses and seawater pollution. This problem must be resolved as soon as possible. After retrieving patent documents and relevant scientific and technological materials, no patented technology and effective measures to solve this problem have been found. (3) Contents ...

Claims

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