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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

Inactive Publication Date: 2003-05-21
中石化石油工程技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching patent documents and relevant scientific and technological materials, no patented technology and effective measures to solve this problem have been found

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  • Construction method and device for fixing seabed pipeline
  • Construction method and device for fixing seabed pipeline
  • Construction method and device for fixing seabed pipeline

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Embodiment Construction

[0019] Such as figure 1 , 2, the process flow of the construction method of the present invention is: before the fixed pile pipe 4, the sea construction preparation work and the factory prefabrication of the fixture are carried out simultaneously, on the one hand, carry out sea underwater survey, positioning and sonar buoy calibration, on the other hand On the one hand, the fixing device 6 is pulled and transported to the beach site to be assembled with the fixed pile pipe 4, and then the whole is shipped and transported in place. Pile driver 2, fixture 6, fixed pile pipe 4 etc. are hoisted together by floating crane 11 on the construction ship 9, and fixed pile pipe 4 is entered into the center of righting frame 3. Utilize the sonar device 3.11 on the centralizing frame 3 to find the suspended pipe section, and guide the centralizing frame 3 to be precisely in place. Then with pile driver 2 fixed pile pipe 4 is driven into the seabed, and fixture 6 is put in place; Meanwhile...

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PUM

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/16
Inventor 孙连芬高天宝路国章吴进军齐雅茹李新军钱孟祥谢明智许曙光
Owner 中石化石油工程技术服务有限公司
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