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Bottom-attached self-stabilizing oil and gas pipeline

A transmission pipeline, self-stabilizing technology, applied in the direction of pipeline support, pipeline laying and maintenance, pipes, etc., can solve the problems of easy leakage and damage, cumbersome underwater buried construction, poor stability, etc., and achieve high safety performance and remarkable disaster reduction effect , good stability

Active Publication Date: 2020-09-01
山东中冶石油机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One object of the present invention is to provide a bottom-attached self-stabilizing oil and gas transmission pipeline, which is used to solve the problems of poor stability of existing underwater pipelines, easy leakage and damage, and cumbersome underwater buried construction.

Method used

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  • Bottom-attached self-stabilizing oil and gas pipeline
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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, the present invention will be further described:

[0020] combine figure 1 , figure 2 As shown, this bottom-attached self-stabilizing oil and gas transmission pipeline is a combined pipeline composed of a concrete interlayer 4 arranged between the streamlined outer pipe wall 3 and the inner pipe 2. The concrete interlayer 4 passes through the streamlined outer pipe wall 3 and the inner pipe wall. The anti-seepage concrete is sprayed between the pipes 2, and the concrete interlayer 4 plays multiple functions such as counterweight, protection and force bearing. The streamlined outer tube wall 3 is integrally formed by the bottom plate 5 extending upwards to the arc top 10 through the two side wings 9. The cross section of the streamlined outer tube wall 3 is a multi-curve streamlined section, and the two side wings 9 and the arc top 10 can reduce the ocean current force The center of gravity of the section of the combined...

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Abstract

The invention relates to a bottom-attached self-stabilizing oil and gas transmission pipeline. The underwater-attached self-stabilized oil-gas transmission pipeline is a combined pipeline composed of a streamlined outer pipe wall and an inner pipe with a concrete interlayer. The streamlined outer pipe wall It is integrally formed by the bottom plate extending upwards to the top of the arc through the two side wings. The section of the streamlined outer pipe wall is a multi-curve streamlined section. Laying on the bottom rock and soil layer, the bottom plate is in close contact with the bottom rock and soil layer. The present invention adopts a multi-curve streamline section type, which is less affected by ocean currents, has a low center of gravity of the section, and has a close contact between the bottom of the combined pipeline and the bottom of the water, and is laid and attached to the bottom of the water. The force is reasonable, the risk of pipeline resonance is avoided, the stability is good, and the safety performance is high. , the disaster reduction effect is remarkable.

Description

technical field [0001] The invention relates to the technical field of pipeline production for the development and transportation of resources such as underwater oil and gas and combustible ice, in particular to a bottom-attached self-stabilizing oil and gas transportation pipeline. Background technique [0002] Submarine pipelines are an important part of the development and transportation of offshore oil and gas, combustible ice and other resources, and are the main means of oil and gas transportation. With the rapid development of marine economy, the use and development activities of sea areas are becoming more and more frequent, and the number of submarine oil and gas pipelines is increasing at an alarming rate. Submarine pipelines, especially deep-sea submarine pipelines, are usually laid bare or buried shallowly attached to the seabed. They are greatly affected by waves, currents, earthquakes, and submarine geological changes. Their stability is one of the key issues i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/14F16L1/16F16L1/20F16L3/12
Inventor 卢召红王尊策徐艳刘海水
Owner 山东中冶石油机械有限公司
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