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Laying structure and method for relieving strain of oil and gas pipeline under action of strike-slip fault

A technology for oil and gas pipelines and strike-slip faults, which is applied in the field of laying structures to relieve the strain of oil and gas pipelines under the action of strike-slip faults. The effect of slippery faults

Pending Publication Date: 2022-05-06
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, if only the wall thickness of oil and gas pipelines is increased, it can only be effective for minor strike-slip faults, while for larger strike-slip faults, the effect is very limited

Method used

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  • Laying structure and method for relieving strain of oil and gas pipeline under action of strike-slip fault
  • Laying structure and method for relieving strain of oil and gas pipeline under action of strike-slip fault
  • Laying structure and method for relieving strain of oil and gas pipeline under action of strike-slip fault

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Embodiment Construction

[0040] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

[0041] Oil and gas pipelines are important facilities for transporting oil and gas resources. They are usually laid in pipe trenches on the ground and buried by backfill. In the process of laying oil and gas pipelines, because it is a linear project and is limited by geographical conditions, the laying route has a high probability of passing through the seismic activity range. The range of seismic activity in our country is very wide. In the range of seismic activity, the compression between two parts of the crustal plate will form a fracture surface, and further relative movement will occur along the fault surface, thus forming an active fault. Strike-slip faults (also known as translational faults) are a type of active fault char...

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Abstract

The invention provides a laying structure and method for relieving oil and gas pipeline strain under the action of a strike-slip fault, and belongs to the field of pipeline laying. The laying structure comprises a pipe ditch, a geosynthetic foam layer and a covering layer, the pipe ditch is a long-strip-shaped groove, an opening is formed in the top of the pipe ditch, and the opening is in a long strip shape and extends in the length direction of the pipe ditch. The pipe ditch is filled with the geosynthetic foam layer, a long-strip-shaped cavity is formed in the geosynthetic foam layer, the cavity extends in the length direction of the pipe ditch, and the cavity is used for laying an oil and gas pipeline; the covering layer is filled at the opening so as to cover the opening. The influence of strike-slip faults on the oil and gas pipeline can be effectively relieved.

Description

technical field [0001] The disclosure belongs to the field of pipeline laying, and in particular relates to a laying structure and method for alleviating the strain of an oil and gas pipeline under the action of a strike-slip fault. Background technique [0002] The range of seismic activity in our country is very wide. In the range of seismic activity, the compression between two parts of the crustal plate will form a fracture surface, and further relative movement will occur along the fault surface, thus forming an active fault. Strike-slip faults (also known as translational faults) are a type of active fault characterized by horizontal movement between crustal plates along the fault plane. [0003] In the process of laying oil and gas pipelines, because it is a linear project and is limited by geographical conditions, there is a high probability that the laying route will pass through the seismic activity range, and the oil and gas pipelines located in the seismic activi...

Claims

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Application Information

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IPC IPC(8): F16L1/028F16L1/06
CPCF16L1/028F16L1/06
Inventor 王东源余志峰张振永赵子峰谭秋霞杨建赵彦波
Owner BC P INC CHINA NAT PETROLEUM CORP
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