Pipeline strain calculation method under action of general continuous earth surface displacement
A pipeline strain and calculation method technology, which is applied in the pipeline field, can solve the problems of low accuracy of operating status and achieve the effect of accurate determination and guaranteed accuracy
Pending Publication Date: 2021-06-11
CHINA UNIV OF PETROLEUM (BEIJING)
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[0005] The embodiment of the present invention provides a method for calculating pipeline strain under the action of general continuous surface displacement, so as to solve the technical problem of low accuracy in the operating state in the prior art
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[0062] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0063] Geological disasters can directly lead to large deformation of buried pipelines, causing rupture of the pipe body, resulting in oil and gas medium leakage in the pipeline and pipeline stoppage. According to the form of soil displacement, geological disasters can be divided into abrupt surface displacement geological disasters and continuous...
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The invention provides a pipeline strain calculation method under the action of general continuous earth surface displacement, and the method comprises the following steps: acquiring earth surface displacement monitoring data corresponding to a target pipeline, and determining an earth surface displacement function according to the earth surface displacement monitoring data; parameter information of the target pipeline is obtained, and the soil spring strength corresponding to the target pipeline is determined; based on a finite element model, obtaining a current strain value corresponding to the target pipeline according to the earth surface displacement function, the parameter information of the target pipeline and the soil spring strength corresponding to the target pipeline; and determining the operation state corresponding to the target pipeline according to the current strain value, thereby realizing accurate determination of the operation state of the target pipeline, and ensuring safe operation of the target pipeline.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of pipelines, in particular to a calculation method for pipeline strain under the action of general continuous surface displacement. Background technique [0002] According to the form of soil displacement, geological disasters can be divided into abrupt surface displacement geological disasters and continuous surface displacement geological disasters. In the process of oil and gas transportation through pipelines, the continuous surface displacement mainly caused by continuous goafs and partial landslides, that is, continuous surface displacement geological disasters will cause deformation of pipelines and pose a serious threat to the safe operation of pipelines. In order to ensure transportation safety, it is necessary to evaluate the impact of continuous surface displacement geological hazards on the safety status of the pipeline, that is, to determine the current operating statu...
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Login to View More IPC IPC(8): G06F30/13G06F30/23G06F113/14G06F119/14
CPCG06F30/13G06F30/23G06F2113/14G06F2119/14
Inventor 刘啸奔张宏高宁季蓓蕾方威伦
Owner CHINA UNIV OF PETROLEUM (BEIJING)