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Geomagnetic storm disaster prevention method for a section of buried oil and gas pipeline

A technology for oil and gas pipelines and geomagnetic storms

Inactive Publication Date: 2017-11-14
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

[0010] Aiming at the technical problems existing in the prior art, the present invention provides a geomagnetic storm disaster prevention method for a section of buried oil and gas pipeline, which can solve the bipolar excessively high ground potential of the PSP pipe at both ends of the pipeline caused by the geomagnetic storm And the problem of the disaster point in the middle of the pipeline, reduce the problem that the GIC of the pipeline caused by the geomagnetic storm is too large or even damage the potentiostat and other equipment, improve the ability of buried oil and gas pipelines to defend against geomagnetic storm disasters, and prolong the life of pipelines and related equipment

Method used

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  • Geomagnetic storm disaster prevention method for a section of buried oil and gas pipeline

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Embodiment Construction

[0054] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The following description is only for demonstration and explanation, and does not limit the present invention in any form.

[0055] In order to reduce the sudden change point of pipeline geomagnetic storm disaster and reduce the "swallow tail peak" of pipeline PSP, thereby reducing the number of pipeline cathodic protection devices, and in order to reduce the degree of sudden change of PSP at pipeline geomagnetic storm disaster sudden change point, thereby greatly saving pipeline anti-corrosion costs, Improve the ability of buried oil and gas pipelines to defend against geomagnetic storm disasters, prolong the life of pipelines and related equipment, and design a method for preventing geomagnetic storm disasters for a section of buried oil and gas pipelines, such as figure 1 As shown, the method mainly includes the following four basic principle...

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Abstract

The invention relates to a geomagnetic storm disaster prevention method for a section of buried oil and gas pipeline. The method includes: step 1, a cathodic protection device is arranged in a gas transmission station and an oil transmission station; A set of potentiostats is installed at both ends of a section of pipeline; Step 3, decoupler setting; Step 4, a potentiostat is not allowed to be installed anywhere in a section of pipeline except at both ends of the pipeline. The geomagnetic storm disaster prevention method for a section of buried oil and gas pipeline of the present invention can avoid the bipolarity of the ground potential PSP at both ends of the pipeline caused by the geomagnetic storm being too high, and avoid the excessively large geomagnetic induction current GIC of the pipeline caused by the geomagnetic storm and cause the potentiostat Improve the ability of buried oil and gas pipelines to defend against geomagnetic storm disasters, and prolong the life of pipelines and related equipment.

Description

technical field [0001] The invention relates to the technical field of buried oil and gas pipeline protection, in particular to a geomagnetic storm disaster prevention method for a section of buried oil and gas pipeline. Background technique [0002] Long-distance gas transmission pipelines have gas transmission stations and oil transmission stations at intervals, and insulating flanges are installed at the inlet and outlet of gas transmission stations and oil transmission stations to electrically isolate the pipelines. For power supply and maintenance convenience, pipeline cathodic protection devices It is installed at the gas transmission station and the oil transmission station, and the two sections of pipelines outside the insulating flanges of the gas transmission station and the oil transmission station are connected together with metal wires. After the gas transmission station and the oil transmission station of the entire pipeline are done like this Except for the ga...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F13/02
Inventor 梁志珊夏鹏程张举丘
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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