The method of finding out the sudden change point of geomagnetic storm disaster in the buried oil and gas pipeline network by using pngspss

Abstract

The present invention relates to a method for finding out the sudden change point of geomagnetic storm disaster of buried oil and gas pipeline network by using PNGSPSS, and find out the geomagnetic storm disaster of the whole pipeline network by scanning and searching the sudden change point of geomagnetic storm disaster of long-distance buried oil and gas pipeline network The sudden change point is beneficial to the buried oil and gas pipeline network to implement line optimization selection, pipeline electro-decoupling segmentation and cathodic protection measures for a section of pipeline; it can reduce the sudden change point of pipeline geomagnetic storm disasters, reduce pipeline PSP "swallow tail peak", and reduce pipeline cathodic protection The number of devices saves the cost of pipeline anti-corrosion; it can reduce the "negative" cumulative effect of geomagnetic induction current GIC and pipe-to-ground potential PSP produced by geomagnetic storm disasters in long-distance electrical continuity buried oil and gas pipeline networks, and avoid pipeline damage caused by geomagnetic storms. The bipolarity of the ground potential PSP of the pipes at both ends is too high, avoiding the damage of equipment such as potentiostats caused by the excessive geomagnetic induction current GIC of the pipeline caused by geomagnetic storms, improving the ability of buried oil and gas pipelines to defend against geomagnetic storms, and prolonging the life of pipelines and related equipment .

Description

technical field [0001] The invention relates to the technical field of buried oil and gas pipeline network protection, in particular to a method for finding the sudden change point of geomagnetic storm disaster in buried oil and gas pipeline network by using PNGSPSS (pipe network geomagnetic storm disaster sudden change point scanning search method). Background technique [0002] Long-distance oil and gas pipelines have gas stations and oil stations at intervals, and insulating flanges are installed at the inlet and outlet of the gas stations and oil stations to electrically isolate the pipelines. For the convenience of power supply and maintenance, 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...

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Problems solved by technology

[0012] At present, the structural parameters of the buried oil and gas pipeline network and the mutation points of the environmental parameters of the pipeline network have not been paid attention to, and there is also a lack of comprehensive, complete and accurate data support. Problem, the present invention provides a kind of buried oil and gas pipeline network geomagnetic storm disaster sudden change point scanning search method (PNGSPSS method) and adopt this method to find out the method for the geomagnetic storm disaster sudden change point of the whole pipeline network, adopt the technical scheme of the present invention , which is conducive to the implementation of line optimization selection, pipeline electro-decoupling segmentation, and cathodic protection measures for a section of pipeline, which can further reduce the sudden change point of geomagnetic storm disasters in pipelines and reduce the PSP "swallow tail peak" of pipelines, thereby reducing the number of cathodic protection devices for pipelines, greatly It saves the anti-corrosion cost of pipelines, and can reduce the "negative" cumulative effect of geomagnetic induction current GIC and pipe-to-ground potential PSP generated by geomagnetic storm disasters in long-distance electrical continuity buried oil and gas pipeline networks, and can avoid damage at both ends of the pipeline caused by geomagnetic storms. The bipolarity of the pipe-to-ground potential PSP is too high, avoiding the damage of equipment such as potentiostats caused by the excessive geomagnetic induction current GIC of the pipeline caused by geomagnetic storms, improving the ability of buried oil and gas pipelines to defend against geomagnetic storms, and prolonging the life of pipelines and related equipment

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