Geomagnetic storm disaster prevention method for buried oil-gas pipelines

Abstract

The invention relates to a geomagnetic storm disaster prevention method for buried oil-gas pipelines. The geomagnetic storm disaster prevention method comprises the following steps: step 1, a cathodic protection device is configured in each of a gas transmission station and an oil transmission station; step 2, as for pipelines outside the gas transmission station and the oil transmission station, a set of potentiostat is configured to each of the two ends of a segment of pipeline; step 3, a decoupler is arranged; and step 4, potentiostats are not permitted to be mounted in any places except the two ends of pipeline segments. The geomagnetic storm disaster prevention method for the buried oil-gas pipelines can prevent excessively high bipolarity of PSP (Pipe to Soil Potential) on two ends of pipelines caused by geomagnetic storm, prevents the potentiostats and other equipment from being damaged by excessively high GIC (Geomagnetically Induced Current) of the pipelines, caused by geomagnetic storm, improves the geomagnetic storm disaster prevention capability of the buried oil-gas pipelines and prolongs the service life of the 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...

AI Technical Summary

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

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