Geomagnetic storm disaster prevention method for buried oil-gas pipelines

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.