A gas hydrate and oil and gas production well discharge plugging removal device

Abstract

The present invention provides a natural gas hydrate and oil and gas production well discharge plugging removal device, comprising: an upper insulating flange and a lower insulating flange arranged up and down oppositely; the upper end is connected to the upper insulating flange and the lower end is connected to the upper insulating flange. The discharge electrode connected by the lower insulating flange; the upper insulating reflector arranged on the upper end of the discharge electrode, and the lower insulating reflector arranged on the lower end of the discharge electrode, the lower insulating reflector and the upper insulating reflector The upper and lower insulating reflectors are arranged opposite to each other, and the upper insulating reflector and the lower insulating reflector are used to reflect the hydraulic shock wave generated around the discharge electrode and form a wave effect, so as to eliminate the clogging of the holes of the filter column. Beneficial effects of the present invention: the upper insulation reflector and the lower insulation reflect hydraulic shock waves to form a wave effect, eliminate the blockage of the filter pipe hole, and at the same time form a fracture network in the near-wellbore area, improve the permeability of the reservoir, thereby creating a good environment for increasing the production of the reservoir condition.

Description

technical field

[0001] The invention relates to the technical field of natural gas hydrate and oil and natural gas development, in particular to an electric discharge plugging removal device for natural gas hydrate and oil and natural gas exploitation wells. Background technique

[0002] In the process of natural gas hydrate and oil and natural gas production, the production of oil and gas in the reservoir is usually accompanied by sand and mud production, which will cause silting of the filter string holes and blockage of the formation around the well wall, which in turn makes the oil (gas) in the production process Problems such as unsmooth flow, sand and mud production in production layers, and silting of filter pipe holes have led to technical difficulties such as mining obstruction and production reduction. At present, for the above-mentioned problems in the mining process in China, acidizing chemistry and fracturing methods are usually used to solve the problems of fil...

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