Gas anchor for integrated gas-liquid throughput and mechanical pumping production

Abstract

This utility model discloses an integrated gas anchor for gas-liquid injection and mechanical pumping production, comprising: an upper connector; an outer cylinder, the upper end of which is externally threaded to the lower end of the upper connector; a central tube, the upper end of which is externally threaded to the lower end of the upper connector; a lower connector, the upper end of which is externally threaded to the lower port of the outer cylinder; a spiral inner tube, located between the central tube and the outer cylinder, the lower end of which is externally threaded to the lower end of the central tube, with spiral blades wound around its outer circumference, and multiple air holes between the lower spiral blades communicating with the annular cavity of the spiral inner tube; a sealing retaining ring, connected to the upper outer circumference of the spiral inner tube and sealing it to the upper inner wall of the outer cylinder; a sliding sleeve, the upper end of which is fixed in the lower port of the central tube by a shear pin, and the lower end of which is inserted into the central hole of the lower connector; and a locking ring, connected to the lower port of the sliding sleeve, with internal ratchet teeth on its inner wall. During gas-liquid injection, the central tube of this tool can serve as a gas-liquid injection channel, and during mechanical pumping production, it can be used as a gas anchor after being pressurized with a plug.

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