Method and equipment for forcibly lifting water or oil by gas energy

Abstract

Disclosed is a method for forcibly lifting water or oil by air energy, comprising the following steps: disposing an oil storage pipe (11) and an oil discharging pipe (12) in a well casing pipe (6), lower ends of the oil storage pipe (11) and the oil discharging pipe (12) being provided with one-way valves, and an inlet of an one-way valve (10) at the lower end of the oil discharging pipe (12) being in communication with a bottom of an inner cavity of the oil storage pipe (11); providing and storing compressed air for a compressed air storage tank (2) via a compressor (1); the compressed air storage tank (2) is in communication with an air inlet (P) of a control valve (4), and an air outlet (A) of the control valve (4) is in communication with the oil storage pipe (11), such that when the air inlet (P) is in communication with the air outlet (A), the compressed air enters the oil storage pipe (11) to drive a liquid into the oil discharging pipe (12), and subsequently, to lift up the liquid above the ground surface; enabling the air outlet (A) of the control valve (4) to be in communication with an exhaust port (T), such that a liquid in the well casing pipe (6) enters the cavity of the oil storage pipe (11); and repeating and looping the above steps. Also disclosed is a device for forcibly lifting water or oil by the air energy. The device has no moving components in a well, resulting in a low failure rate, and greatly reducing maintenance and operation cost.

Description

technical field [0001] The invention relates to a method and equipment for extracting groundwater or oil production, in particular to a method and equipment for forcefully lifting water or oil by using high-pressure gas energy as power for oil recovery or water extraction. Background technique [0002] At present, water pumps are generally used for pumping equipment. The methods of oil production are mainly rod oil production and traditional rodless oil production technology. In the process of pumping oil, the oil well pumps all have the disadvantage of overcoming the work done by the self-weight of the sucker rod, and are prone to eccentric wear of the rod and tube; The pump can only be started after the operation is restarted, the operation is difficult and the cost is high; the screw pump also has similar shortcomings and deficiencies as the electric submersible pump, both of which have the problems of inconvenient transportation and installation and high maintenance cost...

AI Technical Summary

Problems solved by technology

[0002] At present, water pumps are generally used for pumping equipment. The methods of oil production are mainly rod oil production and traditional rodless oil production technology. In the process of pumping oil, the oil well pumps all have the disadvantage of overcoming the work done by the self-weight of the sucker rod, and are prone to eccentric wear of the rod and tube; The pump can only be started after the operation is restarted, the operation is difficult and the cost is high; the screw pump also has similar shortcomings and deficiencies as the electric submersible pump, both of which have the problems of inconvenient transportation and installation and high maintenance costs

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