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

Abstract

The invention discloses a method and equipment for forcibly lifting water or oil by air energy. The method is completed by the following steps that firstly, an oil storage pipe and an oil discharge pipe are firstly arranged in a well casing pipe, each of the lower end of the oil storage pipe and the lower end of the oil discharge pipe is provided with an one-way valve, an inlet of the one-way valve arranged at the lower end of the oil discharge pipe is communicated with the bottom of an inner cavity of the oil storage pipe, a compressor provides high-pressure air energy for a high-pressure air storage tank and stores the high-pressure air energy, the high-pressure air storage tank is communicated with an air inlet of a control valve, an air outlet of the control valve is communicated with the oil storage pipe, when the air inlet and the air outlet are communicated, the high-pressure air can enter the oil storage pipe for pressing the liquid into the oil discharge pipe, finally, and the liquid is lifted onto the ground, so that the air outlet of the control valve is communicated with an exhaust opening, in addition, liquid in the well casing pipe enters an oil storage pipe cavity, and the circulation is repeatedly carried out in such a way. The method and the equipment have the advantages that no moving component is adopted under the ground, the fault rate is low, and the maintenance operation cost is greatly reduced.

Description

Technical field [0001] The invention relates to a method and equipment for extracting groundwater or oil, in particular to a method and equipment for forcibly lifting water or oil by using high-pressure gas energy as power for oil extraction or water extraction. Background technique [0002] At present, water pumps are generally used for water pumping equipment. The methods of oil extraction are mainly rod-based oil extraction and traditional rodless oil extraction technology. The equipment is mainly traditional downhole rod string and oil well pumps, electric submersible pumps, screw pumps and other equipment. In the process of oiling, the sucker pump has the disadvantage of overcoming the sucker rod’s own weight and it is prone to eccentric wear of the rod and tube; the cables and pumps of the electric submersible pump down to the bottom of the well are susceptible to abrasion, and they must be damaged once they are damaged. The pump can be started only after the operation is r...

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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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