High-pressure high-efficiency fluid servo pump and using method thereof

Abstract

The invention discloses a high-pressure high-efficiency fluid servo pump and a using method thereof. The servo pump comprises two sealing boxes, compression mechanisms are arranged in the two sealingboxes, a first sealing cavity and a third sealing cavity are arranged between the two sides of the interior of the sealing box on the upper side and the corresponding compression mechanism, a second sealing cavity and a fourth sealing cavity are arranged between the two sides of the interior of the sealing box on the lower side and the corresponding compression mechanism, the first sealing cavityand the fourth sealing cavity communicate with an upper side through opening and a left side through opening of one four-way pipe through connecting pipes, the second sealing cavity and the third sealing cavity communicate with an upper side through opening and a left side through opening of another four-way pipe through connecting pipes, and lower side through openings of the two four-way valvescommunicate with a low pressure air inlet pipe opening. According to the high-pressure high-efficiency fluid servo pump and the using method, the torque generated by driving a gear and rack cylinder to rotate through a servo motor is large, the extrusion force of air is relatively large, the high air pressure can be obtained, and much convenience is brought to reducing petroleum density and achieving petroleum exploitation.

Description

technical field [0001] The invention relates to the technical field of oil field exploitation equipment, in particular to a high-pressure and high-efficiency fluid servo pump and a use method thereof. Background technique [0002] At present, the gas lift method used in oilfields relies on the high-pressure gas injected from the surface into the well to mix with the oil layer produced fluid in the wellbore. The expansion of the gas reduces the density of the mixed liquid in the wellbore, thereby lifting the fluid in the wellbore. The gas lift method is used for oil recovery, and the most important part inside the device is the gas pump, which can compress the gas and inject the compressed gas into the oil layer through the wellbore, thereby reducing the density of the oil and making it easier to extract the oil. [0003] After searching, the Chinese patent authorization number CN205876673U discloses a small displacement servo motor submersible diaphragm pump, including a dia...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-pressure and high-efficiency fluid servo pump and its use method. The torque of the rack-and-pinion cylinder driven by the servo motor is relatively large, and the extrusion force on the gas is relatively large, so that the advantages of relatively high gas pressure can be obtained. , to solve the problem that the existing air pump used for oil exploitation has a small torque and limited compression force on the air, and cannot obtain high air pressure to mix with the oil layer, so that the oil density cannot be reduced

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