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Anti-airlock oil well pump

An oil well pump and anti-air technology, which is applied in the direction of pumps, pump components, variable displacement pump components, etc., can solve the problems of reducing production, reducing the filling coefficient of oil well pumps, affecting production, etc., and achieve the effect of increasing production and preventing air lock

Inactive Publication Date: 2014-09-10
天津广兴万达石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The associated gas or dissolved gas in the oil reduces the filling coefficient of the oil well pump, which not only reduces the pump efficiency but also reduces the output
High oil-gas ratio will cause air lock of oil well pump, affecting production

Method used

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  • Anti-airlock oil well pump
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  • Anti-airlock oil well pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention will not be limited.

[0013] Such as figure 1 As shown, the anti-airlock oil well pump of the present invention comprises a cylindrical upper pump barrel 1, a gas-liquid exchange chamber 2 and a lower pump barrel 3; , the top of the upstream floating valve 7 is connected with a sucker rod 9; the center of the bottom of the lower pump barrel 3 is provided with a spherical oil inlet valve 6. The gas-liquid exchange chamber set between the upper pump barrel and the lower pump barrel is cylindrical, and the piston arranged inside the pump barrel cooperates with the inner surface of the upper pump barrel and the lower pump barrel to seal, and the inner surface of the gas-liquid exchange chamber is sealed. There is an annular space in between.

[0014] The function of the gas-liquid exchange chamber 2 (hereinafter referred to as the...

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Abstract

An anti-airlock oil well pump can normally work in a high gas-oil-ratio oil well, associated gas and dissolved gas in the oil well will not make the pump locked by itself. The oil well pump comprises an upper cylindrical pump cylinder, a gas and liquid exchange cavity and a lower pump cylinder, an upper traveling valve, a piston and a lower traveling vale are arranged in the whole pump cylinder and connected in sequence, and a sucker rod is connected to the top end of the upper traveling valve; a spherical oil inlet valve is arranged in the center of the bottom end of the lower pump cylinder. The gas and liquid exchange cavity arranged between the upper pump cylinder and the lower pump cylinder is cylindrical, the piston arranged in the whole pump cylinder is matched with the inner surface of the upper pump cylinder and the inner surface of the lower pump cylinder for sealing, and annular space is formed between the piston and the inner surface of the gas and liquid exchange cavity. The anti-airlock oil well pump has the advantages that airlock of the oil well pump can be prevented, the fullness coefficient of the oil well pump is effectively increased, and the pump efficiency is improved; the oil well pump is used in the high gas-oil-ratio oil well for pumping oil, gas enters an upper pump and an oil pipe through the exchange cavity so that the specific gravity of a liquid column in the oil pipe is lowered, blowing is induced, spraying can be performed with pumping, and the yield is increased.

Description

technical field [0001] The invention relates to an oil production equipment, in particular to an oil well pump. Background technique [0002] At present, the conventional oil well pump is suitable for the production of oil wells with low oil and gas ratio in oil well production. The associated gas or dissolved gas in the oil reduces the filling coefficient of the oil well pump, which not only reduces the pump efficiency but also reduces the output. High oil-gas ratio will cause air lock of oil well pump and affect production. Contents of the invention [0003] In order to solve the air lock caused by air in the oil pump and reduce the pump efficiency due to the air, the invention provides an anti-air lock oil pump. [0004] The technical solution adopted by the present invention to solve the technical problem is to provide an anti-airlock oil well pump. The oil well pump of the present invention includes a cylindrical upper pump barrel, a gas-liquid exchange chamber and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B47/00F04B53/16
Inventor 魏士博马东魏荣辉
Owner 天津广兴万达石油科技有限公司
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