Tubing pump

An oil well pump and tube type technology, applied in the field of tube type oil well pump, can solve the problems of low pump efficiency and loss of oil and crude oil liquid in the tube type well well pump, and achieve the effect of low cost and high efficiency

Pending Publication Date: 2022-01-25
陕西卓远能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a tubular oil well pump, which replaces the self-sealing steel ball sealing method of the existing tubular oil well pump wi

Method used

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Embodiment

[0044] When the present invention is used, when the oil well pump is pressed down by the downstroke piston, due to the gravity falling of the crude oil and the downstroke pressure of the piston, a downward pressure is formed in the blind hole, which provides downward movement for the valve ball and closes the valve port. Power increases the closing speed of the valve ball; and because the positioning shaft at the upper end of the valve ball can only slide back and forth in the sleeve, the restricted valve ball can only open and close at the valve port up and down, the return time is short, and the return accuracy is high. Therefore, when the downstroke piston is pressed down, the valve ball returns to the closed position quickly and accurately. At this time, since the sealing sleeve is provided with an inner concave fillet with the same radian as the ball valve, a rigid seal of the ball valve is completed, and then through The diameter of the ball valve and the diameter of the ...

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Abstract

The invention belongs to the technical field of petroleum collection, and relates to a tubing pump which comprises a pump cylinder, a piston and a standing valve, the piston is arranged in the pump cylinder, the standing valve is arranged on the pump cylinder on the lower portion of the piston, the standing valve comprises a valve body and an adapter, the valve body is in a cylinder shape, and a four-section type stepped hole is formed in the inner wall of the valve body; and a valve ball which can only be opened and closed up and down in the radial direction is arranged in the stepped hole, a first annular groove is horizontally formed in the outer circumferential surface of the valve ball, and a flexible sealing ring is arranged in the first annular groove. The mechanical rigid sealing and flexible material double sealing mode is used for replacing an existing tubing pump steel ball self-sealing mode, and the problems that oil liquid is lost in the down stroke of an existing oil well pump, the valve ball disturbs the liquid in the up stroke of the existing oil well pump, the inlet amount of the liquid is reduced, and therefore the pump efficiency is reduced are solved.

Description

technical field [0001] The invention belongs to the technical field of oil collection and relates to a tubular oil well pump. Background technique [0002] Petroleum has made an irreplaceable important contribution to the development of modern society and economy, and has a very wide range of roles and functions in the development of society and economy. Food, clothing, housing, transportation, industry, aerospace and military are inseparable from petroleum and its derivatives. [0003] Tubular oil well pump is a kind of rod well pump. Its characteristic is that the working cylinder (outer cylinder and bushing) is assembled on the ground and then connected to the lower part of the oil pipe, first lowered into the well, then put into the fixed valve, and finally the piston is connected to the pump. The lower end of the oil rod column is lowered into the pump barrel. Tubular pumps are widely used in various oil wells and oil fields because of their large pump diameter, large ...

Claims

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Application Information

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IPC IPC(8): F04B47/02F04B53/10F04B53/20F04B53/06
CPCF04B47/02F04B53/1002F04B53/20F04B53/06
Inventor 王伟马武宪傅杰刘超
Owner 陕西卓远能源科技有限公司
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