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Discharge assisting and liquid increasing device of oil pumping machine

A technology of pumping unit and liquid device, which is applied in the field of pumping unit auxiliary discharge and liquid booster, can solve the problems of affecting the oil production volume of oil wells, increasing maintenance costs, pump barrel leakage, etc., so as to reduce the leakage in the pump barrel and improve the oil well The effect of fluid production and reduction of plunger load

Inactive Publication Date: 2010-10-20
天津津港石油机械修造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The upward resistance of the plunger of the pumping unit is very large, and there is a lot of leakage in the pump barrel, which seriously affects the fluid production of the oil well
Due to the eccentricity of the rod column in the oil pipe, the sealing cup is abnormally worn, which prolongs the service life of the cup and increases the maintenance cost

Method used

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  • Discharge assisting and liquid increasing device of oil pumping machine
  • Discharge assisting and liquid increasing device of oil pumping machine
  • Discharge assisting and liquid increasing device of oil pumping machine

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Embodiment Construction

[0011] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. As shown in the figure, a liquid booster for pumping unit is mainly composed of upper joint 1, core pipe 2, 11, spring 3, sealing bowl assembly, sealing ring 7, steel ball 9, ball seat 10 and lower joint 12 The core tube is composed of core tube body A and core tube body B, which are plugged and fixedly connected to form a whole core tube. The upper end of the core tube body A is threaded with the upper joint, and the core tube body A is equipped with a The sealing frame 6 is equipped with a bowl-shaped sealing expansion ring 5, and the lower part of the sealing expansion ring is provided with a sealing ring. Then, the upper part of the inner hole of the core tube body B is provided with a ball stopper 8, the lower part of the inner hole of the core tube body B is provided with a ball seat, and a steel bal...

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Abstract

The invention relates to a discharge assisting and liquid increasing device of an oil pumping machine, which is characterized by mainly comprising an upper joint, a core pipe, a spring, a sealing bowl assembly, a sealing ring, a steel ball, a ball seat and a lower joint, wherein the core pipe is formed into a core pipe whole by inserting, fixing and connecting a core pipe body A and a core pipe body B, the upper end of the core pipe body A is in threaded connection with the upper joint, a sealing frame in sliding fit with the core pipe body A is arranged on the core pipe body A, a bowl-shaped sealing expansion ring is sleeved on the sealing frame, the sealing ring is arranged at the lower part of the sealing expansion ring, four axial semicircular long slots which are uniformly distributed in the inner hole of the core pipe body B are coincided and connected with the inner holes, a ball blocking rod is arranged at the upper part of the inner hole of the core pipe body B, the ball seat is arranged at the lower part of the inner hole of the core pipe body B, the steel ball is arranged on the ball seat, and the lower end of the core pipe body B is in threaded connection with the lower joint. The invention has the advantages that the discharge assisting and liquid increasing device is connected with an oil pumping rod string in segments and is used for lifting the crude oil in an oil pipe in segments, and the ascending resistance of a plunger piston is lightened, thereby reducing the internal leakage of a pump barrel and increasing the fluid production rate of an oil well.

Description

technical field [0001] The invention belongs to a pumping unit for an oil production well, and in particular relates to a pumping unit that assists drainage and enhances liquid. Background technique [0002] The oil pumped up by the pumping unit of the oil production well contains water, crude oil and fine sand. The upward resistance of the plunger of the pumping unit is very large, and there is a lot of leakage in the pump barrel, which seriously affects the fluid production of the oil well. Due to the eccentricity of the rod column in the oil pipe, the sealing cup is abnormally worn, which prolongs the service life of the cup and increases the maintenance cost. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned technologies, and provide a pumping unit auxiliary pumping booster, which is an auxiliary pumping tool for the pumping unit of an oil production well, and it is connected to the sucker ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00
Inventor 王金龙刘炳彦崔向海赵本华邓臣
Owner 天津津港石油机械修造有限公司
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