Movable barrel type rotary plunger oil well pump

A rotary column and moving cylinder type technology, applied in the field of moving cylinder rotary plunger oil well pump, can solve problems such as increased energy consumption, impact on oil production, increased friction between the plunger and the pump barrel, etc.

Inactive Publication Date: 2009-05-27
新乡市乔山机械设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Although the American-style oil well pump widely used in oil fields has the advantage of simple structure, because the oil contains sand, water and corrosive substances, after the oil pump has been working for a period of time, sand burial and sand jams will occur in the pump, and the pump wall and plunger body will be damaged. Scaling on the surface increases the friction between the plunger and the pump barrel, increases energy consumption, eccentrically wears the tubing, and frequently repairs oil wells, which affects oil production and increases oil production costs

Method used

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  • Movable barrel type rotary plunger oil well pump
  • Movable barrel type rotary plunger oil well pump
  • Movable barrel type rotary plunger oil well pump

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Embodiment Construction

[0005] The present invention is described in detail in conjunction with the above accompanying drawings. In the pump cylinder 2, a moving cylinder 5 and a plunger body 11 are provided. Spiral pieces are evenly distributed on the top, and the lower end of the spiral flow channel formed between the spiral pieces communicates with the axial hole in the plunger body through the radial oblique hole 15 and the axial blind hole of the thruster body. The lower thruster is rotatably supported on the pump body. On the hemispherical fixed valve 14 at the lower end of the barrel, the lower end of the thruster 8 on the plunger is connected with the upper end of the plunger 11 with threads, and the upper end of the plunger is provided with an oil inlet valve and a valve ball 9, and the upper end of the thruster on the plunger is The body is evenly distributed with spiral pieces, and the spiral flow channel formed between the spiral pieces communicates with the plunger oil outlet valve throug...

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Abstract

The invention provides an actuating cylinder-type rotary plunger defueling pump and relates to a rotary plunger pump. The invention aims to provide an actuating cylinder-type rotary plunger defueling pump with no generation of sand stuck, energy conservation and low cost of oil extraction. The key points of the technical proposal comprise: an actuating cylinder and a plunger are arranged in a pump barrel; the plunger body is provided with an upper thruster and a lower thruster; the actuating cylinder is provided with a thruster and a rotary sealer; and a centering mechanism is arranged between the plunger and the actuating cylinder. The pump is used for a defueling machine.

Description

Technical field: [0001] The invention relates to a rotary piston pump, in particular to a moving cylinder type rotary piston oil well pump. Background technique: [0002] Although the American-style oil well pump widely used in oil fields has the advantage of simple structure, because the oil contains sand, water and corrosive substances, after the oil pump has been working for a period of time, sand burial and sand jams will occur in the pump, and the pump wall and plunger body will be damaged. Scaling on the surface will increase the friction between the plunger and the pump barrel, increase energy consumption, partial wear of tubing, and frequent oil well repairs, which will affect oil production and increase oil production costs. Invention content: [0003] The purpose of the present invention is to provide a moving barrel type rotary plunger oil well pump which does not generate sand burial, saves energy due to sand sticking, and has low oil production cost. The tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B47/00F04B53/00F04C18/00
Inventor 李性伟鲁广立袁志毅
Owner 新乡市乔山机械设备有限公司
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