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Piston type double-acting deep-well pump device

A double-acting, piston-type technology, used in pumps with flexible working elements, pumps, wellbore/well components, etc., can solve the problems of low pump displacement, low mechanical recovery efficiency, and low production in deep wells, and achieve higher crude oil. Yield, the efficiency of machine mining is improved, and the effect of alleviating mechanical fatigue

Inactive Publication Date: 2018-03-30
徐景梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a piston-type double-acting deep well pump device, which solves the problem that the pumping unit pumps out oil in the upstroke but does not produce oil in the downstroke, and the downstroke of the pumping unit cannot be fully and effectively utilized, resulting in the displacement of the deep well pump. The technical problems of low output and low efficiency of mechanical recovery have achieved the technical effect of providing a double-acting oil output and high efficiency

Method used

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  • Piston type double-acting deep-well pump device
  • Piston type double-acting deep-well pump device
  • Piston type double-acting deep-well pump device

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Embodiment Construction

[0021] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementations.

[0022] figure 1 This is a schematic diagram of the structure of a piston type double-acting deep well pump in a preferred embodiment of this application, please refer to figure 1 with image 3 , The present invention provides a piston type double-acting deep well pump device. The device includes a working cylinder 1, a piston 2, a sealing bush 7, an oil rod 3, a first joint 4, a second joint 5 and a fixing seat 6.

[0023] The working cylinder 1 has a hollow structure, and the sealing bushing 7 is arranged in the working cylinder 1 and is tightly fitted with the inner wall of the working cylinder 1; the piston 2 is placed in the working cylinder 1, and The inner wall of the working cylinder 1 is tightly fitted, a first chamber 11 is formed between the sea...

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Abstract

The invention discloses a piston type double-acting deep-well pump device. The piston type double-acting deep-well pump device comprises a working cylinder, a piston, a sealing bush, an oil rod, a first connector, a second connector and a fixing base. The working cylinder is of a hollow structure, and the sealing bush is arranged in the working cylinder and is tightly matched with the inner wall of the working cylinder. The piston is arranged in the working cylinder and is tightly matched with the inner wall of the working cylinder, a first cavity is formed between the sealing bush and the piston, a first hole communicated with the first cavity is formed in the sealing bush, a first hole is formed in the middle of the piston, and the oil rod penetrates through the sealing bush and the first hole and is connected with the first hole and the inner ring of the sealing bush in a tight fit mode. The top and the bottom of the first hole are provided with a first conical surface and a secondconical surface respectively. A first joint and a second joint are arranged on the oil rod in a sleeved mode and fixed on the oil rod.

Description

Technical field [0001] The invention relates to the technical field of oil fields, in particular to a piston type double-acting deep well pump device. Background technique [0002] A deep well pump is an essential oil extraction device that uses an electric motor and a pumping unit to cooperate with each other to realize oil field production. It is a pump that is immersed in an underground oil well to suck and transport oil and is widely used in oil fields. The piston and working cylinder of the deep well pump form an oil inlet and discharge chamber. The pumping unit discharges oil on the upper stroke, but does not discharge oil on the down stroke. The lower stroke of the pumping unit cannot be fully and effectively utilized, and the displacement of the deep well pump is low. Disadvantages of low and low machine mining efficiency. At the same time, affected by the working principle of deep well pumps in the prior art, the system load increases during the upward stroke of the pum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B47/00E21B43/00
CPCE21B43/00F04B47/00
Inventor 徐景梅
Owner 徐景梅
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