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Auxiliary dismounting device for rod pump

An auxiliary device and rod pump technology, which is applied to parts of pumping devices for elastic fluids, variable displacement pump parts, pump components, etc., and can solve the problem of small fitting clearance of rod pumps and the frequency of rod pump stuck pumps increase, stuck pump failure and other problems, to avoid repeated pump inspections and eliminate operational risks

Inactive Publication Date: 2016-02-03
刘平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the deepening of my country's oilfield development process, the formation energy gradually decays, the fluid supply capacity of oil wells deteriorates, and the dynamic fluid level of mechanically pumped wells decreases year by year. The large-scale application of rod pump deep pumping technology has achieved remarkable results. There are some disadvantages: the rod pump has a small fit gap, and it is prone to pump stuck faults. With the continuous promotion of gas injection technology, the frequency of rod pump stuck pumps has further increased due to the influence of gas injection well scaling and corrosion.
[0003] In order to find out why the pump is stuck, the rod pump must be disassembled, and the gas injection will easily cause the pressure in the pump barrel of the rod pump to be suppressed. Professional pressure relief tools assist in dismantling the pump safely, which can easily lead to personal injury accidents

Method used

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  • Auxiliary dismounting device for rod pump
  • Auxiliary dismounting device for rod pump

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Embodiment Construction

[0013] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0014] see figure 1 , is a structural schematic diagram of the first embodiment of the rod pump dismantling aid device in the present invention, as shown in the figure, the rod pump dismantling aid device in the present invention includes a sleeve 1 matched with the rod pump, and the sleeve 1 There is a rotatable ejector rod 3 inside, and the ejector rod 3 is facing the valve ball 41 inside the rod pump 4 pump cylinder. The high-pressure gas or high-pressure liquid in the leak out. In the first embodiment of the present invention, the sleeve 1 is sheathed on the bottom of the rod pump 4, and two sets of mounting holes are provided on the sleeve 1, wherein one set of mounting holes 11 is in...

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PUM

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Abstract

The invention provides an auxiliary dismounting device for a rod pump. The auxiliary dismounting device comprises a sleeve which is matched with the rod pump, wherein a rotatable ejector rod is arranged inside the sleeve. The ejector rod is opposite to a valve ball inside a pump barrel of the rod pump. In use, the ejector rod is rotated until the valve ball is ejected off by the ejector rod, so that high-pressure gas or a high-pressure liquid in the rod pump is leaked. According to the auxiliary dismounting device for the rod pump, the ejector rod capable of ejecting off the valve ball in the rod pump is mounted, so that simple, safe and quick pressure relief is realized.

Description

technical field [0001] The invention relates to a pressure relief tool, in particular to a pressure relief tool for a rod pump. Background technique [0002] With the deepening of my country's oilfield development process, the formation energy gradually decays, the fluid supply capacity of oil wells deteriorates, and the dynamic fluid level of mechanically pumped wells decreases year by year. The large-scale application of rod pump deep pumping technology has achieved remarkable results. There are some disadvantages: the rod pump has a small fit clearance, and it is prone to pump stuck faults. With the continuous promotion of gas injection technology, the frequency of rod pump stuck pumps has further increased due to scaling and corrosion of gas injection wells. [0003] In order to find out why the pump is stuck, the rod pump must be disassembled, and the gas injection will easily cause the pressure in the pump barrel of the rod pump to be suppressed. Professional pressure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/22F04B39/14
Inventor 刘平
Owner 刘平
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