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Sand production oil well electric pump protector

A protector and sand production well technology, applied in pump components, drilling equipment, machines/engines, etc., can solve problems such as difficulty in starting the electric submersible pump, blockage of the pump head by sand, complicated situations, etc. The effect of accident occurrence, operation cost saving and long service life

Inactive Publication Date: 2007-05-02
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex geological conditions downhole, sand production is common in oil wells during production.
For oil wells produced by electric submersible pumps, when various factors cause the electric submersible pump to stop, the sand in the liquid in the tubing will slowly settle to the pump head above the outlet of the electric submersible pump under the action of gravity, often causing sand The pump head is blocked, making it difficult to start the electric submersible pump, or even burn out
[0003] In the prior art, if an electric pump accident occurs, it must be repaired and replaced by lifting the pipe string

Method used

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  • Sand production oil well electric pump protector
  • Sand production oil well electric pump protector
  • Sand production oil well electric pump protector

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Embodiment Construction

[0017] The sand producing oil well electric pump protector of the present invention will be further described in detail in conjunction with the accompanying drawings.

[0018] Referring to FIG. 1 , the sand producing oil well electric pump protector of the present invention includes: an outer pipe 2 , an inner pipe 3 , an upper joint 1 , a lower joint 6 , a righting short 5 , a nozzle 4 and an oil flow channel groove 7 .

[0019] The outer pipe 2 and inner pipe 3 of the sand producing oil well electric pump protector are connected together through the upper joint 1 and the lower joint 6, and the righting short joint 5 is connected to the lower end of the inner pipe 3 to block the lower end of the inner pipe and the inner righting The nozzle 4 is arranged on the inner pipe 3, and the oil flow channel groove 7 is arranged on the upper part of the inner pipe 3.

[0020] Eight nozzles 4 are distributed on the inner tube 3 . The nozzle 4 is a hard alloy nozzle, which has the chara...

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Abstract

An electric pump protector for the sand production oil well is composed of an external pipe and an internal pipe, which are connected by an upper jointer and a lower jointer, a short centralizing jointer connected to lower end of internal pipe and in contact with external pipe for blocking the lower end of internal pipe and centralizing it, at least one nozzle on internal pipe, and at least one gas-oil flowing slot on the upper part of internal pipe.

Description

technical field [0001] The invention relates to an oil well production tool, in particular to a sand producing oil well electric pump protector. Background technique [0002] In the process of oil extraction and production, electric pump wells are widely used for oil extraction. However, due to the complex geological conditions downhole, sand production is common in oil wells during production. For oil wells produced by electric submersible pumps, when various factors cause the electric submersible pump to stop, the sand in the liquid in the tubing will slowly settle to the pump head above the outlet of the electric submersible pump under the action of gravity, often causing sand Blocking the pump head will make it difficult to start the electric submersible pump, or even burn it out. [0003] In the prior art, if an electric pump accident occurs, the pipe string must be pulled down for maintenance and replacement. Under the current production conditions of the oil field,...

Claims

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Application Information

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IPC IPC(8): E21B43/02E21B17/10F04B53/00
Inventor 杨进余代美
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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