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Self-cleaning desilting device

A sand settler, self-cleaning technology, applied in non-variable pumps, machines/engines, parts of pumping devices for elastic fluids, etc., can solve pump shaft twisting, user economic loss, motor Problems such as overloading and burning

Inactive Publication Date: 2008-05-28
东营市东营区创新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the power grid, control system, and oil pipeline fail, it needs to be shut down. After the shutdown, the sand in the well fluid of the pipe string will be deposited on the check valve under the action of gravity, causing the motor to be overloaded and burned, the cable current to be too large to burn or the pump shaft Accidents such as twisting and breaking will bring huge economic losses to users

Method used

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  • Self-cleaning desilting device

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Embodiment Construction

[0008] Referring to the accompanying drawings, the self-cleaning sand settler is composed of a lower joint 1, an outer pipe 2 and a coupling 7 to form a cylinder body. An inner pipe 3 whose top end is blocked by a plug 6 is sleeved in the outer pipe 2, and the lower end of the inner pipe 3 is threadedly connected with the lower joint 1, and an annular cavity is formed between the inner pipe 3 and the outer pipe 2. The inner diameter of the middle and upper part of the inner tube 3 is slightly larger than that of the lower half, and the middle part and the bottom of the inner tube 3 are respectively provided with diversion holes, which communicate with the annular cavity. The bottom inner wall of the lower half of the inner tube 3 is provided with a shoulder, and the upper oil hole sand retaining ring 5 that slides and cooperates with it is installed in the upper half of the inner tube 3, and the lower half of the inner tube 3 is equipped with a The sand retaining ring 4 of the...

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Abstract

The self-cleaning desanding apparatus is composed of the low connector, external pipe and coupler. Inside the external pipe ia internal pipe with sealed end is sleeved in. The bottom of the internal pipe is connected with the lower connector, the inner diameter of the middle part of the intenal pipe is greater than the diameter of the bottom part. The diversion holes are set dividedly, the upper and lower oil holes sand-resist ring which are adapting with the sliding motion of the internal pipe are installed on the upper and lower parts of the internal pipe. The upper and lower oil holes sand-resist ring can can automatically control smooth of the flow to carry the sediment to solve the problem of the sediment of the electric pump well.

Description

Technical field: [0001] The invention relates to a self-cleaning sand settling device used for preventing electric pump wells from settling down during the downhole oil recovery operation of an oil field. Background technique: [0002] Electric submersible pump is an important measure to increase production and increase liquid production in oil fields. Due to the high fluid production volume and high fluid production intensity of electric pump wells, most of the electric pump well formations have different degrees of sand production, and sand-bearing mining is inevitable. When the power grid, control system, and oil pipeline fail, it needs to be shut down. After the shutdown, the sand in the well fluid of the pipe string will be deposited on the check valve under the action of gravity, causing the motor to be overloaded and burned, the cable current to be too large to burn or the pump shaft Accidents such as twisting and breaking will bring huge economic losses to users. ...

Claims

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Application Information

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IPC IPC(8): F04D29/70
Inventor 谢伟郑家远林正东彭江滨
Owner 东营市东营区创新科技有限公司
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