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External valve type hydraulic self-sealing plunger oil-well pump

An external oil well pump technology, applied in variable capacity pump components, pumps, pump components, etc., can solve problems such as complex operations, low efficiency, and large friction of plunger pumps

Inactive Publication Date: 2009-07-01
HEILONGJIANG JIAXIN PETRIFACTION MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an external hydraulic self-sealing plunger oil well pump, which is suitable for small-diameter, small-displacement wells, and can solve the problem of large friction resistance, large theoretical displacement and low efficiency of conventional plunger pumps. Complicated tasks, etc.

Method used

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  • External valve type hydraulic self-sealing plunger oil-well pump
  • External valve type hydraulic self-sealing plunger oil-well pump
  • External valve type hydraulic self-sealing plunger oil-well pump

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Embodiment Construction

[0016] Depend on figure 1 As shown, similar to the existing oil well pump, the valve external hydraulic self-sealing plunger oil well pump of the present invention is sequentially equipped with a sucker rod 1, a floating valve 2 and a plunger 3 placed in the pump barrel 5 from top to bottom. ;Different from existing oil well pumps:

[0017] The upper part of the pump barrel 5 is provided with a sealing section 4, and the lower part is fixedly connected with a fixed valve 6 and a fixed locking support 7. 6 interlinked channels;

[0018] The lower end of the locking support seat 8 is fixedly connected with a sub-cavity bridging joint 9, the sub-cavity bridging joint 9 has a horizontal hole 91 and a vertical hole 92 communicating with each other, and the vertical hole 92 communicates with the passage in the middle of the fixed locking support 7;

[0019] Set an outer pipe 11 as a flushing pipe or an oil pipe, the outer pipe 11 is sleeved outside the above-mentioned components, ...

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Abstract

The present invention provides a external valve hydraulic pressure self-sealing plunger piston traveling valve oil pump, which mainly includes a traveling valve, a plunger piston, a pump barrel and a fixed valve, wherein the fixed valve is fixedly mounted on the lower part of the pump barrel; the traveling valve id disposed on the upper part of the external part of the plunger piston, and the fixed valve on the lower part of the pump barrel connects with a fixed locking support that inserted into a locking support seat; a lift-up mechanism can pull the pump out of the well; a sub-cavity bridge connector and a backwash valve are set to form two private channel of oil pumping and cleaning so as to make pump detection and cleaning operation more convenient, and reduces production cost. The pump is provided with high efficiency, small diameter and friction, long service life, convenient operation and no pollution.

Description

Technical field: [0001] The invention belongs to the lifting field of petroleum exploitation machinery, and in particular relates to a plunger oil well pump of a pumping unit, which is a hydraulic plunger oil well pump with a small plunger diameter and self-sealing function. Background technique: [0002] At present, pumping oil with a rod plunger pump is one of the traditional lifting methods in the world petroleum industry, and it is also the dominant artificial lifting method so far. The first stage of rod pump pumping technology development is the bushing plunger pump, and the second stage is the whole barrel plunger pump, which is widely used at present. However, conventional plunger pumps have problems such as large friction, low efficiency, and complicated operations. When there are more oil and solid-containing particles, there is greater frictional resistance. As the gap becomes smaller and the polymer concentration becomes larger, the axial pressure becomes larger...

Claims

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Application Information

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IPC IPC(8): F04B53/10F04B47/12
CPCE21B43/127F04B43/1207
Inventor 韩修廷苏翔李俊亮郝成志程远方李明
Owner HEILONGJIANG JIAXIN PETRIFACTION MACHINERY
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