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Rodless Pump Fixed Valve

A technology of rodless pumps and fixed valves, which is applied in the direction of pumps, pump components, variable capacity pump components, etc., can solve the problems of affecting pump efficiency and fluid channels cannot be effectively closed, and achieve the effect of improving pump efficiency

Active Publication Date: 2021-07-02
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a rodless pump fixed valve, which can be used to solve the problem of affecting pump efficiency when the rodless pump fixed valve provided by the prior art is applied in a horizontal well because the fluid channel cannot be effectively closed

Method used

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  • Rodless Pump Fixed Valve

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Embodiment Construction

[0039] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0040] Please refer to figure 1 , which shows a schematic structural view of a fixed valve of a rodless pump provided by an embodiment of the present application. The fixed valve of the rodless pump may include: a valve head 1 , a valve head cap 2 , a suspension mechanism and a valve ball 3 .

[0041] Such as figure 1 As shown, the first end of the valve head 1 is formed with a joint 4 for connecting the rodless pump, and the second end of the valve head 1 is detachably connected to the first end of the valve head cap 2 .

[0042] Optionally, the above joint 4 is adapted to the joint on the rodless pump, so as to realize the detachable connection between the rodless pump and its fixed valve. In one example, the above-mentioned...

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PUM

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Abstract

The embodiment of the application discloses a rodless pump fixed valve, which belongs to the technical field of coal bed gas well exploitation. The fixed valve of the rodless pump includes: a valve head, a valve head cap, a hanging mechanism and a valve ball; the valve head and the valve head cap are connected to form a hollow cavity, and the hanging mechanism is located inside the hollow cavity and has an eccentric design; the hanging mechanism A fluid channel is formed inside in the axial direction, and one end of the fluid channel extends to the first end of the valve head and runs through the valve head; a valve ball seat is formed on the side of the suspension mechanism, and the valve ball is arranged on the valve ball seat ; An overflow passage is formed on the valve ball seat, and the central axis of the overcurrent passage is perpendicular to the central axis of the fluid passage. The embodiment of the present application provides a rodless pump fixed valve suitable for horizontal wells, which has better pump efficiency in horizontal wells.

Description

technical field [0001] The embodiment of the present application relates to the technical field of coalbed methane well exploitation, in particular to a fixed valve of a rodless pump. Background technique [0002] At present, during the mining process of coalbed methane, the desorption of methane gas in the coalbed is realized mainly through the discharge of a certain amount of water in the reservoir, and the reservoir pressure is lower than the critical desorption pressure. [0003] In the prior art, the water in the coalbed methane well is discharged mainly through a rodless pump (such as a jet pump, a tube pump, an electric submersible screw pump, etc.) and a fixed valve. The fixed valve has a columnar structure, and one end of the fixed valve is provided with a joint for connecting with the rodless pump. A fluid passage is formed inside the fixed valve. When the rodless pump is working, the water in the coalbed methane well can reach the rodless pump through the fluid ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/10F04B47/00E21B34/06
CPCE21B34/06F04B47/00F04B53/10
Inventor 祖世强崔金榜段宝玉马纪翔王小东郝丽张倩倩熊巍杨永祥刘斌
Owner PETROCHINA CO LTD