A long stroke oil well pump

An oil well pump, long-stroke technology, applied in the direction of pumps, pump components, variable displacement pump components, etc., can solve the problems affecting the pump efficiency of the oil well pump, the stroke limitation of the oil well pump, and the normal production capacity of the oil well, etc., achieving low processing cost, Improve pump efficiency and release production capacity

Active Publication Date: 2022-05-10
PETROCHINA CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The oil well pump is one of the main lifting pumps in oil production engineering. Due to the limitation of processing cost and machining accuracy, the length of the pump barrel is limited to a certain extent, which limits the stroke of the oil well pump, which affects the operation of the oil well pump. Pump efficiency affects the normal production of oil wells

Method used

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  • A long stroke oil well pump
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  • A long stroke oil well pump

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Embodiment Construction

[0022] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0023] A long-stroke oil well pump, including an inner pump barrel and an outer pump barrel arranged inside and outside, both of the inner pump barrel and the outer pump barrel are in an upright state, and a fixed valve is arranged in the lower end of the outer pump barrel, and the inner pump barrel Contains an upstream floating valve, a middle floating valve and a downstream floating valve arranged in sequence from top to bottom, the downstream floating valve is located above the fixed valve, the inner pump barrel can move up and down relative to the outer pump barrel, the upstream The movable valve, the middle movable valve and the downstream movable valve can move up and down synchronously w...

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Abstract

The invention discloses a long-stroke oil well pump, which comprises an inner pump barrel and an outer pump barrel arranged inside and outside, the inner pump barrel and the outer pump barrel are both upright, and a fixed valve is arranged inside the lower end of the outer pump barrel. The inner pump barrel contains an upstream floating valve, a middle floating valve and a downstream floating valve arranged in sequence from top to bottom. The downstream floating valve is located above the fixed valve. The movable valve can move up and down synchronously with the inner pump cylinder. The long-stroke oil well pump uses a combination pump barrel and a combination plunger to increase the stroke of the oil well pump, and the cost is lower than the processing cost of the oil well pump with the same stroke, which improves the pump efficiency of the oil well pump and enables the production of oil well The ability has been released to a certain extent.

Description

technical field [0001] The invention relates to the technical field of oil exploitation equipment, in particular to a long-stroke oil well pump. Background technique [0002] The oil well pump is one of the main lifting pumps in oil production engineering. Due to the limitation of processing cost and machining accuracy, the length of the pump barrel is limited to a certain extent, which limits the stroke of the oil well pump, which affects the operation of the oil well pump. The pump efficiency affects the normal performance of oil well production. Contents of the invention [0003] In order to improve oil pumping efficiency, the present invention provides a long-stroke oil well pump, which uses a combined pump barrel and combined plunger to increase the stroke of the oil well pump, and the cost is lower than that of the same stroke oil well pump. The processing cost is low, the pump efficiency of the oil pump is improved, and the production capacity of the oil inlet has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B47/00F04B53/10F04B53/16
CPCF04B47/00F04B53/162F04B53/1002F04B53/166
Inventor 王书慧罗恩勇麻鹏宇许坤苏娟闫瑞生蒋川赵长亮刘冬雷张乾赐
Owner PETROCHINA CO LTD
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