Multifunctional oil-extraction and gas-injection integrated oil well pump for sanding heavy crude oil well

A multi-functional, oil-pumping technology, applied in the fields of fluid production, pumping, and earth-moving drilling, etc., can solve the problems of increasing the workload of downhole operations, prolonging the construction operation period, and missing the period of transfer to oil production, so as to reduce the workload of operation, improve the Improve the effect of thermal recovery and stable production, and solve the problem of sand production

Inactive Publication Date: 2009-09-09
潘昌德
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, after the steam huff and puff of sand producing heavy oil wells, the well fluid could not be pumped directly from the oil well with conventional oil well pumps, and the pump had to wait for the steam injection string to be pumped, which not only increased the workload of downhole operations, but also extended the construction cycle , and missed the most favorable period for pumping and oil production, which will pollute the oil layer and reduce the production of the oil well

Method used

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  • Multifunctional oil-extraction and gas-injection integrated oil well pump for sanding heavy crude oil well

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Embodiment Construction

[0007] Below in conjunction with accompanying drawing, the implementation of the present utility model is described.

[0008] As shown in the figure, the present invention includes five parts: double long pump barrel, long plunger, valve group, steam injection device and sand control device, consisting of 3 1 / 2 "Oil pipe 1, sucker rod 2, variable buckle short connection 3, 33, 36, locking cap 4, pump barrel outer seal 5, ring gasket 6, upper sealing body 7, pump barrel valve assembly 8, 5 1 / 2 "Casing collar 9, valve assembly on plunger 10, plunger 11, 5 1 / 2 "Casing 12, pump barrel protection sleeve 13, pump barrel 14, sand discharge pipe 15, bump pump cap 16, upper spring 17, bump pump short-circuit 18, 5 1 / 2 "Coupling 19, upper spring seat 20, 5 1 / 2 "Short connection 21, sealing valve seat 22, upper sealing valve 23, plunger lower valve assembly 24, working cylinder 25, pull rod 26, lower sealing ring 27, connection seat 28, lower spring seat 29, lower spring...

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Abstract

The invention relates to a multifunctional oil-extraction and gas-injection integrated oil well pump for a sanding heavy crude oil well, comprising a long pump cylinder, a long plunger, a valve group, a gas-injection device and a sand control device, wherein the long plunger and the valve group are arranged in the long pump cylinder, and the gas-injection device and the sand control device are connected with and mounted below the long pump cylinder. The oil well pump has reasonable design, novel structure and reliable operation and can enable the sanding heavy crude oil well to integrate sand washing, gas injection and oil extraction so as to lighten a great amount of downhole operation workload, effectively solve sanding problem and favorably improve the thermal recovery and stable yield effects of a pumping well.

Description

Technical field: [0001] The invention relates to a downhole device for steam injection and oil production in sand producing heavy oil wells. Background technique: [0002] With the prolongation of steam injection thermal recovery time of heavy oil, the sand production of oil wells is becoming more and more serious, which has a negative impact on its stable production and normal production. In the past, after the steam huff and puff of sand producing heavy oil wells, the well fluid could not be pumped directly from the oil well with conventional oil well pumps, and the pump had to wait for the steam injection string to be pumped, which not only increased the workload of downhole operations, but also extended the construction cycle , and missed the most favorable period of pumping and oil production, which will pollute the oil layer and reduce the production of the oil well. Invention content: [0003] The purpose of the present invention is to provide a method that can dir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B47/00E21B43/00
Inventor 潘昌德潘琳琳高侃郭建伟杨喜良冯景杰沈英凯黎文超张守军宋福军万学文刘国华张小文郎成山张建心屈广操张岩迟凤丽
Owner 潘昌德
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