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Oil extraction system for valve type heavy oil extraction pump

An oil production system and valve pump technology, which can be used in the fields of fluid production, earthwork drilling, wellbore/well components, etc., and can solve problems such as viscosity reduction

Inactive Publication Date: 2013-05-08
宋倩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The object of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, and provide a valve-type thickening pump oil production system, which combines the advantages of the electric jet pump and the valve-type thickening pump, and successfully solves the problem of Problems of heavy oil swabbing and wellbore viscosity reduction

Method used

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  • Oil extraction system for valve type heavy oil extraction pump

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Effect test

Embodiment

[0020] like figure 1 As shown, the valve-type thickening pump oil recovery system involved in this embodiment is mainly composed of a casing 1 and a valve-type pump 2 arranged inside the casing 1, and the valve-type pump 2 is arranged at the lower half of the casing 1 .

[0021] A liquid blender 3 located above the valve pump 2 is also provided inside the casing 1 .

[0022] The casing 1 is sealed by a double-stage seal 4 .

[0023] The working process of the present invention is as follows: referring to the technical characteristics of the electric injection pump, adding a liquid blender on the pump to the oil production system of the valve pumping thick pump, injecting active water into the production pipe string through the liquid blender, emulsifying the heavy oil on the pump, In this way, the purpose of crude oil flowing to the wellhead and exporting is realized. The valve-type pump mixed with chemical agents to reduce viscosity technology combines the advantages of EF...

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Abstract

The invention discloses an oil extraction system for a valve type heavy oil extraction pump. The oil extraction system comprises a casing pipe (1) and a valve type pump (2) which is arranged inside the casing pipe (1), wherein the valve type pump (2) is arranged on the lower half part of the casing pipe (1); and a liquid mixing device (3) which is positioned above the valve type pump (2) is arranged inside the casing pipe (1). According to the oil extraction system, the advantages of an electronic injection pump and the valve type heavy oil extraction pump are combined, so that heavy oil pumping and the viscosity reduction of pitshaft are realized.

Description

technical field [0001] The invention relates to a valve-type thickening pump oil production system. Background technique [0002] As the availability of conventional oil is decreasing day by day, heavy oil is becoming an important energy source for mankind in the next century. After more than 20 years of hard work, the global heavy oil industry has developed faster than conventional oil. The annual output of heavy oil and tar sands has increased from 20 million tons to nearly 100 million tons, and its importance has attracted increasing attention. The difficulty of heavy oil reservoir development is mainly manifested in two aspects: on the one hand, the viscosity of heavy oil is high, and the seepage resistance of heavy oil in the oil layer is large, so that the heavy oil cannot flow from the reservoir to the bottom of the well; on the other hand, even in the reservoir Under certain conditions, the heavy oil can flow into the bottom of the well, but during the vertical lift...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20E21B43/22E21B33/122
Inventor 宋倩
Owner 宋倩
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