Valve type heavy crude pump oil extraction system and oil extraction method thereof

A technology of oil production system and valve pump, which is applied in the direction of production fluid, earthwork drilling and production, wellbore/well components, etc., and can solve problems such as viscosity reduction

Inactive Publication Date: 2013-05-15
何丽
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  • 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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  • Valve type heavy crude pump oil extraction system and oil extraction method thereof

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Embodiment

[0025] 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 .

[0026] A liquid blender 3 located above the valve pump 2 is also provided inside the casing 1 .

[0027] The casing 1 is sealed by a double-stage seal 4 .

[0028] 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 a valve type heavy crude pump oil extraction system which is mainly composed of a sleeve (1) and a valve type pump (2) arranged in the sleeve (1), wherein the valve type pump (2) is arranged on the lower half portion of the sleeve (1), and a liquid mixing device (3) locating above the valve type pump (2) is further arranged in the sleeve (1). The invention further discloses an oil extraction method based on the oil extraction system. The valve type heavy crude pump oil extraction system and the oil extraction method integrate the advantages of an electric injection pump and a valve type heavy crude pump and successfully solve the problems of thickened oil pumping and wellbore viscosity reduction.

Description

technical field [0001] The invention relates to a valve-type thickening pump oil recovery system and an oil recovery method thereof. 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 w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00E21B43/20
Inventor 何丽
Owner 何丽
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