Linear motor drive and hydraulic driven oil pumping unit for oil extraction

A technology of linear motor and hydraulic transmission, which is applied in the direction of production fluid, earthwork drilling and production, wellbore/well components, etc. It can solve the problems of poor adaptability, complex ground equipment, high maintenance cost, etc., to reduce maintenance cost and solve the problem of large oil production load , adaptable effect

Active Publication Date: 2016-03-30
韩祥林
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Problems solved by technology

[0013] The invention provides a linear motor-driven hydraulic transmission power type oil pumping unit to overcom...

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  • Linear motor drive and hydraulic driven oil pumping unit for oil extraction
  • Linear motor drive and hydraulic driven oil pumping unit for oil extraction

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Embodiment Construction

[0044] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0045] Such as figure 1 , figure 2As shown, a linear motor-driven hydraulic transmission oil pumping unit includes a wellhead device 1, an oil pipe 2, an electric control device 3, a linear motor 4, a hydraulic power system 5 and an oil production pump 6; the wellhead device 1 is connected through the oil pipe 2 The linear motor 4 and the electric control device 3 are used to control the linear motor 4 and supply power to it. The linear motor 4 is set in the ...

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Abstract

The invention relates to a linear motor drive and hydraulic driven oil pumping unit for oil extraction, which comprises well head equipment, an oil pipe, electric control equipment, a linear motor, a hydraulic power system and an oil extraction pump, wherein the well head equipment is connected with the linear motor through the oil pipe; the electric control equipment is used for controlling the linear motor and supplying power to the linear motor; the linear motor is arranged in a well and provides power for the hydraulic power system; the hydraulic power system can provide power for the oil extraction pump to do up-down reciprocating motion. The linear motor drive and hydraulic driven oil pumping unit for oil extraction has the beneficial effects of overcoming the technical defects of complex ground equipment, high one-time investment maintenance cost and poor adaptability.

Description

【Technical field】 [0001] The invention relates to a pumping unit for oil production, in particular to a linear motor-driven hydraulic transmission type pumping unit for oil production. 【Background technique】 [0002] In the prior art, the basic methods used by oil and gas fields at home and abroad to upgrade underground crude oil include the initial oil recovery method using formation pressure self-spraying; after the initial stage, external conditions are artificially created, and underground crude oil is extracted by supplementing formation energy or using power machinery. [0003] Among them, the power mechanical method is roughly divided into rod-type oil recovery and rod-less oil recovery. Rod-type oil extraction machinery includes: beam machine, chain machine, belt machine, screw machine, etc.; rodless oil pumping includes: hydraulic, gas lift, electric submersible pump, underground screw pump, etc. Among them, rod pumping units account for more than 95% of the total....

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Application Information

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IPC IPC(8): E21B43/00
CPCE21B43/00
Inventor 韩祥林
Owner 韩祥林
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