Hydraulic drive oil extraction device

A technology of hydraulic drive and oil production device, applied in the fields of fluid production, earthwork drilling, machine/engine, etc., can solve the problems of oil pipe perforation and sucker rod breakage, so as to reduce breakage, avoid wear and reduce energy consumption Effect
CN103671043AActive Publication Date: 2014-03-26BC P INC CHINA NAT PETROLEUM CORP +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BC P INC CHINA NAT PETROLEUM CORP
Publication Date
2014-03-26

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Abstract

The invention discloses a hydraulic drive oil extraction device, and belongs to the technical field of petroleum extraction. The oil extraction device comprises a ground power system (1) and an underground hydraulic drive double-acting oil well pump (2). The ground power system (1) comprises a power hydraulic cylinder (11) and a distribution valve assembly (12). The power hydraulic cylinder (11) and the distribution valve assembly (12) are communicated through a first liquid transport tube (13) and a second liquid transport tube (14). The underground hydraulic drive double-acting oil well pump (2) is provided with a first hydraulic oil outlet channel (21) and a second hydraulic oil outlet channel (22), wherein the first hydraulic oil outlet channel (21) is communicated with the first liquid transport tube (13), and the second hydraulic oil outlet channel (22) is communicated with the second liquid transport tube (14). By the adoption of the hydraulic drive oil extraction device, oil extraction can be conducted in a deviated well and a curved well without a sucker rod, and therefore abrasion of the sucker rod and an oil tube is avoided, accidents of parting of the sucker rod and holing of the oil tube are reduced, and the pump inspection period is prolonged.
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Description

technical field

[0001] The invention relates to the technical field of oil extraction, in particular to a hydraulically driven oil extraction device. Background technique

[0002] With the continuous improvement of oil extraction technology, the increasing difficulty of extraction, and the increasing requirements for low energy consumption and green mining, higher requirements are put forward for oil pumping equipment and methods in oil extraction. The oil pumping equipment in existing oil wells generally uses rod pumps to produce oil, and the rod pump mainly uses the cooperation of the sucker rod and the oil pipe, and the external motor drives the sucker rod to make piston movement in the oil pipe, so as to realize the oil flow from the oil well. was extracted out.

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: the oil well pump and the oil pipe will have serious wear and tear...

Claims

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