CN103775318A - Hydraulic transmission rodless oil pumping system - Google Patents

Hydraulic transmission rodless oil pumping system Download PDF

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Publication number
CN103775318A
CN103775318A CN201210405585.6A CN201210405585A CN103775318A CN 103775318 A CN103775318 A CN 103775318A CN 201210405585 A CN201210405585 A CN 201210405585A CN 103775318 A CN103775318 A CN 103775318A
Authority
CN
China
Prior art keywords
pump
oil
pump barrel
plunger
pump cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201210405585.6A
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Chinese (zh)
Inventor
田边
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Jiaotong University Jingsheng Technology Development Co Ltd
Original Assignee
Xian Jiaotong University Jingsheng Technology Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Jiaotong University Jingsheng Technology Development Co Ltd filed Critical Xian Jiaotong University Jingsheng Technology Development Co Ltd
Priority to CN201210405585.6A priority Critical patent/CN103775318A/en
Publication of CN103775318A publication Critical patent/CN103775318A/en
Pending legal-status Critical Current

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Abstract

Provided is a hydraulic transmission rodless oil pumping system. A power liquid storage tank is communicated with one end of a power liquid channel through a pump connection reversing valve, the power liquid channel is arranged in a liquid oil production pipe arranged in a sleeve, the other end of the power liquid channel is connected with one end of a fixed piston rod, the other end of the fixed piston rod is connected with a fixed plunger arranged in an up pump cylinder, the up pump cylinder is connected with one end of a small pump cylinder through a small plunger, an upper oil discharging valve is arranged in the small plunger, the other end of the small pump cylinder is connected with a large pump cylinder, a lower oil discharging pump is arranged in the large pump cylinder, and a plunger is arranged between the large pump cylinder and the inner wall of the liquid oil production pipe. The rodless system is simple in structure, long in service life, wide in application range and convenient to operate and construct.

Description

A kind of hydraulic transmission is without bar oil pumping system
Technical field
The present invention relates to oil recovery technique field, particularly a kind of hydraulic transmission is without bar oil pumping system.
Background technique
In the producing well in a lot of oil fields, all adopt sucker rod pumping technology, it is the main body of sucker-rod pumping that pumping well recovers the oil, and is also traditional oil production method of petroleum industry, is prevailing artificial lift mode always up to now.But in the pumping well oil production system in oil field, countries in the world, the oil well accident causing due to rod and tube partial-wear extensively exists.Along with the lower pump degree of depth increases, production fluid Water-Content Rise, eccentric wear problem is the trend of rising, and the economic loss therefore causing is every year huge.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of hydraulic transmission without bar oil pumping system, there is feature easy to use simple in structure.
To achieve these goals, the technical solution used in the present invention is:
A kind of hydraulic transmission is without bar oil pumping system, power fluid storage tank 14 is communicated with one end of power fluid passage 1 after connecing selector valve 17 by pump 15, power fluid passage 1 is placed in production fluid oil pipe 2, production fluid oil pipe 2 is placed in sleeve pipe 4, one end of another termination fixed piston rod 5 of power fluid passage 1, the other end of fixed piston rod 5 is connected to the non-movable piston 7 being arranged in up pump barrel 6, up pump barrel 6 connects one end of little pump barrel 10 by small plunger 8, in small plunger 8, be provided with outlet valve 9, the large pump barrel 13 of another termination of little pump barrel 10, in large pump barrel 13, be provided with down oil pump 12, between large pump barrel 13 and production fluid oil pipe 2 inwalls, be provided with plunger 11.
Between described power fluid storage tank 14 and the connecting passage of selector valve 17, accumulator 16 is set.
The present invention compared with prior art, is a kind of without lever system, simple in structure, long service life, and Applicable scope is wide, and job execution is convenient.Can adapt to the oil well production of the special operation conditions such as stratum is permeated, height is moisture, casing deformation.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is carried out to more detailed explanation.
As shown in the figure, the present invention be a kind of hydraulic transmission without bar oil pumping system, power fluid storage tank 14 is communicated with one end of power fluid passage 1 after connecing selector valve 17 by pump 15, is also provided with during this time accumulator 16.Power fluid passage 1 is placed in production fluid oil pipe 2, production fluid oil pipe 2 is placed in sleeve pipe 4, between production fluid oil pipe 2 and sleeve pipe 4, it is oil jacket annular space 3, one end of another termination fixed piston rod 5 of power fluid passage 1, the other end of fixed piston rod 5 is connected to the non-movable piston 7 being arranged in up pump barrel 6, up pump barrel 6 connects one end of little pump barrel 10 by small plunger 8, in small plunger 8, be provided with outlet valve 9; the large pump barrel 13 of another termination of little pump barrel 10; in large pump barrel 13, be provided with down oil pump 12, between large pump barrel 13 and production fluid oil pipe 2 inwalls, be provided with plunger 11.
Working principle of the present invention is:
First, up stroke surface pump pumps into up pump barrel inner chamber by high voltage power liquid by center tube power fluid passage, up pump barrel is up, drive small plunger, upper outlet valve, large plunger and lower outlet valve up, hydraulic pressure cavity A is compressed, pressure rise, this at present outlet valve close, A chamber production fluid enters people B chamber, overcomes head of liquid and backs down outlet valve and enter oil pipe.
Then, down stroke selector valve commutation, surface pump is to accumulation of energy in accumulator, and power fluid is communicated with normal pressure liquid container, and pressure is 0.1 MPa, and due to the differential pressure action formation hydraulic feedback power of production fluid fluid column and oil jacket annular space fluid column, upper outlet valve cuts out.Under the effect of hydraulic feedback power, up pump barrel, small plunger, upper outlet valve, large plunger and lower outlet valve are descending, weary power in up pump barrel is dense pushes back ground storage tank by center tube power fluid passage, A cavity volume increases simultaneously, inhale people B chamber production fluid, B cavity pressure reduces, and inhales the outer production fluid of people's pump.

Claims (2)

1. a hydraulic transmission is without bar oil pumping system, it is characterized in that, power fluid storage tank (14) is communicated with one end of power fluid passage (1) after connecing selector valve (17) by pump (15), power fluid passage (1) is placed in production fluid oil pipe (2), production fluid oil pipe (2) is placed in sleeve pipe (4), one end of another termination fixed piston rod (5) of power fluid passage (1), the other end of fixed piston rod (5) is connected to the non-movable piston (7) being arranged in up pump barrel (6), up pump barrel (6) connects one end of little pump barrel (10) by small plunger (8), in small plunger (8), be provided with outlet valve (9), the large pump barrel of another termination (13) of little pump barrel (10), in large pump barrel (13), be provided with down oil pump (12), between large pump barrel (13) and production fluid oil pipe (2) inwall, be provided with plunger (11).
2. hydraulic transmission according to claim 1, without bar oil pumping system, is characterized in that, between described power fluid storage tank (14) and the connecting passage of selector valve (17), accumulator (16) is set.
CN201210405585.6A 2012-10-22 2012-10-22 Hydraulic transmission rodless oil pumping system Pending CN103775318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210405585.6A CN103775318A (en) 2012-10-22 2012-10-22 Hydraulic transmission rodless oil pumping system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210405585.6A CN103775318A (en) 2012-10-22 2012-10-22 Hydraulic transmission rodless oil pumping system

Publications (1)

Publication Number Publication Date
CN103775318A true CN103775318A (en) 2014-05-07

Family

ID=50567951

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210405585.6A Pending CN103775318A (en) 2012-10-22 2012-10-22 Hydraulic transmission rodless oil pumping system

Country Status (1)

Country Link
CN (1) CN103775318A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246519A (en) * 2016-10-12 2016-12-21 中国科学院力学研究所 A kind of without bar aqueous vapor double-basis driving mining system
CN106522888A (en) * 2016-10-12 2017-03-22 中国科学院力学研究所 Water and gas double-base driving discharge and mining system
CN104270586B (en) * 2014-10-14 2017-05-17 中国电子科技集团公司第四十四研究所 Focal plane reading circuit in optional line-by-line or interlacing reading mode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104270586B (en) * 2014-10-14 2017-05-17 中国电子科技集团公司第四十四研究所 Focal plane reading circuit in optional line-by-line or interlacing reading mode
CN106246519A (en) * 2016-10-12 2016-12-21 中国科学院力学研究所 A kind of without bar aqueous vapor double-basis driving mining system
CN106522888A (en) * 2016-10-12 2017-03-22 中国科学院力学研究所 Water and gas double-base driving discharge and mining system
CN106522888B (en) * 2016-10-12 2018-09-18 中国科学院力学研究所 A kind of biradical driving mining system of aqueous vapor

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Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140507

C02 Deemed withdrawal of patent application after publication (patent law 2001)