CN203641181U - Hydraulic power conversion control device - Google Patents

Hydraulic power conversion control device Download PDF

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Publication number
CN203641181U
CN203641181U CN201420006343.4U CN201420006343U CN203641181U CN 203641181 U CN203641181 U CN 203641181U CN 201420006343 U CN201420006343 U CN 201420006343U CN 203641181 U CN203641181 U CN 203641181U
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CN
China
Prior art keywords
hydraulic
hydraulic cylinder
control valve
oil
power
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Active
Application number
CN201420006343.4U
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Chinese (zh)
Inventor
潘军
里群
范龙江
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BEIJING WANPURUI ENERGY TECHNIQUE Co Ltd
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BEIJING WANPURUI ENERGY TECHNIQUE Co Ltd
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Priority to CN201420006343.4U priority Critical patent/CN203641181U/en
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Abstract

The utility model relates to a hydraulic power conversion control device which is used in an oilfield and comprises a power system, a hydraulic reversing system, a hydraulic cylinder pipeline system and an output liquid draining system. The hydraulic cylinder pipeline system comprises a hydraulic cylinder left-side outer cavity (3), hydraulic cylinder pistons (4), a hydraulic cylinder left-side inner cavity (5), a hydraulic cylinder right-side inner cavity (6) and a hydraulic cylinder right-side outer cavity (7); the output liquid draining system comprises a hydraulic cylinder power output pipeline, a hydraulic-control valve control pipeline and a liquid draining pipeline; a hydraulic-control valve (13) is arranged on the liquid draining pipeline. The hydraulic power conversion control device has the advantages that downhole output liquid can be used as a power medium, so that liquid of a shaft and power liquid can be prevented from being polluted, problems of degradation of the performance of the power liquid and the like due to leakage of an existing downhole power liquid system can be solved, and the hydraulic power conversion control device is convenient to use and high in work efficiency.

Description

A kind of hydraulic power conversion control device
Technical field
The utility model relates generally to a kind of power-converting control system of in oil gas field production process, liquid being carried out the pumping system of lifting that is applied to, and relates in particular to a kind of hydraulic power conversion control device for underground hydraulic reciprocating pump.
Technical background
In oil-gas mining, conventional reciprocating pump is the pumping system of commonly using the most, but the defect that this system is outstanding is: the phase mutual friction of beam hanger and oil pipe, thereby cause oil pipe perforation (worn out) to form the short circuit of down-hole liquid passage, when serious, there will be oil pipe, sucker rod to rub and cause the fall down-hole accident of well of flow string.In addition, it is that down-hole string is all in plumbness that rod pump is taken out the desirable working state of system, therefore well bore is more oblique, the side-abrasion of rod string occurring in working procedure is just more serious, if thereby to make rod pump system at high angle hole, cluster well, horizontal well, all its depth of falling well is had to clear and definite requirement or restriction.Therefore,, in order to overcome above-mentioned defect, occurred without bar underground hydraulic reciprocating pump, this oil hydraulic pump need use liquid as dynamic medium, still, usually uses the high-pressure hydraulic pump of common fracturing pump or alternate manner to carry out power-converting in prior art, use extremely inconvenience, working efficiency is low.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of hydraulic power conversion control device that is applicable to underground hydraulic reciprocating pump.
In order to realize foregoing invention object, the utility model provides a kind of hydraulic power conversion control device, comprise power system, hydraulic reversing system, oil hydraulic cylinder pipe-line system and production fluid discharge system, oil hydraulic cylinder pipe-line system comprises oil hydraulic cylinder left side outer chamber, hydraulic cylinder piston, oil hydraulic cylinder left side inner cavity chamber, oil hydraulic cylinder right side inner cavity chamber and oil hydraulic cylinder right side outer chamber; Production fluid discharge system comprises oil hydraulic cylinder power output pipe, hydraulic control valve pilot line and drain line; In drain line, be provided with hydraulic control valve; Hydraulic control valve pilot line comprises hydraulic control valve unlatching control valve and hydraulic control valve closing control pipe; Hydraulic control valve is opened control valve one end and is connected with oil hydraulic cylinder left side inner cavity chamber, and the other end is connected with hydraulic control valve opening state port; Hydraulic control valve closing control pipe one end is connected with oil hydraulic cylinder right side inner cavity chamber, and the other end is connected with hydraulic control valve closed condition port.
Described power system comprises hydraulic oil tank, relief valve, hydraulic oil filter, motor and gear pump.
Described hydraulic reversing system comprises selector valve, one-way valve, throttle valve.
Hydraulic power conversion control device of the present utility model, can use down-hole production fluid as dynamic medium, therefore all pollution-free to pit shaft liquid and power fluid, also need not consider that well dynamic liquid system is because of the power fluid performance reduction that causes of leakage etc., easy to use, working efficiency is high.
Brief description of the drawings
Fig. 1 is hydraulic power conversion control device of the present utility model schematic diagram in use.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, hydraulic power conversion control device of the present utility model comprises power system, hydraulic reversing system, oil hydraulic cylinder pipe-line system and production fluid discharge system.Power system comprises hydraulic oil tank 28, relief valve 27, hydraulic oil filter 26, motor 25 and gear pump 24; Hydraulic reversing system comprises selector valve 23, one-way valve 22, throttle valve 21; Oil hydraulic cylinder pipe-line system comprises left side hydraulic oil pipe 1, right side hydraulic oil pipe 2, oil hydraulic cylinder left side outer chamber 3, hydraulic cylinder piston 4, oil hydraulic cylinder left side inner cavity chamber 5, oil hydraulic cylinder right side inner cavity chamber 6, oil hydraulic cylinder right side outer chamber 7; Production fluid discharge system comprises oil hydraulic cylinder power output pipe (comprising high voltage power looped pipeline 8, high voltage power supervisor 15, production fluid filter 14), hydraulic control valve pilot line (comprising hydraulic control valve unlatching control valve 9, hydraulic control valve closing control pipe 10), drain line (comprising hydraulic control valve 13, liquid-discharging tube 12, production fluid gathering-device 11).
High voltage power looped pipeline 8 one end are connected with oil hydraulic cylinder right side outer chamber 7, and the other end is connected with production fluid filter 14, and are finally connected with down tube 17 at well head.High voltage power is responsible for 15 one end and is connected with oil hydraulic cylinder left side outer chamber 3, and the other end is connected with ascending tube 16 at well head.
Hydraulic control valve is opened control valve 9 one end and is connected with oil hydraulic cylinder left side inner cavity chamber 5, and the other end is connected with hydraulic control valve 13 opening state ports.Hydraulic control valve closing control pipe 10 one end are connected with oil hydraulic cylinder right side inner cavity chamber 6, and the other end is connected with hydraulic control valve 13 closed condition ports.Liquid-discharging tube 12 one end are connected with hydraulic control valve 13 passages, and the other end is communicated with production fluid gathering-device 11.
When the utility model work, starting electrical machinery 25, by motor 25 driven gear pumps 24 by inhalant liquid force feed in hydraulic oil tank 28, through the effect of gear pump 24, hydraulic oil is become high pressure and is first exported along diagram left side hydraulic oil pipe 1 from low pressure, enters oil hydraulic cylinder left side inner cavity chamber 5 after selector valve 23, throttle valve 21.Under the effect of pressure, hydraulic oil promotes hydraulic cylinder piston 4 and moves to the left, liquid in the outer chamber 3 of squeezed fluid cylinder pressure left side (oil well if, this liquid is oil water mixture, if gas well, this liquid is Separation of Water) and form High voltage output, underwell pump 19 starts to carry out up stroke, and meanwhile, high pressure liquid force feed is opened control valve 9 by hydraulic control valve and entered hydraulic control valve 13, make hydraulic control valve 13 in opening state, down tube 17 and high voltage power looped pipeline 8, liquid-discharging tube 12 are all in connected state.Hydraulic oil in oil hydraulic cylinder right side inner cavity chamber 6 flows back to hydraulic oil tank 28 through the throttle valve 21 in right side hydraulic oil pipe 2, selector valve 23, meanwhile, oil hydraulic cylinder right side outer chamber 7 sucks low pressure production fluid (if when gas well by high voltage power looped pipeline 8, this production fluid carries out air-water separation through the front needs of filter 14, this low pressure production fluid is the water after air-water separation), pit shaft production fluid flows into production fluid gathering-device 11 through hydraulic control valve 13, liquid-discharging tube 12.When hydraulic cylinder piston 4 arrives behind precalculated position, selector valve 23 starts commutation, and high pressure oil is exported along right side hydraulic oil pipe 2, enters oil hydraulic cylinder right side inner cavity chamber 6 after selector valve 23, right side throttle valve 21.Under the effect of pressure, hydraulic oil promotes hydraulic cylinder piston 4 and moves to the right, liquid in squeezed fluid cylinder pressure right side outer chamber 7 also forms High voltage output, underwell pump 19 starts to carry out down stroke, meanwhile, high pressure liquid force feed enters hydraulic control valve 13 by hydraulic control valve closing control 10, makes hydraulic control valve 13 in closed condition, high voltage power looped pipeline 8 only with down tube 17 in connected state, with liquid-discharging tube 12 in non-connected state.Hydraulic oil in the inner cavity chamber 5 of oil hydraulic cylinder left side flows back to hydraulic oil tank 28 through the throttle valve 21 in left side hydraulic oil pipe 1, selector valve 23, and meanwhile, the liquid in ascending tube 16 is responsible for 15 by high voltage power and is back to oil hydraulic cylinder left side outer chamber 3.So far, complete a power-converting process of the utility model hydraulic power conversion control device, this process moves in circles and just down-hole liquid constantly can be drawn in production fluid gathering-device 11.

Claims (3)

1. a hydraulic power conversion control device, it comprises power system, hydraulic reversing system, oil hydraulic cylinder pipe-line system and production fluid discharge system, it is characterized in that: oil hydraulic cylinder pipe-line system comprises oil hydraulic cylinder left side outer chamber (3), hydraulic cylinder piston (4), oil hydraulic cylinder left side inner cavity chamber (5), oil hydraulic cylinder right side inner cavity chamber (6) and oil hydraulic cylinder right side outer chamber (7); Production fluid discharge system comprises oil hydraulic cylinder power output pipe, hydraulic control valve pilot line and drain line; In drain line, be provided with hydraulic control valve (13); Hydraulic control valve pilot line comprises hydraulic control valve unlatching control valve (9) and hydraulic control valve closing control pipe (10); Hydraulic control valve is opened control valve (9) one end and is connected with oil hydraulic cylinder left side inner cavity chamber (5), and the other end is connected with hydraulic control valve (13) opening state port; Hydraulic control valve closing control pipe (10) one end is connected with oil hydraulic cylinder right side inner cavity chamber (6), and the other end is connected with hydraulic control valve (13) closed condition port.
2. hydraulic power conversion control device as claimed in claim 1, is characterized in that: described power system comprises hydraulic oil tank (28), relief valve (27), hydraulic oil filter (26), motor (25) and gear pump (24).
3. hydraulic power conversion control device as claimed in claim 1, is characterized in that: described hydraulic reversing system comprises selector valve (23), one-way valve (22), throttle valve (21).
CN201420006343.4U 2014-01-06 2014-01-06 Hydraulic power conversion control device Active CN203641181U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420006343.4U CN203641181U (en) 2014-01-06 2014-01-06 Hydraulic power conversion control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420006343.4U CN203641181U (en) 2014-01-06 2014-01-06 Hydraulic power conversion control device

Publications (1)

Publication Number Publication Date
CN203641181U true CN203641181U (en) 2014-06-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420006343.4U Active CN203641181U (en) 2014-01-06 2014-01-06 Hydraulic power conversion control device

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CN (1) CN203641181U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154060A (en) * 2014-08-08 2014-11-19 山西潞安环保能源开发股份有限公司常村煤矿 Hydraulic medium conversion device of downhole sling cart
CN111379542A (en) * 2018-12-29 2020-07-07 中国石油天然气股份有限公司 Automatic liquid supplementing rodless liquid-drive oil production device and oil production method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154060A (en) * 2014-08-08 2014-11-19 山西潞安环保能源开发股份有限公司常村煤矿 Hydraulic medium conversion device of downhole sling cart
CN111379542A (en) * 2018-12-29 2020-07-07 中国石油天然气股份有限公司 Automatic liquid supplementing rodless liquid-drive oil production device and oil production method
CN111379542B (en) * 2018-12-29 2022-05-10 中国石油天然气股份有限公司 Automatic liquid supplementing rodless liquid-drive oil production device and oil production method

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