CN104100505B - Hydraulic drive plunger oil-well pump - Google Patents

Hydraulic drive plunger oil-well pump Download PDF

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CN104100505B
CN104100505B CN201310152615.1A CN201310152615A CN104100505B CN 104100505 B CN104100505 B CN 104100505B CN 201310152615 A CN201310152615 A CN 201310152615A CN 104100505 B CN104100505 B CN 104100505B
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valve
slide bar
hollow
pump
plunger
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CN104100505A (en
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崔廼林
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Rizhao Jinhui Technology Information Consulting Co.,Ltd.
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崔廼林
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Abstract

The present invention relates to a kind of hydraulic drive plunger oil-well pump, it can drive with ground power fluid, can also drive by downhole hydraulic pump, control reciprocating reversing arrangement and include valve seat, hollow valve body, valve seat, valve ball, tapping pin and slide bar, one end of slide bar is contained in hollow valve body, circular passage is formed between slide bar and valve body inner bore, the initial actuating of reversing arrangement is provided by slide bar, then it is pushed into commutation position by hydraulic coupling, close and open fluid course, plunger is made to convert the direction of motion, owing to reversing arrangement have employed the combinative structure of cone valve and ball valve, steadily can commutate under low jig frequency running status, make movement parts abrasion little, the working life several times of pump increase, owing to valve seat and valve body are linear sealings, work does not leaks.

Description

Hydraulic drive plunger oil-well pump
Art:
The present invention relates to hydraulic drive plunger oil-well pump, particularly relate to a kind of control reciprocating reversing arrangement of hydraulic drive plunger oil-well pump.
Background technology:
Hydraulic piston pump is to inject high voltage power liquid by ground face-pumping to down-hole pump to control power end piston up-down by hydraulic efficiency slide valve, thus drives oil pump piston to move reciprocatingly, and down-hole liquid is lifted to ground.Owing to it uses hydraulic pressure integral drive, belong to rodless pump series, be best suitable for the exploitation of inclined shaft and horizontal well, it not only efficiency high, lift is big, is also with high temperature power fluid and keeps temperature in wellbore to solve viscous crude, high solidifying oil flow field problem.But the reciprocating reversing using Valve with sliding bush to control piston due to hydraulic piston pump causes hydraulic piston pump to suffer from the drawback that and not enough: one, requiring that power fluid has good lubricity, sliding sleeve reversal valve cannot realize low jig frequency commutation (specified jig frequency is 58 beats/min) needs power fluid greasy property good to reduce the rate of wear of movement parts.Two, requiring that power fluid has good cleannes, the fit clearance of sliding sleeve reversal valve is the most accurate, and in order to anti-anti-skid sheath is stuck, power fluid must carry out fine filtering.Three, requiring that power fluid has suitable viscosity, use water as power fluid not only movement parts quick abrasion if Valve with sliding bush is matched in clearance, the leakage of Valve with sliding bush also can be the most serious.The hydraulic piston pump that last century, domestic each oil field used is all to cook power fluid with crude oil, namely Produced Liquid is used as power fluid after dehydration, fine filtering, heating, owing to the workload of floor treatment power fluid is the biggest, production cost is the highest, to the last century end whole nation the most not with hydraulic piston pump as the oil well (referring to " oil drilling technology " volume 33 fifth phase, " the domestic hydraulic piston pump applied analysis " that in JIUYUE, 2011 is published) of artificial lift.
Summary of the invention:
The present invention provides a kind of this pump of hydraulic drive plunger oil-well pump with reversing arrangement can realize steadily commutation under the movement velocity less than 5 beats/min, to reach improve the reliability of pump and increase the purpose of working life.
It is a further object of the present invention to provide a kind of hydraulic drive plunger oil-well pump with reversing arrangement, this pump can use same well Produced Liquid or water as power fluid to reduce the operating cost of system.
It is a further object of the present invention to provide a kind of hydraulic drive plunger oil-well pump with reversing arrangement, this pump is possible not only to drive with ground power fluid, and the hydraulic oil that the hydraulic pump that it can also be driven by down-hole submersible electric machine with oil provides drives.
The reversing arrangement of the hydraulic drive plunger oil-well pump that the present invention provides is the sliding sleeve reversal valve of existing hydraulic piston pump to make the cone valve structure with ball valve combination to realize the purpose of the present invention into.nullThis hydraulic drive plunger oil-well pump includes the first pump barrel 70、Second pump barrel 71 is connected on valve housing 84 the most with one heart,First suction valve 82 is installed on the valve housing 84 between two pump barrels、Second sucks valve 83,First discharges valve 80 and second discharges valve 81,First pump barrel 70 is built with the first plunger 72a,Second pump barrel 71 is built with the second plunger 72b,First plunger 72a and the second plunger 72b is connected with one heart by open tubular column stopper rod 72c,Open tubular column stopper rod 72c is that movable sealing coordinates with valve housing 84 inner cylinder face,Hollow slide bar 33 passes from the center of open tubular column stopper rod 72c,Movable sealing (not showing in figure) is had between outer surface and the inner surface of open tubular column stopper rod 72c of hollow slide bar 33,First plunger 72a and the second plunger 72b sucks valve reciprocating the promoting of the first pump barrel 70 and the second pump barrel 71 inter-sync and discharges valve alternately opening and closing,Alternately well liquid inspiration and discharge above pump chamber 73 and lower pump chamber 74 are delivered to ground through oil pipe 90 internal channel 91.nullThe reversing arrangement controlling piston reciprocation motion is installed in the upper end of the first pump barrel 70,This reversing arrangement includes valve seat 10、Hollow valve body 20、Slide bar 30、Sliding sleeve 50 and support set 51,Equipped with the first sealing ring 13a and the second sealing ring 13b on valve seat 10,Equipped with the 3rd sealing ring 13c on sliding sleeve 50,Equipped with the 4th sealing ring 13d on support set 51,Valve seat 10,Sliding sleeve 50 and support set 51 are fixedly mounted in the second housing 61 of reversing arrangement,Reversing arrangement the second housing 61 connects and has the first housing 60,First housing 60 inner chamber is equipped with the piston 19a of band tapping pin 19b、The second valve seat 15 equipped with the 6th sealing ring 13f、It is provided with the ball stop collar 16 of inclined hole 16a,The first valve seat 14 and valve ball 19c equipped with the 5th sealing ring 13e,The first intercommunicating pore 12 it is provided with between two sealing rings of valve seat 10,First intercommunicating pore 12 connects with the first chamber runner 103,The two ends of the first chamber runner 103 connect respectively at the 9th intercommunicating pore 49 on the 5th intercommunicating pore 17b and the first pump barrel 70 of the first housing,Sliding sleeve 50 is provided with the second intercommunicating pore 47,Second intercommunicating pore 47 is connected with the 6th intercommunicating pore 18b on the first housing by lean liquor runner 102,Lean liquor runner 102 is the passing away of lean liquor,Support set 51 is provided with third connecting hole 43,Third connecting hole 43 is connected with the 7th intercommunicating pore 18a on the first housing by power fluid runner 101,First pump barrel upper end is additionally provided with eight connectivity hole 48,Eight connectivity hole 48 is connected with the 4th intercommunicating pore 17a on the first housing by the second chamber runner 104,The lower end of hollow valve body 20 is provided with first face of cylinder 23,First face of cylinder 23 is dynamic with the little internal diameter position of sliding sleeve 50 cooperatively forms movable sealing,Slide bar 30 is contained in hollow valve body 20,The second circular passage 42 is formed between hollow valve body 20 and slide bar 30,Between hollow valve body 20 and the interior latus rectum of valve seat 10, form circular passage 41 simultaneously,Slide bar 30 cooperatively forms movable sealing with the little internal diameter position of support set 51,Trigger block 31 and second equipped with first on slide bar 30 and trigger block 32,First triggers block was provided with chute 31a,The lower end of slide bar 30 offered stream circular hole 37 with the hollow fixing upper end being connected hollow slide bar 33 of slide bar 33,The first limit baffle ring 34 and the second limit baffle ring 35 it is also equipped with on hollow slide bar 33,Conduction chamber 45 is connected by the hollow passageway 36 of hollow slide bar 33 with the second power cavity 45a,The upper end of the first pump barrel 70 also fills the first division board 52,The interior latus rectum of the first division board 52 forms movable sealing with hollow slide bar 33 cylindrical and coordinates,Plunger runs to promote the limit baffle ring on hollow slide bar the triggering block on band moving slide-bar to promote hollow valve body to move during stroke end,Close and open fluid course to drive plunger to change the direction of motion,So that sucking valve, well liquid is lifted to ground by alternately opening and closing with discharging valve.
The hydraulic drive plunger oil-well pump of the present invention, owing to its reversing arrangement have employed the combinative structure of cone valve and ball valve, steadily can commutate under the running status that jig frequency is the lowest, owing to valve seat and valve body are linear sealings, work does not leaks, valve body will not be the cleanest and stuck because of power fluid simultaneously, this pump is made to be no longer necessary to greasy property good, high and that the there is proper viscosity power fluid of cleanliness factor, making movement parts abrasion little owing to considerably reducing the jig frequency of plunger than existing hydraulic piston pump, the working life several times of pump increase.
First preferred implementation is the hydraulic drive plunger oil-well pump that Surface power drive liquid drives.
Another preferred implementation is the hydraulic drive plunger oil-well pump that downhole hydraulic pump drives.
Below in conjunction with accompanying drawing, the preferred implementation that this use is novel is specifically described.
Accompanying drawing illustrates:
Fig. 1 is the structure sectional view of the hydraulic drive plunger oil-well pump reversing arrangement of the present invention.
Fig. 2 is to amplify valve seat and hollow valve body structure sectional view.
Fig. 3 A is the hydraulic drive plunger oil-well pump of the present invention structure sectional view when up stroke.
Fig. 3 B is the hydraulic drive plunger oil-well pump of the present invention structure sectional view when down stroke.
Fig. 4 is the structure sectional view of the hydraulic drive plunger oil-well pump that the present invention is driven by downhole hydraulic pump.
Detailed description of the invention:
nullThe hydraulic drive plunger oil-well pump that first embodiment narration drives with ground power fluid,Look first on Fig. 2 and Fig. 1,The upper and lower end face of valve seat 10 and form the first seal line 11a and the second seal line 11b in it between latus rectum,Hollow valve body 20 is provided with the first taper seat 21a and the second taper seat 21b,It is provided with the second face of cylinder 22a near the first taper seat 21a,It is provided with the 3rd face of cylinder 22b near the second taper seat 21b,Reversing arrangement also includes slide bar 30、Sliding sleeve 50 and support set 51,Equipped with the first sealing ring 13a and the second sealing ring 13b on valve seat 10,Equipped with the 3rd sealing ring 13c on sliding sleeve 50,Equipped with the 4th sealing ring 13d on support set 51,Valve seat 10、Sliding sleeve 50 and support set 51 are fixedly mounted in the second housing 61 of reversing arrangement,Reversing arrangement the second housing 61 connects and has the first housing 60,First housing 60 is built with the piston 19a of band tapping pin 19b,The second valve seat 15 equipped with the 6th sealing ring 13f,It is provided with the ball stop collar 16 of inclined hole 16a,Equipped with first valve seat 14 of the 5th sealing ring 13e and the valve ball 19c between two valve seats,The first intercommunicating pore 12 it is provided with between two sealing rings of valve seat 10,First intercommunicating pore 12 connects the two ends of the first chamber runner 103 and is connected with the 9th intercommunicating pore 49 on the 5th intercommunicating pore 17b of the first housing and the first pump barrel respectively with the first chamber runner 103,9th intercommunicating pore (49) connects with the first power cavity (49a),Sliding sleeve 50 is provided with the second intercommunicating pore 47,Second intercommunicating pore 47 is connected with the 6th intercommunicating pore 18b on the first housing by lean liquor runner 102,Lean liquor runner 102 is the passing away of lean liquor,Support set 51 is provided with third connecting hole 43,Third connecting hole 43 is connected with the 7th intercommunicating pore 18a on the first housing by power fluid runner 101,First pump barrel upper end is additionally provided with eight connectivity hole 48,Eight connectivity hole 48 is connected with the 4th intercommunicating pore 17a on the first housing by the second chamber runner 104,The lower end of hollow valve body is provided with first face of cylinder 23,First face of cylinder 23 is dynamic with the little internal diameter position of sliding sleeve 50 cooperatively forms movable sealing,Slide bar 30 is contained in hollow valve body 20,The second circular passage 42 is formed between hollow valve body 20 and slide bar 30,Between hollow valve body 20 and the interior latus rectum of valve seat 10, form circular passage 41 simultaneously,Slide bar 30 cooperatively forms movable sealing with the little internal diameter position of support set 51,Trigger block 31 and second equipped with first on slide bar 30 and trigger block 32,First triggers block was provided with chute 31a,The lower end of slide bar 30 is fixing with hollow slide bar 33 to be connected,The upper end of hollow slide bar 33 offered stream circular hole 37,The first limit baffle ring 34 and the second limit baffle ring 35 it is also equipped with on hollow slide bar 33,Conduction chamber 45 is connected by the hollow passageway 36 of hollow slide bar 33 with the second power cavity 45a,The upper end of the first pump barrel 70 is also equipped with the first division board 52,The interior latus rectum of the first division board 52 forms movable sealing with hollow slide bar 33 cylindrical and coordinates,Plunger runs to promote the limit baffle ring on hollow slide bar the triggering block on band moving slide-bar to promote hollow valve body to move during stroke end,Close and open fluid course to drive plunger to change the direction of motion,So that sucking valve, well liquid is lifted to ground by alternately opening and closing with discharging valve.Referring now to Fig. 3 A, high voltage power liquid in first high-pressure chamber 40 enters the second high pressure chest 44b through the 7th intercommunicating pore 18a, power fluid runner 101, the 43, second circular passage 42, third connecting hole and flowing hole 31a, now hollow valve body 20 is in primary importance state, and the second high-pressure chamber 44b is closed with first annular runner 41.The power fluid of the second high-pressure chamber 44b can go without road, and valve piston lower chambers 44 is by the 5th intercommunicating pore 17b, first chamber runner 103, first intercommunicating pore 12, first annular passage 41 and the second intercommunicating pore 47 connect with lean liquor runner 102, lean liquor runner 102 is connected with valve piston epicoele 44a by the 6th intercommunicating pore 18b simultaneously, suffered by the upper and lower two ends of i.e. valve piston 19a is all lean liquor pressure, now the duct of the second valve seat 15 is closed under the effect of high voltage power hydraulic coupling by valve ball 19c, high-pressure fluid is via inclined hole 16a, 4th intercommunicating pore 17a, second chamber runner 104, eight connectivity hole 48, cross stream circular hole 37, hollow passageway 36 enters the second power cavity 45a, promote the second plunger 72b up.Lean liquor in first power cavity 49a returns lean liquor runner 102 via the 9th intercommunicating pore the 49, first chamber runner the 103, first intercommunicating pore 12, first annular passage the 41, second intercommunicating pore 47, now the second discharge valve 81 is opened, first sucks valve 82 opens, well liquid in lower pump chamber 74 enters oil pipe 90 by the second discharge valve 81 and is lifted to surface line, and well liquid is inhaled into pump chamber 73 by the first suction valve 82 simultaneously.nullReferring now to Fig. 3 B when plunger 72a goes upward to top dead-centre and promotes the first limit baffle ring 34 to promote slide bar 30 up and shifts hollow valve body 20 onto second position state by the second triggering block 32,Now the power fluid in the second high-pressure chamber 44b is via first annular passage 41、First intercommunicating pore 12、First chamber runner 103、5th intercommunicating pore 17b enters valve piston cavity of resorption 44,And now valve piston epicoele 44a is lean liquor pressure,Aperture sectional area due to the second valve seat 15 is less than the sectional area of piston 19a again,Valve piston 19a drives tapping pin 19b thereon that valve ball 19c is pushed into the first valve seat 14,And it is the most setting,Now high voltage power liquid is through the first chamber runner 103、9th intercommunicating pore 49 enters the first power cavity 49a and promotes plunger descending,Lean liquor in second power cavity 45a is then by hollow flow passage 36、Cross stream circular hole 37、Eight connectivity hole 48、Second chamber runner 104、4th intercommunicating pore 17a、Inclined hole 16a、6th intercommunicating pore 18b returns lean liquor runner 102,Now the first suction valve 83 is opened,Well liquid in upper pump chamber 73 is lifted to ground by the first discharge valve 80 and oil pipe 90,Meanwhile,Well liquid is sucked into lower pump chamber 74 by the second suction valve 83,When piston operation promotes the second limit baffle ring 35 to bottom dead centre,Promote slide bar 30 descending and shift hollow valve body 20 onto primary importance state by the first triggering block 31,Repeat aforementioned operation process,So that plunger moves back and forth in pump barrel,Complete suction and the lifting of well liquid.
nullSecond embodiment of the present invention is the hydraulic drive plunger oil-well pump that the power fluid provided by downhole hydraulic pump drives,See that Fig. 4 is provided with the reversing arrangement controlling piston reciprocation motion in the lower end of the first pump barrel 70,This reversing arrangement includes valve seat 10、Hollow valve body 20、Slide bar 30、Sliding sleeve 50 and support set 51,Equipped with the first sealing ring 13a and the second sealing ring 13b on valve seat 10,Equipped with the 3rd sealing ring 13c on sliding sleeve 50,Equipped with the 4th sealing ring 13d on support set 51,Valve seat 10,Sliding sleeve 50 and support set 51 are fixedly mounted in the second housing 61 of reversing arrangement,Connect in the bottom of the second housing 61 and have the first housing 60,First housing 60 is built with the valve piston 19a of band tapping pin 19b,The second valve seat 15 equipped with the 6th sealing ring 13f,The first valve seat 14 equipped with the 5th sealing ring 13e,It is provided with the ball stop collar 16 of inclined hole 16a and the valve ball 19c between two valve seats,The first intercommunicating pore 12 it is provided with between two sealing rings of valve seat 10,First intercommunicating pore 12 connects with the first chamber runner 103,The two ends of the first chamber runner 103 are connected with the 5th intercommunicating pore 17b on the first housing 60 and the eight connectivity hole 48 on the first pump barrel 70 respectively,Sliding sleeve 50 is provided with the second intercommunicating pore 47,Second intercommunicating pore 47 is connected with the 6th intercommunicating pore 18b on the first housing 60 by lean liquor runner 102,Support set 51 is provided with third connecting hole 43,Third connecting hole 43 is connected with the 7th intercommunicating pore 18a on the first housing 60 by power fluid runner 101,First pump barrel 70 lower end is additionally provided with the 9th intercommunicating pore 49,9th intercommunicating pore (49) connects with the first power cavity (49a),And the 9th intercommunicating pore 49 is connected with the 4th intercommunicating pore 17a on the first housing 60 by the second chamber runner 104,The lower end of hollow valve body 20 is provided with first face of cylinder 23,First face of cylinder 23 coordinates with the little internal diameter position movable sealing of sliding sleeve 50,Slide bar 30 is contained in hollow valve body 20,The second circular passage 42 is formed between hollow valve body 20 and slide bar 30,Between hollow valve body 20 and the interior latus rectum of valve seat 10, form first annular passage 41 simultaneously,The little internal diameter position of slide bar 30 and the second division board 52a cooperatively forms movable sealing,Trigger block 31 and second equipped with first on slide bar 30 and trigger block 32,First triggers block 31 was provided with chute 31a,The upper end of slide bar 30 is fixing with hollow slide bar 33 to be connected,The lower end of hollow slide bar 33 offered stream circular hole 37,The first limit baffle ring 34 and the second limit baffle ring 35 is also had on hollow slide bar 33,Conduction chamber 45 is connected by the hollow passageway 36 of hollow slide bar 33 with the second power cavity 45a.The lower end of the first pump barrel 70 is also equipped with the first division board 52, and the interior latus rectum of the first division board 52 forms movable sealing with hollow slide bar 33 cylindrical and coordinates, and the first high-pressure chamber 40 connects underground hydraulic pressure pump discharge, 102 times termination downhole hydraulic pump entrances of lean liquor runner.Plunger promotes the limit baffle ring on hollow slide bar the triggering block on band moving slide-bar to promote hollow valve body to move when running to stroke end, close and open fluid course, to drive plunger to change the direction of motion, so that suction valve and discharge valve alternately open and close and well liquid is lifted to ground.
This pump cannot be only used for the downhole pump of oil mining, also can be driven as fluid delivery pump by ground hydraulic pump.
Described above is only embodiments of the present invention.Should be understood that under the premise without departing from the principles of the invention, it is also possible to make some conversion and improvement, these also should be regarded as belonging to protection scope of the present invention.

Claims (5)

  1. null1. the hydraulic drive plunger oil-well pump driven with ground power fluid,It includes the first pump barrel (70)、Second pump barrel (71)、First plunger (72a)、Second plunger (72b)、Two plungers are connected by open tubular column stopper rod (72c) with one heart,It also includes sucking valve and discharging valve,First plunger (72a) and the second plunger (72b) suck valve reciprocating the promoting of the first pump barrel (70) and the second pump barrel (71) inter-sync and discharge valve alternately opening and closing,By well liquid inspiration and discharge pump chamber,It is characterized in that: the first pump barrel (70)、Second pump barrel (71) is connected on valve housing (84) the most with one heart,First suction valve (82) is installed on the valve housing (84) between two pump barrels、Second sucks valve (83),First discharges valve (80) and second discharges valve (81),First pump barrel (70) is built with the first plunger (72a),Second pump barrel (71) is built with the second plunger (72b),First plunger (72a) and the second plunger (72b) are connected with one heart by open tubular column stopper rod (72c),Open tubular column stopper rod (72c) is that movable sealing coordinates with valve housing (84) inner cylinder face,Hollow slide bar (33) passes from the center of open tubular column stopper rod (72c),Movable sealing is had between outer surface and the inner surface of open tubular column stopper rod (72c) of hollow slide bar (33),The reversing arrangement controlling piston reciprocation motion is installed in the upper end of the first pump barrel (70),This reversing arrangement includes valve seat (10)、Hollow valve body (20)、Slide bar (30)、Sliding sleeve (50) and support set (51),Equipped with the first sealing ring (13a) and the second sealing ring (13b) on valve seat (10),Equipped with the 3rd sealing ring (13c) on sliding sleeve (50),Equipped with the 4th sealing ring (13d) on support set (51),Valve seat (10)、Sliding sleeve (50) and support set (51) are fixedly mounted in second housing (61) of reversing arrangement,The first housing (60) is had in the upper connection of reversing arrangement the second housing (61),First housing (60) is built with the piston (19a) of band tapping pin (19b)、The second valve seat (15) equipped with the 6th sealing ring (13f),It is provided with the ball stop collar (16) of inclined hole (16a),Equipped with first valve seat (14) of the 5th sealing ring (13e) and the valve ball (19c) between two valve seats,The first intercommunicating pore (12) it is provided with between two sealing rings of valve seat (10),First intercommunicating pore (12) connects with the first chamber runner (103),The two ends of the first chamber runner (103) are connected with the 9th intercommunicating pore (49) on the 5th intercommunicating pore (17b) of the first housing and the first pump barrel (70) respectively,9th intercommunicating pore (49) connects with the first power cavity (49a),Sliding sleeve (50) is provided with the second intercommunicating pore (47),Second intercommunicating pore (47) is connected with the 6th intercommunicating pore (18b) on the first housing by lean liquor runner (102),Support set (51) is provided with third connecting hole (43),Third connecting hole (43) is connected with the 7th intercommunicating pore (18a) on the first housing (60) by power fluid runner (101),First pump barrel (70) upper end is additionally provided with eight connectivity hole (48),Eight connectivity hole (48) is connected with the 4th intercommunicating pore (17a) on the first housing (60) by the second chamber runner (104),The lower end of hollow valve body (20) is provided with first face of cylinder (23),First face of cylinder (23) is dynamic with the little internal diameter position of sliding sleeve (50) to be coordinated,Slide bar (30) is contained in hollow valve body (20),The second circular passage (42) is formed between hollow valve body (20) and slide bar (30),First annular passage (41) is formed between the interior latus rectum of hollow valve body (20) and valve seat (10),Slide bar (30) is dynamic with the little internal diameter position of support set (51) to be coordinated,Trigger block (31) and second equipped with first on slide bar (30) and trigger block (32),First triggers block (31) was provided with chute (31a),The lower end of slide bar (30) is fixing with hollow slide bar (33) to be connected,The upper end of hollow slide bar (33) offered stream circular hole (37),The first limit baffle ring (34) and the second limit baffle ring (35) it is also equipped with on hollow slide bar (33),Conduction chamber (45) is connected by the hollow passageway (36) of hollow slide bar (33) with the second power cavity (45a),The upper end of the first pump barrel (70) is also equipped with the first division board (52),The interior latus rectum of the first division board (52) forms movable sealing with hollow slide bar (33) cylindrical and coordinates,Plunger runs to promote the limit baffle ring on hollow slide bar the triggering block on band moving slide-bar to promote hollow valve body to move during stroke end,Close and open fluid course to drive plunger to change the direction of motion,So that sucking valve and discharging valve alternately opening and closing.
  2. 2. hydraulic drive plunger oil-well pump as claimed in claim 1, it is characterized in that: hollow valve body (20) is provided with the first taper seat (21a) and the second taper seat (21b), it is provided with second face of cylinder (22a) near the first taper seat (21a), is provided with the 3rd face of cylinder (22b) near the second taper seat (21b).
  3. 3. hydraulic drive plunger oil-well pump as claimed in claim 1, it is characterized in that: the upper and lower end face of valve seat (10) and form the first seal line (11a) and the second seal line (11b) in it between latus rectum, first taper seat (21a) of the most corresponding hollow valve body (20) and the second taper seat (21b).
  4. 4. hydraulic drive plunger oil-well pump as claimed in claim 1, it is characterised in that: this pump can be driven as fluid delivery pump by ground hydraulic pump.
  5. null5. the hydraulic drive plunger oil-well pump that the power fluid provided by downhole hydraulic pump drives,It includes the first pump barrel (70)、Second pump barrel (71)、First plunger (72a)、Second plunger (72b)、Two plungers are connected by open tubular column stopper rod (72c) with one heart,It also includes sucking valve and discharging valve,First plunger (72a) and the second plunger (72b) are reciprocating at the first pump barrel (70) and the second pump barrel (71) inter-sync,Promote to suck valve and discharge valve alternately to open and close,By well liquid inspiration and discharge pump chamber,It is characterized in that: the first pump barrel (70)、Second pump barrel (71) is connected on valve housing (84) the most with one heart,First suction valve (82) is installed on the valve housing (84) between two pump barrels、Second sucks valve (83),First discharges valve (80) and second discharges valve (81),First pump barrel (70) is built with the first plunger (72a),Second pump barrel (71) is built with the second plunger (72b),First plunger (72a) and the second plunger (72b) are connected with one heart by open tubular column stopper rod (72c),Open tubular column stopper rod (72c) is that movable sealing coordinates with valve housing (84) inner cylinder face,Hollow slide bar (33) passes from the center of open tubular column stopper rod (72c),Movable sealing is had between outer surface and the inner surface of open tubular column stopper rod (72c) of hollow slide bar (33),The lower end of the first pump barrel (70) is provided with the reversing arrangement controlling piston reciprocation motion,This reversing arrangement includes valve seat (10)、Hollow valve body (20)、Slide bar (30)、Sliding sleeve (50) and support set (51),Equipped with the first sealing ring (13a) and the second sealing ring (13b) on valve seat (10),Equipped with the 3rd sealing ring (13c) on sliding sleeve (50),Equipped with the 4th sealing ring (13d) on support set (51),Valve seat (10)、Sliding sleeve (50) and support set (51) are fixedly mounted in second housing (61) of reversing arrangement,Connect in the bottom of the second housing (61) and have the first housing (60),First housing (60) inner chamber is equipped with the valve piston (19a) of band tapping pin (19b),The second valve seat (15) equipped with the 6th sealing ring (13f),The first valve seat (14) equipped with the 5th sealing ring (13e),It is provided with the ball stop collar (16) of inclined hole (16a) and the valve ball (19c) between two valve seats,The first intercommunicating pore (12) it is provided with between two sealing rings of valve seat (10),First intercommunicating pore (12) connects with the first chamber runner (103),The two ends of the first chamber runner (103) are connected with the 5th intercommunicating pore (17b) on the first housing (60) and the eight connectivity hole (48) on the first pump barrel (70) respectively,Sliding sleeve (50) is provided with the second intercommunicating pore (47),Second intercommunicating pore (47) is connected with the 6th intercommunicating pore (18b) on the first housing (60) by lean liquor runner (102),Support set (51) is provided with third connecting hole (43),Third connecting hole (43) is connected with the 7th intercommunicating pore (18a) on the first housing (60) by power fluid runner (101),First pump barrel (70) lower end is additionally provided with the 9th intercommunicating pore (49),9th intercommunicating pore (49) connects with the first power cavity (49a),And the 9th intercommunicating pore (49) is connected with the 4th intercommunicating pore (17a) on the first housing (60) by the second chamber runner (104),The lower end of hollow valve body (20) is provided with first face of cylinder (23),First face of cylinder (23) coordinates with the little internal diameter position movable sealing of sliding sleeve (50),Slide bar (30) is contained in hollow valve body (20),The second circular passage (42) is formed between hollow valve body (20) and slide bar (30),First annular passage (41) is formed between the interior latus rectum of hollow valve body (20) and valve seat (10),Slide bar (30) is dynamic with the little internal diameter position of the second division board (52a) to be coordinated,Trigger block (31) and second equipped with first on slide bar (30) and trigger block (32),First triggers block (31) was provided with chute (31a),The upper end of slide bar (30) is fixing with hollow slide bar (33) to be connected,The lower end of hollow slide bar (33) offered stream circular hole (37),Hollow slide bar (33) is upper also has the first limit baffle ring (34) and the second limit baffle ring (35),Conduction chamber (45) is connected by the hollow passageway (36) of hollow slide bar (33) with the second power cavity (45a),The lower end of the first pump barrel (70) is also equipped with the first division board (52),The interior latus rectum of the first division board (52) forms movable sealing with hollow slide bar (33) cylindrical and coordinates,First high-pressure chamber (40) connects underground hydraulic pressure pump discharge,Downhole hydraulic pump entrance is terminated under lean liquor runner (102),Plunger promotes the limit baffle ring on hollow slide bar the triggering block on band moving slide-bar to promote hollow valve body to move when running to stroke end,Close and open fluid course,To drive plunger to change the direction of motion,So that sucking valve and discharging valve alternately opening and closing.
CN201310152615.1A 2013-04-14 2013-04-14 Hydraulic drive plunger oil-well pump Active CN104100505B (en)

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Publication number Priority date Publication date Assignee Title
US4591320A (en) * 1984-01-31 1986-05-27 Pope Kenneth E Submersible pumping unit
CN2436683Y (en) * 2000-07-25 2001-06-27 中油辽河油田公司采油工艺研究院 Hydraulic rod pump petroleum production means
CN101054968A (en) * 2007-05-30 2007-10-17 李洪敏 Hydraulic oil pump
CN101781979A (en) * 2009-01-19 2010-07-21 莫比森(北京)石油天然气技术开发有限公司 Hydraulic driving oil extraction equipment
CN203175816U (en) * 2013-04-14 2013-09-04 崔廼林 Hydraulic-drive plunger oil well pump

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US8021129B2 (en) * 2006-05-31 2011-09-20 Smith Lift, Inc. Hydraulically actuated submersible pump

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Publication number Priority date Publication date Assignee Title
US4591320A (en) * 1984-01-31 1986-05-27 Pope Kenneth E Submersible pumping unit
CN2436683Y (en) * 2000-07-25 2001-06-27 中油辽河油田公司采油工艺研究院 Hydraulic rod pump petroleum production means
CN101054968A (en) * 2007-05-30 2007-10-17 李洪敏 Hydraulic oil pump
CN101781979A (en) * 2009-01-19 2010-07-21 莫比森(北京)石油天然气技术开发有限公司 Hydraulic driving oil extraction equipment
CN203175816U (en) * 2013-04-14 2013-09-04 崔廼林 Hydraulic-drive plunger oil well pump

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