CN106989000A - Double barrier film latent oil Diaphragm pump systems and its relay lifting method - Google Patents
Double barrier film latent oil Diaphragm pump systems and its relay lifting method Download PDFInfo
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- CN106989000A CN106989000A CN201710393916.1A CN201710393916A CN106989000A CN 106989000 A CN106989000 A CN 106989000A CN 201710393916 A CN201710393916 A CN 201710393916A CN 106989000 A CN106989000 A CN 106989000A
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- membrane pump
- airtight cavity
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- 230000004888 barrier function Effects 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 136
- 239000007788 liquid Substances 0.000 claims abstract description 99
- 238000012856 packing Methods 0.000 claims abstract description 29
- 230000033001 locomotion Effects 0.000 claims description 33
- 210000002445 nipple Anatomy 0.000 claims description 27
- 239000003129 oil well Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 85
- 230000000694 effects Effects 0.000 description 5
- 244000309464 bull Species 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/128—Adaptation of pump systems with down-hole electric drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of pair of barrier film latent oil Diaphragm pump system, including share the higher level's membrane pump and subordinate's membrane pump of same submersible electric machine with oil；Submersible electric machine with oil drives higher level's piston and subordinate's piston to move back and forth in the same direction, higher level's barrier film and subordinate's barrier film is moved up and down, so as to produce malleation or negative pressure in higher level's airtight cavity and subordinate's airtight cavity；Acted on by the switching of positive/negative-pressure in airtight cavity, the well liquid below Wel packing is drawn into subordinate's airtight cavity, is then discharged out in the oil jacket annular space to above Wel packing by subordinate's membrane pump；Well liquid in oil jacket annular space is drawn into higher level's airtight cavity by higher level's membrane pump, is then discharged out into production tube, so that well liquid is lifted into ground by production tube.The present invention can increase substantially its lift parameter, and further improve its whole efficiency, so that latent oil membrane pump can be applied to stripper well.The invention also discloses the relay lifting method of a kind of pair of barrier film latent oil Diaphragm pump system.
Description
Technical field
The present invention relates to a kind of oil field equipment, and in particular to a kind of pair of barrier film latent oil Diaphragm pump system.The present invention is also
It is related to the relay lifting method of a kind of pair of barrier film latent oil Diaphragm pump system.
Background technology
With deeply developing for domestic and international each oil field, a large amount of oil wells initially enter the low yield stage, contour using submersible electric pump
Produce the actual conditions of the unsuitable this kind of oil well of oil production equipment.Meanwhile, the attention with country to energy-saving and emission-reduction, oil production equipment
Efficiency be also increasingly taken seriously.
Latent oil membrane pump is a kind of low yield, efficient petroleum lifting equipment, under the conditions of same displacement and lift its
Energy consumption is only the half of oil pumper, therefore, and the exploitation of stripper well is carried out using latent oil membrane pump, is had for energy-saving and emission-reduction non-
Normal obvious effect.
But, because the discharge capacity of latent oil membrane pump is inversely proportional substantially with lift, lift declines therewith while discharge capacity is raised,
Therefore, existing latent oil membrane pump haves the shortcomings that lift is relatively low, and the lift of the latent oil membrane pump of maximum pump discharge only has 600 meters.
This latent oil membrane pump is limited by lift parameter, it is impossible to meet the application requirement of most of oil wells.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of pair of barrier film latent oil Diaphragm pump system, and it can ensure row
On the premise of amount is constant, its lift is increased substantially.
In order to solve the above technical problems, the technical solution of the double barrier film latent oil Diaphragm pump systems of the present invention is：
Including higher level's membrane pump 1 and subordinate's membrane pump 2；Higher level's membrane pump 1 and subordinate's membrane pump 2 share same latent oil electricity
Machine；Higher level's membrane pump 1 is provided with higher level cylinder sleeve 10-1, higher level's cylinder sleeve 10-1 and is movably set with higher level's piston 16-1；Higher level's cylinder
Cover in 10-1 top formation higher level's airtight cavity, higher level's airtight cavity and be fixedly installed higher level's barrier film 9-1；Subordinate's membrane pump 2
It is provided with subordinate cylinder sleeve 10-2, subordinate cylinder sleeve 10-2 and is movably set with subordinate piston 16-2；It is square under subordinate cylinder sleeve 10-2
Into subordinate's airtight cavity, subordinate barrier film 9-2 is fixedly installed in subordinate's airtight cavity；Higher level's piston 16-1 is by moving interpreter
The upper end of the submersible electric machine with oil axle 21 of structure connection submersible electric machine with oil；Subordinate piston 16-2 connects latent oil electricity by another movement conversion mechanism
The lower end of the submersible electric machine with oil axle 21 of machine；The tilt motions of submersible electric machine with oil axle 21 can be converted into level by movement conversion mechanism
Rotary motion, and horizontal revolving motion is converted into pumped；The submersible electric machine with oil axle 21 of submersible electric machine with oil rotates, in drive
Level piston 16-1 and subordinate piston 16-2 is moved back and forth in the same direction, higher level's barrier film 9-1 and subordinate barrier film 9-2 is moved up and down, so that
Malleation or negative pressure are produced in higher level's airtight cavity and subordinate's airtight cavity；Acted on by the switching of positive/negative-pressure in airtight cavity,
The well liquid of the lower section of Wel packing 25 is drawn into subordinate's airtight cavity by subordinate's membrane pump 2, is then discharged out to Wel packing
In the oil jacket annular space of 25 tops；Well liquid in oil jacket annular space is drawn into higher level's airtight cavity by higher level's membrane pump 1, is then discharged out
Into production tube, so that well liquid is lifted into ground by production tube.
Higher level's cylinder sleeve 10-1 of higher level's membrane pump 1 is fixedly installed in top connection 7-1；Top connection 7-1 passes through top
Tubing nipple 4 is connected with production tube；Higher level's cylinder sleeve 10-1 and top connection 7-1 is split type or integral type.
The subordinate cylinder sleeve 10-2 of subordinate's membrane pump 2 is fixedly installed in lower contact 7-2, and lower contact 7-2 lower end connects
Connect fixed cover on bottom tubing nipple 24, bottom tubing nipple 24 and be provided with Wel packing 25；Wel packing 25 can be by oil
Well is divided into two sections to realize that relay is lifted, and the inner chamber of bottom tubing nipple 24 is connected with the underlying space of Wel packing 25
It is logical；The superjacent air space of Wel packing 25 is oil jacket annular space；Subordinate's cylinder sleeve 10-2 and lower contact 7-2 is split type or integral
Formula.
The top connection 7-1 of higher level's membrane pump 1 and the lower contact 7-2 of subordinate's membrane pump 2 are fixedly installed on membrane pump machine
In group housing 14.
The movement conversion mechanism includes crankshaft toothed wheel assembly 12, little gear 18, connecting rod 11, the connection latent oil electricity of little gear 18
Arbor 21, little gear 18 is meshed with the gear wheel of crankshaft toothed wheel assembly 12；The gear wheel of crankshaft toothed wheel assembly 12 and bent axle are inclined
The heart is connected；The bent axle connection connecting rod 11 of crankshaft toothed wheel assembly 12；Connecting rod 11 connects higher level's piston 16-1 or subordinate piston 16-2.
Higher level's airtight cavity offers well liquid suction inlet 6 and well liquid outlet 13, and higher level's airtight cavity passes through well liquid
Suction inlet 6 is connected with oil jacket annular space, and higher level's membrane pump feed liquor valve assembly 8 is used for the opening and closing for controlling well liquid suction inlet 6；Higher level is closed
Cavity is connected by well liquid outlet 13 with the inner chamber of production tube, and higher level's membrane pump liquid valve assembly 15 is used to control well liquid to arrange
The opening and closing of outlet 13.
Subordinate's airtight cavity offers well liquid suction inlet and well liquid outlet, and subordinate's airtight cavity is sucked by well liquid
Mouth is connected with the inner chamber of bottom tubing nipple 24, and subordinate's membrane pump feed liquor valve assembly 22 is used for the opening and closing for controlling well liquid suction inlet；
Subordinate's airtight cavity is connected by well liquid outlet with oil jacket annular space, and subordinate's membrane pump liquid valve assembly 23 is used to control well liquid to arrange
The opening and closing of outlet.
The submersible electric machine with oil includes submersible motor rotor 19, the connection submersible electric machine with oil of submersible motor rotor 19 axle 21；Latent oil electricity
Machine rotor 19 is arranged in Submersible Motor Stator 20.
The present invention also provides the relay lifting method of a kind of pair of barrier film latent oil Diaphragm pump system, and its technical solution is,
Comprise the following steps：
Electric energy is delivered to submersible electric machine with oil, submersible electric machine with oil driving submersible electric machine with oil by ground driving equipment by cable 5 from ground
Axle 21 rotates；Submersible electric machine with oil axle 21 drives higher level's piston 16-1 and subordinate piston 16-2 back and forth to transport in the same direction by movement conversion mechanism
It is dynamic, so that higher level's barrier film 9-1 and subordinate barrier film 9-2 moves up and down；
When subordinate barrier film 9-2 is moved upwards, make to produce negative pressure in subordinate's airtight cavity, this negative pressure forces subordinate's membrane pump
Feed liquor valve assembly 22 is opened, so as to be inhaled the well liquid of the lower section of Wel packing 25 from well liquid suction inlet by bottom tubing nipple 24
Enter into subordinate's airtight cavity；When subordinate barrier film 9-2 is moved downward, make to produce malleation in subordinate's airtight cavity, this positive compressing
Open subordinate's membrane pump liquid valve assembly 23, so that the well liquid in subordinate's airtight cavity is expelled into the top of Wel packing 25
Oil jacket annular space in；
When higher level's barrier film 9-1 is moved downward, make to produce negative pressure in higher level's airtight cavity, this negative pressure forces higher level's membrane pump
Feed liquor valve assembly 8 is opened, and the well liquid in oil jacket annular space is drawn into higher level's airtight cavity by well liquid suction inlet 6；Work as higher level
When barrier film 9-1 is moved upwards, make to produce malleation in higher level's airtight cavity, this malleation forces higher level's membrane pump liquid valve assembly 15 dozens
Open, so that the well liquid in higher level's airtight cavity is expelled in production tube by well liquid outlet 13 through top tubing nipple 4；
Above procedure circulation is carried out, you can well liquid is lifted into ground by production tube.
What the present invention can reach has the technical effect that：
The present invention can increase substantially its lift parameter, and further improve it on the premise of ensureing that discharge capacity is constant
Whole efficiency, so that latent oil membrane pump can be applied to low yield, high-lift oil well, increases substantially the adaptation of membrane pump
Property, meet the application demand of most of oil wells.
The present invention can will greatly improve lift, expand latent oil membrane pump product compared to single-stage latent oil membrane pump
Application.
The present invention can further improve operating efficiency and power savings compared to single-stage latent oil membrane pump.
Oil well can be divided into two sections to realize relay lifting function by the present invention by Wel packing.
Brief description of the drawings
It should be understood by those skilled in the art that following explanation is only the principle for schematically illustrating the present invention, the principle
It can apply in many ways, to realize many different alternative embodiments.These explanations are only used for showing the religion of the present invention
Lead the General Principle of content, it is not intended to which limitation is in the design of this disclosed invention.
The accompanying drawing for being incorporated in the present specification and constituting the part of this specification shows embodiments of the present invention, and
And be used to explain principle of the invention together with the detailed description of general description above and drawings below.
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：
Fig. 1 is the schematic diagram of double barrier film latent oil Diaphragm pump systems of the invention.
Description of reference numerals in figure：
1 is higher level's membrane pump, and 2 be subordinate's membrane pump,
3 be sleeve pipe, and 4 be top tubing nipple,
5 be cable, and 6 be well liquid suction inlet,
7-1 is top connection, and 8 be higher level's membrane pump feed liquor valve assembly,
9-1 is higher level's barrier film, and 10-1 is higher level's cylinder sleeve,
11 be connecting rod, and 12 be crankshaft toothed wheel assembly,
13 be well liquid outlet, and 14 be membrane pump machine unit shell,
15 be higher level's membrane pump liquid valve assembly, and 16-1 is higher level's piston,
17 be pin, and 18 be little gear,
19 be submersible motor rotor, and 20 be Submersible Motor Stator,
21 be submersible electric machine with oil axle, and 22 be subordinate's membrane pump feed liquor valve assembly,
23 be subordinate's membrane pump liquid valve assembly, and 24 be bottom tubing nipple,
25 be Wel packing,
7-2 is lower contact, and 9-2 is subordinate's barrier film,
10-2 is subordinate's cylinder sleeve, and 16-2 is subordinate's piston.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme to the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of embodiment, rather than whole embodiments.Based on described embodiments of the invention, ordinary skill
The every other embodiment that personnel are obtained on the premise of without creative work, belongs to the scope of protection of the invention.Remove
Non- other definition, technical term or scientific terminology used herein are should be in art of the present invention with general technical ability
The ordinary meaning that personage is understood.The element or object that the similar words such as " comprising " herein mean to occur before the word are contained
Lid appears in the element or object of the word presented hereinafter and its is equal, and is not excluded for other elements or object." connection " or
The similar words such as person's " connected " are not limited to physics or machinery connection, but can include electrical connection, no
Pipe is direct or indirect." on ", " under " etc. is only used for representing relative position relation, when the absolute position for being described object
After change, then the relative position relation may also correspondingly change.
As shown in figure 1, the double barrier film latent oil Diaphragm pump systems of the present invention, including higher level's membrane pump 1 and subordinate's membrane pump 2；On
Level membrane pump 1 and subordinate's membrane pump 2 share same submersible electric machine with oil；
Higher level's membrane pump 1 includes top connection 7-1, top connection 7-1 upper end connection top tubing nipple 4；Top oil pipe is short
Section 4 is connected with production tube；
It is fixedly installed in top connection 7-1 in higher level cylinder sleeve 10-1, higher level's cylinder sleeve 10-1 and is movably set with higher level's piston 16-
1；Higher level's cylinder sleeve 10-1 and top connection 7-1 is two parts (i.e. split type), naturally it is also possible to be integral type；
Higher level's cylinder sleeve 10-1 top forms in higher level's airtight cavity, higher level's airtight cavity and is fixedly installed higher level's barrier film 9-
1；
Higher level's airtight cavity offers well liquid suction inlet 6 and well liquid outlet 13, and higher level's airtight cavity is sucked by well liquid
Mouth 6 is connected with oil jacket annular space, and higher level's membrane pump feed liquor valve assembly 8 is used for the opening and closing for controlling well liquid suction inlet 6；Higher level's airtight cavity
Connected by well liquid outlet 13 with the inner chamber of top tubing nipple 4, higher level's membrane pump liquid valve assembly 15 is used to control well liquid
The opening and closing of outlet 13；
Higher level's piston 16-1 lower end connects connecting rod 11 by pin 17；The song of the connection crankshaft toothed wheel of connecting rod 11 assembly 12
Axle；The gear wheel of crankshaft toothed wheel assembly 12 is meshed with little gear 18；Gear wheel can be rotated with the composition of little gear 18 by vertical
It is converted into the bevel gear pair horizontally rotated；The upper end of the connection submersible electric machine with oil of little gear 18 axle 21 of higher level's membrane pump 1；
Submersible electric machine with oil axle 21 is fixedly connected with submersible motor rotor 19, and submersible motor rotor 19 is arranged at Submersible Motor Stator 20
It is interior；Submersible motor rotor 19 and the composition submersible electric machine with oil of Submersible Motor Stator 20；Submersible electric machine with oil is realized by cable 5 and powered；
Subordinate's membrane pump 2 is identical with the structure of higher level's membrane pump 1, subordinate's membrane pump 2 and the back-to-back cloth of higher level's membrane pump 1
Put；Subordinate's membrane pump 2 includes lower contact 7-2, lower contact 7-2 lower end connection bottom tubing nipple 24, bottom tubing nipple 24
Upper fixed cover is provided with Wel packing 25；
It is fixedly installed in lower contact 7-2 in subordinate cylinder sleeve 10-2, subordinate cylinder sleeve 10-2 and is movably set with subordinate piston 16-
2；Subordinate barrier film 9-2 is fixedly installed in subordinate cylinder sleeve 10-2 subordinate's airtight cavity formed below, subordinate's airtight cavity；
Subordinate's airtight cavity offers well liquid suction inlet and well liquid outlet, subordinate's airtight cavity by well liquid suction inlet with
The inner chamber connection of bottom tubing nipple 24, subordinate's membrane pump feed liquor valve assembly 22 is used for the opening and closing for controlling well liquid suction inlet；Subordinate
Airtight cavity is connected by well liquid outlet with oil jacket annular space, and subordinate's membrane pump liquid valve assembly 23 is used to control well liquid outlet
Opening and closing；
Subordinate piston 16-2 upper end connects connecting rod 11 by pin 17；The song of the connection crankshaft toothed wheel of connecting rod 11 assembly 12
Axle；The gear wheel of crankshaft toothed wheel assembly 12 is meshed with little gear 18；Gear wheel can be rotated with the composition of little gear 18 by vertical
It is converted into the bevel gear pair horizontally rotated；The lower end of the connection submersible electric machine with oil of little gear 18 axle 21 of subordinate's membrane pump 2；
The submersible electric machine with oil axle 21 of submersible electric machine with oil can drive the little gear 18 and song of higher level's membrane pump 1 and subordinate's membrane pump 2
Tilt motions are converted into horizontal revolving motion by the bull gear drive of shaft gear assembly 12；Because bent axle with gear wheel is
Bias connection, gear wheel can pump during horizontal rotation with dynamic crankshaft, and bent axle drivening rod 11 is reciprocal
Motion, reciprocating motion is converted into so as to will horizontally rotate；Connecting rod 11 drives higher level's piston 16-1 and subordinate piston 16-2 with yearning
Multiple motion, makes higher level's barrier film 9-1 and subordinate barrier film 9-2 move up and down, so as to produce malleation or negative pressure in airtight cavity；By close
The well liquid of the lower section of Wel packing 25 is drawn into subordinate's closed chamber by the switching effect of positive/negative-pressure in closed chamber body, subordinate's membrane pump 2
In body, it is then discharged out into the oil jacket annular space of the top of Wel packing 25；Higher level's membrane pump 1 sucks the well liquid in oil jacket annular space
Into higher level's airtight cavity, it is then discharged out into production tube, so that well liquid is lifted into ground by production tube.
The top connection 7-1 of higher level's membrane pump 1 and the lower contact 7-2 of subordinate's membrane pump 2 are fixedly installed on barrier film pump assembly shell
In body 14.
The effect of the crankshaft toothed wheel assembly 12 of the present invention, which is tilt motions being converted into, to pump, this reality
Example is applied using eccentric crankshaft and bevel gear pair, naturally it is also possible to tilt motions can be converted into up and down reciprocatingly using other
The structure of motion, therefore not to repeat here.
The operation principle of the present invention is as follows：
In use, placing this invention into the sleeve pipe 3 of oil well, oil well is divided into two sections to be connect to realize by Wel packing 25
Power is lifted；The inner chamber of bottom tubing nipple 24 is connected with the underlying space of Wel packing 25；The top of Wel packing 25
Space is oil jacket annular space；
Electric energy is delivered to submersible electric machine with oil by ground driving equipment by cable 5 from ground, makes Submersible Motor Stator 20 with diving
Moment of torsion is produced between oily rotor 19, so as to drive submersible electric machine with oil axle 21 to rotate；Submersible electric machine with oil axle 21 drives higher level's membrane pump 1
Rotated with the little gear 18 of subordinate membrane pump 2；
The little gear 18 of subordinate's membrane pump 2 drives the bull gear drive of crankshaft toothed wheel assembly 12, will vertically be converted into
Horizontally rotate, the gear wheel of crankshaft toothed wheel assembly 12 pumps while rotating with dynamic crankshaft, bent axle drivening rod
11 are moved back and forth, and reciprocating motion is converted into so as to will horizontally rotate；Connecting rod 11 drives subordinate piston 16-2 reciprocal by pin 17
Motion；Power is passed to subordinate barrier film 9-2 by subordinate piston 16-2 during reciprocating motion by hydraulic oil, makes subordinate's barrier film
9-2 moves up and down；When subordinate barrier film 9-2 is moved upwards, make to produce negative pressure in subordinate's airtight cavity, this negative pressure force subordinate every
Membrane pump feed liquor valve assembly 22 opens (while closing subordinate's membrane pump liquid valve assembly 23), so as to pass through bottom tubing nipple 24
By the well liquid of the lower section of Wel packing 25 from well liquid suction inlet is drawn into subordinate's airtight cavity；When subordinate, barrier film 9-2 is transported downwards
When dynamic, make to produce malleation in subordinate's airtight cavity, this malleation forces subordinate's membrane pump liquid valve assembly 23 to be opened (while making subordinate
Membrane pump feed liquor valve assembly 22 is closed), so that the well liquid in subordinate's airtight cavity to be expelled to the oil of the top of Wel packing 25
The collar is aerial；
At the same time, the little gear 18 of higher level's membrane pump 1 drives the bull gear drive of crankshaft toothed wheel assembly 12, will vertically turn
Dynamic be converted into horizontally rotates, and the gear wheel of crankshaft toothed wheel assembly 12 pumps while rotating with dynamic crankshaft, bent axle
Drivening rod 11 is moved back and forth, and reciprocating motion is converted into so as to will horizontally rotate；Connecting rod 11 drives higher level's piston by pin 17
16-1 is moved back and forth；Power is passed to higher level barrier film 9-1 by higher level's piston 16-1 during reciprocating motion by hydraulic oil, is made
Higher level's barrier film 9-1 moves up and down；When higher level's barrier film 9-1 is moved downward, make to produce negative pressure in higher level's airtight cavity, this negative pressure is compeled
Higher level's membrane pump feed liquor valve assembly 8 is set to open (while closing higher level's membrane pump liquid valve assembly 15), by oil jacket annular space
Well liquid is drawn into higher level's airtight cavity by well liquid suction inlet 6；When higher level's barrier film 9-1 is moved upwards, make higher level's closed chamber
Malleation is produced in body, this malleation forces higher level's membrane pump liquid valve assembly 15 to be opened (while making higher level's membrane pump feed liquor valve assembly 8
Close), so that the well liquid in higher level's airtight cavity is expelled into production tube through top tubing nipple 4 by well liquid outlet 13
In；
Above procedure circulation is carried out, you can well liquid is lifted into ground by production tube.
The present invention realizes that relay is lifted by higher level's membrane pump 1 and subordinate's membrane pump 2, and subordinate's membrane pump 2 is by well liquid from oil
The lower section of well packer 25 is lifted to the top of Wel packing 25, and well liquid is lifted to ground by higher level's membrane pump 1 again.
Because membrane pump is reciprocating pump, for single-stage membrane pump, load imbalance of the submersible electric machine with oil in operation process is led
Submersible electric machine with oil delivery efficiency is caused than relatively low, so as to cause whole efficiency not high.Because, submersible electric machine with oil passes through the reciprocal of piston
Motion driving barrier film acting, only piston positive movement can just do work, and submersible electric machine with oil is in Light Condition during counter motion, also
It is to say that submersible electric machine with oil each rotation only has half cycle acting, half cycle is in Light Condition in addition, this working method will reduce latent oil
The operating efficiency (making power factor relatively low) of motor.
The present invention is using same submersible electric machine with oil driving higher level membrane pump 1 and subordinate's membrane pump 2, and higher level's membrane pump 1 is upper
The subordinate piston 16-2 of level piston 16-1 and subordinate's membrane pump 2 is moved in the same direction；Submersible electric machine with oil passes through higher level's piston 16-1 and subordinate
Piston 16-2 reciprocating motion driving higher level's barrier film 9-1 and subordinate barrier film 9-2 actings, when submersible electric machine with oil driving higher level membrane pump 1
Higher level's piston 16-1 it is up when do work, now the subordinate piston 16-2 of subordinate's membrane pump 2 is up does not do work (in unloaded shape
State)；Done work when submersible electric machine with oil drives the subordinate piston 16-2 of subordinate's membrane pump 2 descending, now the higher level of higher level's membrane pump 1 lives
Plug 16-1 is up not to do work and (is in Light Condition), i.e., driven higher level membrane pump 1 and subordinate's barrier film when submersible electric machine with oil works
Pump 2 does work, so that being in load condition all the time when submersible electric machine with oil work, effectively improves the output effect of submersible electric machine with oil
Rate, that is, improve total system operational efficiency and power savings, compared to two sets single-stage membrane pumps can effectively reduce cost with
Energy consumption.
Well liquid of the present invention in initial start stage, oil jacket annular space is fewer, and the well liquid in top tubing nipple 4 also compares
Few, now the lift of lifting needed for higher level's membrane pump 1 and subordinate's membrane pump 2 is all than relatively low, therefore the superior and the subordinate's membrane pump is at
Under huge discharge state and discharge capacity is of substantially equal (discharge capacity of latent oil membrane pump is inversely proportional substantially with lift)；With the unit working time
Passage, the well liquid in top tubing nipple 4 is more and more, the lift increase of lifting needed for higher level's membrane pump 1, higher level's membrane pump
1 discharge capacity declines therewith, and now the discharge capacity of higher level's membrane pump 1 is less than subordinate's membrane pump 2, causes subordinate's membrane pump 2 to be sealed from oil well
The well liquid of the oil jacket annular space of the top of Wel packing 25 is given rise to every the lower section of device 25 to be given rise to completely by higher level's membrane pump 1
In portion's tubing nipple 4, the well liquid in oil jacket annular space will be more and more in this case, required when subordinate's membrane pump 2 is worked
Lifting lift gradually increases, and the discharge capacity of subordinate's membrane pump 2 declines therewith；When the discharge capacity of subordinate's membrane pump 2 drop to higher level every
After membrane pump 1 is consistent, the superior and the subordinate's membrane pump working condition reaches balance, and the discharge capacity of the superior and the subordinate's membrane pump and lift keep phase afterwards
With in stable condition work, even if the factor of being interfered makes the running parameter of the superior and the subordinate's membrane pump produce partially in the unit course of work
Difference, due to the inherent characteristic of unit, the superior and the subordinate's membrane pump, which can also be automatically adjusted, reaches poised state.In summary, it is of the invention
Two membrane pumps can automatically adjust lift and discharge capacity in the course of the work and reach the state of balance, so as to realize adaptive work(
Energy.The present invention using latent oil membrane pump working characteristics, can make above and below two-stage membrane pump cooperate perfectly with work, without
Complicated control mode and equipment.
Although embodiments of the present invention are hereinbefore described in detail, show for those skilled in the art
And be clear to, various modifications and variations can be carried out to these embodiments.However, it is understood that this modifications and variations are all
Belong within the scope and spirit of the present invention described in claims.Moreover, the present invention described herein can have others
Embodiment, and can be practiced or carried out in several ways.
Claims (9)
1. a kind of pair of barrier film latent oil Diaphragm pump system, it is characterised in that：Including higher level's membrane pump (1) and subordinate's membrane pump (2)；On
Level membrane pump (1) and subordinate's membrane pump (2) share same submersible electric machine with oil；
Higher level's membrane pump (1) is provided with higher level's cylinder sleeve (10-1), higher level's cylinder sleeve (10-1) and is movably set with higher level's piston (16-
1)；The top of higher level's cylinder sleeve (10-1) forms in higher level's airtight cavity, higher level's airtight cavity and is fixedly installed higher level's barrier film (9-
1)；
Subordinate's membrane pump (2) is provided with subordinate's cylinder sleeve (10-2), subordinate's cylinder sleeve (10-2) and is movably set with subordinate piston (16-
2)；Subordinate barrier film (9- is fixedly installed in subordinate's airtight cavity formed below of subordinate's cylinder sleeve (10-2), subordinate's airtight cavity
2)；
Higher level's piston (16-1) connects the upper end of the submersible electric machine with oil axle (21) of submersible electric machine with oil by movement conversion mechanism；Subordinate's piston
(16-2) connects the lower end of the submersible electric machine with oil axle (21) of submersible electric machine with oil by another movement conversion mechanism；Movement conversion mechanism can
The tilt motions of submersible electric machine with oil axle (21) are converted into horizontal revolving motion, and horizontal revolving motion are converted into past up and down
Multiple motion；
Submersible electric machine with oil axle (21) rotation of submersible electric machine with oil, drives higher level's piston (16-1) and subordinate's piston (16-2) reciprocal fortune in the same direction
It is dynamic, higher level's barrier film (9-1) and subordinate's barrier film (9-2) is moved up and down, so that in higher level's airtight cavity and subordinate's airtight cavity
Produce malleation or negative pressure；Acted on by the switching of positive/negative-pressure in airtight cavity, subordinate's membrane pump (2) is by under Wel packing (25)
The well liquid of side is drawn into subordinate's airtight cavity, is then discharged out into the oil jacket annular space above Wel packing (25)；Higher level every
Well liquid in oil jacket annular space is drawn into higher level's airtight cavity by membrane pump (1), is then discharged out into production tube, so that by well liquid
Ground is lifted to by production tube.
2. according to claim 1 pair of barrier film latent oil Diaphragm pump system, it is characterised in that：Higher level's membrane pump (1)
Higher level's cylinder sleeve (10-1) is fixedly installed in top connection (7-1)；Top connection (7-1) passes through top tubing nipple (4) and production oil
Pipe is connected；Higher level's cylinder sleeve (10-1) is split type or integral type with top connection (7-1).
3. according to claim 2 pair of barrier film latent oil Diaphragm pump system, it is characterised in that：Subordinate's membrane pump (2)
Subordinate's cylinder sleeve (10-2) is fixedly installed in lower contact (7-2), the lower end connection bottom tubing nipple (24) of lower contact (7-2),
Fixed cover is provided with Wel packing (25) on bottom tubing nipple (24)；Oil well can be divided into two sections by Wel packing (25)
To realize that relay is lifted, the inner chamber of bottom tubing nipple (24) is connected with the underlying space of Wel packing (25)；Oil well is sealed
Every device (25) superjacent air space be oil jacket annular space；Subordinate's cylinder sleeve (10-2) is split type or integral type with lower contact (7-2).
4. according to claim 3 pair of barrier film latent oil Diaphragm pump system, it is characterised in that：Higher level's membrane pump (1)
Top connection (7-1) and the lower contact (7-2) of subordinate's membrane pump (2) are fixedly installed in membrane pump machine unit shell (14).
5. according to claim 1 pair of barrier film latent oil Diaphragm pump system, it is characterised in that：The movement conversion mechanism includes
Crankshaft toothed wheel assembly (12), little gear (18), connecting rod (11), little gear (18) connection submersible electric machine with oil axle (21), little gear (18)
It is meshed with the gear wheel of crankshaft toothed wheel assembly (12)；The gear wheel of crankshaft toothed wheel assembly (12) is connected with crankshaft eccentric；Bent axle
The bent axle connection connecting rod (11) of gear assembly (12)；Connecting rod (11) connection higher level's piston (16-1) or subordinate's piston (16-2).
6. according to claim 1 pair of barrier film latent oil Diaphragm pump system, it is characterised in that：Higher level's airtight cavity is opened up
There are well liquid suction inlet (6) and well liquid outlet (13), higher level's airtight cavity is connected by well liquid suction inlet (6) with oil jacket annular space,
Higher level's membrane pump feed liquor valve assembly (8) is used for the opening and closing for controlling well liquid suction inlet (6)；Higher level's airtight cavity passes through well liquid outlet
(13) connected with the inner chamber of production tube, higher level's membrane pump liquid valve assembly (15) is used to control opening for well liquid outlet (13)
Close.
7. according to claim 6 pair of barrier film latent oil Diaphragm pump system, it is characterised in that：Subordinate's airtight cavity is opened up
There are well liquid suction inlet and well liquid outlet, subordinate's airtight cavity is connected by the inner chamber of well liquid suction inlet and bottom tubing nipple (24)
Logical, subordinate's membrane pump feed liquor valve assembly (22) is used for the opening and closing for controlling well liquid suction inlet；Subordinate's airtight cavity is discharged by well liquid
Mouth is connected with oil jacket annular space, and subordinate's membrane pump liquid valve assembly (23) is used for the opening and closing for controlling well liquid outlet.
8. according to claim 1 pair of barrier film latent oil Diaphragm pump system, it is characterised in that：The submersible electric machine with oil includes latent oil
Rotor (19), submersible motor rotor (19) connection submersible electric machine with oil axle (21)；Submersible motor rotor (19) is arranged at latent oil electricity
In machine stator (20).
9. a kind of relay lifting method of double barrier film latent oil Diaphragm pump systems described in claim 1, it is characterised in that including with
Lower step：
Electric energy is delivered to submersible electric machine with oil, submersible electric machine with oil driving submersible electric machine with oil axle by ground driving equipment by cable (5) from ground
(21) rotate；Submersible electric machine with oil axle (21) drives higher level's piston (16-1) and subordinate's piston (16-2) in the same direction by movement conversion mechanism
Move back and forth, so that higher level's barrier film (9-1) and subordinate's barrier film (9-2) move up and down；
When subordinate's barrier film (9-2) is moved upwards, make to produce negative pressure in subordinate's airtight cavity, this negative pressure forces subordinate's membrane pump to enter
Liquid valve assembly (22) is opened, so as to be sucked the well liquid below Wel packing (25) from well liquid by bottom tubing nipple (24)
Mouth is drawn into subordinate's airtight cavity；When subordinate's barrier film (9-2) is moved downward, make to produce malleation in subordinate's airtight cavity, this
Malleation forces subordinate's membrane pump liquid valve assembly (23) to be opened, so that the well liquid in subordinate's airtight cavity is expelled into oil well packing
In oil jacket annular space above device (25)；
When higher level's barrier film (9-1) is moved downward, make to produce negative pressure in higher level's airtight cavity, this negative pressure forces higher level's membrane pump to enter
Liquid valve assembly (8) is opened, and the well liquid in oil jacket annular space is drawn into higher level's airtight cavity by well liquid suction inlet (6)；When upper
When level barrier film (9-1) is moved upwards, make to produce malleation in higher level's airtight cavity, this malleation forces higher level's membrane pump liquid valve assembly
(15) open, so that the well liquid in higher level's airtight cavity be expelled to by well liquid outlet (13) through top tubing nipple (4)
In production tube；
Above procedure circulation is carried out, you can well liquid is lifted into ground by production tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710393916.1A CN106989000A (en) | 2017-05-28 | 2017-05-28 | Double barrier film latent oil Diaphragm pump systems and its relay lifting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710393916.1A CN106989000A (en) | 2017-05-28 | 2017-05-28 | Double barrier film latent oil Diaphragm pump systems and its relay lifting method |
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| Publication Number | Publication Date |
|---|---|
| CN106989000A true CN106989000A (en) | 2017-07-28 |
Family
ID=59420303
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710393916.1A Withdrawn CN106989000A (en) | 2017-05-28 | 2017-05-28 | Double barrier film latent oil Diaphragm pump systems and its relay lifting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021133275A1 (en) * | 2019-12-26 | 2021-07-01 | Ztm Maki̇ne Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ | A valve block for geothermal wells |
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| CN2823597Y (en) * | 2005-07-18 | 2006-10-04 | 中国石化胜利油田有限公司采油工艺研究院 | Linear motor double pumping oil pumping device for downhole |
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