CN107917063A - Power set and oil extraction system - Google Patents
Power set and oil extraction system Download PDFInfo
- Publication number
- CN107917063A CN107917063A CN201711286754.8A CN201711286754A CN107917063A CN 107917063 A CN107917063 A CN 107917063A CN 201711286754 A CN201711286754 A CN 201711286754A CN 107917063 A CN107917063 A CN 107917063A
- Authority
- CN
- China
- Prior art keywords
- plunger
- pump
- power set
- driving
- rotor block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 74
- 238000006073 displacement reaction Methods 0.000 claims abstract description 27
- 230000015572 biosynthetic process Effects 0.000 claims description 34
- 239000012530 fluid Substances 0.000 claims description 12
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 239000003208 petroleum Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 13
- 230000007547 defect Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 51
- 238000000034 method Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000306 component Substances 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 6
- 239000003129 oil well Substances 0.000 description 6
- 239000010779 crude oil Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 244000062793 Sorghum vulgare Species 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 235000019713 millet Nutrition 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
Landscapes
- 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)
- Reciprocating Pumps (AREA)
Abstract
A kind of oil extraction system the present invention relates to power set and using the power set, the power set include positive displacement pump, reciprocating-type supercharger and reversing unit；Positive displacement pump includes pump case, and the side wall of pump case is interior formed with low pressure liquid runner and highly pressurised liquid runner, and two groups of flow channel for liquids all extend to pumping out for pump case and hold and be connected with reversing unit；Coaxial embedded rotor block in pump chamber, formed with least one through hole for being used to be directed to the liquid in low pressure liquid runner in highly pressurised liquid runner in rotor block, plunger is slidably equipped with through hole；The driving crank for being used for driving each plunger in corresponding through hole toward polyslip is equipped with rotor block.Positive displacement pump and booster are fitted to each other by above-mentioned power set, and output pressure can be multiplied, and solve the defects of positive displacement pump lift and discharge capacity are all restricted in the prior art.It is above-mentioned that lift can be effectively improved based on the oil extraction system with booster formula positive displacement pump, it can meet that deep-well and ultradeep well recover the oil and require.
Description
Technical field
The invention belongs to technical field of oil extraction equipment, and in particular to a kind of power set and the oil recovery using the power set
System.
Background technology
The non-verified oil reserves in China about 85 × 108T, wherein 73% is imbedded in deep layer.Deep-well and the depth in ultradeep well oil field
The oil reservoir position of well and ultradeep well is usually all at 3000 meters to 4000 meters or so, and there are various contradictions for current various mechanical oil recoverys
Problem.
(1) fine strain of millet formula pumping production system is swum
Trip fine strain of millet formula pumping production system is made of ground pumping unit system and 2 part of underground pumping system, is oil field
Main oil production equipment, usage quantity is big, and power consumption is big, and system effectiveness is low, belongs to typical " low load with strong power ".
The casing programme of deep-well or ultradeep well is more complicated, due to hole deviation, it is azimuthal change and easily cause oil extraction pump
Friction and wear, during using existing common oil well pump, wastage significantly increases, and oil pump plunger piston both ends are acted in deep-well
Pressure difference up to number 10Mpa, the effect of pressure will be such that the annular space between oil well pump and plunger further increases so that wastage into
The increase of one step, influences the pump efficiency of oil well pump；In addition, common oil well pump integral strength is low, swollen pump phenomenon easily occurs in deep-well, draws
Rise pump damage and underground break it is de-.
In order to meet the needs of deep mining, ground uses large-scale pumping unit, and maximum load makes trip fine strain of millet formula more than 160KN
Pumping unit volume dramatically increases, and adds one-time investment.
(2) screw pump Lifting Technique
Screw pump is made of stator and rotor, and the transmission to medium is realized by the rotary motion of rotor.Since rubber is determined
Son limitation, the lift of screw pump is small, and current most of field applications are the wells in well depth 1000m or so, can not be taken out deeply.
(3) submersible electric pump oil extraction system
Submersible electric pump is also known as electric submersible centrifugal pump, mainly by centrifugal multistage pump multiple centrifugal pump, separator, protector and submersible motor group
Into it is big to be mainly characterized by discharge capacity, is best suited for middle and high Water-cut Period and recovers the oil, and manages conveniently.Submersible electric pump oil extraction system is in state
Inside and outside field use is more and more extensive, and major defect is that depth of setting is limited by power of motor, the centrifugal pump that 2000 meters of lift
Up to 20 meters, equipment is expensive, and initial investment is high；Regular maintenance requires high；Method there is no to work normally for 4000 meters of ultra-deep liftings.
In conclusion existing three kinds main machine mining methods cannot meet the demand of the economic development of deep-well and ultradeep well,
Urgent need allows running cost to maintain lower level new oil production method.
The content of the invention
A kind of oil extraction system the present embodiments relate to power set and using the power set, can at least solve existing
The segmental defect of technology.
The present embodiments relate to a kind of power set, including positive displacement pump, its further include reciprocating-type supercharger and with institute
The matched reversing unit of reciprocating-type supercharger is stated, the positive displacement pump includes pump case, and the pump case has driving end, pumps out
End and the pump chamber of cylinder, the side wall of the pump case are interior formed with low pressure liquid runner and highly pressurised liquid runner, two groups of liquid
Runner turns on the pump chamber and all extends to pump out described in perforation and holds and be connected with the reversing unit；
Can be in the rotating rotor block of own axes, the rotor block formed with least in coaxial be embedded with the pump chamber
One is used to for the liquid in the low pressure liquid runner to be directed to through hole in the highly pressurised liquid runner, each described to pass through
Be slidably equipped with a plunger in through hole, the axial direction of each plunger along the rotor block set gradually and axis with the rotor block
Axis it is vertical；It is used to drive each plunger back and forth to slide in the corresponding through hole in being coaxially provided with the rotor block
The driving crank of shifting, the driving crank have the connecting portion being connected with the rotor block and the driving device for being connected peripheral hardware
Driving section, each plunger is connected with the driving crank.
As one of embodiment, the driving crank includes connecting pin shaft part, driving end shaft part and multiple gearratio of cycloid axle formation,
The connecting pin shaft part and the driving end shaft part are coaxial with the rotor block, and each gearratio of cycloid axle formation is along the rotor block
Axially it is set in turn between the connecting pin shaft part and the driving end shaft part, the axis of each gearratio of cycloid axle formation deviates institute
The axis of connecting pin shaft part is stated, each plunger is corresponded to be connected with gearratio of cycloid axle formation one of them described.
As one of embodiment, each plunger offers perforating, and the radius of each perforating, which is more than, to be corresponded to
The sum of the eccentricity of radius and the gearratio of cycloid axle formation of the gearratio of cycloid axle formation, each plunger is set in the corresponding eccentric shaft
Section is outer.
As one of embodiment, each plunger includes plunger body and two are held push piece, each perforating difference
It is opened in the corresponding plunger body, it is each described to hold push piece to be respectively provided with curvature identical with the corresponding gearratio of cycloid axle formation curvature
Arc hold and push away groove, it is each it is described hold push away groove central angle be respectively less than 180 ° and notch direction with the corresponding plunger body
It is axial identical, each plunger two described in hold and push away that groove face is set and cell wall reclines with the corresponding gearratio of cycloid axle formation.
As one of embodiment, in each plunger, including at least one first plunger and at least one second plunger, respectively
The axis of first plunger is parallel to each other, and the axis of each second plunger is parallel to each other, and the axis of first plunger
It is vertical each other with the axis of second plunger.
As one of embodiment, the reciprocating-type supercharger includes pressurized cylinder, and the pressurized cylinder has a chamber and point row
Two rod cavities in the seat chamber both sides, one end of the remote seat chamber of each rod cavity are communicated with inlet and discharge opeing
Mouthful, piston seat is slidably equipped with the seat intracavitary, the both ends of the piston seat are separately installed with one and are slidedly arranged in respective side rod cavity
Piston rod；In in the pressurized cylinder wall body formed with two groups of supercharging runners being connected respectively with the reversing unit, described in two groups
Supercharging runner is turned on the seat chamber and conducting orifice is respectively in the piston seat both sides.
As one of embodiment, the reversing unit includes commutator housing and is arranged at changing in the commutator housing
To mechanism, the pressurized cylinder, the commutator housing are sequentially coaxially concatenated with the pump case, the commutator housing with institute
The end for pumping out end connection is stated formed with the two group of first control runner connected respectively with flow channel for liquids described in two groups, the commutation
Device housing with the end that the pressurized cylinder is connected formed with being controlled respectively with being pressurized two group second of flow passage described in two groups
Runner.
As one of embodiment, two leakage fluid drams are communicated with high pressure discharge opeing runner, high pressure discharge opeing runner described in two groups
All extend to one end end for the remote commutator housing for penetrating through the pressurized cylinder；Two inlets penetrate through the increasing
The side wall of cylinder pressure.
The present embodiments relate to a kind of oil extraction system, including power set as described above, the biography of the driving crank
Dynamic portion is connected with driving device, and the pressurized cylinder is connected with petroleum pipeline and two leakage fluid drams are connected with the petroleum pipeline.
As one of embodiment, the driving device includes submersible motor, the driving end of the pump case and the latent oil
Motor is connected, the driving section and the output axis connection of the submersible motor.
The embodiment of the present invention at least has the advantages that：
Power set provided by the invention, positive displacement pump and booster are fitted to each other, which carries for booster
For power, and the output pressure of positive displacement pump is multiplied by booster, thus solve in the prior art positive displacement pump because by
Crankshaft length limitation, the plunger of series connection influence no more than the factors such as 8 and cause its lift and that discharge capacity is all restricted is scarce
Fall into.Above-mentioned positive displacement pump, is rotated using rotor block and coordinated with piston reciprocation movement, realized that the supercharging to low pressure liquid pumps out, tie
Structure is simple, equipment cost is cheap, and operation energy consumption is low, and production efficiency is higher, service life length.
Oil extraction system provided by the invention, based on above-mentioned band booster formula positive displacement pump, crude oil output pressure may be up to
More than 50MPa, can effectively improve lift, disclosure satisfy that more than 3000 meters deep-wells and ultradeep well recover the oil and require.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of power set provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of positive displacement pump provided in an embodiment of the present invention；
Fig. 3 is sectional views of the Fig. 2 along A-A；
Fig. 4 and Fig. 5 is the assembling structure schematic diagram of booster provided in an embodiment of the present invention and reversing unit；
Fig. 6 is sectional views of the Fig. 5 along B-B.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Embodiment one
Such as Fig. 1, the embodiment of the present invention provides a kind of power set, including positive displacement pump 1, reciprocating-type supercharger 2 and with institute
State the matched reversing unit 3 of reciprocating-type supercharger 2；Such as Fig. 2, the positive displacement pump 1 includes pump case 101, the pump case 101
With driving end, end and cylindrical pump chamber are pumped out, the side wall of the pump case 101 is interior formed with 105 He of low pressure liquid runner
Highly pressurised liquid runner 106, two groups of flow channel for liquids turned on the pump chamber and all extend to perforation described in pump out end and with it is described
Reversing unit 3 connects；Can be around the rotating rotor block 102 of own axes, the rotor block 102 in coaxial be embedded with the pump chamber
It is interior to be used to the liquid in the low pressure liquid runner 105 being directed in the highly pressurised liquid runner 106 formed with least one
Through hole 1021, be slidably equipped with a plunger 104 in each through hole 1021, each plunger 104 is along the rotor block
102 axial direction is set gradually and axis is vertical with the axis of the rotor block 102；It is coaxially provided with the rotor block 102
For driving driving crank 103 of each plunger 104 toward polyslip in the corresponding through hole 1021, the transmission is bent
Axis 103 has the driving section of the connecting portion being connected with the rotor block 102 and the driving device 4 for being connected peripheral hardware, each described
Plunger 104 is connected with the driving crank 103.
Above-mentioned pump case 101 generally uses hollow cylindrical housings, it is of course also possible to use the shell of the shape such as cuboid
Body.Above-mentioned through hole 1021 is used to the liquid in low pressure liquid runner 105 being directed in highly pressurised liquid runner 106, to realize
This function, the quantity of through hole 1021 and position are preferably correspondingly arranged, each in rotor block 102 in own axes rotary course
1021 part-time of through hole can be connected with least part face of low pressure liquid runner 105, and have part-time can be with high pressure
At least part face of flow channel for liquids 106 connects, so that the liquid entered via low pressure liquid runner 105 can enter through hole
In 1021, then it is directed into highly pressurised liquid runner 106.Preferably, above-mentioned low pressure liquid runner 105 and highly pressurised liquid runner 106
Both preferably it is the corresponding liquid flow straight slot opened up on 101 inner wall of pump case, a plurality of stream of housing axial direction can be parallel to
Road groove or a complete continuous flow path groove, each flow path groove, which extends, to be opened up to the above-mentioned end that pumps out so as to single with commutation
Member 3 connects, and can be enclosed between each 102 outer wall of flow path groove and rotor block and set to form a liquid flow cavity；Alternatively, above-mentioned low pressure liquid
Runner 105 and highly pressurised liquid runner 106 can also be formed at the flow channel for liquids in 101 wall of pump case, and correspondence need to be in pump case
At least one delivery hole turned on flow channel for liquids is opened up on 101 inner walls, the setting of delivery hole is preferably to be and above-mentioned through hole
1021 correspond configuration etc., this is that those skilled in the art are easily designed according to actual conditions, is specifically omitted herein.As
The preferred embodiment of the present embodiment, above-mentioned low pressure liquid runner 105 and highly pressurised liquid runner 106 are to be opened in pump case
A complete continuous flow path groove on 101 inner walls, two flow path grooves are arranged symmetrically relative to the central axes of pump case 101.
It is easy-to-understand to, the length (axial length) of each plunger 104 is less than the length of corresponding through hole 1021.In rotor
In 102 rotation process of body, each through hole 1021 can be turned on periodically with low pressure liquid runner 105, and liquid is via low pressure liquid
Runner 105 enters in each through hole 1021, and space can be conceded to accommodate liquid by being slided by plunger 104, then pass through rotor block 102
Rotate and the side for storing liquid of each through hole 1021 is turned on highly pressurised liquid runner 106, will by the activity of plunger 104
Liquid in through hole 1021 is pushed into highly pressurised liquid runner 106, realizes pumping out for liquid.
Those skilled in the art know, the basic functional principle based on reciprocating-type supercharger 2, it is necessary to the booster 2 it is low
The alternating oil inlet of two cavitys or oil extraction of compressing cylinder, realize two opposite strokes of its direction alternately, two cavity of low pressure oil cylinder
Alternately oil inlet or oil extraction are realized by above-mentioned reversing unit 3.For the structure of above-mentioned power set provided in this embodiment,
Two cavitys for defining the low pressure oil cylinder are respectively the first cavity and the second cavity, in the first stroke of the booster 2, the first chamber
Body oil inlet and the second cavity oil extraction；In the second stroke of the booster 2, the first cavity oil extraction and the second cavity oil inlet.Then, lead to
Cross above-mentioned reversing unit 3 to act on, in the first stroke of the booster 2, above-mentioned 106 and first cavity of highly pressurised liquid runner connects
Logical, low pressure liquid runner 105 is connected with the second cavity；In the second stroke of the booster 2, above-mentioned highly pressurised liquid runner 106
Connected with the second cavity, low pressure liquid runner 105 is connected with the first cavity.
In above-mentioned positive displacement pump 1, the core component such as pump housing, through hole 1021, plunger 104 is cylindrical component,
Very high class fit can be reached during processing, rubbed between component small, there is volumetric efficiency height, smooth running, uniform flow
The advantages that property is good, noise is low, operating pressure is high.
Above-mentioned rotor block 102 and driving crank 103 are coaxial, are that rotor block 102 and the main shaft of driving crank 103 are coaxial,
This is to be apparent from ground for those skilled in the art；Correspondence opens up accommodating cavity in rotor block 102, to house the driving crank
103, which opens up along rotor block 102 is axial, can be the chamber of cylindrical shape, and with the main shaft of driving crank 103
Coaxially；In the present embodiment, it is preferable that above-mentioned 103 both ends of driving crank stretch out in outside the both ends of rotor block 102 respectively, wherein,
Its driving section with the driving device 4 of peripheral hardware easy to being connected, and for the structure that pump case 101 is threadedly coupled with jointing, on
State outside the corresponding end of the connecting portion stretching rotor block 102 of driving crank 103 and pass through axis between the jointing of respective side
Hold and coordinate realization to be rotatably connected, in addition, between rotor block 102 and pump case 101 and between rotor block 102 and jointing
Can be by bearing fit, to ensure the job stability of rotor block 102 and reliability.
To those skilled in the art, it is easy to it is well established that to realize that driving crank 103 drives each plunger 104 to exist
It is connected in corresponding through hole 1021 toward the function of polyslip, above-mentioned each plunger 104 with the eccentric component of driving crank 103,
Such as rod journal or crank arm, can realize the connection between plunger 104 and corresponding eccentric component by connecting rod etc., and
Plunger 104 is driven to make straight line sliding motion in corresponding through hole 1021 by the eccentric component, this is people in the art
Member is according to the easily designed realization of the prior art, and specific details are not described herein again.Fig. 2 is referred to, one as the present embodiment is excellent
Embodiment is selected, above-mentioned driving crank 103 is optimized as follows：The driving crank 103 includes connecting pin shaft part 1031, driving end
Shaft part 1033 and multiple gearratio of cycloid axle formation 1032, the connecting pin shaft part 1031 and the driving end shaft part 1033 with described turn
Daughter 102 is coaxial, and the axial direction of each gearratio of cycloid axle formation 1032 along the rotor block 102 is set in turn in the connecting pin shaft part
Between 1031 and the driving end shaft part 1033, the axis of each gearratio of cycloid axle formation 1032 deviates the connecting pin shaft part 1031
Axis, each plunger 104 corresponds to and is connected with gearratio of cycloid axle formation one of them described 1032.Correspondingly, each plunger 104
Offer perforating 1041, the radius of each perforating 1041 be more than the radius of the corresponding gearratio of cycloid axle formation 1032 with
The sum of eccentricity of the gearratio of cycloid axle formation 1032, each plunger 104 are set in outside the corresponding gearratio of cycloid axle formation 1032, that is, are driven
Bent axle 103 sequentially passes through each plunger 104, and each gearratio of cycloid axle formation 1032 can be freely rotated in corresponding perforating 1041.Further
Ground, such as Fig. 2 and Fig. 3, each plunger 104 includes plunger body and two are held push piece 1042, and each perforating 1041 divides
It is not opened in the corresponding plunger body, it is each described to hold push piece 1042 and be respectively provided with curvature and the corresponding gearratio of cycloid axle formation
The identical arc of 1032 curvature, which is held, pushes away groove, it is each it is described hold push away groove central angle be respectively less than 180 ° and notch direction with corresponding institute
State that the axial direction of plunger body is identical, each plunger 104 two described in hold push away groove face set and cell wall with corresponding institute
Gearratio of cycloid axle formation 1032 is stated to recline；Namely two hold and push away the cell wall of groove and be located on same cylindrical surface, and two cell walls cannot be enclosed
One complete cylindrical surface, is apparent from ground, the diameter on the cylindrical surface is identical with the diameter of gearratio of cycloid axle formation 1032, so that gearratio of cycloid axle formation 1032
When with driving end shaft part 1033 when rotation, its outside wall surface can be held with the two of corresponding plunger 104 all the time pushes away groove fitting, eccentric at it
Under rotary action, two can be promoted to hold and push away groove alternately closer or far from the axis of rotor block 102, that is, drive corresponding plunger 104 to exist
Toward polyslip in through hole 1021；Hold and push away the sum of the central angle of cell wall of groove and be less than 360 ° due to two, i.e., two hold to push away between groove and have
There is certain bit space that allows, allow gearratio of cycloid axle formation 1032 to there is partial period not connect with holding to push away groove or wear hole wall in rotation process
Touch, so as to avoid gearratio of cycloid axle formation 1032 from producing the active force along 104 radial direction of plunger to plunger 104；Those skilled in the art
It can realize that gearratio of cycloid axle formation 1032 can link up in rotation process according to reasonable design (including two hold push away the central angle etc. of groove)
Ground drives plunger 104 in corresponding through hole 1021 toward polyslip.
The present embodiment is rotated and is realized the reciprocating motion of each plunger 104 using the drive rotor block 102 of driving crank 103,
Simple in structure, the drive mechanism of no complexity, reliable operation, can accurately realize the drive control to plunger 104.Above-mentioned transmission is bent
During axis 103 forms, traditional crank arm and rod journal are integrated into a gearratio of cycloid axle formation 1032, the driving crank can be simplified
103 structure, easy to design, structure precision is high, can accurately realize the drive control to plunger 104.On it should be noted that
Above-mentioned drive connection structure is not limited between the gearratio of cycloid axle formation 1032 and plunger 104 stated, can also such as use connecting rod to connect
Deng the drive connection relation of realization therebetween, this is that those skilled in the art are easy to definite, is no longer described in detail herein.
It is removably mounted in the corresponding plunger body it is further preferred that holding push piece 1042 described in each, such as may be used
It is bolted；Above-mentioned Detachable connection structure, can facilitate the mating connection between driving crank 103 and each plunger 104
Relation so that can mutually be separated between driving crank 103 and plunger 104, be easily installed maintenance.Wherein, respectively holding push piece 1042 can
To be mounted on 1041 hole wall of perforating of plunger body；Alternatively, can be that one or two are opened up on plunger body outer wall
A mounting groove (having illustrated, do not mark), the slot bottom of each mounting groove is penetrated through by corresponding perforating 1041, using a mounting groove
When, it is opened on the connecting pin of close rotor block 102 or the outer wall of driving end of plunger body (is put vertically with pump case 101
Example is set to, then is corresponded on the top of the plunger body or bottom and opens up the mounting groove), two, which hold push piece 1042, is installed in the installation
In groove and it holds to push away groove and extend corresponding perforating 1041 and sentence and is just bonded with gearratio of cycloid axle formation 1032, during using two mounting grooves,
The axial direction of two mounting grooves along rotor blocks 102 is respectively in the axis both sides of plunger body, and configuration can be corresponded in each mounting groove
(can be understood as each supporting parts includes two decomposition parts to the above-mentioned push piece 1042 that holds, and two are decomposed part respectively positioned at two peaces
In tankage).
As a kind of embodiment of power set provided in this embodiment, such as Fig. 2, in each plunger 104, bag
At least one first plunger and at least one second plunger are included, the axis of each first plunger is parallel to each other, and each described second
The axis of plunger is parallel to each other, and the axis of first plunger is vertical each other with the axis of second plunger.When the first column
When the both ends of through hole 1021 where filling in are connected with low pressure liquid runner 105 and highly pressurised liquid runner 106 respectively, the second plunger
The both ends of the through hole 1021 at place are blocked by 101 inner wall of pump case；When the both ends of the through hole 1021 where the first plunger
When being blocked by 101 inner wall of pump case, the both ends of the through hole 1021 where the second plunger respectively with low pressure liquid runner 105 and height
Press liquid runner 106 connects.By said structure, the work efficiency of above-mentioned positive displacement pump 1 can be improved, so as to improve this power
The work efficiency of device.It is further preferred that such as Fig. 2, along the axial direction of the rotor block 102, each first plunger and each institute
The second plunger arranged crosswise is stated, i.e., has second plunger between every two neighboring first plunger, per two neighboring second plunger
Between have first plunger, may be such that the hydraulic pressure more equalization stable in highly pressurised liquid runner 106.
In the present embodiment, above-mentioned 104 quantity of plunger can select in the range of 2~200, be raised with the supercharging for reaching required
Journey needs.
When driving device 4 drives driving crank 103 to rotate, each plunger 104 rotates therewith, while drives rotor block 102
Rotated in pump case 101.Due to the wobbler action of the eccentric component of driving crank 103, each plunger 104 is driven in own rotation
While in corresponding through hole 1021 do straight reciprocating motion again so that two terminations of plunger 104 are with respect to pump case
Feed liquor chamber and discharge opeing chamber are alternatively formed between 101.
Power set provided in this embodiment, positive displacement pump 1 and booster 2 are fitted to each other, which is supercharging
Device 2 provides power, and the output pressure of positive displacement pump 1 is multiplied by booster 2 (in the present embodiment, can be pressurized 2~15
Times), thus solve positive displacement pump 1 in the prior art because the plunger 104 that is limited, connected by crankshaft length no more than 8 etc. because
The defects of element influences and causes its lift and discharge capacity to be all restricted.Above-mentioned positive displacement pump 1, is rotated and column using rotor block 102
Plug 104, which moves back and forth, to be coordinated, and realizes that the supercharging to low pressure liquid pumps out, and simple in structure, equipment cost is cheap, operation energy consumption is low,
Production efficiency is higher, service life length.
Power set provided in this embodiment are preferably to be applied to oil recovery technique field, for this reason, optimizing the power set
Structure is as follows：
Such as Fig. 4 and Fig. 5, the reciprocating-type supercharger 2 includes pressurized cylinder 201, and the pressurized cylinder 201 has a chamber 202
With two rod cavities 203 for being respectively in 202 both sides of seat chamber, one end of the remote seat chamber 202 of each rod cavity 203 connects
Inlet 208 and leakage fluid dram are connected with, in being slidably equipped with piston seat 204 in the seat chamber 202, the both ends of the piston seat 204 are distinguished
One piston rod 205 being slidedly arranged in respective side rod cavity 203 is installed；In in 201 wall body of pressurized cylinder formed with respectively with institute
Two groups of supercharging runners 209 of the connection of reversing unit 3 are stated, runner 209 is pressurized described in two groups and turns on and turns on the seat chamber 202
Mouth is respectively in 204 both sides of piston seat.This chamber 202 forms the low pressure oil cylinder of above-mentioned booster 2, the piston seat 204
This chamber 202 is divided into two parts cavity, which is the first cavity and the second chamber for forming above-mentioned booster 2
Body；Above-mentioned each inlet 208 is easy-to-understand to, the check valve at inlet 208 with being both provided with check valve 207 at leakage fluid dram
207 only allow liquid to enter from the inlet 208 in corresponding rod cavity 203, and the check valve 207 at leakage fluid dram only allows pair
The liquid in rod cavity 203 is answered to be discharged through the leakage fluid dram.It is further preferred that such as Fig. 1, Fig. 4 and Fig. 5, the reversing unit 3 includes
Commutator housing and the changement being arranged in the commutator housing, the pressurized cylinder 201, the commutator housing and institute
Pump case 101 is stated sequentially coaxially to concatenate, the commutator housing with the end for pumping out end connection formed with respectively with two
Two group of first control runner 301 of group flow channel for liquids connection, the commutator housing are connected with the pressurized cylinder 201
End is preferably formed with the two group of second control runner 302 connected respectively with being pressurized runner 209 described in two groups, correspondence, on
One end that two supercharging runners 209 are both preferably the close commutator housings from pressurized cylinder 201 is stated to its 202 direction of chamber to prolong
Stretch, so as to dock conducting with above-mentioned two group second control runner 302 respectively.
Compared to the 202/ low pressure oil cylinder of seat chamber that reversing unit 3 is arranged in booster 2 side conventional in the prior art (i.e.
The axis of pressurized cylinder 201 is parallel with the axial offset of commutator housing) structure, the present embodiment is by booster 2, reversing unit 3
It is sequentially connected in series with positive displacement pump 1 so that above-mentioned power set can be applied in the oil well of straight-tube shape recover the oil, and can solve existing
The bottleneck problem that technology middle-deep well and ultradeep well recover the oil.
Further, as Fig. 4-Fig. 6, two leakage fluid drams are communicated with high pressure discharge opeing runner 206, high pressure described in two groups
Liquid stream road 206 all extends to one end end for the remote commutator housing for penetrating through the pressurized cylinder 201；Two inlets
208 penetrate through the side wall of the pressurized cylinder 201.Based on above-mentioned design, the crude oil in oil well is drawn by two inlets 208, is led to
One end connected pipes of the remote commutator housing of pressurized cylinder 201 are crossed, can will correspond to rod cavity by two high pressure discharge opeing runners 206
The crude oil drawn in 203 is discharged into oil pipe, and the pressurization based on above-mentioned positive displacement pump 1 Yu booster 2, can reach required raise
Journey, so that crude oil is lifted on ground.
Above-mentioned reversing unit 3 can use the reversing arrangement for adapting to the work of booster 2 conventional in the prior art, can be by
Market is bought；In the present embodiment, which is preferably to use full-hydraulic automatic reversing device, its concrete structure is herein not
Repeat again.
Embodiment two
Such as Fig. 1, the present embodiments relate to a kind of oil extraction system, including the power set that above-described embodiment one is provided,
The driving section of the driving crank 103 is connected with driving device 4, and the pressurized cylinder 201 is connected with petroleum pipeline and two discharge opeings
Mouth is connected with the petroleum pipeline.Preferably, the driving device 4 includes submersible motor 4, the driving end of the pump case and institute
State submersible motor 4 to be connected, the driving section (is preferably connected knot with the output axis connection of the submersible motor 4 using spline
Structure).The connection structure of above-mentioned submersible motor 4 and positive displacement pump 1 is that those skilled in the art are easily designed according to the prior art,
No longer repeat one by one herein.
Oil extraction system provided in this embodiment, based on above-mentioned 2 formula positive displacement pump 1 of band booster, with existing machine mining method
Compare, have the following advantages that：
(1) crude oil output pressure may be up to more than 50MPa, disclosure satisfy that more than 3000 meters deep-wells and ultradeep well recover the oil and want
Ask.
(2) it is significantly energy saving
Above-mentioned oil extraction system electric energy almost all participates in lifting oil gas, and theoretical efficiency is up to 95%, with beam pumping unit
Average operating efficiency is only 26% to compare, and gross efficiency improves 64%.China's onshore oil field beam pumping unit is more than 200,000 mouthfuls, year
Power consumption exceedes 10,000,000,000 kilowatt hours, this oil extraction system substitutes trip fine strain of millet formula pumping production and is expected to save electric energy more than 6,400,000,000 kilowatts every year
When.
(3) service life is grown
The stable load of above-mentioned oil extraction system, and carried by oil pipe, without protector as main support, work
It is also better than electric latent centrifugal pump to make operating mode, in addition, extracting device of oil is efficient, required 4 power of submersible motor is small, further increases
Service life.By theoretical comparative analysis, the long lifespan of new pump saved a large amount of operation costs every year up to more than 9 years.
(4) cost is low, saves ground cost of erection and installation cost
Above-mentioned power set separate unit cost is well below electric submersible centrifugal pump.The discharge capacity of electric submersible centrifugal pump is smaller,
System effectiveness is lower, such as discharge capacity is 50m3The electric submersible pump efficiency of/d is only 42%.And above-mentioned power set are applied, it is efficient to reach
95%, it is smaller than electric submersible centrifugal pump by 50% to lift the required power of motor of identical Liquid output, the short half of motor length；On and
State power set and be not afraid of cavitation erosion, without separator.
(5) above-mentioned oil extraction system is used for the new well of a bite without huge ground installation and sapce charge.
The oil extraction operation process of above-mentioned oil extraction system approximately as：
In upstroke process, the movement upwards of two-piston bar 205, upper piston rod 205 compresses the liquid in upper rod cavity 203,
Liquid on this in rod cavity 203 is discharged into oil pipe；Meanwhile the fluid pressure in lower rod cavity 203 constantly declines, so that its inlet
Check valve 207 at 208 is opened, from external world's imbibition into the lower rod cavity 203；
During down stroke, two-piston bar 205 moves downward, and the fluid pressure in upper rod cavity 203 constantly declines, outside
Boundary's liquid is inhaled on this in rod cavity 203 via its inlet 208；Liquid in the lower rod cavity 203 of the compression of lower piston rod 205, should
Liquid in lower rod cavity 203 is discharged into oil pipe.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of power set, including positive displacement pump, it is characterised in that：Further include reciprocating-type supercharger and with the reciprocating increasing
The matched reversing unit of depressor；
The positive displacement pump includes pump case, and the pump case has driving end, pumps out the pump chamber of end and cylinder, the pump case
Turn on the pump chamber and prolong formed with low pressure liquid runner and highly pressurised liquid runner, two groups of flow channel for liquids in the side wall of body
Extend to pump out described in perforation and hold and be connected with the reversing unit；
Can be in the rotating rotor block of own axes, the rotor block formed with least one in coaxial be embedded with the pump chamber
For the through hole being directed to the liquid in the low pressure liquid runner in the highly pressurised liquid runner, each through hole
A plunger is inside slidably equipped with, the axial direction of each plunger along the rotor block is set gradually and axis of the axis with the rotor block
Line is vertical；In being coaxially provided with the rotor block for driving each plunger in the corresponding through hole toward polyslip
Driving crank, the driving crank have the biography of the connecting portion being connected with the rotor block and the driving device for being connected peripheral hardware
Dynamic portion, each plunger are connected with the driving crank.
2. power set as claimed in claim 1, it is characterised in that：The driving crank includes connecting pin shaft part, driving end
Shaft part and multiple gearratio of cycloid axle formation, the connecting pin shaft part and the driving end shaft part are coaxial with the rotor block, each described
The axial direction of gearratio of cycloid axle formation along the rotor block is set in turn between the connecting pin shaft part and the driving end shaft part, each described
The axis of gearratio of cycloid axle formation deviates the axis of the connecting pin shaft part, and each plunger corresponds to and one of them described eccentric shaft
Section connection.
3. power set as claimed in claim 2, it is characterised in that：Each plunger offers perforating, each described
The radius of perforating is more than the sum of the radius of the corresponding gearratio of cycloid axle formation and the eccentricity of the gearratio of cycloid axle formation, each plunger bushing
It is located at outside the corresponding gearratio of cycloid axle formation.
4. power set as claimed in claim 3, it is characterised in that：Each plunger holds including plunger body and two and pushes away
Part, each perforating are opened in the corresponding plunger body respectively, it is each it is described hold push piece be respectively provided with curvature with it is corresponding
The identical arc of the gearratio of cycloid axle formation curvature, which is held, pushes away groove, it is each it is described hold push away groove central angle be respectively less than 180 ° and notch direction with
The axial direction of the corresponding plunger body is identical, each plunger two described in hold push away groove face set and cell wall with it is corresponding
The gearratio of cycloid axle formation recline.
5. power set as claimed in claim 1, it is characterised in that：In each plunger, including at least one first plunger
With at least one second plunger, the axis of each first plunger is parallel to each other, and the axis of each second plunger is parallel to each other,
And the axis of first plunger is vertical each other with the axis of second plunger.
6. power set as claimed in claim 1, it is characterised in that：The reciprocating-type supercharger includes pressurized cylinder, the increasing
Cylinder pressure has a chamber and is respectively in two rod cavities of the seat chamber both sides, one end of the remote seat chamber of each rod cavity
Inlet and leakage fluid dram are communicated with, is slidably equipped with piston seat in the seat intracavitary, the both ends of the piston seat are separately installed with a cunning
Piston rod in respective side rod cavity；In in the pressurized cylinder wall body formed with two groups be connected respectively with the reversing unit
Runner is pressurized, supercharging runner is turned on the seat chamber described in two groups and conducting orifice is respectively in the piston seat both sides.
7. power set as claimed in claim 6, it is characterised in that：The reversing unit includes commutator housing and is arranged at
Changement in the commutator housing, the pressurized cylinder, the commutator housing are sequentially coaxially concatenated with the pump case,
The commutator housing with it is described pump out end connection end formed with two groups connected respectively with flow channel for liquids described in two groups
First control runner, the commutator housing with the end that the pressurized cylinder be connected formed with respectively with described in two groups supercharging stream
Two group of second control runner of road connection.
8. power set as claimed in claim 7, it is characterised in that：Two leakage fluid drams are communicated with high pressure discharge opeing runner,
High pressure discharge opeing runner described in two groups all extends to one end end for the remote commutator housing for penetrating through the pressurized cylinder；Two institutes
State the side wall that inlet penetrates through the pressurized cylinder.
A kind of 9. oil extraction system, it is characterised in that：Including the power set as any one of claim 6 to 8, the biography
The driving section of dynamic crankshaft is connected with driving device, the pressurized cylinder be connected with petroleum pipeline and two leakage fluid drams with the oil transportation
Pipe connects.
10. oil extraction system as claimed in claim 9, it is characterised in that：The driving device includes submersible motor, the pump case
The driving end of body is connected with the submersible motor, the driving section and the output axis connection of the submersible motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711286754.8A CN107917063B (en) | 2017-12-07 | 2017-12-07 | Power device and oil extraction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711286754.8A CN107917063B (en) | 2017-12-07 | 2017-12-07 | Power device and oil extraction system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107917063A true CN107917063A (en) | 2018-04-17 |
| CN107917063B CN107917063B (en) | 2023-10-13 |
Family
ID=61898437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711286754.8A Active CN107917063B (en) | 2017-12-07 | 2017-12-07 | Power device and oil extraction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107917063B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561092A (en) * | 2018-04-22 | 2018-09-21 | 中国石油大学(华东) | Shunt nipple |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189217Y (en) * | 1992-06-06 | 1995-02-08 | 翟金涛 | Rotor piston pump |
| CN200996365Y (en) * | 2007-01-09 | 2007-12-26 | 陕西理工学院 | Oil pump |
| CN105332901A (en) * | 2014-08-10 | 2016-02-17 | 满灵子 | Well electric hydraulic conversion high-lift plunger pump |
| CN207539007U (en) * | 2017-12-07 | 2018-06-26 | 海斯比得（武汉）石油科技有限公司 | Positive displacement pump, power plant and oil extraction system |
-
2017
- 2017-12-07 CN CN201711286754.8A patent/CN107917063B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189217Y (en) * | 1992-06-06 | 1995-02-08 | 翟金涛 | Rotor piston pump |
| CN200996365Y (en) * | 2007-01-09 | 2007-12-26 | 陕西理工学院 | Oil pump |
| CN105332901A (en) * | 2014-08-10 | 2016-02-17 | 满灵子 | Well electric hydraulic conversion high-lift plunger pump |
| CN207539007U (en) * | 2017-12-07 | 2018-06-26 | 海斯比得（武汉）石油科技有限公司 | Positive displacement pump, power plant and oil extraction system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561092A (en) * | 2018-04-22 | 2018-09-21 | 中国石油大学(华东) | Shunt nipple |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107917063B (en) | 2023-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204493095U (en) | Hydraulic bidirectional effect pumping installations | |
| CN104612928A (en) | Hydraulic bidirectional pumping device | |
| CN102536807B (en) | Raw oil lifting system and method for conveying fluid by utilizing sliding vane pump | |
| AU772668B2 (en) | Improved pump | |
| CN207539007U (en) | Positive displacement pump, power plant and oil extraction system | |
| CN202545203U (en) | Downhole hydraulic oil well pump | |
| CN107917063A (en) | Power set and oil extraction system | |
| CN202768405U (en) | All-metal screw rod type oil-well pump for deep well | |
| CN107461320B (en) | Positive displacement pump and extracting device of oil | |
| CN107387379B (en) | Plunger pump and extracting device of oil | |
| CN201606228U (en) | Plunger type diaphragm pump of submersible motor | |
| CN205189836U (en) | Liquid drives screw pump oil production equipment | |
| CN201943926U (en) | Novel power-driven oil-submersible lifting plunger piston defueling pump | |
| CN102777388A (en) | All-metal screw oil well pump for deep well | |
| CN207454228U (en) | Positive displacement pump and extracting device of oil | |
| CN202467779U (en) | Crude oil lifting system | |
| CN212454380U (en) | Oil pumping device of electric screw pump capable of separately pumping and mixing out oil submersible oil | |
| CN101255860B (en) | Oil-submersible electric membrane pump | |
| CN103775318A (en) | Hydraulic transmission rodless oil pumping system | |
| CN203847360U (en) | Three-pipe type linear motor oil well pump | |
| CN103939319A (en) | Three-tube type linear motor oil well pump | |
| CN202991474U (en) | Submerged oil ball plug pump | |
| CN207033700U (en) | Plunger pump and extracting device of oil | |
| CN203499650U (en) | Magnetic suspension pump integration underground oil extraction device | |
| CN2931852Y (en) | Bidirectional piston oil extraction electric pump having oil-submerged magnetic suspension linear motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |