CN108301812A - The liquid drive beam pumping unit of liquid drive beam pumping unit and more well joint controls - Google Patents
The liquid drive beam pumping unit of liquid drive beam pumping unit and more well joint controls Download PDFInfo
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- CN108301812A CN108301812A CN201810305976.8A CN201810305976A CN108301812A CN 108301812 A CN108301812 A CN 108301812A CN 201810305976 A CN201810305976 A CN 201810305976A CN 108301812 A CN108301812 A CN 108301812A
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- oil cylinder
- well
- walking beam
- pumping unit
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- 238000005086 pumping Methods 0.000 title claims abstract description 45
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 241001023788 Cyttus traversi Species 0.000 claims abstract description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000003129 oil well Substances 0.000 claims description 29
- 239000002828 fuel tank Substances 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 157
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000032258 transport Effects 0.000 abstract description 3
- 239000000295 fuel oil Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000000446 fuel Substances 0.000 description 5
- 241000283074 Equus asinus Species 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- 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
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
- E21B43/127—Adaptations of walking-beam pump systems
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Fluid-Pressure Circuits (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses liquid drive beam pumping unit and the liquid drive beam pumping unit of more well joint controls, including holder and walking beam, the upper articulation of holder is equipped with walking beam, the front end of walking beam is fixed with horse head, horse head is connected with polished rod eye by steel wire rope, and the rear end of walking beam is equipped with counterweight, it is characterised in that：The rear portion of walking beam and the upper end of oil cylinder are hinged, and the lower end of oil cylinder is hingedly arranged on the pedestal on ground；The upper/lower terminal of the oil cylinder is connected by high-pressure oil pipe with hydraulic station respectively, and hydraulic station is electrically connected by conducting wire with PLC control cabinet.Present device is small, transports conveniently moving, safe and reliable to operation, service life is long, low energy consumption, reduces cost for oil production, improves economic benefit, it is adaptable to big load particularly suitable for the operation of beach, offshore platform and mountain area oil pumping, can meet the needs of deep-well and heavy oil wells exploitation.
Description
Technical field
The present invention relates to a kind of improvement of beam pumping unit, specifically a kind of liquid drive beam pumping unit and more wells connection
The liquid drive beam pumping unit of control.
Background technology
Beam pumping unit has used since birth after a century, be the pumping unit type that is currently mainly used of oil field it
One, still at home and abroad oil field generally uses at present.Conventional beam pumping unit is typically driven using motor, including
Holder, walking beam, horse head, polished rod eye and counterweight are hingedly mounted on holder in the middle part of walking beam, and the front end of walking beam is fixed with donkey
Head, horse head are connect by steel wire rope with polished rod eye, and downhole oil extraction device is equipped with below polished rod eye, and the rear end of walking beam is equipped with counterweight,
It is flexibly connected with motor driver in the walking beam between holder and counterweight, on the horse head that walking beam front end is driven by motor
Lower movement, to achieve the purpose that oil recovery, simple in structure, manufacture is easy, reliability is high, durability is good, easy to maintenance, Ke Yi
The round-the-clock operating in oil field, occupies very important status in oil recovery machiner.The deficiency of this conventional beam pumping unit
Be in：Counterbalance effect is poor, and loading rate is low, and working efficiency is low, and energy consumption is big, and in cost for oil production, the pumping unit electricity charge account for 30% left side
The right side, year power consumption account for the 20~30% of oil field total power consumption；Meanwhile the dynamic loading in operational process is larger, is especially loading and is subtracting
It is larger to tube rod system shock during load, easily cause danger；In applying at the scene, conventional beam pumping unit is all to use
Independent control operational mode, in this way, cost input early period in an oil recovery region is larger, system integrally consumes energy higher.
Invention content
It is an object of the present invention to provide a kind of simple in structure, equipment volume is small, transports conveniently moving, easy to process
Manufacture, easy to maintain, during beam pumping unit recovers the oil, safe and reliable to operation, service life is long, and low energy consumption, reduces
The liquid drive beam pumping unit of cost for oil production.
In order to reach object above, the technical solution adopted in the present invention is：The liquid drive beam pumping unit, including holder
And walking beam, the upper articulation of holder are equipped with walking beam, the front end of walking beam is fixed with horse head, and horse head is connected with outstanding by steel wire rope
The rear end of rope device, walking beam is equipped with counterweight, it is characterised in that：The rear portion of walking beam and the upper end of oil cylinder are hinged, and the lower end of oil cylinder is hinged
It is arranged on the pedestal on ground；The upper/lower terminal of the oil cylinder is connected by high-pressure oil pipe with hydraulic station respectively, hydraulic station
It is electrically connected with PLC control cabinet by conducting wire.
Magnetic rollers and rotary encoder are fixed in the upper end housing of the oil cylinder, the circumference of magnetic rollers is along suction
It is attached on the piston rod outer wall of oil cylinder, the shaft of magnetic rollers is fixedly connected with rotary encoder, and rotary encoder passes through conducting wire
It is electrically connected with PLC control cabinet.
The hydraulic station, including motor, oil pump, fuel tank and three-position four-way valve, motor pass through conducting wire and PLC control cabinet electricity
Connection, the drive shaft of motor are fixedly connected with the shaft of oil pump, and the oil inlet of oil pump is connected by oil pipe with fuel tank, oil pump
Oil outlet is connected by proportioning valve with the P of three-position four-way valve mouths, and the A mouths of three-position four-way valve pass through high-pressure oil pipe respectively with B mouthfuls
It is connected with the upper and lower both ends of oil cylinder, the T mouths of three-position four-way valve are connected by oil pipe with fuel tank, and PLC control cabinet passes through respectively
Conducting wire is electrically connected with three-position four-way valve and proportioning valve.
It is another object of the present invention to provide a kind of equipment volume is small, conveniently moving, manufacture easy to process, dimension are transported
Shield is convenient, while controlling the beam pumping unit of more oil wells, ensures process of the beam pumping unit in oil recovery of all oil wells
In, safe and reliable to operation, service life is long, and low energy consumption, and the liquid for reducing more well joint controls of the beam pumping unit of cost for oil production drives
Beam pumping unit.
In order to reach object above, the technical solution adopted in the present invention is：The liquid drive walking beam type of more well joint controls is pumped
Machine, every mouthful of oil well are correspondingly arranged a beam pumping unit, and the beam pumping unit includes holder and walking beam, holder it is upper
Portion is hingedly equipped with walking beam, and the front end of walking beam is fixed with horse head, and horse head is connected with polished rod eye, the rear end of walking beam by steel wire rope
Equipped with counterweight, it is characterised in that：The rear portion of the walking beam of the corresponding beam pumping unit of every mouthful of oil well is upper with corresponding oil cylinder
End is hinged, and the lower end of oil cylinder is hingedly arranged on the pedestal on ground；The upper/lower terminal of the corresponding oil cylinder of every mouthful of oil well passes through respectively
High-pressure oil pipe is connected with hydraulic station.
Magnetic rollers and rotary encoder are fixed in the upper end housing of the corresponding oil cylinder of every mouthful of oil well, it is magnetic
Along being adsorbed on the piston rod outer wall of oil cylinder, the shaft of magnetic rollers is fixedly connected the circumference of idler wheel with rotary encoder, is owned
Rotary encoder be electrically connected respectively with PLC control cabinet by conducting wire.
The hydraulic station, including motor, oil pump and fuel tank, motor are electrically connected by conducting wire with PLC control cabinet, motor
Drive shaft is fixedly connected with the shaft of oil pump, and the oil inlet of oil pump is connected by oil pipe with fuel tank, the corresponding oil of every mouthful of oil well
Cylinder is all correspondingly arranged a proportioning valve and a three-position four-way valve, and the oil outlet of oil pump is corresponding with each oil cylinder by oil pipe respectively
The import of proportioning valve be connected, the outlet of proportioning valve is connected with the P of compatible three-position four-way valve mouths, each oil cylinder
Upper and lower both ends are connected by high-pressure oil pipe with the A of compatible three-position four-way valve mouths and B mouthfuls respectively, all 3-position 4-ways
The T mouths of valve are connected by oil pipe with fuel tank, and PLC control cabinet passes through conducting wire and all three-position four-way valves and all ratios respectively
Example valve electrical connection.
The beneficial effects of the present invention are：Simple in structure, equipment volume is small, transports conveniently moving, manufacture easy to process, dimension
Shield is convenient, working media clean environment firendly；During beam pumping unit recovers the oil, safe and reliable to operation, service life is long, energy
It consumes low, reduces cost for oil production, improve economic benefit, it is right particularly suitable for the operation of beach, offshore platform and mountain area oil pumping
Big load is adaptable, can meet the needs of deep-well and heavy oil wells exploitation.
Description of the drawings
Fig. 1 is the structure of the main view of the present invention.
Fig. 2 is the oil circuit connection principle schematic of the hydraulic station of the present invention.
Fig. 3 is structural schematic diagram of the present invention under two mouthfuls of oil well use states.
Fig. 4 is the oil circuit connection principle schematic of hydraulic station of the present invention under two mouthfuls of oil well use states.
In figure：1, holder；2, walking beam；3, horse head；4, oil cylinder；41, No.1 well oil cylinder；42, No. two well oil cylinders；5, high pressure oil
Pipe；6, hydraulic station；61, motor；62, oil pump；63, fuel tank；64, proportioning valve；641, No.1 well proportioning valve；642, No. two well ratios
Valve；65, three-position four-way valve；651, No.1 well three-position four-way valve；652, No. two well three-position four-way valves；7, PLC control cabinet；8, magnetic
Idler wheel；81, No.1 well magnetic rollers；82, No. two well magnetic rollers；9, rotary encoder；91, No.1 well rotary encoder；92、
No. two well rotary encoders.
Specific implementation mode
Embodiment 1：
Referring to Fig.1, Fig. 2 makes the present invention.The liquid drive beam pumping unit, including holder 1 and walking beam 2, the upper articulation of holder 1
Equipped with walking beam 2, the front end of walking beam 2 is fixed with horse head 3, and horse head 3 is connected with polished rod eye, the rear end of walking beam 2 by steel wire rope
Equipped with counterweight, it is characterised in that：The rear portion of walking beam 2 is hinged with the upper end of oil cylinder 4, and the lower end of oil cylinder 4 is hingedly arranged on ground
On pedestal, flexible by the piston rod of oil cylinder 4 drives the rear end of walking beam 2 to move up and down, to drive the donkey of 2 front end of walking beam
First 3 move up and down, and are finally reached the purpose of oil recovery；The upper/lower terminal of the oil cylinder 4 passes through high-pressure oil pipe 5 and hydraulic pressure respectively
It stands and 6 is connected, by hydraulic station 6 respectively by the upper/lower terminal conveying high-pressure hydraulic oil that two high-pressure oil pipes 5 are oil cylinder 4, with
Achieve the purpose that the piston rod of oil cylinder 4 is flexible, hydraulic station 6 is electrically connected by conducting wire with PLC control cabinet 7, and PLC control cabinet 7 is passed through
Control the working condition of hydraulic station 6.
Magnetic rollers 8 and rotary encoder 9, the circumference of magnetic rollers 8 are fixed in the upper end housing of the oil cylinder 4
Along being adsorbed on the piston rod outer wall of oil cylinder 4, the shaft of magnetic rollers 8 is fixedly connected with rotary encoder 9, rotary encoder 9
It is electrically connected with PLC control cabinet 7 by conducting wire, when the piston rod of oil cylinder 4 is flexible, magnetic rollers 8 can rotate therewith, to drive
Rotary encoder 9 works, and the length signals that piston rod stretches out is passed to PLC control cabinet 7, then by PLC control cabinet 7 according to piston
The length that bar stretches out determines the working condition of hydraulic station 6；The course of work of the piston rod of oil cylinder 4 is divided into three sections：Quickly start, is even
Speed runs and slowly bottoms out, and in the quick startup stage stretched out or retracted, PLC control cabinet 7 controls 6 quick fuel feeding of hydraulic station,
It traveling at the uniform speed the stage, the uniform fuel feeding of the meeting of hydraulic station 6 is slowly bottoming out the stage, is exactly that piston rod is stretched out or retracted to greatest extent,
At this point, hydraulic station 6 can slow down fuel feeding, piston rod is made slowly to reach the bottom of stroke, will not shaken, extends oil cylinder 4
Service life.
The hydraulic station 6, including motor 61, oil pump 62, fuel tank 63 and three-position four-way valve 65, motor 61 by conducting wire with
PLC control cabinet 7 is electrically connected, and the drive shaft of motor 61 is fixedly connected with the shaft of oil pump 62, and the oil inlet of oil pump 62 passes through oil pipe
It is connected with fuel tank 63, the oil outlet of oil pump 62 is connected by proportioning valve 64 with the P of three-position four-way valve 65 mouths, three-position four-way valve
65 A mouths and B mouthfuls are connected by high-pressure oil pipe 5 with the upper and lower both ends of oil cylinder 4 respectively, and the T mouths of three-position four-way valve 65 pass through oil
Pipe is connected with fuel tank 63, and PLC control cabinet 7 is electrically connected by conducting wire with three-position four-way valve 65 and proportioning valve 64 respectively.
The present invention the course of work be：PLC control cabinet 7 powers on, and starts motor 61, and oil pump 62 works, PLC control cabinet
A mouths of 7 control three-position four-way valves 65 gives the lower end fuel feeding of oil cylinder 4, at this point, rotary encoder 9 by the magnetic rollers 8 detected and
The relative position signal of piston rod passes to PLC control cabinet 7, and PLC control cabinet 7 is according to the opposite positions of magnetic rollers 8 and piston rod
Confidence number judges the extension elongation of piston rod, determines that the working condition of oil cylinder 4, PL switch boards 7 are suitable according to the working condition of oil cylinder 4
When adjust the open degree of proportioning valve 64, the piston rod of oil cylinder 4, which stretches out process and is divided into, quickly starts, travels at the uniform speed and slowly bottoms out three
A stage corresponds to the standard-sized sheet of proportioning valve 64, opens 2/3rds and open three kinds of opening degrees of one third respectively, at this point,
2 rear end of walking beam is risen, 3 downlink of horse head, realizes the down stroke of ground installations primary oil recovery process；
After the piston rod of oil cylinder 4 reaches maximum extension elongation, PLC control cabinet 7 controls the B mouths of three-position four-way valve 65 to oil cylinder 4
Upper end fuel feeding, the relative position signal of the magnetic rollers 8 detected and piston rod passes to PLC controls by rotary encoder 9
Cabinet 7, PLC control cabinet 7 judge the extension elongation of piston rod according to the relative position signal of magnetic rollers 8 and piston rod, determine oil
The working condition of cylinder 4, PLC control cabinet 7 adjust the open degree of proportioning valve 64, the work of oil cylinder 4 according to the working condition of oil cylinder 4 in due course
Stopper rod retraction process, which is also classified into, quickly to be started, travels at the uniform speed and slowly bottom out three phases, correspond to respectively proportioning valve 64 standard-sized sheet,
It opens 2/3rds and opens three kinds of opening degrees of one third, at this point, 2 rear end of walking beam falls, 3 uplink of horse head realizes ground
The upstroke of upper equipment primary oil recovery process；So cycle repeatedly, achievees the purpose that oil recovery.
Embodiment 2：
Referring to Fig.1, Fig. 3, Fig. 4 make the present invention.By taking the liquid drive beam pumping unit of two mouthfuls of oil well joint controls as an example.No.1 well and two
Number well is respectively according to the installation for carrying out equipment shown in Fig. 1.
The liquid drive beam pumping unit of more well joint controls, every mouthful of oil well is correspondingly arranged a beam pumping unit, described
Beam pumping unit includes holder 1 and walking beam 2, and the upper articulation of holder 1 is equipped with walking beam 2, and the front end of walking beam 2 is fixed with horse head
3, horse head 3 is connected with polished rod eye by steel wire rope, and the rear end of walking beam 2 is equipped with counterweight, the beam pumping unit on every mouthful of oil well
It all so installs, this is the prior art, it is characterised in that：After the walking beam 2 of the corresponding beam pumping unit of every mouthful of oil well
Portion is hinged with the upper end of corresponding oil cylinder 4, and the lower end of oil cylinder 4 is hingedly arranged on the pedestal on ground, passes through the piston of oil cylinder 4
The flexible of bar drives the rear end of walking beam 2 to move up and down, and to drive the horse head 3 of 2 front end of walking beam to move up and down, is finally reached and adopts
The purpose of oil, in this embodiment, the rear portion of the walking beam of the corresponding beam pumping unit of No.1 well and corresponding No.1 well oil
The upper end of cylinder 41 is hinged, and the lower end of No.1 well oil cylinder 41 is hingedly arranged on the pedestal on ground, and the corresponding beam type of No. two wells is taken out
The rear portion of the walking beam of oil machine is hinged with the upper end of corresponding No. two well oil cylinders 42, and the lower end of No. two well oil cylinders 42 is hingedly arranged
On the pedestal on ground；The upper/lower terminal of the corresponding oil cylinder of every mouthful of oil well 4 is connected by high-pressure oil pipe 5 with hydraulic station 6 respectively,
In this embodiment, the upper/lower terminal of No.1 well oil cylinder 41 is connected by high-pressure oil pipe with hydraulic station 6 respectively, No. two well oil
The upper/lower terminal of cylinder 42 is connected by high-pressure oil pipe with hydraulic station 6 respectively, and hydraulic station 6 passes through 7 electricity of conducting wire and PLC control cabinet
Connection controls the working condition of hydraulic station 6 by PLC control cabinet 7.
Magnetic rollers 8 and rotary encoder 9 are fixed in the upper end housing of the corresponding oil cylinder of every mouthful of oil well 4,
Along being adsorbed on the piston rod outer wall of oil cylinder 4, the shaft of magnetic rollers 8 is fixed with rotary encoder 9 to be connected the circumference of magnetic rollers 8
It connecing, all rotary encoders 9 are electrically connected by conducting wire with PLC control cabinet 7 respectively, in this embodiment, No.1 well oil cylinder 41
Upper end housing on be fixed with No.1 well magnetic rollers 81 and No.1 well rotary encoder 91, the circle of No.1 well magnetic rollers 81
All edges are adsorbed on the piston rod outer wall of No.1 well oil cylinder 41, shaft and the No.1 well rotary encoder of No.1 well magnetic rollers 81
91 are fixedly connected, and No.1 well rotary encoder 91 is electrically connected by conducting wire with PLC control cabinet 7；The upper end housing of No. two well oil cylinders 42
No. two well magnetic rollers 82 and No. two well rotary encoders 92 are fixed on body, the circumference of No. two well magnetic rollers 82 is along absorption
On the piston rod outer wall of No. two well oil cylinders 42, the shaft of No. two well magnetic rollers 82 is fixed with No. two well rotary encoders 92 to be connected
It connects, No. two well rotary encoders 92 are electrically connected by conducting wire with PLC control cabinet 7；No.1 well rotary encoder 91 and No. two well rotations
Turn encoder 92 and signal is passed into PLC control cabinet 7 respectively, then is determined according to the corresponding signal of every mouthful of oil well by PLC control cabinet 7
The working condition of hydraulic station 6.
The hydraulic station 6, including motor 61, oil pump 62 and fuel tank 63, motor 61 pass through 7 electricity of conducting wire and PLC control cabinet
Connection, the drive shaft of motor 61 are fixedly connected with the shaft of oil pump 62, and the oil inlet of oil pump 62 is connected by oil pipe with fuel tank 63
Logical, the corresponding oil cylinder of every mouthful of oil well 4 is all correspondingly arranged a proportioning valve 64 and a three-position four-way valve 65, the oil outlet of oil pump 62
It is connected respectively by the import of corresponding with each oil cylinder 4 proportioning valve of oil pipe 64, the outlet of proportioning valve 64 and compatible three
The P mouths of position four-way valve 65 are connected, and the upper and lower both ends of each oil cylinder 4 pass through high-pressure oil pipe and compatible 3-position 4-way respectively
The A mouths of valve 65 are connected with B mouthfuls, and the T mouths of all three-position four-way valves 65 are connected by oil pipe with fuel tank 63, PLC control cabinet 7
It is electrically connected respectively with all three-position four-way valves 65 and all proportioning valves 64 by conducting wire；In this embodiment, No.1 well oil
Cylinder 41 is correspondingly arranged No.1 well proportioning valve 641 and No.1 well three-position four-way valve 651, and No. two well oil cylinders 42 are correspondingly arranged No. two well ratios
Example valve 642 and No. two well three-position four-way valves 652, the oil outlet of oil pump 62 respectively by oil pipe and No.1 well proportioning valve 641 into
Mouth is connected with the import of No. two well proportioning valves 642, the P of the outlet and No.1 well three-position four-way valve 651 of No.1 well proportioning valve 641
Mouth is connected, and the outlet of No. two well proportioning valves 642 is connected with the P of No. two well three-position four-way valves 652 mouths, No.1 well oil cylinder 41
Upper and lower both ends are connected by high-pressure oil pipe with the A mouths of No.1 well three-position four-way valve 651 and B mouthfuls respectively, No. two well oil cylinders 42
Upper and lower both ends are connected by high-pressure oil pipe with the A of No. two well three-position four-way valves 652 mouths and B mouthfuls respectively, No.1 well 3-position 4-way
The T mouths of valve 651 and the T mouths of No. two well three-position four-way valves 652 are connected by oil pipe with fuel tank 63 respectively, and PLC control cabinet 7 is distinguished
Pass through 651, No. two well three-position four-way valves 652 of conducting wire and No.1 well three-position four-way valve, No.1 well proportioning valve 641 and No. two well ratios
Valve 642 is electrically connected.
The present invention the course of work be：PLC control cabinet 7 powers on, and starts motor 61, and oil pump 62 works, every mouthful of oil well
The relative position signal of the magnetic rollers 8 and piston rod that detect all is passed to PLC control cabinet 7 by corresponding rotary encoder 9,
PLC control cabinet 7 judges the piston rod of the oil cylinder 4 of every mouthful of oil well according to the signal that the corresponding rotary encoder of every mouthful of oil well 9 transmits
Extension elongation, determine the working condition of the oil cylinder 4 of every mouthful of oil well, PLC control cabinet 7 is suitable according to the working condition of each oil cylinder 4
When adjust the open degree of the respective compatible proportioning valve 64 of each oil cylinder 4, the piston rod of each oil cylinder 4 stretches out process and retracted
Journey, which is all divided into, quickly to be started, travels at the uniform speed and slowly bottom out three phases, is corresponded to the standard-sized sheet of compatible proportioning valve 64 respectively, is opened
It opens 2/3rds and opens three kinds of opening degrees of one third；PLC control cabinet 7 is passed according to the rotary encoder 9 of every mouthful of oil well
The signal come judges the working condition of each oil cylinder 4, then controls the working condition of corresponding three-position four-way valve 65, realizes every
The oil cylinder 4 of mouth oil well extends and retracts work；So cycle repeatedly, achievees the purpose that oil recovery.Reality in oil extraction in oil field region
In the application of border, the mode of more well joint controls may be used, joint control is carried out to three mouthfuls or more of the oil well more concentrated, to reduce equipment
Investment, improves the economic benefit of oil recovery.
Claims (6)
1. liquid drive beam pumping unit, including holder（1）And walking beam（2）, holder（1）Upper articulation be equipped with walking beam（2）, walking beam
（2）Front end be fixed with horse head（3）, horse head（3）It is connected with polished rod eye, walking beam by steel wire rope（2）Rear end be equipped with match
Weight, it is characterised in that：Walking beam（2）Rear portion and oil cylinder（4）Upper end it is hinged, oil cylinder（4）Lower end be hingedly arranged on ground
On pedestal；The oil cylinder（4）Upper/lower terminal pass through high-pressure oil pipe respectively（5）With hydraulic station（6）It is connected, hydraulic station（6）
Pass through conducting wire and PLC control cabinet（7）Electrical connection.
2. liquid drive beam pumping unit according to claim 1, it is characterised in that：The oil cylinder（4）Upper end housing
On be fixed with magnetic rollers（8）And rotary encoder（9）, magnetic rollers（8）Circumference along being adsorbed on oil cylinder（4）Piston rod
On outer wall, magnetic rollers（8）Shaft and rotary encoder（9）It is fixedly connected, rotary encoder（9）It is controlled by conducting wire and PLC
Cabinet processed（7）Electrical connection.
3. liquid drive beam pumping unit according to claim 1, it is characterised in that：The hydraulic station（6）, including motor
（61）, oil pump（62）, fuel tank（63）And three-position four-way valve（65）, motor（61）Pass through conducting wire and PLC control cabinet（7）Electrical connection,
Motor（61）Drive shaft and oil pump（62）Shaft be fixedly connected, oil pump（62）Oil inlet pass through oil pipe and fuel tank（63）Phase
Connection, oil pump（62）Oil outlet pass through proportioning valve（64）With three-position four-way valve（65）P mouths be connected, three-position four-way valve（65）
A mouths and B mouthfuls pass through high-pressure oil pipe respectively（5）With oil cylinder（4）Upper and lower both ends be connected, three-position four-way valve（65）T mouths it is logical
Cross oil pipe and fuel tank（63）It is connected, PLC control cabinet（7）Pass through conducting wire and three-position four-way valve respectively（65）And proportioning valve（64）Electricity
Connection.
4. the liquid drive beam pumping unit of the joint control of well more than, every mouthful of oil well are correspondingly arranged a beam pumping unit, the walking beam
Formula pumping unit includes holder（1）And walking beam（2）, holder（1）Upper articulation be equipped with walking beam（2）, walking beam（2）Front end fix set
There is horse head（3）, horse head（3）It is connected with polished rod eye, walking beam by steel wire rope（2）Rear end be equipped with counterweight, it is characterised in that：Often
The walking beam of the corresponding beam pumping unit of mouth oil well（2）Rear portion and corresponding oil cylinder（4）Upper end it is hinged, oil cylinder（4）'s
Lower end is hingedly arranged on the pedestal on ground；The corresponding oil cylinder of every mouthful of oil well（4）Upper/lower terminal pass through high-pressure oil pipe respectively
（5）With hydraulic station（6）It is connected.
5. the liquid drive beam pumping unit of more well joint controls according to claim 4, it is characterised in that：Every mouthful of oil well
Corresponding oil cylinder（4）Upper end housing on be fixed with magnetic rollers（8）And rotary encoder（9）, magnetic rollers（8）Circumference
Edge is adsorbed on oil cylinder（4）Piston rod outer wall on, magnetic rollers（8）Shaft and rotary encoder（9）It is fixedly connected, it is all
Rotary encoder（9）Pass through conducting wire and PLC control cabinet respectively（7）Electrical connection.
6. the liquid drive beam pumping unit of more well joint controls according to claim 4, it is characterised in that：The hydraulic station
（6）, including motor（61）, oil pump（62）And fuel tank（63）, motor（61）Pass through conducting wire and PLC control cabinet（7）Electrical connection, motor
（61）Drive shaft and oil pump（62）Shaft be fixedly connected, oil pump（62）Oil inlet pass through oil pipe and fuel tank（63）It is connected
It is logical, the corresponding oil cylinder of every mouthful of oil well（4）All it is correspondingly arranged a proportioning valve（64）With a three-position four-way valve（65）, oil pump（62）
Oil outlet pass through oil pipe and each oil cylinder respectively（4）Corresponding proportioning valve（64）Import be connected, proportioning valve（64）Go out
Mouth and compatible three-position four-way valve（65）P mouths be connected, each oil cylinder（4）Upper and lower both ends pass through high-pressure oil pipe respectively
With compatible three-position four-way valve（65）A mouths be connected with B mouthfuls, all three-position four-way valves（65）T mouths by oil pipe with
Fuel tank（63）It is connected, PLC control cabinet（7）Pass through conducting wire and all three-position four-way valves respectively（65）With all proportioning valves
（64）Electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305976.8A CN108301812B (en) | 2018-04-08 | 2018-04-08 | Hydraulic drive beam pumping unit and multi-well combined control hydraulic drive beam pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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