CN202391390U - Device for regulating stroke frequency and balance of pumping unit in real time - Google Patents
Device for regulating stroke frequency and balance of pumping unit in real time Download PDFInfo
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- CN202391390U CN202391390U CN2011205236243U CN201120523624U CN202391390U CN 202391390 U CN202391390 U CN 202391390U CN 2011205236243 U CN2011205236243 U CN 2011205236243U CN 201120523624 U CN201120523624 U CN 201120523624U CN 202391390 U CN202391390 U CN 202391390U
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Abstract
The utility model discloses a device for regulating stroke frequency and balance of a pumping unit in real time, which belongs to the field of oilfield digitalized construction and management. A convention parameter regulating method is changed, problems of hysteresis of parameter regulation, high labor intensity of staff and incapability of realizing potentiality of oilfields to the utmost extent are solved, oilfield productivity is improved, and the oilfield digitalized management level is increased. On the basis of indicator diagram and electric parameter data acquired in real time, stroke frequency is optimized by the device according to system efficiency. Revolution speed of a motor is controlled by a digitalized pumping unit integrated control device so that stepless regulation of stroke frequency is achieved. The balance degree is calculated according to current and power acquired in real time, the balance of the pumping unit is controlled by a lead-screw balance regulator, and accordingly balance regulation of the pumping unit is achieved, the pumping unit is kept running with the optimum production parameters, and potentiality of oilfields can be functioned to the utmost extent.
Description
Technical field
The utility model relates to oil field digital Construction, management domain, particularly a kind of oil pumper jig frequency, balance device of adjustment in real time that is used for.
Background technology
Oil pumper is a kind of machinery equipment of recover petroleum, is commonly called as " machine of kowtowing ", makes oil go out well through the way of pressurizeing.Wherein, " jig frequency " is meant in rod-pumped well, the number of times that the sucker rod per minute pumps.
Oil pumper jig frequency traditionally, the method for adjustment of balance are carried out according to following steps: at first, need the employee to arrive field measurement oil well merit figure and electric current; Then,, oil pumper whether reasonable balance whether according to test merit figure and current conditions analysis and judgement production well proration; Through changing belt pulley jig frequency is adjusted again, balance of well pumping unit is adjusted through the increase and decrease balance weight.
Receive the restriction of the method for adjustment of traditionally oil pumper jig frequency, balance; This method exists that test is discontinuous, the analyzing and processing cycle long, staff labor intensity is big, inefficiency, can't realize the defective of stepless accent ginseng; And human and material resources, financial resources expense are big, problems such as security risk height.
The utility model content
The test that exists in the above-mentioned prior art is discontinuous in order to overcome, the analyzing and processing cycle is long, staff labor intensity is big, inefficiency, can't realize stepless accent ginseng; And human and material resources, financial resources expense are big; Problems such as security risk height, the utility model embodiment provides a kind of oil pumper jig frequency, balance device of adjustment in real time that is used for.Said technical scheme is following:
A kind of oil pumper jig frequency, balance device of adjustment in real time that is used for, said device comprises harvester and digitlization oil pumper integrated control device and leading screw balancing device when power graph method oil well metering device, electrical quantity are factually, wherein,
Said power graph method oil well metering device is installed on the said oil pumper; Said power graph method oil well metering device is used for the operating mode of the said oil pumper of round-the-clock monitoring; Gather an indicator card in per ten minutes, and carry out computational analysis, obtain real-time liquid measure of oil well and operating mode diagnostic result;
Said electrical quantity factually the time harvester link to each other with said oil pumper; Said electrical quantity factually the time harvester be used for gathering parameters such as three-phase current, voltage, active power, reactive power, power factor in real time, and send acquisition parameter to said power graph method oil well metering device;
Said digitlization oil pumper integrated control device links to each other with said oil pumper; Said digitlization oil pumper integrated control device carries into execution a plan through the jig frequency adjustment that receives said power graph method oil well metering device and send; The electric machine frequency of adjustment oil pumper is realized the adjustment automatically in real time of oil pumper jig frequency;
Said leading screw balancing device is arranged on the said oil pumper; The balance adjustment scheme that the setting of said leading screw balancing device is sent through receiving said power graph method oil well metering device; Regulate said leading screw balancing device, realize the adjustment automatically in real time of balance of well pumping unit.
Particularly, said leading screw balancing device comprises control system, clamped beam, bearing, leading screw, governor motion, rotating beam, balance weight, wherein; Said control system links to each other with the walking beam of said oil pumper through linkage; One end of said walking beam is connecting horse head, and the other end of said walking beam is being fixedly connected said clamped beam, and said clamped beam and said walking beam parallel; Said bearing is installed on the said clamped beam; Said bearing is connected with said governor motion through axle, and said leading screw passes said governor motion and is meshed with it, and the end of said leading screw is connecting an end of said rotating beam through pivot pin; The middle part of said rotating beam links to each other with the other end of said clamped beam through rotating shaft, and the other end of said rotating beam is being fixedly connected said balance weight.
Particularly, said governor motion comprises motor, reducer and nut, and the output shaft of said motor connects said reducer, and said reducer connects said nut through gear, and said leading screw passes nut and is connected with nut thread.
Particularly, said balance weight is columniform balance weight.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
Compare prior art, the said device of the utility model embodiment through merit figure, the electrical quantity certificate of real-time collection, is optimized jig frequency according to system effectiveness, through digitlization oil pumper integrated control device motor speed is controlled, and realizes stepless jig frequency adjustment; Electric current, the power calculation degree of balance by real-time acquisition; Through leading screw balancing device balance of well pumping unit is controlled; Thereby realize the adjustment of balance of well pumping unit, and, constantly jig frequency peace weighing apparatus parameter is adjusted through continuous self study process; Make oil pumper remain under the Optimal Production parameter and move, effectively solve the problem of transferring ginseng hysteresis quality, staff labor intensity height, can't bring into play oil well potential to greatest extent.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the FB(flow block) of the said oil pumper jig frequency of the utility model embodiment, balance real-time intelligent method of adjustment;
Fig. 2 is that the ginseng schematic diagram is transferred in the electrodeless frequency conversion of the said oil pumper of the utility model embodiment;
Fig. 3 is the overall schematic of the said device of the utility model embodiment;
Fig. 4 is the structural representation of the said leading screw bascule of the utility model embodiment.
Among the figure:
100 ' leading screw balancing device,
1 rotating beam, 2 rotating shafts, 3 governor motions, 4 bearings, 5 leading screws, 6 clamped beams, 7 walking beams, 8 horse heads, 9 control systems, 10 balance weights;
200 ' electrical quantity harvester factually the time;
300 ' digitlization oil pumper integrated control device;
400 ' power graph method oil well metering device, 40 load transducers, 41 displacement transducers, 42 well site RTU, 43 wireless bridges, 44 stations control Industrial Personal Computer (IPC).
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model embodiment is done to describe in detail further below.
Embodiment 1
As shown in Figure 1, the utility model embodiment provides a kind of oil pumper jig frequency, balance real-time intelligent method of adjustment, and said method comprises:
If step 500 is the real system efficiency eta
1Be superior to given system effectiveness η
0, just virtual condition parameter at this moment is kept at benchmark database;
Wherein, system effectiveness is the ratio of active power and power input to machine.
The said method of the utility model embodiment; Change traditional accent ginseng mode; Solve the problem of transferring ginseng hysteresis quality, staff labor intensity height, can't bring into play oil well potential to greatest extent; Said method has been measured real time data to the real-time analysis of oil pumper duty, to the parameter intelligent adjustment through utilizing, and has realized that oil pumper works under reasonable working system, brings into play oil well potential to greatest extent; Reach the fine-grained management of oil well, help improving oil well production efficient, promote oil well digital management level.
Particularly, said step 100 specifically comprises:
Round-the-clockly incessantly the operation conditions of oil well in institute's area under one's jurisdiction piece is monitored in real time, gathered the merit diagram data in real time in per ten minutes, and carry out the step that the production fluid amount is calculated;
And, set up the electrical quantity data collecting system, gather parameters such as three-phase current, voltage, active power, reactive power, power factor (PF) in real time, the mass data of gathering in real time is stored in the step in the private database.
Particularly, the jig frequency of oil pumper is adjusted according to formula (4) in the said step 600:
Formula (1) pump efficiency and jig frequency relation,
Each symbol implication is following in the formula (1):
η
Pump efficiency---actual pump efficiency, the i.e. ratio of actual production fluid amount of oil well pump and theoretical production fluid amount;
Q
Real---actual production fluid amount;
D---pump size;
S---stroke;
N---jig frequency;
Formula (2) jig frequency and electric machine frequency relation,
Each symbol implication is following in the formula (2):
The average jig frequency of oil well when n---oil pumper is produced, r/min;
n
0---motor mean speed, r/min;
i
Subtract---the oil pumping unit reduction gearbox resultant gear ratio;
d
1---motor belt wheel diameter, mm;
D---reduction box big belt pulley diameter, mm;
Formula (3) motor speed,
Each symbol implication is following in the formula (3):
The frequency of f---motor;
S---motor slip ratio;
P---motor logarithm;
Get formula (4) by formula (2), (3):
Each symbol implication is following in the formula (4):
The average jig frequency of oil well when n---oil pumper is produced, r/min;
The frequency of f---motor;
S---motor slip ratio;
d
1---motor belt wheel diameter, mm;
P---motor logarithm;
i
Subtract---the oil pumping unit reduction gearbox resultant gear ratio;
D---reduction box big belt pulley diameter, mm.
Can be seen that by formula (4) oil pumper jig frequency and pumping-unit motor frequency are proportional, therefore can change electric machine frequency through frequency conversion adjusts the oil pumper jig frequency, thereby realizes the Real-time and Dynamic adjustment of oil pumper parameter, reaches the efficient and rational exploitation of oil well.
As shown in Figure 2; The utility model embodiment is according to the relation of jig frequency in the formula (4) with electric machine frequency, can stepless adjustment electric machine frequency through frequency conversion, thus realizing that stepless frequency conversion is transferred joins; And then through digitlization oil pumper integrated control device; According to the self-learning optimization result, adjust the oil well jig frequency in real time, improve the ageing of oilwell parameter adjustment.
Particularly, the balance of oil pumper in the said step 600 is meant and works as the current balance type degree beyond 80%～120% that the power-balance degree need be adjusted at≤50% o'clock, wherein,
More specifically; Gather through the electricity ginseng, can obtain power and current data simultaneously, by up-down stroke mean power and up-down stroke maximum current; Can obtain the balance of well pumping unit degree in real time; Can adjust balance of well pumping unit according to the degree of balance, make that oil pumper can be energy-conservation, can guarantee safe operation again.
When the current balance type degree in 80%～120% (SY/T 5044), the power-balance degree is thought balance when＞50% (Q/SY 1233), otherwise need adjust.Through leading screw balancing device, can adjust the equilibrium state of oil pumper in real time according to given adjustment parameter.
The utility model embodiment through merit figure, the electrical quantity certificate of real-time collection, optimizes jig frequency according to system effectiveness, through digitlization oil pumper integrated control device motor speed is controlled, and realizes stepless jig frequency adjustment; By electric current, the power calculation degree of balance of real-time acquisition, control intelligent leading screw balancing device through the digitlization oil pumper balance of well pumping unit is controlled, thus the adjustment of realization balance of well pumping unit; And through continuous self study process, constantly jig frequency peace weighing apparatus parameter is adjusted, make oil pumper remain under the Optimal Production parameter and move.Therefore, said this method of the utility model helps improving oil well production efficient, promotes oil well digital management level.
Embodiment 2
As shown in Figure 3; The utility model embodiment also provides a kind of device that is applied to said oil pumper jig frequency, balance real-time intelligent method of adjustment; Said device comprises harvester 200 ' and digitlization oil pumper integrated control device 300 ' and leading screw balancing device 100 ' when power graph method oil well metering device 400 ', electrical quantity are factually; Wherein, power graph method oil well metering device 400 ', electrical quantity factually the time harvester 200 ' be prior art with digitlization oil pumper integrated control device 300 ';
Said power graph method oil well metering device 400 ' is installed on the said oil pumper; Said power graph method oil well metering device 400 ' is used for the operating mode of the said oil pumper of round-the-clock monitoring; Gather an indicator card in per ten minutes, and carry out computational analysis, obtain real-time liquid measure of oil well and operating mode diagnostic result;
Particularly; Said power graph method oil well metering device 400 ' comprises load transducer 40, displacement transducer 41, well site RTU 42, wireless bridge 43, stand control Industrial Personal Computer (IPC) 44 and oil well measurement analysis software composition; Load transducer 40 is installed on the well head polished rod eye; Displacement transducer 41 is installed on the walking beam 7 below oil pumpers, and well site RTU 42 is installed in vertical rod upper end, well site with wireless bridge 43, and the control Industrial Personal Computer (IPC) 44 of standing is installed in website;
The operating principle of said power graph method oil well metering device 400 ' is:
1. the load transducer 40 that passes through and displacement transducer 41 pairs of rod-pumped well sucker rods load and displacement measure;
2. load and displacement signal reach well site RTU 42 through wireless mode, and again through well site wireless bridge 43, the reception antenna that image data is reached station control Industrial Personal Computer (IPC) 44 with the form of ripple carries out data and receives;
3. the wireless server of controlling Industrial Personal Computer (IPC) 44 through standing converts the signal that receives into data signal and reaches computer in the station; The site customers end calculates the production fluid amount in real time, analyzes operating mode and the result is uploaded to oil well condition dynamic analysis system server synchronously, through Web release process real-time release;
Said electrical quantity factually the time harvester 200 ' link to each other with said oil pumper; Said electrical quantity factually the time harvester 200 ' be used for gathering parameters such as three-phase current, voltage, active power, reactive power, power factor in real time, and send acquisition parameter to said power graph method oil well metering device 400 '; Electrical quantity factually the time harvester 200 ' be installed in oil pumper side correct position.
Said digitlization oil pumper integrated control device 300 ' links to each other with said oil pumper; Said digitlization oil pumper integrated control device 300 ' carries into execution a plan through the jig frequency adjustment that the said power graph method oil well metering device 400 ' of reception sends; The electric machine frequency of adjustment oil pumper is realized the adjustment automatically in real time of oil pumper jig frequency;
Said leading screw balancing device 100 ' is arranged on the said oil pumper; Said leading screw balancing device 100 ' is provided with through receiving the balance adjustment scheme that said power graph method oil well metering device 400 ' sends; Regulate said leading screw balancing device 100 ', realize the adjustment automatically in real time of balance of well pumping unit.
The said device of the utility model embodiment through merit figure, the electrical quantity certificate of real-time collection, is optimized jig frequency according to system effectiveness, through digitlization oil pumper integrated control device 300 ' motor speed is controlled, and realizes stepless jig frequency adjustment; Electric current, the power calculation degree of balance by real-time acquisition; Through leading screw balancing device 100 ' balance of well pumping unit is controlled; Thereby realize the adjustment of balance of well pumping unit, and, constantly jig frequency peace weighing apparatus parameter is adjusted through continuous self study process; Make oil pumper remain under the Optimal Production parameter and move, effectively solve the problem of transferring ginseng hysteresis quality, staff labor intensity height, can't bring into play oil well potential to greatest extent.
As shown in Figure 4, particularly, said leading screw balancing device 100 ' comprises control system 9, clamped beam 6, bearing 4, leading screw 5, governor motion 3, rotating beam 1, balance weight 10; Wherein, said control system 9 links to each other with the walking beam 7 of said oil pumper through linkage, and an end of said walking beam 7 is connecting horse head 8; The other end of said walking beam 7 is being fixedly connected said clamped beam 6, and in this example, the end of clamped beam 6 adopts butt-welded mode to be fixedly connected with the end of walking beam 7; Said clamped beam 6 parallels with said walking beam 7, and said bearing 4 is installed on the said clamped beam 6, and said bearing 4 is connected with said governor motion 3 through axle; Said leading screw 5 passes said governor motion 3 and is meshed with it, and the end of said leading screw 5 is connecting an end of said rotating beam 1 through pivot pin, during practical implementation; End at rotating beam 1 is provided with axis hole, and pivot pin is set in the axis hole, and pivot pin passes the pin hole of leading screw 5 ends; Make an end of rotating beam 1 be connected with leading screw 5 through pivot pin, the middle part of said rotating beam 1 links to each other through the other end of rotating shaft 2 with said clamped beam 6, particularly; In this example, be provided with an axis hole, rotating shaft 2 is installed in the axis hole at the other end of clamped beam 6; The middle part of rotating beam 1 is passed in rotating shaft 2, and the other end of said rotating beam 1 is being fixedly connected said balance weight 10.
Referring to Fig. 4, particularly, said governor motion 3 comprises motor, reducer and nut, and the output shaft of said motor connects said reducer, and said reducer connects said nut through gear, and said leading screw 5 passes nut and is connected with nut thread.
Referring to Fig. 4, particularly, said balance weight 10 is columniform balance weight.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (4)
1. be used for oil pumper jig frequency, the balance device of adjustment in real time, it is characterized in that said device comprises harvester and digitlization oil pumper integrated control device and leading screw balancing device when power graph method oil well metering device, electrical quantity are factually, wherein,
Said power graph method oil well metering device is installed on the said oil pumper; Said power graph method oil well metering device is used for the operating mode of the said oil pumper of round-the-clock monitoring; Gather an indicator card in per ten minutes, and carry out computational analysis, obtain real-time liquid measure of oil well and operating mode diagnostic result;
Said electrical quantity factually the time harvester link to each other with said oil pumper; Said electrical quantity factually the time harvester be used for gathering parameters such as three-phase current, voltage, active power, reactive power, power factor in real time, and send acquisition parameter to said power graph method oil well metering device;
Said digitlization oil pumper integrated control device links to each other with said oil pumper; Said digitlization oil pumper integrated control device carries into execution a plan through the jig frequency adjustment that receives said power graph method oil well metering device and send; The electric machine frequency of adjustment oil pumper is realized the adjustment automatically in real time of oil pumper jig frequency;
Said leading screw balancing device is arranged on the said oil pumper; The balance adjustment scheme that the setting of said leading screw balancing device is sent through receiving said power graph method oil well metering device; Regulate said leading screw balancing device, realize the adjustment automatically in real time of balance of well pumping unit.
2. device as claimed in claim 1 is characterized in that, said leading screw balancing device comprises control system, clamped beam, bearing, leading screw, governor motion, rotating beam, balance weight; Wherein, said control system links to each other with the walking beam of said oil pumper through linkage, and an end of said walking beam is connecting horse head; The other end of said walking beam is being fixedly connected said clamped beam; Said clamped beam and said walking beam parallel, and said bearing is installed on the said clamped beam, and said bearing is connected with said governor motion through axle; Said leading screw passes said governor motion and is meshed with it; The end of said leading screw is connecting an end of said rotating beam through pivot pin, and the middle part of said rotating beam links to each other with the other end of said clamped beam through rotating shaft, and the other end of said rotating beam is being fixedly connected said balance weight.
3. device as claimed in claim 2; It is characterized in that said governor motion comprises motor, reducer and nut, the output shaft of said motor connects said reducer; Said reducer connects said nut through gear, and said leading screw passes nut and is connected with nut thread.
4. like the described device of each claim of claim 1-3, it is characterized in that said balance weight is columniform balance weight.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205236243U CN202391390U (en) | 2011-12-14 | 2011-12-14 | Device for regulating stroke frequency and balance of pumping unit in real time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205236243U CN202391390U (en) | 2011-12-14 | 2011-12-14 | Device for regulating stroke frequency and balance of pumping unit in real time |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103161430A (en) * | 2011-12-14 | 2013-06-19 | 中国石油天然气股份有限公司 | Pumping unit jig frequency, balance real-time capacity adjusting method and device thereof |
| CN103184854A (en) * | 2013-04-28 | 2013-07-03 | 哈尔滨索菲电气技术有限公司 | Self-balancing digital pumping unit and working method |
| CN103488132A (en) * | 2013-07-12 | 2014-01-01 | 哈尔滨世名达科技发展有限公司 | Automatic optimized parameter-tuning method based on indicator diagram |
| CN104453791A (en) * | 2013-09-17 | 2015-03-25 | 中国石油天然气股份有限公司 | Balance control device and method for walking-beam type pumping unit |
| CN104533382A (en) * | 2014-12-16 | 2015-04-22 | 哈尔滨斯特凯峰电子有限公司 | Method for determining indicator diagram of electrical parameters of rod-pumped well |
| CN105068463A (en) * | 2015-06-29 | 2015-11-18 | 鞍山新兴石油科技有限公司 | Pumping unit digitized transformation method |
| CN105093930A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Optimum stroke process suitable for super-low permeability reservoir digital oil pumping unit |
| CN105134139A (en) * | 2015-09-07 | 2015-12-09 | 西南石油大学 | Crank balance automatic adjusting device of beam-pumping unit |
| CN112946470A (en) * | 2021-02-04 | 2021-06-11 | 东北大学 | Soft measurement method and system for steam throughput cycle conversion time of sucker rod pumping well |
| CN114718514A (en) * | 2021-01-06 | 2022-07-08 | 中国石油化工股份有限公司 | Beam-pumping unit direct current bus group control algorithm based on power weighted prediction |
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2011
- 2011-12-14 CN CN2011205236243U patent/CN202391390U/en not_active Expired - Fee Related
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| CN103161430A (en) * | 2011-12-14 | 2013-06-19 | 中国石油天然气股份有限公司 | Pumping unit jig frequency, balance real-time capacity adjusting method and device thereof |
| CN103161430B (en) * | 2011-12-14 | 2016-08-31 | 中国石油天然气股份有限公司 | Beam-pumping unit jig frequency, balance real-time intelligent method of adjustment |
| CN103184854B (en) * | 2013-04-28 | 2016-05-18 | 哈尔滨索菲电气技术有限公司 | The digital oil pumper of self-balance type and method of work |
| CN103184854A (en) * | 2013-04-28 | 2013-07-03 | 哈尔滨索菲电气技术有限公司 | Self-balancing digital pumping unit and working method |
| CN103488132A (en) * | 2013-07-12 | 2014-01-01 | 哈尔滨世名达科技发展有限公司 | Automatic optimized parameter-tuning method based on indicator diagram |
| CN104453791A (en) * | 2013-09-17 | 2015-03-25 | 中国石油天然气股份有限公司 | Balance control device and method for walking-beam type pumping unit |
| CN105093930B (en) * | 2014-05-14 | 2018-11-16 | 中国石油天然气股份有限公司 | A kind of suitable Oil in Super-low Permeability oil reservoir digitlization pumping unit optimum jig frequency process |
| CN105093930A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Optimum stroke process suitable for super-low permeability reservoir digital oil pumping unit |
| CN104533382A (en) * | 2014-12-16 | 2015-04-22 | 哈尔滨斯特凯峰电子有限公司 | Method for determining indicator diagram of electrical parameters of rod-pumped well |
| CN104533382B (en) * | 2014-12-16 | 2017-02-22 | 哈尔滨斯特凯峰电子有限公司 | Method for determining indicator diagram of electrical parameters of rod-pumped well |
| CN105068463A (en) * | 2015-06-29 | 2015-11-18 | 鞍山新兴石油科技有限公司 | Pumping unit digitized transformation method |
| CN105134139A (en) * | 2015-09-07 | 2015-12-09 | 西南石油大学 | Crank balance automatic adjusting device of beam-pumping unit |
| CN114718514A (en) * | 2021-01-06 | 2022-07-08 | 中国石油化工股份有限公司 | Beam-pumping unit direct current bus group control algorithm based on power weighted prediction |
| CN114718514B (en) * | 2021-01-06 | 2024-05-17 | 中国石油化工股份有限公司 | Beam-pumping unit direct current busbar group control algorithm based on power weighted prediction |
| CN112946470A (en) * | 2021-02-04 | 2021-06-11 | 东北大学 | Soft measurement method and system for steam throughput cycle conversion time of sucker rod pumping well |
| CN112946470B (en) * | 2021-02-04 | 2022-06-17 | 东北大学 | Soft measurement method and system for steam throughput cycle time of sucker-rod pumping well |
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