CN101498296A - Measuring means for oilfield oil pump indicating diagram without load transducer - Google Patents
Measuring means for oilfield oil pump indicating diagram without load transducer Download PDFInfo
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- CN101498296A CN101498296A CNA2008100141362A CN200810014136A CN101498296A CN 101498296 A CN101498296 A CN 101498296A CN A2008100141362 A CNA2008100141362 A CN A2008100141362A CN 200810014136 A CN200810014136 A CN 200810014136A CN 101498296 A CN101498296 A CN 101498296A
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Abstract
The invention relates to a method for measuring a indicating diagram of an oil filed oil extractor without a load sensor, which comprises the following steps: the indicating diagram of an oil filed oil extractor is used for measuring and calculating a self machine of an oil extractor, a CPU controls the operating state of a transducer through a control unit, the transducer controls a main motor of the oil extractor according to signals transmitted by the CPU, one side of a balancing weight block of a crank device of the oil extractor is provided with a displacement sensor which can transmit a displacement signal to the CPU through a signal collecting unit, the operating data of the collection transducer are transmitted to the CPU, the CPU carries out coordinate treatment for the displacement signal and the operating data of the collection transducer to obtain a main motor indicating diagram, the CPU carries out vectorial resultant treatment for the main motor indicating diagram and the oil extractor indicating diagram to obtain a feed rod indicating diagram of an oil extractor feed rod, and the feed rod indicating diagram comprises displacement data and load data. In the invention, load sensors, pressure sensors, and the like do not need to be arranged on the oil extractor feed rod or a walking beam, and the like, and the invention can accurately and reliably measure the indicating diagram of the oil extractor without stopping unloading, and the like.
Description
Technical field
The invention provides a kind of method of measurement that need not the means for oilfield oil pump indicating diagram of load transducer, belong to the fields of measurement of means for oilfield oil pump indicating diagram.
Background technique
Calculate and draw means for oilfield oil pump indicating diagram and need measure the shift value of oil-extractor polish-rod and the load value of each shift value.The oil field has the pumping-unit workdone graphic measuring device now, is the independent measurement system that separates with pumping unit.When measuring pumping-unit workdone graphic; measure behind the devices such as needs above installed load sensor shutdown half an hour and displacement transducer; promptly measure the shift value of polished rod, measure load value, send into processing unit processes output indicator diagram then with load transducer with displacement transducer.Use this class methods, load transducer generally is installed on the polished rod of pumping unit, and this type of sensor is more accurate, but damages easily, and what also have is installed on the walking beam, and this type of sensor is more durable, but degree of accuracy is lower.Before detecting in such a way, it is long to stop well setup time, directly influence oil well output, data processing time after the detection is long, the time of drawing indicator diagram is long, situations such as distribution box, burning motor often take place to burn in the promptness of direct influence to there being the problem oil well to take measures, and directly influence the oil well ordinary production when serious.In order to address this problem, people have developed permanent setting type indicator diagram measurement instrument, its method is generally the work indicator sensor is placed between pumping unit rope hanger two clamping plate for a long time, cause measurement error because deformation easily takes place sensor for a long time under the clamping plate stress, therefore general sensor uses just needs replacing and carry out verification in about 3 months, so just cause permanent setting type work indicator testing cost higher, can not further effectively promote.At above-mentioned variety of problems,, can non-stop-machinely test though also occurred the method and apparatus of some installed load sensors at present; but owing to all need the installed load sensor; therefore still exist loading and unloading inconvenient, be prone to accidents, and shortcoming such as testing apparatus is impaired.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of simple and easy, convenient, need not the method for measurement of the means for oilfield oil pump indicating diagram of load transducer accurately, reliably.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method of measurement that need not the means for oilfield oil pump indicating diagram of load transducer, comprise and measure the pumping-unit workdone graphic that calculates pumping unit self machinery, CPU is by the running state of control unit control frequency variator, the SC sigmal control pumping unit master motor that frequency variator sends according to CPU, it is characterized in that: crank device balancing weight one side at pumping unit is provided with displacement transducer, displacement transducer is delivered to CPU with displacement signal by signal gathering unit, the service data of gathering frequency variator is delivered to CPU, CPU carries out coordinate to the service data of displacement signal and collection frequency variator to be handled, obtain main motor indicator diagram, CPU carries out the synthetic processing of vector with main motor indicator diagram and pumping-unit workdone graphic, obtain the polished rod indicator diagram that comprises displacement data and load data of oil-extractor polish-rod, and show or transmission.
It is transverse axis that described coordinate is treated to the displacement, is that the longitudinal axis is set up system of coordinates with load.Load with all corresponding displacements in each stroke is drawn point, line, promptly obtains indicator diagram.
The service data of described collection frequency variator is delivered to the communication terminal that CPU is the communication terminal connection CPU of frequency variator, realizes data transmission by adopting the RS-485 communication modes.
Described vector is synthetic to be treated to the common prior art that industry technician is grasped.
Described CPU is provided with touch screen display, realizes the data input and output by touch screen display.
Described CPU is provided with wireless transport module, and the preferred GPRS wireless transport module of wireless transport module also can be used the cdma wireless transmission module.The convenient remote-wireless of realizing transmits.The indicator diagram signal of many pumping units is delivered to main control system by wireless transport module, convenient centralized management.
Described displacement transducer preferably adopts Hall transducer, also can adopt backguy, near switch, angle transducer.
Principle of the present invention: pumping unit can obtain the indicator diagram of a pumping unit self according to its mechanical structure, constituent element etc. self parameter.During oil pumping, pumping unit master machine operation, the change in displacement of corresponding pumping unit, the output signal of frequency variator also changes.CPU obtains the frequency variator output signal, and change into the load and the corresponding relation of displacement, to carry out vector synthetic with the indicator diagram of pumping unit self then, load with all corresponding displacements in each stroke is drawn point, line obtains a closed ring curve, be the indicator diagram of polished rod in the pumping unit running, store, transmit by the touch screen display demonstration or by wireless transport module.
A kind of beneficial effect that method of measurement had that need not the means for oilfield oil pump indicating diagram of load transducer of the present invention is: by using the Frequency Converter Control motor; and then control pumping unit work; realization need not to install devices such as any load transducer, pressure transducer on positions such as oil-extractor polish-rod or walking beam; need not to shut down unloading etc., can measure the indicator diagram of pumping unit accurately, reliably.This test method is not owing to there is the maneuvering load sensor, directly avoided the stop pumping problem, the problems such as damage of the motor control assembly that causes because of frequent start-stop pumping unit have been reduced, and solved permanent setting type sensor sensor in production test procedure and deformation easily takes place cause the test result deviation, and the high shortcoming of maintenance cost, the pot life and the sense cycle of testing apparatus have so just been prolonged greatly, reduced the instrument maintenance, the workload of safeguarding, reduced the production test cost greatly, under the production status of not stop pumping of pumping unit, obtained oil-extractor polish-rod indicator diagram information, and do not influenced the manufacturing efficiency of pumping well near truth.In addition, by touch screen display is set, can show the indicator diagram that records in real time, carry out physical control easily, also, carry out communication, data are handled, analyzed and judge by microcomputer by wireless mode and Surveillance center by the GPRS wireless transport module is set, in time understand the operation situation of pumping unit, and make the operation of instruction telecontrol pumping unit with this.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described:
As shown in Figure 1, ac power supply provides the power supply of DC power supplier.DC power supplier provides DC electrical source.CPU is by the output of control unit control frequency variator, thereby the startup of control pumping unit master motor, stops and running state such as rotating speed.The data output end of frequency variator connects the signal input part of CPU, and the service data of frequency variator is delivered to CPU.The output data of frequency variator comprises electric current, voltage, moment, frequency, power etc.The output terminal of displacement transducer that is arranged on crank device balancing weight one side of pumping unit connects the signal input part of CPU by signal gathering unit, and displacement signal is delivered to CPU by signal gathering unit.
The service data of gathering frequency variator is delivered to the communication terminal that CPU is the communication terminal connection CPU of frequency variator, realizes data transmission by adopting the RS-485 communication modes.
At the detection initial stage, measure the corresponding relation between the operation displacement of balancing weight of the operation displacement of oil-extractor polish-rod and crank device.Balancing weight one side at the crank device of pumping unit is installed Hall transducer, and the displacement of balancing weight when recording the pumping unit operation promptly can be exchanged into the displacement of oil-extractor polish-rod.The displacement information that Hall transducer records is transported to CPU and handles by the information acquisition unit in the distribution box.This displacement is one and follows motor speed (v) with time (t) relevant function, note is S=S (v, t), because rotating speed of motor is (v) by Frequency Converter Control, it is the function of frequency (f), note is v=V (f), so the frequency (f) that CPU can be by reading frequency variator, working time, (t) data computation went out this displacement amount (S).Pumping unit master motor is by Frequency Converter Control, and the moment (M) in the corresponding a certain moment according to the known arm of force (L) and formula moment (M)=P*L, can calculate corresponding load p constantly when frequency variator is read oil pumping, remembers and is P=P (t).So just can obtain the displacement of a certain moment correspondence and the size of load, also just can change into the corresponding relation of load and displacement easily, note is P=P (S), and with the indicator diagram of this main motor that draws.To scheme indicator diagram with the pumping unit inherent characteristic then, to carry out vector synthetic, promptly obtains reacting the indicator diagram of the oil-extractor polish-rod of actual oil pumping situation.
The data terminal of CPU is provided with touch screen display, and the communication terminal of CPU is provided with wireless transport module, is respectively applied for to show and transmission.
The preferred GPRS wireless transport module of wireless transport module also can be used the cdma wireless transmission module, and the convenient remote-wireless of realizing transmits.Many group signals are delivered to main control system by wireless transport module, convenient centralized management.
Displacement transducer preferably adopts Hall transducer, also can adopt backguy, near switch, angle transducer.
Pumping unit of the present invention, frequency variator, control unit, CPU, displacement transducer are common existing product.All be connected between CPU and control unit, wireless transport module, touch screen display, the signal gathering unit, adopt the RS-485 communication modes between the communication terminal of frequency variator and the communication terminal of CPU according to the known technology mode.The output data of frequency variator comprises electric current, voltage, moment, frequency, power etc.
According to measured indicator diagram; and in conjunction with on-site actual situations etc., the possible situation of runnability and down-hole of operating modes such as comprehensive analysis and judgement master motor that can be automatic or artificial, pumping unit, feed flow is convenient to carry out the oil well control of finding time; automatically take out between the realization science; minimizing machine-bar-pump wearing and tearing prolongs pump detection period, saving power consumption; enhance productivity; reduce testing expense and cost of production, and can realize the protection of overcurrent, overvoltage etc., calculate functions such as power consumption.
Claims (5)
1, a kind of method of measurement that need not the means for oilfield oil pump indicating diagram of load transducer, comprise and measure the pumping-unit workdone graphic that calculates pumping unit self machinery, CPU is by the running state of control unit control frequency variator, the SC sigmal control pumping unit master motor that frequency variator sends according to CPU, it is characterized in that: crank device balancing weight one side at pumping unit is provided with displacement transducer, displacement transducer is delivered to CPU with displacement signal by signal gathering unit, the service data of gathering frequency variator is delivered to CPU, CPU carries out coordinate to the service data of displacement signal and collection frequency variator to be handled, obtain main motor indicator diagram, CPU carries out the synthetic processing of vector with main motor indicator diagram and pumping-unit workdone graphic, obtain the polished rod indicator diagram that comprises displacement data and load data of oil-extractor polish-rod, and show or transmission.
2, method of measurement according to claim 1 is characterized in that the service data of described collection frequency variator is delivered to the communication terminal that CPU is the communication terminal connection CPU of frequency variator, realizes data transmission by adopting the RS-485 communication modes.
3, method of measurement according to claim 1 is characterized in that the data terminal of described CPU is provided with touch screen display.
4, method of measurement according to claim 1 is characterized in that the communication terminal of described CPU is provided with wireless transport module.
5, method of measurement according to claim 1, it is characterized in that described displacement transducer adopt Hall transducer, backguy, near switch or angle transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100141362A CN101498296B (en) | 2008-01-31 | 2008-01-31 | Measuring means for oilfield oil pump indicating diagram without load transducer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100141362A CN101498296B (en) | 2008-01-31 | 2008-01-31 | Measuring means for oilfield oil pump indicating diagram without load transducer |
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| CN101498296A true CN101498296A (en) | 2009-08-05 |
| CN101498296B CN101498296B (en) | 2010-11-10 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094626A (en) * | 2010-12-20 | 2011-06-15 | 中国石油天然气股份有限公司 | Real-time fault early warning method and system of oil well |
| CN102331320A (en) * | 2011-06-20 | 2012-01-25 | 沈阳理工大学 | Beam pumping unit indicator diagram soft measurement method based on neural network |
| CN102465687A (en) * | 2010-11-15 | 2012-05-23 | 李新华 | Signal transmitter |
| CN104929615A (en) * | 2015-06-11 | 2015-09-23 | 滁州市西控电子有限公司 | Portable indicator |
| CN105422081A (en) * | 2014-09-23 | 2016-03-23 | 中国石油天然气股份有限公司 | Method and device for calculating motion angle of suspension point of oil pumping unit based on angle relationship |
| CN105484730A (en) * | 2015-12-28 | 2016-04-13 | 江西飞尚科技有限公司 | Upper and lower dead point accurate extraction method based on sucker rod indicator diagram |
| CN106894797A (en) * | 2017-03-20 | 2017-06-27 | 中国石油天然气股份有限公司 | A kind of oil pumping machine crank oscillating control device and method |
| CN108979596A (en) * | 2018-09-14 | 2018-12-11 | 贵州航天林泉电机有限公司苏州分公司 | A kind of vertical oil-pumping machine with belt fracture defencive function |
| US10260500B2 (en) | 2017-05-15 | 2019-04-16 | General Electric Company | Downhole dynamometer and method of operation |
| CN110617038A (en) * | 2019-09-20 | 2019-12-27 | 中国石油化工股份有限公司 | Oil pumping drive control and detection analysis device based on self-adaptive analysis |
| CN110761773A (en) * | 2019-09-23 | 2020-02-07 | 冯祎诺 | Device and method for monitoring running state of oil pumping unit |
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| CN106066845B (en) * | 2016-05-30 | 2019-03-01 | 中国科学院半导体研究所 | A kind of study estimation method of pumping-unit workdone graphic |
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| US3343409A (en) * | 1966-10-21 | 1967-09-26 | Shell Oil Co | Method of determining sucker rod pump performance |
| US4490094A (en) * | 1982-06-15 | 1984-12-25 | Gibbs Sam G | Method for monitoring an oil well pumping unit |
| US5291777A (en) * | 1992-03-09 | 1994-03-08 | Intevep, S.A. | System for monitoring oil well performance |
| CN2211591Y (en) * | 1994-12-29 | 1995-11-01 | 北京金时石油测试技术有限公司 | Position moving sensor |
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| CN101029639A (en) * | 2007-04-02 | 2007-09-05 | 济南新吉纳远程测控有限公司 | Method for measuring pumping-unit workdone graphic in oil field |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465687A (en) * | 2010-11-15 | 2012-05-23 | 李新华 | Signal transmitter |
| CN102094626A (en) * | 2010-12-20 | 2011-06-15 | 中国石油天然气股份有限公司 | Real-time fault early warning method and system of oil well |
| CN102331320A (en) * | 2011-06-20 | 2012-01-25 | 沈阳理工大学 | Beam pumping unit indicator diagram soft measurement method based on neural network |
| CN102331320B (en) * | 2011-06-20 | 2013-04-10 | 沈阳理工大学 | Beam pumping unit indicator diagram soft measurement method based on neural network |
| CN105422081B (en) * | 2014-09-23 | 2018-10-16 | 中国石油天然气股份有限公司 | The method and apparatus for calculating pumping unit hanging point movement angle based on angular relationship |
| CN105422081A (en) * | 2014-09-23 | 2016-03-23 | 中国石油天然气股份有限公司 | Method and device for calculating motion angle of suspension point of oil pumping unit based on angle relationship |
| CN104929615A (en) * | 2015-06-11 | 2015-09-23 | 滁州市西控电子有限公司 | Portable indicator |
| CN105484730A (en) * | 2015-12-28 | 2016-04-13 | 江西飞尚科技有限公司 | Upper and lower dead point accurate extraction method based on sucker rod indicator diagram |
| CN106894797A (en) * | 2017-03-20 | 2017-06-27 | 中国石油天然气股份有限公司 | A kind of oil pumping machine crank oscillating control device and method |
| US10260500B2 (en) | 2017-05-15 | 2019-04-16 | General Electric Company | Downhole dynamometer and method of operation |
| CN108979596A (en) * | 2018-09-14 | 2018-12-11 | 贵州航天林泉电机有限公司苏州分公司 | A kind of vertical oil-pumping machine with belt fracture defencive function |
| CN108979596B (en) * | 2018-09-14 | 2024-04-05 | 贵州航天林泉电机有限公司苏州分公司 | Vertical pumping unit with belt fracture protection function |
| CN110617038A (en) * | 2019-09-20 | 2019-12-27 | 中国石油化工股份有限公司 | Oil pumping drive control and detection analysis device based on self-adaptive analysis |
| CN110617038B (en) * | 2019-09-20 | 2021-11-23 | 中国石油化工股份有限公司 | Oil pumping drive control and detection analysis device based on self-adaptive analysis |
| CN110761773A (en) * | 2019-09-23 | 2020-02-07 | 冯祎诺 | Device and method for monitoring running state of oil pumping unit |
| CN110761773B (en) * | 2019-09-23 | 2023-04-07 | 冯祎诺 | Device and method for monitoring running state of oil pumping unit |
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| CN101498296B (en) | 2010-11-10 |
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