CN201162664Y - Measuring apparatus for oil field oil pumping machine indicating diagram without load sensor - Google Patents
Measuring apparatus for oil field oil pumping machine indicating diagram without load sensor Download PDFInfo
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- CN201162664Y CN201162664Y CNU2008200173424U CN200820017342U CN201162664Y CN 201162664 Y CN201162664 Y CN 201162664Y CN U2008200173424 U CNU2008200173424 U CN U2008200173424U CN 200820017342 U CN200820017342 U CN 200820017342U CN 201162664 Y CN201162664 Y CN 201162664Y
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Abstract
The utility model provides an indicator diagram measuring device of an oil field pumping unit which is free of a load sensor, comprising a pumping unit, a frequency converter, a CPU and a direct current power supply module. The direct current power supply module is connected with the CPU. The input end of the CPU is connected with the control input end of the frequency converter by a control unit. The output end of the main power supply of the frequency converter is connected with the input end of the main motor of the pumping unit. The utility model is characterized in that a displacement sensor is arranged at the side of the crank handle of the pumping unit at which a clump weight is arranged. The output end of the displacement sensor is connected with the signal input end of the CPU by a signal acquisition unit. The communication end of the frequency converter is connected with the signal communication end of the CPU. The data end of the CPU is provided with a touch display screen. The indicator diagram measuring device can obtain all kinds of working parameters from the frequency converter, calculates and processes the working parameters by the CPU, and can measure the indicator diagram of the pumping unit correctly and reliably without installing the devices of the load senso,the pressure sensor etc., on the polished rod or walking beam of the pumping unit, and without shutting down and unloadding the machine.
Description
Technical field
The utility model provides a kind of measuring device that need not the means for oilfield oil pump indicating diagram of load transducer, belongs 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.
The model utility content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of simple and easy, convenient, need not the measuring device of the means for oilfield oil pump indicating diagram of load transducer accurately, reliably.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of measuring device that need not the means for oilfield oil pump indicating diagram of load transducer, comprise pumping unit, frequency variator, CPU and DC power supplier, DC power supplier connects CPU, the output terminal of CPU connects the control input end of frequency variator by control unit, the primary power supply output terminal of frequency variator connects the input end of pumping unit master motor, it is characterized in that: crank device balancing weight one side at pumping unit is provided with displacement transducer, the output terminal of displacement transducer connects the signal input part of CPU by signal gathering unit, the communication terminal of frequency variator connects the signal and communication end of CPU, and the data terminal of CPU is provided with touch screen display.
The communication terminal of described CPU is provided with wireless transport module.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.
Working procedure of the present utility model: 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 corresponding relation of load and displacement, to carry out vector synthetic with the indicator diagram of pumping unit self then, promptly obtains the indicator diagram of polished rod in the pumping unit running, stores, shows or transmit by wireless transport module by touch screen display.
A kind of beneficial effect that measuring device had that need not the means for oilfield oil pump indicating diagram of load transducer of the present utility model is: by using the Frequency Converter Control motor; and then control pumping unit work; obtain various Operational Limitss from frequency variator; carry out calculation process by CPU; 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 testing apparatus 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 theory diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described:
As shown in Figure 1, DC power supplier connects CPU, and the output terminal of CPU connects the control input end of frequency variator by control unit.The primary power supply output terminal of frequency variator connects the input end of pumping unit master motor, and the communication terminal of frequency variator connects the communication terminal of CPU.The output terminal of displacement transducer connects the signal input part of CPU by signal gathering unit.The data terminal of CPU is provided with touch screen display, and the communication terminal of CPU is provided with wireless transport module.The input end of DC power supplier connects ac power supply.
Displacement transducer is arranged on crank device balancing weight one side of pumping unit.
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 described in the utility model, 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.
Working procedure of the present utility model and principle:
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.
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 (4)
1, a kind of measuring device that need not the means for oilfield oil pump indicating diagram of load transducer, comprise pumping unit, frequency variator, CPU and DC power supplier, DC power supplier connects CPU, the output terminal of CPU connects the control input end of frequency variator by control unit, the primary power supply output terminal of frequency variator connects the input end of pumping unit master motor, it is characterized in that: crank device balancing weight one side at pumping unit is provided with displacement transducer, the output terminal of displacement transducer connects the signal input part of CPU by signal gathering unit, the communication terminal of frequency variator connects the signal and communication end of CPU, and the data terminal of CPU is provided with touch screen display.
2, measuring device according to claim 1 is characterized in that the communication terminal of described CPU is provided with wireless transport module.
3, measuring device according to claim 1 is characterized in that adopting the RS-485 communication modes between the communication terminal of the communication terminal of described frequency variator and CPU.
4, measuring device 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 |
|---|---|---|---|
| CNU2008200173424U CN201162664Y (en) | 2008-01-31 | 2008-01-31 | Measuring apparatus for oil field oil pumping machine indicating diagram without load sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200173424U CN201162664Y (en) | 2008-01-31 | 2008-01-31 | Measuring apparatus for oil field oil pumping machine indicating diagram without load sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162664Y true CN201162664Y (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200173424U Expired - Fee Related CN201162664Y (en) | 2008-01-31 | 2008-01-31 | Measuring apparatus for oil field oil pumping machine indicating diagram without load sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN201162664Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266880A (en) * | 2013-05-16 | 2013-08-28 | 新疆敦华石油技术有限公司 | Oil well load measurement method |
| CN104153982A (en) * | 2014-07-18 | 2014-11-19 | 中国石油天然气股份有限公司 | Method and device for acquiring characteristic curve of underground system of rod-pumped well |
| CN106894797A (en) * | 2017-03-20 | 2017-06-27 | 中国石油天然气股份有限公司 | Crank swing control device and method for oil pumping unit |
| CN110838155A (en) * | 2019-10-29 | 2020-02-25 | 中国石油大学(北京) | Method and system for fully reproducing ground indicator diagram of oil pumping unit |
-
2008
- 2008-01-31 CN CNU2008200173424U patent/CN201162664Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266880A (en) * | 2013-05-16 | 2013-08-28 | 新疆敦华石油技术有限公司 | Oil well load measurement method |
| CN104153982A (en) * | 2014-07-18 | 2014-11-19 | 中国石油天然气股份有限公司 | Method and device for acquiring characteristic curve of underground system of rod-pumped well |
| CN106894797A (en) * | 2017-03-20 | 2017-06-27 | 中国石油天然气股份有限公司 | Crank swing control device and method for oil pumping unit |
| CN110838155A (en) * | 2019-10-29 | 2020-02-25 | 中国石油大学(北京) | Method and system for fully reproducing ground indicator diagram of oil pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20140131 |