CN202257201U - Optimum jig frequency determination device of oil pumping unit - Google Patents
Optimum jig frequency determination device of oil pumping unit Download PDFInfo
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- CN202257201U CN202257201U CN2011202331458U CN201120233145U CN202257201U CN 202257201 U CN202257201 U CN 202257201U CN 2011202331458 U CN2011202331458 U CN 2011202331458U CN 201120233145 U CN201120233145 U CN 201120233145U CN 202257201 U CN202257201 U CN 202257201U
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- jig frequency
- oil pumper
- rtu
- frequency
- frequency determination
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses an optimum jig frequency determination device of an oil pumping unit. The device mainly comprises a load sensor, an angular displacement sensor, an RTU, a frequency converter or the like. Optimum jig frequency determination program is stored in the RTU. Relative changing values of daily output liquid volumes instead of absolute values of daily output liquid volumes are adopted by the optimum jig frequency determination program, such that ratios of leverage iteration equation calculation before and after changing of jig frequencies, which are related with oil well parameters, can be neglected. The program is small in operand, occupies small memory, can be directly operated on the RTU, can be operated without a host computer, such that data collection, operation and control are independently completed by an oil pumping unit itself without dependence on operation and control of the host computer, thereby guaranteeing more reliable operation of a system.
Description
Technical field
The utility model relates to the automatic control technology field that oil pumper merit figure measures and best jig frequency is judged, the best jig frequency decision maker of particularly a kind of oil pumper.
Background technology
At present, the concentrated contradiction in domestic oil field is that stripper well quantity is many.Under existing pumping production running parameter combination, sky is taken out the phenomenon ubiquity, and pump efficiency and system effectiveness are lower, and ton liquid power consumption is high.
For many years, take out phenomenon for overcoming sky, improve pump efficiency and system effectiveness, the scientific research personnel furthers investigate.Research shows: after the stroke of oil pumper and pump size were selected, the principal element that influence pump efficiency and system effectiveness was a jig frequency, and the rational Match of jig frequency and well deliverability is that the solution sky is taken out problem, the effective way of raising pump efficiency and system effectiveness.For this reason, people have developed the oil pumper variable-frequency control technique, conveniently carry out jig frequency and regulate, and have obtained certain effect.
Yet variable-frequency control technique has just well solved the convenient problem that jig frequency is regulated, and has solved jig frequency from hardware and has regulated problem, how to select reasonable jig frequency still to be difficult to solve.Putting before this, people select the mode of reasonable jig frequency to be: the merit figure with oil pumper load, displacement transducer obtain is transferred to host computer; On host computer, import oilwell parameter, utilize the powerful calculation function of host computer, through " merit map analysis " software of special use; Obtain the daily fluid production rate of oil well; Through the analysis of these data, computing machine can provide conclusions such as oil well liquid-supplying deficiency, and people select reasonable jig frequency according to these conclusions.
The principle and the structure of special-purpose " merit map analysis " software are such: 1. through load, displacement transducer, obtain load displacement merit figure, be commonly called as " ground merit figure "; 2. utilize ground merit figure; According to oilwell parameter, find the solution the sucker rod leverage iterative equation of ground to oily subsurface pump depths, obtain the elastic deformation amount of sucker rod leverage; Thereby obtain the load and the displacement of junction, sucker rod bottom oil well pump, and then obtain the pump merit figure of oil well pump; 3. judge the effective stroke of pump by pump merit figure, can obtain daily fluid production rate according to jig frequency again.
In the process that realizes the utility model, utility model people finds that there is following shortcoming at least in prior art:
The enforcement of such scheme to each link of controlling, can form closed-loop control from data acquisition, transmission, computing, preferably resolves the problem in the reasonable jig frequency selection course.But, in the practical implementation process, still have the relatively poor problem of system's operational reliability; Main cause is: it is limited and capacity is less that the oil pumper control module is attend the chip performance of institute's dress microprocessor, is not enough to operation and special-purpose " merit map analysis " software of computing, so that the daily fluid production rate of acquisition oil well; And the daily fluid production rate of oil well is the key parameter that reasonable jig frequency is selected; Therefore, must the data that single oil pumper obtained be passed to the bigger host computer of arithmetic capability and carry out computing.Yet the data transmission of many oil pumpers and same host computer is under the Limited resources configuring condition of oil field; Can not accomplish uninterruptedly unimpeded; Under the situation that data transmission is interrupted, select the program of reasonable jig frequency will be compelled to interrupt, cause the program of closed-loop control to move.
Above-mentioned analysis can be known: oil pumper " special-purpose merit map analysis " software operand is big, and oil pumper self control module chip capacity is little, and arithmetic capability is not enough, is to cause the reasonable jig frequency option program of oil pumper to be difficult to the key factor of reliability service.
The utility model content
In order to make oil pumper realize the independent completion of data acquisition, computing and control, do not rely on the computing and the control of host computer, the operation of assurance system is more reliable.The utility model embodiment provides a kind of oil pumper best jig frequency decision maker, and said device comprises:
Load transducer is arranged at poliched rod eye position on the oil pumper, is used to obtain oil pumper polished rod load signal;
Angular displacement sensor is arranged at beam travelling supporting shaft position on the oil pumper, is used to obtain the displacement signal under the oil pumper polished rod load;
Frequency converter is arranged in the oil pumper Based Intelligent Control cabinet, realizes the pumping-unit motor frequency adjustment, the jig frequency adjustment;
RTU is arranged in the Based Intelligent Control cabinet of oil pumper, connects with said load transducer, angular displacement sensor and frequency converter, has best jig frequency decision procedure in the said RTU;
Best jig frequency decision procedure comprises:
The load displacement information acquisition unit is used to obtain the data-signal that said load transducer and angular displacement sensor collects;
Production fluid amount computing unit according to load displacement information, is found the solution ground merit figure and is calculated the relative production fluid amount under the current jig frequency relatively;
Frequency conversion control unit, control of conversion device realize the rotating speed adjustment of pumping-unit motor by certain step-size change, and then realize the adjustment of oil pumper jig frequency;
Best jig frequency identifying unit is judged best jig frequency according to the ratio R of relative production fluid amount and 1 relation before and after the jig frequency adjustment.When R＜1, last jig frequency is best jig frequency.
During work; Said RTU obtains to move best jig frequency decision procedure after the load displacement information; Best jig frequency decision procedure is tried to achieve corresponding with it relative production fluid amount according to the load displacement information state before and after changing, and carries out best jig frequency according to the relative production fluid amount in front and back and judge, obtains best jig frequency; Through said frequency converter said pumping-unit motor is controlled then, realized that oil pumper moves under best jig frequency.
Said RTU obtains the load displacement signal of said load transducer and angular displacement sensor through Modbus agreement wireless data sending mode or cable data transmission mode.
The beneficial effect of the technical scheme that the utility model embodiment provides is:
A. best jig frequency decision procedure can run in the RTU chip in the less oil pumper Based Intelligent Control cabinet of capacity.Owing to the relative changing value who has adopted daily fluid production rate, rather than the absolute value of daily fluid production rate, so changing the front and back leverage iterative equation calculating relevant with oilwell parameter, jig frequency disregards because of ratio can omit, therefore can compare load displacement merit figure variation and get final product.
B. move best jig frequency decision procedure, need not import loaded down with trivial details oilwell parameter.Therefore, the oil pumper control module can save load module.Even variation has taken place in the pump degree of depth under after the well workover, need not re-enter down parameters such as the pump degree of depth yet, simplified engineering technical personnel's workload.
C. oil pumper has been realized the independent completion of data acquisition, computing and control, does not rely on the computing and the control of host computer, has reached own thing do-it-yourself, has guaranteed that system's operation is more reliable.
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 best jig frequency decision procedure of a utility model process flow diagram;
Fig. 2 is the utility model hardware model figure;
Fig. 3 is an oil pumper synoptic diagram of being furnished with best jig frequency decision maker.
Among the figure: 1-angular displacement sensor 2-load transducer 3-Based Intelligent Control cabinet 4-motor.
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.
Said decision procedure flow process is as shown in Figure 1:
Circulation step one to three, until ratio R＜1 o'clock, last jig frequency is the best jig frequency of oil pumper.
Wherein, the change oil pumper jig frequency in the step 2 is to realize that through the method that frequency converter is regulated the pumping-unit motor frequency pumping-unit motor frequency adjustment amplitude wherein is 5Hz, can be through increasing the electric machine frequency value or reducing the electric machine frequency value.
Relative production fluid amount in step 1 and the step 2 is to obtain through the area of asking for the load displacement merit figure under the current jig frequency.
As shown in Figures 2 and 3, the best jig frequency decision maker of oil pumper is arranged on the oil pumper, mainly comprises following a few part:
Load transducer is arranged at poliched rod eye position on the oil pumper, is used to obtain oil pumper polished rod load signal;
Angular displacement sensor is arranged at beam travelling supporting shaft position on the oil pumper, is used to obtain the displacement signal under the oil pumper polished rod load;
Frequency converter is arranged in the oil pumper Based Intelligent Control cabinet, realizes the pumping-unit motor frequency adjustment, the jig frequency adjustment;
RTU is arranged in the Based Intelligent Control cabinet of oil pumper, connects with said load transducer, angular displacement sensor and frequency converter, has best jig frequency decision procedure in the said RTU.
As shown in Figure 2, best jig frequency decision procedure wherein comprises:
The load displacement information acquisition unit is used to obtain the data-signal that said load transducer and angular displacement sensor collects;
Frequency conversion control unit, control of conversion device realize the rotating speed adjustment of pumping-unit motor by certain step-size change, and then realize the adjustment of oil pumper jig frequency;
Production fluid amount computing unit according to load displacement information, is found the solution ground merit figure and is calculated the relative production fluid amount under the current jig frequency relatively;
Best jig frequency identifying unit is judged best jig frequency according to the ratio R of relative production fluid amount and 1 relation before and after the jig frequency adjustment.If relative ratio R＜1 of production fluid amount o'clock, the best jig frequency of last jig frequency.
During work; Said RTU obtains to move best jig frequency decision procedure after the load displacement information; Best jig frequency decision procedure is tried to achieve corresponding with it relative production fluid amount according to the load displacement information state before and after changing, and carries out best jig frequency according to the relative production fluid amount in front and back and judge, obtains best jig frequency; Through said frequency converter said pumping-unit motor is controlled then, realized that oil pumper moves under best jig frequency.
RTU obtains the load displacement signal of said load transducer and angular displacement sensor through Modbus agreement wireless data sending mode or cable data transmission mode.
The operand of this best jig frequency decision procedure and program itself are all less relatively; Be fit to the chip of RTU than low capacity; Make oil pumper self can realize that data acquisition, computing are to the operation with closed ring of controlling; Let oil pumper self realize own thing do-it-yourself, avoid and host computer between the transmission error, the assurance reliability of system operation.
Above-mentioned the utility model embodiment sequence number is not represented the quality of embodiment just to description.
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 (1)
1. the best jig frequency decision maker of an oil pumper, it is characterized in that: said device comprises:
Load transducer is arranged at poliched rod eye position on the oil pumper, is used to obtain oil pumper polished rod load signal;
Angular displacement sensor is arranged at beam travelling supporting shaft position on the oil pumper, is used to obtain the displacement signal under the oil pumper polished rod load;
Frequency converter is arranged in the oil pumper Based Intelligent Control cabinet, realizes the pumping-unit motor frequency adjustment, the jig frequency adjustment;
RTU is arranged in the Based Intelligent Control cabinet of oil pumper, is the control core of best jig frequency decision maker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202331458U CN202257201U (en) | 2011-07-04 | 2011-07-04 | Optimum jig frequency determination device of oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202331458U CN202257201U (en) | 2011-07-04 | 2011-07-04 | Optimum jig frequency determination device of oil pumping unit |
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| Publication Number | Publication Date |
|---|---|
| CN202257201U true CN202257201U (en) | 2012-05-30 |
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| CN2011202331458U Expired - Lifetime CN202257201U (en) | 2011-07-04 | 2011-07-04 | Optimum jig frequency determination device of oil pumping unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865053A (en) * | 2011-07-04 | 2013-01-09 | 中国石油天然气股份有限公司 | Method and device for judging optimal times of stroke of pumping unit |
| CN103226653A (en) * | 2013-03-29 | 2013-07-31 | 中国石油天然气股份有限公司 | Method of forecasting suspension center loads of oil pumping unit of directional well segmentally according to pump depth |
| CN109899056A (en) * | 2017-12-07 | 2019-06-18 | 中国石油天然气股份有限公司 | Parameter determination method, device and the computer readable storage medium of pumping unit |
| CN110206514A (en) * | 2019-06-27 | 2019-09-06 | 北京讯腾智慧科技股份有限公司 | Beam-pumping unit jig frequency regulating system and method |
| CN112523730A (en) * | 2019-09-18 | 2021-03-19 | 北京国双科技有限公司 | Pumping unit stroke frequency screening method, machine learning model obtaining method and related device |
-
2011
- 2011-07-04 CN CN2011202331458U patent/CN202257201U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865053A (en) * | 2011-07-04 | 2013-01-09 | 中国石油天然气股份有限公司 | Method and device for judging optimal times of stroke of pumping unit |
| CN102865053B (en) * | 2011-07-04 | 2015-06-03 | 中国石油天然气股份有限公司 | Method and device for judging optimal times of stroke of pumping unit |
| CN103226653A (en) * | 2013-03-29 | 2013-07-31 | 中国石油天然气股份有限公司 | Method of forecasting suspension center loads of oil pumping unit of directional well segmentally according to pump depth |
| CN109899056A (en) * | 2017-12-07 | 2019-06-18 | 中国石油天然气股份有限公司 | Parameter determination method, device and the computer readable storage medium of pumping unit |
| CN110206514A (en) * | 2019-06-27 | 2019-09-06 | 北京讯腾智慧科技股份有限公司 | Beam-pumping unit jig frequency regulating system and method |
| CN112523730A (en) * | 2019-09-18 | 2021-03-19 | 北京国双科技有限公司 | Pumping unit stroke frequency screening method, machine learning model obtaining method and related device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |