CN109063629A - A method of pumping unit lower dead point position on identification oil pumping electromechanical parameters curve - Google Patents
A method of pumping unit lower dead point position on identification oil pumping electromechanical parameters curve Download PDFInfo
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- CN109063629A CN109063629A CN201810843497.1A CN201810843497A CN109063629A CN 109063629 A CN109063629 A CN 109063629A CN 201810843497 A CN201810843497 A CN 201810843497A CN 109063629 A CN109063629 A CN 109063629A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
- G06F2218/02—Preprocessing
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Abstract
The invention discloses a kind of methods of pumping unit lower dead point position on identification oil pumping electromechanical parameters curve, including data acquisition: utilizing electrical parameter acquisition device, acquires the operating parameter in the pumping unit duty cycle, obtain each electrical parameter evidence, and store record；Data processing: periodic electrical parameter is filtered according to maintenance data filtering algorithm, obtains smooth electricity ginseng curve；Comparing: multiple groups electricity ginseng curve is compared, the final position for determining electricity ginseng curve bottom dead centre.The present invention, by the processing to electricity ginseng curve to which Direct Recognition electricity joins the position of pumping unit bottom dead centre on curve, without individually increasing the hardware device of bottom dead centre detection, reduces cost, ensures safety using disposably to the electrical parameter of pumpingh well according to being acquired.
Description
Technical field
The present invention relates to petroleum industry internet of things data to analyze applied technical field, and in particular to a kind of identification oil pumping is electromechanical
Join the method for pumping unit lower dead point position on curve.
Background technique
In existing oil field Internet of things system, pumping unit lower dead point position is essentially relying on pumping on the electromechanical ginseng curve of identification oil pumping
The method of angular displacement sensor is installed on oil machine walking beam, i.e., acquires electrical parameter and angular displacement parameter simultaneously to determine on electricity ginseng curve
The position of pumping unit bottom dead centre.
Using technology of Internet of things, building data oil field becomes the main flow direction of current oil industry.By acquiring pumping in real time
Oil machine electrical parameter realizes the analyzing and diagnosing to working conditions of oil extractor and hole condition in turn, is the concerted effort direction of current industry.However
How accurately easily to identify that the position problems of pumping unit bottom dead centre on electricity ginseng curve become electrical parameter strengthened research
Bottleneck problem.
The method of pumping unit bottom dead centre is mainly hard-wired method on existing identification electricity ginseng curve.In order to identify electric ginseng
The method of installation angular displacement sensor is usually taken to determine the position of bottom dead centre in the position of pumping unit bottom dead centre on curve.
Do not realize pumping unit lower dead point position on the electromechanical ginseng curve of identification oil pumping with the method for data processing still at present
Method.It accurately finds pumping unit lower dead point position problem on electricity ginseng curve and becomes industry and be generally eager the technical problem captured.
Four, the method for pumping unit lower dead point position is primarily present following disadvantage on existing identification electricity ginseng curve:
1, data acquisition needs to install the hardware devices such as hardware identification device, and the installation of hardware device is hidden in the presence of safety
Suffer from, maintenance cost is high；
2, the construction cost of Internet of Things is increased, increases maintenance workload and maintenance difficulties in actual use；
3, electrical parameter signal and the problem of angular displacement signal synchronous acquisition, restrict pumping unit bottom dead centre position on electricity ginseng curve
That sets accurately identifies.
Summary of the invention
The purpose of the present invention is to provide a kind of methods of pumping unit lower dead point position on electromechanical ginseng curve of identification oil pumping, use
To solve the problems, such as the timeliness of safety and data-signal synchronous acquisition that existing hardware equipment uses.
To achieve the above object, the technical scheme is that
A method of pumping unit lower dead point position on the electromechanical ginseng curve of identification oil pumping, including
Data acquisition: utilizing electrical parameter acquisition device, acquires the operating parameter in the pumping unit duty cycle, obtains each electricity ginseng
Data, and store record；
Data processing: periodic electrical parameter is filtered according to maintenance data filtering algorithm, obtains smooth electricity
Join curve；
Comparing: multiple groups electricity ginseng curve is compared, the final position for determining electricity ginseng curve bottom dead centre.
Further, wherein the two or more that should at least acquire the pumping unit duty cycle for data acquisition is complete
The electrical parameter evidence in period.
Further, the time interval of adjacent collection period is not more than 120 milliseconds, the predominantly three-phase of the electrical parameter evidence
The data of electric current, three-phase voltage and three phase power.
Further, the data handling procedure includes the format conversion to the electrical parameter evidence of acquisition, and data format is turned
It is changed to filtering algorithm readable data format.
Further, the data handling procedure further includes effective according to carrying out to the electrical parameter in collected complete cycle
Property inspection, the validity check process to data are completed after the format conversion.
Further, the electrical parameter evidence with validity is filtered after the data processing, is finally obtained
Stable electricity ginseng curve.
Further, the data procedures are to compare for the filtered electricity ginseng curve of multiple groups to be overlapped to compare, and obtain electricity
Parameter is according to the minimum value of periodically, and the time interval that minimum value occurs is identical, and minimum value is substantially close to determining that minimum value is
Lower dead point position obtains single lower dead point position.
Further, the electricity ginseng curve of the single lower dead point position of multiple groups is acquired, superposition comparison finally determines accurate bottom dead centre
Position.
Further, the period of oil pumping electromechanical parameters evidence is acquired in the electricity ginseng curve of single lower dead point position described in every group
Number is identical.
Further, the electricity ginseng curve of single lower dead point position described in multiple groups is to acquire under pumping unit single working condition
Electrical parameter evidence obtains.
The present invention has the advantage that
1, the present invention uses disposably to the data parameter acquisition of pumpingh well, by the processing to electricity ginseng curve to directly
The position for identifying pumping unit bottom dead centre reduces cost, ensures safety without individually increasing the hardware device of bottom dead centre detection；
2, method of the invention utilizes technology of Internet of things, can be by processing, the comparison repeatedly to electrical parameter evidence, and obtains
The minimum value of a definite value is approached, the accuracy of pumping unit lower dead point position judgement is realized, improves the accuracy of subsequent job；
3, method of the invention completely avoids electrical parameter signal and angular displacement signal is unable to synchronous acquisition and bring pair
The inexactness of lower dead point position identification, it is only necessary to unidirectional acquisition electrical parameter evidence, it is easy to be accurate to data processing, it is hard without carrying out
The position that automatic identification electricity joins pumping unit bottom dead centre on curve can be realized by computer software in part investment.
Detailed description of the invention
Fig. 1 is the process of the method for identification pumping unit work electricity electricity ginseng curve lower dead point position provided in an embodiment of the present invention
Block diagram.
Fig. 2 is the specific of the method for identification pumping unit work electricity electricity ginseng curve lower dead point position provided in an embodiment of the present invention
The flow diagram of work.
Data in the method for the electric ginseng curve lower dead point position of identification pumping unit work electricity provided in an embodiment of the present invention when Fig. 3
Electricity ginseng curve graph that treated.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
As shown in Figure 1 and Figure 2, working it illustrates identification pumping unit provided in an embodiment of the present invention, electricity is electric to join under curve extremely
The method of point position, including
Data acquisition: utilizing electrical parameter acquisition device, acquires the operating parameter in the pumping unit duty cycle, obtains each electricity ginseng
Data, and store record, the process for storing record is mainly subject to the timing node of duty cycle, convenient for determining every group of data
Starting point, to make every group of electrical parameter according to the numerical value for determining corresponding position；
Wherein, the electricity ginseng of more than two complete cycles of pumping unit duty cycle should be at least acquired for data acquisition
Data.
Specifically, the time interval of adjacent collection period is not more than 120 milliseconds, the predominantly three-phase electricity of the electrical parameter evidence
The data of stream, three-phase voltage and three phase power, the acquisition time interval of electrical parameter evidence is unsuitable too long, can be improved work effect first
Rate, in addition the interval time too long electrical parameter got next time that will cause is according to, increase error inconsistent with last cycle data.
Data processing: by periodic electrical parameter according to being filtered by filtering algorithm, it is bent to obtain smooth electricity ginseng
Line；
Wherein, the format of the electrical parameter evidence of acquisition is converted first, is filtering algorithm readable data by Data Format Transform
Format.
Specifically, the data handling procedure further includes to the electrical parameter in collected complete cycle according to progress validity
It checks, the validity check process to data completes after the format conversion, when checking as validity, continues at filtering
If reason resurveys electrical parameter evidence check electrical parameter according to being invalid data.
Based on above scheme, for the electrical parameter with validity according to being filtered after the data processing, finally
Obtain stable electricity ginseng curve.
Comparing: multiple groups electricity ginseng curve is compared, the final position for determining electricity ginseng curve bottom dead centre.
As shown in figure 3, the data procedures are to compare for the filtered electricity ginseng curve of multiple groups to be overlapped to compare, electricity is obtained
Parameter is according to the minimum value of periodically, and the time interval that minimum value occurs is identical, and minimum value is substantially close to determining that minimum value is
Lower dead point position obtains single lower dead point position.
Based on above scheme, the electricity of the acquisition single lower dead point position of multiple groups joins curve, superposition comparison, under finally determining accurately
Dead-centre position will can further get the mean data of multiple groups electricity ginseng curve, obtain more accurate lower dead point position, mention
The accuracy of high subsequent job.
Wherein, the periodicity phase of oil pumping electromechanical parameters evidence is acquired in the electricity ginseng curve of single lower dead point position described in every group
Together.
Specifically, the acquisition of the electricity ginseng curve of most single lower dead point positions is to adopt under pumping unit single working condition
What the electrical parameter evidence of collection obtained.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (9)
1. a kind of method of pumping unit lower dead point position on identification oil pumping electromechanical parameters curve characterized by comprising
Data acquisition: utilizing electrical parameter acquisition device, acquires the operating parameter in the pumping unit duty cycle, obtains each electrical parameter
According to, and store record；
Data processing: periodic electrical parameter is filtered according to maintenance data filtering algorithm, and it is bent to obtain smooth electricity ginseng
Line；
Comparing: multiple groups electricity ginseng curve is compared, the final position for determining electricity ginseng curve bottom dead centre.
2. the method for pumping unit lower dead point position on the electromechanical ginseng curve of identification oil pumping as described in claim 1, which is characterized in that
The electrical parameter evidence of more than two complete cycles of pumping unit duty cycle should be at least acquired for data acquisition.
3. the method for pumping unit lower dead point position on the electromechanical ginseng curve of identification oil pumping as claimed in claim 2, which is characterized in that
The time interval of adjacent collection period is not more than 120 milliseconds, the predominantly three-phase current, three-phase voltage and three of the electrical parameter evidence
The data of phase power.
4. the method for pumping unit lower dead point position on the electromechanical ginseng curve of identification oil pumping as described in claim 1, which is characterized in that
The data handling procedure includes the format conversion to the electrical parameter evidence of acquisition, is filtering algorithm readable by Data Format Transform
According to format.
5. the method for pumping unit lower dead point position on the electromechanical ginseng curve of identification oil pumping as claimed in claim 4, which is characterized in that
The data handling procedure further includes to the electrical parameter in collected complete cycle according to progress validity check, described to data
Validity check process complete after the format conversion.
6. the method for pumping unit lower dead point position on the electromechanical ginseng curve of identification oil pumping as claimed in claim 5, which is characterized in that
For the electrical parameter with validity according to being filtered after the data processing, stable electricity ginseng curve is finally obtained.
7. the method for pumping unit lower dead point position on the electromechanical ginseng curve of identification oil pumping as described in claim 1, which is characterized in that
The data procedures are that the filtered electricity ginseng curve of multiple groups is overlapped and is compared by comparison, obtain electrical parameter according to periodically most
Small value, and minimum value occur time interval it is identical, minimum value substantially close to, determine minimum value be lower dead point position, obtain list
One lower dead point position.
8. the method for pumping unit lower dead point position on the electromechanical ginseng curve of identification oil pumping as claimed in claim 7, which is characterized in that
The electricity ginseng curve of the single lower dead point position of multiple groups is acquired, superposition comparison finally determines accurate lower dead point position.
9. the method for pumping unit lower dead point position on the electromechanical ginseng curve of identification oil pumping as claimed in claim 7, which is characterized in that
The periodicity that oil pumping electromechanical parameters evidence is acquired in the electricity ginseng curve of single lower dead point position described in every group is identical.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810843497.1A CN109063629B (en) | 2018-07-27 | 2018-07-27 | Method for identifying bottom dead center position of oil pumping unit on electrical parameter curve of oil pumping unit |
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| CN201810843497.1A CN109063629B (en) | 2018-07-27 | 2018-07-27 | Method for identifying bottom dead center position of oil pumping unit on electrical parameter curve of oil pumping unit |
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Cited By (3)
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| CN110333070A (en) * | 2019-06-25 | 2019-10-15 | 吉林石油集团有限责任公司通信公司 | A kind of transmission obstacle identification method based on oil pumping electromechanical parameters |
| CN110410306A (en) * | 2019-08-13 | 2019-11-05 | 北京助创科技有限公司 | Working conditions of oil extractor diagnostic device and diagnostic method |
| CN114753812A (en) * | 2022-03-07 | 2022-07-15 | 大庆油田龙丰实业有限公司 | Beam-pumping unit electrical parameter cycle initial point identification system |
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| US20140129037A1 (en) * | 2012-11-06 | 2014-05-08 | Unico, Inc. | Apparatus and Method of Referencing a Sucker Rod Pump |
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| CN109063629B (en) | 2022-09-06 |
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