CN107844101B - Production diagnosis optimization system and method for sucker-rod pump well - Google Patents
Production diagnosis optimization system and method for sucker-rod pump well Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 123
- 238000005457 optimization Methods 0.000 title claims abstract description 67
- 238000003745 diagnosis Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 26
- 238000004458 analytical method Methods 0.000 claims description 21
- 238000005086 pumping Methods 0.000 claims description 15
- 230000003044 adaptive effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000012800 visualization Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
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- 230000009467 reduction Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by quality surveillance of production
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32015—Optimize, process management, optimize production line
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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
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- 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 invention discloses a production diagnosis optimization system and method for a sucker-rod pump well, belongs to the field of oil exploitation, and solves the technical problem that the production efficiency of an oil field is low due to the fact that the traditional production diagnosis method for the sucker-rod pump well is poor in monitoring capability. The system comprises: the acquisition device is used for acquiring production data of the sucker rod pump well; the diagnosis device is used for diagnosing the production condition of the sucker-rod pump well according to the collected production data; the optimization device is used for generating an optimization control instruction for optimizing the production condition of the sucker-rod pump well according to the diagnosis result; the control device is used for carrying out optimized control on the production condition of the sucker-rod pump well according to the optimized control instruction; and the communication device is used for sending the production data acquired by the acquisition device to the diagnosis device and sending the optimization control command generated by the optimization device to the control device.
Description
Technical Field
The invention relates to the technical field of oil exploitation, in particular to a production diagnosis optimization system and method for a sucker-rod pump well.
Background
At present, the production proportion of oil wells in China is more than 95 percent by adopting sucker rod pumps, and the core of oil well production is to improve the production management technical level of sucker rod pump wells. The operation condition of the sucker rod pump well directly affects the yield of the oil field, and huge loss can be caused if the fault condition in operation is not discovered and processed in time, so that the production condition of the sucker rod pump well needs to be tracked, known and analyzed in real time in actual production.
At present, technologies for fault diagnosis and real-time early warning of sucker-rod pump wells are increasingly perfected, various parameters of an oil pumping unit and a well head are monitored in real time, the monitored parameters are compared with empirical values of the parameters and theoretical calculation values based on the parameters, and whether the oil pumping unit fails or not is diagnosed according to comparison results, so that an alarm is given when the oil pumping unit fails. The method for diagnosing the production condition replaces the traditional mode of diagnosing the production condition by depending on manual inspection to a certain extent, and improves certain production efficiency. However, the method has single function and hysteresis, has poor monitoring capability on the sucker-rod pump well, can only generate response after a fault occurs, can only manually check the fault condition after the fault occurs, and then performs corresponding adjustment operation on the sucker-rod pump well, so that the production efficiency is still low, and the method cannot meet the requirement of current oilfield production development.
Therefore, a system and a method for diagnosing and optimizing production of a sucker-rod pump well are needed, which can effectively improve the production efficiency of the sucker-rod pump well, optimize production, and save energy and reduce consumption.
Disclosure of Invention
The invention aims to provide a production diagnosis optimization system and method for a sucker-rod pump well, which aim to solve the technical problem that the production efficiency of an oil field is lower due to poor monitoring capability of the traditional production diagnosis method for the sucker-rod pump well.
The invention provides a production diagnosis optimization system for a sucker-rod pump well, which comprises:
the acquisition device is used for acquiring production data of the sucker rod pump well;
the diagnosis device is used for diagnosing the production condition of the sucker-rod pump well according to the collected production data;
the optimization device is used for generating an optimization control instruction for optimizing the production condition of the sucker-rod pump well according to the diagnosis result;
the control device is used for carrying out optimized control on the production condition of the sucker-rod pump well according to the optimized control instruction;
and the communication device is used for sending the production data acquired by the acquisition device to the diagnosis device and sending the optimization control command generated by the optimization device to the control device.
The production data of the sucker-rod pump well collected by the collecting device comprises: indicator diagram, stroke, sprint, motor current, motor voltage, wellhead oil pressure, wellhead casing pressure, wellhead fluid temperature and angular displacement.
The collection device comprises: indicator, pressure transmitter, temperature transmitter and power tester.
The communication device transmits the production data and the optimization control instruction through a radio station, GPRS communication, CDMA communication, a wireless bridge or a wired optical cable communication network.
And the control device performs optimal control on intermittent pumping, self-adaptive operation parameters, variable frequency speed regulation of the motor, overcurrent and outage of the sucker-rod pump well and performs automatic alarm according to the optimal control instruction.
The invention provides a production diagnosis optimizing system of a sucker-rod pump well, which further comprises:
and the display device is used for displaying the production data acquired by the acquisition device and the diagnosis result obtained by the diagnosis device.
The invention also provides a production diagnosis optimization method for the sucker-rod pump well, which comprises the following steps:
collecting production data of the sucker-rod pump well;
diagnosing the production condition of the sucker-rod pump well according to the collected production data;
generating an optimized control instruction for optimizing the production condition of the sucker-rod pump well according to the diagnosis result;
and carrying out optimized control on the production condition of the sucker-rod pump well according to the optimized control instruction.
The collected production data for the sucker-rod pump well includes: indicator diagram, stroke, sprint, motor current, motor voltage, wellhead oil pressure, wellhead casing pressure, wellhead fluid temperature and angular displacement.
In the step of optimally controlling production conditions of the sucker-rod pump well, the step of:
and performing optimal control on intermittent pumping, self-adaptive operation parameters, variable frequency speed regulation of a motor, overcurrent and power failure of the sucker-rod pump well according to the optimal control instruction, and performing automatic alarm.
Further, the method of determining the adaptive operating parameter is as follows:
the method comprises the steps of optimizing the speed of the motor in a period according to structural parameters and characteristic parameters of the motor of the pumping unit, optimizing the speed of the motor in the period based on power curve expansion, suspension point speed curve optimization and Fourier expansion approximation, and optimizing to form an adaptive driving parameter optimization result through coupled analysis of motion analysis, load analysis, torque analysis and power analysis.
Further, in step 103, an optimization control instruction is generated according to the diagnosis result, and the adjustment range of the variable speed frequency in the determination parameter of the adaptive operation parameter is 5-60 Hz of the average frequency.
According to the production diagnosis optimization system and method for the sucker-rod pump well, the production data in various aspects of the sucker-rod pump well are collected, analyzed and diagnosed in real time, and optimized control is performed in a targeted manner, so that timely response and processing of faults of the sucker-rod pump well are realized, the sucker-rod pump well is optimized and controlled in real time according to the production condition of the sucker-rod pump well, remote control of the sucker-rod pump well is realized, decision support is provided for production command, remote production operation visualization is realized, production operation automation is realized, the production efficiency of the sucker-rod pump well is improved, the well lying time and well lying rate are reduced, production is optimized, and energy conservation and consumption reduction are realized.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the following briefly introduces the drawings required in the description of the embodiments:
FIG. 1 is a schematic diagram of a sucker-rod pump well production diagnostic optimization system provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of an application of a sucker-rod pump well production diagnostic optimization system provided by an embodiment of the present invention;
FIG. 3 is a flow chart of a method for optimizing production diagnostics for a sucker-rod pump well according to an embodiment of the present invention.
Fig. 4 is a method for determining adaptive operating parameters of a sucker-rod pump well in generating an optimized control command according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
An embodiment of the present invention provides a production diagnosis optimization system for a sucker-rod pump well, as shown in fig. 1, the system includes: the device comprises a collecting device 2, a diagnosing device 3, an optimizing device 4, a control device 5 and a communication device 6. Wherein the acquisition device 2 is used for acquiring production data of the sucker rod pump well 1. The diagnosis device 3 is used for diagnosing the production condition of the sucker rod pump well 1 according to the production data collected by the collection device 2. The optimizing device 4 is used for generating an optimizing control instruction for optimizing the production condition of the sucker rod pump well according to the diagnosis result obtained by the diagnosis device 3. The control device 5 is used for carrying out optimized control on the production condition of the sucker-rod pump well 1 according to the optimized control command. The communication device 6 is used for transmitting the production data acquired by the acquisition device 2 to the diagnosis device 3 and transmitting the optimization control command generated by the optimization device 4 to the control device 5.
In the embodiment of the invention, the acquisition device 2 consists of a dynamometer, a pressure transmitter, a temperature transmitter and a power tester. The power tester is used for collecting indicator diagram, stroke and sprint data of the sucker-rod pump well, the power tester is used for collecting motor current and motor voltage data of the pumping unit, the pressure transmitter is used for collecting wellhead oil pressure and wellhead casing pressure data of the sucker-rod pump well, and the temperature transmitter is used for collecting wellhead fluid temperature data of the sucker-rod pump well.
The communication means 6 receives the collected production data from the collection means 2 by wire or wirelessly and then transmits the production data to the diagnosis means 3 and the optimization means 4. The communication device 6 can transmit the production data by radio station, GPRS communication, CDMA communication, wireless bridge or wired optical cable communication network.
The diagnosis device 3 receives the production data sent by the communication device 6 in real time, and then performs data summarization and comprehensive analysis on indicator diagram, stroke, sprint, motor current, motor voltage, wellhead oil pressure, wellhead casing pressure and wellhead fluid temperature data of the sucker-rod pump well, so as to judge how the production condition of the sucker-rod pump well is, whether the sucker-rod pump well is in fault, and the position and the fault type of the fault.
Further, the production diagnosis optimization system for the sucker-rod pump well provided by the embodiment of the invention further comprises: and a display device for displaying the production data and the diagnosis result of the diagnosis device in real time, namely displaying the production data received by the diagnosis device in real time and simultaneously displaying the diagnosis result obtained by the diagnosis device according to the production data.
The real-time diagnosis and display of the production data of the sucker-rod pump well through the diagnosis device and the display device can realize the visualization and real-time monitoring of the production condition of the sucker-rod pump well.
The optimization device 4 receives the diagnosis result generated by the diagnosis device in real time, optimizes the production condition of the sucker-rod pump well based on the diagnosis result, and correspondingly generates an optimization control instruction, so as to respond and process the abnormal state of the sucker-rod pump well in time.
The communication device 6 receives the optimization control command generated by the optimization device 4, and then sends the optimization control command to the control device 5 through a radio station, GPRS communication, CDMA communication, a wireless bridge, or a wired optical cable communication network.
The control device 5 performs optimal control on intermittent pumping, self-adaptive operation parameters, variable frequency speed regulation, overcurrent and outage of the motor of the sucker-rod pump well and performs automatic alarm according to the optimal control instruction. For example, when a sucker-rod pump well has a serious fault, the diagnosis device analyzes production data to obtain a relevant diagnosis result of the serious fault of the sucker-rod pump well, the optimization device generates an optimized control instruction for powering off, shutting down and alarming the sucker-rod pump well according to the result and transmits the optimized control instruction to the control device in real time through the communication device, and the control device performs power off, shutting down and automatic alarming on the sucker-rod pump well according to the optimized control instruction. For another example, when the sucker-rod pump well is slightly abnormal, the diagnosis device analyzes the production data to obtain a related diagnosis result of the slight abnormality, the optimization device generates an optimization control instruction for performing optimization processing on the slight abnormality according to the diagnosis result, and the control device performs corresponding intermittent pumping parameter adjustment on the sucker-rod pump well according to the optimization control instruction, or performs variable frequency speed regulation on the motor, or adjusts other self-adaptive operation parameters of the sucker-rod pump well, so that the slight abnormality problem is solved, and the sucker-rod pump well is recovered to a normal oil production state.
In one embodiment of the present invention, as shown in fig. 2, the functions of the communication Unit are implemented by a Remote Terminal Unit 7 (RTU) and a data transmission network 8, and the RTU is composed of an input/output module, a data communication part, a power supply part, an auxiliary component and a cabinet. The RTU receives and stores the collected production data in real time and sends the data to a rear remote monitoring center 9 through a data transmission network 8.
The functions of the diagnosis device and the optimization device are realized by a data server of the remote monitoring center 9, a computer and diagnosis and optimization software of the sucker-rod pump system. The remote control center 9 records, comprehensively processes and applies and analyzes the collected data information, displays the data information in real time, provides production command decision support, and realizes remote production operation visualization and production operation automation. The remote monitoring center 9 feeds back the optimization control instruction to the control device 4 through the data transmission network 8 and the RTU, and the function of the control device 4 is realized by the intelligent integrated control cabinet.
An embodiment of the present invention further provides a method for optimizing production diagnosis of a sucker-rod pump well, as shown in fig. 3, the method includes: step 101 to step 104.
In step 101, production data of a sucker rod pump well is collected;
in step 102, diagnosing the production condition of the sucker-rod pump well according to the collected production data;
in step 103, generating an optimization control instruction for optimizing the production condition of the sucker-rod pump well according to the diagnosis result;
in step 104, the production condition of the sucker-rod pump well is optimally controlled according to the optimal control instruction.
Further, the production data of the sucker rod pump well collected in step 101 includes: indicator diagram, stroke, sprint, motor current, motor voltage, wellhead oil pressure, wellhead casing pressure, wellhead fluid temperature and angular displacement.
Further, the step of optimally controlling the production condition of the sucker rod pump well comprises: and performing optimal control on intermittent pumping, self-adaptive operation parameters, variable frequency speed regulation of a motor, overcurrent and power failure of the sucker-rod pump well according to the optimal control instruction, and performing automatic alarm.
Further, in step 103, an optimization control instruction is generated according to the diagnosis result, the adaptive operation parameters of the optimization control instruction are determined as shown in fig. 4, the motor speed in the period is optimized according to the structural parameters and the characteristic parameters of the motor of the pumping unit, the optimization method is based on power curve expansion, suspension point speed curve optimization and fourier expansion approximation, and the optimization results are optimized and formed through multi-factor coupling analysis such as motion analysis, load analysis, torque analysis and power analysis.
Further, in step 103, an optimization control instruction is generated according to the diagnosis result, and the adjustment range of the variable speed frequency in the determination parameter of the adaptive operation parameter is 5-60 Hz of the average frequency.
According to the production diagnosis optimization system and method for the sucker-rod pump well, the production data in various aspects of the sucker-rod pump well are collected, analyzed and diagnosed in real time, and optimized control is performed in a targeted manner, so that timely response and processing of faults of the sucker-rod pump well are realized, the sucker-rod pump well is optimized and controlled in real time according to the production condition of the sucker-rod pump well, remote control of the sucker-rod pump well is realized, decision support is provided for production command, remote production operation visualization is realized, production operation automation is realized, the production efficiency of the sucker-rod pump well is improved, the well lying time and well lying rate are reduced, production is optimized, and energy conservation and consumption reduction are realized.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A system for production diagnostic optimization of a sucker-rod pump well, comprising:
the acquisition device is used for acquiring production data of the sucker rod pump well;
the diagnosis device is used for diagnosing the production condition of the sucker-rod pump well according to the collected production data;
the optimization device is used for generating an optimization control instruction for optimizing the production condition of the sucker rod pump well according to the diagnosis result and optimizing the speed of the motor in a period according to the structural parameters and the characteristic parameters of the motor of the pumping unit, and the optimization method is based on power curve expansion, suspension point speed curve optimization and Fourier expansion approximation and optimizes to form an adaptive operation parameter optimization result through the coupling analysis of motion analysis, load analysis, torque analysis and power analysis;
the control device is used for carrying out optimized control on the production condition of the sucker-rod pump well according to an optimized control instruction, wherein the control device carries out optimized control on intermittent pumping, self-adaptive operation parameters, variable frequency speed regulation of a motor, overcurrent and power failure of the sucker-rod pump well and automatic alarming according to the optimized control instruction;
and the communication device is used for sending the production data acquired by the acquisition device to the diagnosis device and sending the optimization control command generated by the optimization device to the control device.
2. The sucker-rod pump well production diagnostic optimization system of claim 1, wherein the production data of the sucker-rod pump well collected by the collection device comprises: indicator diagram, stroke, sprint, motor current, motor voltage, wellhead oil pressure, wellhead casing pressure, wellhead fluid temperature and angular displacement.
3. The sucker-rod pump well production diagnostic optimization system of claim 1, wherein the acquisition device comprises: indicator, pressure transmitter, temperature transmitter and power tester.
4. The sucker-rod pump well production diagnostic optimization system of claim 1, wherein the communication device transmits the production data and the optimization control instructions via a radio station, GPRS communication, CDMA communication, wireless bridge, or a wireline cable communication network.
5. The sucker-rod pump well production diagnostic optimization system of claim 1, further comprising:
and the display device is used for displaying the production data acquired by the acquisition device and the diagnosis result obtained by the diagnosis device.
6. A method for producing diagnostic optimization for a sucker-rod pump well, comprising:
collecting production data of the sucker-rod pump well;
diagnosing the production condition of the sucker-rod pump well according to the collected production data;
generating an optimization control instruction for optimizing the production condition of the sucker rod pump well according to the diagnosis result, and optimizing the speed of the motor in a period according to the structural parameters and the characteristic parameters of the pumping unit, wherein the optimization method is based on power curve expansion, suspension point speed curve optimization and Fourier expansion approximation, and an adaptive operation parameter optimization result is optimized and formed through the coupling analysis of motion analysis, load analysis, torque analysis and power analysis;
carrying out optimized control on the production condition of the sucker-rod pump well according to the optimized control instruction, wherein the optimized control comprises the following steps: and performing optimal control on intermittent pumping, self-adaptive operation parameters, variable frequency speed regulation of a motor, overcurrent and power failure of the sucker-rod pump well according to the optimal control instruction, and performing automatic alarm.
7. The sucker-rod pump well production diagnostic optimization method of claim 6, wherein the collected production data of the sucker-rod pump well comprises: indicator diagram, stroke, sprint, motor current, motor voltage, wellhead oil pressure, wellhead casing pressure, wellhead fluid temperature and angular displacement.
8. The sucker-rod pump well production diagnostic optimization method of claim 7, wherein the shift frequency in the adaptive operating parameter control parameters is adjusted in a range of 5 to 60Hz average frequency.
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