CN114000853A - Control method and control system of oil pumping unit and computer readable storage medium - Google Patents
Control method and control system of oil pumping unit and computer readable storage medium Download PDFInfo
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- CN114000853A CN114000853A CN202010735507.7A CN202010735507A CN114000853A CN 114000853 A CN114000853 A CN 114000853A CN 202010735507 A CN202010735507 A CN 202010735507A CN 114000853 A CN114000853 A CN 114000853A
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- 238000005086 pumping Methods 0.000 title claims abstract description 248
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000003860 storage Methods 0.000 title claims abstract description 29
- 238000006073 displacement reaction Methods 0.000 claims abstract description 42
- 230000002159 abnormal effect Effects 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
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- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Abstract
The present disclosure provides a control method and a control system of an oil pumping unit, and a computer readable storage medium, and belongs to the technical field of oil exploitation. The control method of the pumping unit comprises the steps of obtaining working parameters of the pumping unit, wherein the working parameters at least comprise the elongation of each steel wire rope hung by a beam hanger of the pumping unit, the axial displacement of a nut at the end part of a crank pin of the pumping unit and the vibration frequency of a middle shaft of the pumping unit; determining whether the pumping unit is abnormal or not according to the working parameters; and if the pumping unit is abnormal, controlling the pumping unit to stop. The elongation of every wire rope that beam-pumping unit polished rod eye hung, the axial displacement of the nut of beam-pumping unit crank pin tip, the centraxonial vibration frequency of beam-pumping unit can reflect the behavior at the three key position of beam-pumping unit respectively, judge the operating condition of beam-pumping unit according to working parameter to whether confirm the beam-pumping unit unusual, do not need the inspector to patrol and examine, danger when having not only avoided patrolling and examining, also avoided the misjudgment of missing that the naked eye observation judgement leads to moreover.
Description
Technical Field
The present disclosure relates to the field of oil extraction technologies, and in particular, to a control method and a control system for an oil pumping unit, and a computer-readable storage medium.
Background
The oil pumping machine is a machine for exploiting oil, and is commonly called a head knocking machine. The pumping unit is the most important lifting equipment in the rod pumping system.
The stable work of beam-pumping unit is the basis of guaranteeing the stable exploitation of oil, and beam-pumping unit appears unusually in work, not only can influence the normal exploitation of oil, but also can lead to the damage of equipment, causes the accident even, causes serious consequence.
In order to ensure the stable work of the pumping unit, an inspector is usually required to continuously inspect and find whether the pumping unit is abnormal or not in time. However, not only is there certain danger in direct inspection near the operating pumping unit, but also the inspector can only observe the oil pumping unit by naked eyes to judge the working condition of the pumping unit, so that the possibility of misjudgment and missed judgment is higher, the volume of the pumping unit is larger, the oil pumping unit is more difficult to see for higher parts, and the possibility of misjudgment and missed judgment is higher.
Disclosure of Invention
The embodiment of the disclosure provides a control method and a control system of an oil pumping unit and a computer readable storage medium.
In a first aspect, an embodiment of the present disclosure provides a method for controlling an oil pumping unit, where the method includes:
obtaining working parameters of the pumping unit, wherein the working parameters at least comprise the elongation of each steel wire rope hung by a beam hanger of the pumping unit, the axial displacement of a nut at the end part of a crank pin of the pumping unit and the vibration frequency of a middle shaft of the pumping unit;
determining whether the oil pumping unit is abnormal or not according to the working parameters;
and if the oil pumping unit is abnormal, controlling the oil pumping unit to stop.
Optionally, the determining whether the pumping unit is abnormal according to the working parameters includes:
determining that the pumping unit is abnormal when at least one of the following conditions is met:
the difference of the elongation of each steel wire rope hung by the beam hanger of the pumping unit exceeds a first preset threshold;
the axial displacement of the nut at the end of the crank pin of the pumping unit exceeds a second preset threshold value;
and the vibration frequency of the middle shaft of the pumping unit exceeds a third preset threshold value.
Optionally, the first preset threshold is 40mm, the second preset threshold is 20mm, and the third preset threshold is 50 Hz.
Optionally, before determining whether the pumping unit is abnormal according to the operating parameter, the method further includes:
and wirelessly transmitting the working parameters to an oilfield station control center at preset time intervals.
In a second aspect, an embodiment of the present disclosure further provides a control system of a pumping unit, where the control system includes:
the system comprises a plurality of sensors, a plurality of sensors and a controller, wherein the sensors are used for acquiring working parameters of the pumping unit, and the working parameters at least comprise the elongation of each steel wire rope hung by a beam hanger of the pumping unit, the axial displacement of a nut at the end part of a crank pin of the pumping unit and the vibration frequency of a middle shaft of the pumping unit;
and the controller is used for determining whether the pumping unit is abnormal or not according to the working parameters, and controlling the pumping unit to stop if the pumping unit is abnormal.
Optionally, the controller determines that the pumping unit is abnormal when at least one of the following is satisfied:
the difference of the elongation of each steel wire rope hung by the beam hanger of the pumping unit exceeds a first preset threshold;
the axial displacement of the nut at the end of the crank pin of the pumping unit exceeds a second preset threshold value;
and the vibration frequency of the middle shaft of the pumping unit exceeds a third preset threshold value.
Optionally, the first preset threshold is 40mm, the second preset threshold is 20mm, and the third preset threshold is 50 Hz.
Optionally, the control system further comprises: and the wireless transmission equipment is used for wirelessly transmitting the working parameters to the oilfield station control center at preset time intervals.
Optionally, the wireless transmission device includes a wireless gateway and a plurality of wireless nodes, the plurality of wireless nodes are connected to the plurality of sensors in a one-to-one correspondence, and the plurality of wireless nodes are connected to the wireless gateway.
Optionally, the plurality of sensors includes at least:
the first displacement sensor is positioned on a rope hanger of the oil pumping unit and used for acquiring the elongation of each steel wire rope hung by the rope hanger of the oil pumping unit;
the second displacement sensor is positioned at two ends of the crank pin of the oil pumping unit and is used for acquiring the axial displacement of the nut at the end part of the crank pin of the oil pumping unit;
and the vibration sensor is positioned on the end surface of the central shaft of the pumping unit and is used for acquiring the vibration frequency of the central shaft of the pumping unit.
In a third aspect, an embodiment of the present disclosure further provides a computer-readable storage medium, where at least one instruction is stored in the storage medium, and the instruction is loaded and executed by a processor to implement the method for controlling the pumping unit according to the first aspect.
The beneficial effects brought by the technical scheme provided by the embodiment of the disclosure at least comprise:
the elongation of every wire rope that beam-pumping unit polished rod eye hung, the axial displacement of the nut of beam-pumping unit crank pin tip, the behavior of the three key position of beam-pumping unit can be reflected respectively to the centraxonial vibration frequency of beam-pumping unit, through the working parameter who obtains the beam-pumping unit, judge the operating condition of beam-pumping unit according to working parameter, whether unusual with the definite beam-pumping unit, control the beam-pumping unit and stop when the beam-pumping unit is unusual, do not need the inspector to patrol and examine, and confirm according to working parameter, danger when not only having avoided patrolling and examining, but also avoided the misjudgment that the macroscopic view judgement leads to.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a flow chart of a control method of an oil pumping unit according to an embodiment of the present invention;
fig. 2 is a flow chart of another control method for a pumping unit according to an embodiment of the present invention;
fig. 3 is a block diagram of a control system of an oil pumping unit according to an embodiment of the present invention;
fig. 4 is a block diagram of a control system of another pumping unit according to an embodiment of the present invention;
fig. 5 shows a block diagram of a computer device according to an exemplary embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Fig. 1 is a flowchart of a control method for an oil pumping unit according to an embodiment of the present invention. As shown in fig. 1, the method includes:
s11: and acquiring working parameters of the oil pumping unit.
The working parameters at least comprise the elongation of each steel wire rope hung by the beam hanger of the pumping unit, the axial displacement of a nut at the end part of a crank pin of the pumping unit and the vibration frequency of a middle shaft of the pumping unit.
S12: and determining whether the pumping unit is abnormal or not according to the working parameters.
S13: and if the pumping unit is abnormal, controlling the pumping unit to stop.
The elongation of every wire rope that beam-pumping unit polished rod eye hung, the axial displacement of the nut of beam-pumping unit crank pin tip, the behavior of the three key position of beam-pumping unit can be reflected respectively to the centraxonial vibration frequency of beam-pumping unit, through the working parameter who obtains the beam-pumping unit, judge the operating condition of beam-pumping unit according to working parameter, whether unusual with the definite beam-pumping unit, control the beam-pumping unit and stop when the beam-pumping unit is unusual, do not need the inspector to patrol and examine, and confirm according to working parameter, danger when not only having avoided patrolling and examining, but also avoided the misjudgment that the macroscopic view judgement leads to.
Fig. 2 is a flow chart of another control method for an oil pumping unit according to an embodiment of the present invention. As shown in fig. 2, the method includes:
s21: and acquiring working parameters of the oil pumping unit.
The working parameters at least comprise the elongation of each steel wire rope hung by the beam hanger of the pumping unit, the axial displacement of a nut at the end part of a crank pin of the pumping unit and the vibration frequency of a middle shaft of the pumping unit.
The beam hanger of the pumping unit is usually hung with two steel wire ropes. The elongation of the steel wire rope is related to the size of the borne load, the load on the beam hanger of the pumping unit can be reflected according to the elongation of the steel wire rope, and the uniformity of the load borne by the beam hanger can be reflected by the difference between the elongations of different steel wire ropes.
The two ends of the crank pin of the oil pumping unit are both locked with nuts, and the axial displacement of the nuts at the end part of the crank pin of the oil pumping unit reflects the locking degree of the nuts.
The vibration frequency of the central shaft of the pumping unit can reflect the loosening condition of parts of the pumping unit, and although the specific part or parts can not be directly determined to be loosened according to the vibration frequency, whether the parts of the pumping unit are loosened or not can be reflected on the whole.
S22: and wirelessly transmitting the working parameters to an oilfield station control center at preset time intervals.
The oil field station control center is a control center of an area where an oil field is located, storage equipment of the oil field station control center can store various data in the oil field exploitation process, display equipment can display the various data, and the control equipment can control various equipment in the oil field. The operator can know the exploitation condition of the oil field and the running condition of various devices in the oil field station control center according to various data. And the working parameters are wirelessly transmitted to an oil field station control center, so that an operator can conveniently know the working condition of the pumping unit and control the pumping unit. The oil field exploitation field is generally harsh in environment, is not convenient for arranging a wired transmission line, and is more convenient for transmitting working parameters in a wireless transmission mode.
Alternatively, the preset time interval may be 12 hours to 24 hours.
The too long preset time interval can lead to the increase of production cost, and the too short preset time interval can lead to the difficulty of finding the abnormality of the pumping unit in time, and in time shut down the pumping unit. The production cost and the stability of the pumping unit can be comprehensively measured, and a proper preset time interval is selected. Illustratively, the preset time interval may be 12 hours.
S23: and determining whether the pumping unit is abnormal or not according to the working parameters.
Optionally, the pumping unit abnormality may be determined when at least one of the following is satisfied:
the difference of the elongation of each steel wire rope hung by the beam hanger of the pumping unit exceeds a first preset threshold value.
The axial displacement of the nut at the end of the crank pin of the pumping unit exceeds a second preset threshold.
And the vibration frequency of the middle shaft of the pumping unit exceeds a third preset threshold value.
Alternatively, the first preset threshold may be 40 mm. The difference between the elongation of each steel wire rope hung on the beam hanger of the pumping unit can reflect the uniformity of the load borne on the beam hanger. The larger the difference is, the more uneven the load is, the larger the deflection degree of the rope hanger is, and in order to ensure that the pumping unit can work normally, the load on the rope hanger is uniform as much as possible, and the rope hanger is kept stable as much as possible.
Alternatively, the second preset threshold may be 20 mm. The two ends of the crank pin of the oil pumping unit are both locked with nuts, and the axial displacement of the nuts at the end part of the crank pin of the oil pumping unit reflects the locking degree of the nuts. The safe and stable work of the crank of the oil pumping unit can be ensured only if the nuts at the two ends of the crank pin of the oil pumping unit are locked, and the axial displacement of the nut at any end exceeds a certain degree, so that the crank pin of the oil pumping unit is loosened, and danger is generated. Axial displacement of the nut at the end of the pumping unit crank pin beyond 20mm indicates that the nut has moved 20mm outward along the pumping unit crank pin and the nut has become loose.
Alternatively, the third preset threshold may be 50 Hz. The vibration frequency of the central shaft of the pumping unit can reflect whether parts of the pumping unit are loosened or not on the whole. Generally, the higher the vibration frequency of the central shaft of the pumping unit is, the more serious the loosening degree of the parts of the pumping unit is, and under the condition that the vibration frequency of the central shaft of the pumping unit does not exceed 50Hz, the firmer the installation of the parts of the pumping unit is, and the loosening condition does not occur.
S24: and if the pumping unit is abnormal, controlling the pumping unit to stop.
After the abnormity of the pumping unit is determined, the pumping unit is controlled to stop in time, so that the danger and the further damage of the pumping unit are avoided.
Illustratively, the pumping unit can be controlled to stop by an oil field station control center through a pumping unit control cabinet.
Fig. 3 is a block diagram of a control system of a pumping unit according to an embodiment of the present invention, and as shown in fig. 3, the control system of the pumping unit includes a plurality of sensors 10 and a controller 20.
The sensors 10 are used for acquiring working parameters of the pumping unit, and the working parameters at least comprise the elongation of each steel wire rope hung by a beam hanger of the pumping unit, the axial displacement of a nut at the end part of a crank pin of the pumping unit and the vibration frequency of a middle shaft of the pumping unit.
The controller 20 is used for determining whether the pumping unit is abnormal according to the working parameters, and controlling the pumping unit to stop if the pumping unit is abnormal.
The elongation of every wire rope that beam-pumping unit polished rod eye hung, the axial displacement of the nut of beam-pumping unit crank pin tip, the behavior of the three key position of beam-pumping unit can be reflected respectively to the centraxonial vibration frequency of beam-pumping unit, through the working parameter who obtains the beam-pumping unit, judge the operating condition of beam-pumping unit according to working parameter, whether unusual with the definite beam-pumping unit, control the beam-pumping unit and stop when the beam-pumping unit is unusual, do not need the inspector to patrol and examine, and confirm according to working parameter, danger when not only having avoided patrolling and examining, but also avoided the misjudgment that the macroscopic view judgement leads to.
Fig. 4 is a block diagram of another control system of a pumping unit according to an embodiment of the present invention, and as shown in fig. 4, in the control system of the pumping unit, a plurality of sensors 10 may include a first displacement sensor 101, a second displacement sensor 102, and a vibration sensor 103.
The first displacement sensor 101 is located on a polished rod eye of the pumping unit, and is used for acquiring the elongation of each steel wire rope hung by the polished rod eye of the pumping unit.
The second displacement sensors 102 are located at two ends of the crank pin of the pumping unit and are used for acquiring the axial displacement of the nut at the end part of the crank pin of the pumping unit.
The vibration sensor 103 is located on the end face of the central shaft of the pumping unit and used for acquiring the vibration frequency of the central shaft of the pumping unit.
The first displacement sensor 101 can be a polished rod displacement sensor, the main body part of the polished rod displacement sensor can be installed on a polished rod eye of the oil pumping unit, and the free end of a polished rod connected with the main body part can be connected to a kowtow machine.
The number of the second displacement sensors 102 can be two, and the two second displacement sensors 102 are respectively arranged at two ends of a crank pin of the pumping unit so as to respectively detect the axial displacement of nuts at two ends of the crank pin of the pumping unit.
The vibration sensor 103 can be attached to the end face of the central shaft of the pumping unit through a magnet so as to be convenient to install.
The plurality of sensors 10 may acquire the operating parameters of the pumping unit according to steps S11 and S21 in the foregoing method embodiments.
The controller 20 may be a computer device of an oilfield site control center.
Optionally, the control system may further include a wireless transmission device 30, and the wireless transmission device 30 is configured to wirelessly transmit the operating parameters to the oilfield station control center at preset time intervals.
The oil field station control center is a control center of an area where an oil field is located, storage equipment of the oil field station control center can store various data in the oil field exploitation process, display equipment can display the various data, and the control equipment can control various equipment in the oil field. The operator can know the exploitation condition of the oil field and the running condition of various devices in the oil field station control center according to various data. And the working parameters are wirelessly transmitted to an oil field station control center, so that an operator can conveniently know the working condition of the pumping unit and control the pumping unit. The oil field exploitation field is generally harsh in environment, is not convenient for arranging a wired transmission line, and is more convenient for transmitting working parameters in a wireless transmission mode.
Alternatively, the preset time interval may be 12 hours to 24 hours.
The too long preset time interval can lead to the increase of production cost, and the too short preset time interval can lead to the difficulty of finding the abnormality of the pumping unit in time, and in time shut down the pumping unit. The production cost and the stability of the pumping unit can be comprehensively measured, and a proper preset time interval is selected. Illustratively, the preset time interval may be 12 hours.
The wireless transmission device 30 may wirelessly transmit the operating parameters to the oilfield site control center according to step S22 in the foregoing method embodiment.
Alternatively, the wireless transmission device 30 may include a wireless gateway 301 and a plurality of wireless nodes 302, the plurality of wireless nodes 302 are connected to the plurality of sensors 10 in a one-to-one correspondence, and the plurality of wireless nodes 302 are connected to the wireless gateway 301. The wireless node 302 may receive the operating parameters acquired by the sensor 10 connected thereto, and transmit the operating parameters to the wireless gateway 301 in a wireless manner. The wireless gateway 301 can transmit the operating parameters transmitted from the wireless nodes 302 to the oilfield station control center through the internet.
The connection referred to herein is a communication connection, i.e., a connection that allows data transmission, and does not refer to a physical connection. For example, the one-to-one correspondence between the wireless nodes 302 and the sensors 10 means that a communication connection is established between the wireless node 302 and the corresponding sensor 10, so as to perform data transmission.
The operating parameters transmitted to the oilfield station control center may be stored by a device having a memory function to record the operating conditions of the pumping unit and may also be provided to the controller 20 located at the oilfield station control center.
The oil field station control center can also be provided with display equipment to display the received various working parameters, so that the operation personnel can conveniently check the parameters.
Optionally, the controller 20 may determine that the pumping unit is abnormal when at least one of the following is satisfied:
the difference of the elongation of each steel wire rope hung by the beam hanger of the pumping unit exceeds a first preset threshold;
the axial displacement of the nut at the end of the crank pin of the pumping unit exceeds a second preset threshold value;
and the vibration frequency of the middle shaft of the pumping unit exceeds a third preset threshold value.
Alternatively, the first preset threshold may be 40 mm. The difference between the elongation of each steel wire rope hung on the beam hanger of the pumping unit can reflect the uniformity of the load borne on the beam hanger. The larger the difference is, the more uneven the load is, the larger the deflection degree of the rope hanger is, and in order to ensure that the pumping unit can work normally, the load on the rope hanger is uniform as much as possible, and the rope hanger is kept stable as much as possible.
Alternatively, the second preset threshold may be 20 mm. The two ends of the crank pin of the oil pumping unit are both locked with nuts, and the axial displacement of the nuts at the end part of the crank pin of the oil pumping unit reflects the locking degree of the nuts. The safe and stable work of the crank of the oil pumping unit can be ensured only if the nuts at the two ends of the crank pin of the oil pumping unit are locked, and the axial displacement of the nut at any end exceeds a certain degree, so that the crank pin of the oil pumping unit is loosened, and danger is generated. Axial displacement of the nut at the end of the pumping unit crank pin beyond 20mm indicates that the nut has moved 20mm outward along the pumping unit crank pin and the nut has become loose.
Alternatively, the third preset threshold may be 50 Hz. The vibration frequency of the central shaft of the pumping unit can reflect whether parts of the pumping unit are loosened or not on the whole. Generally, the higher the vibration frequency of the central shaft of the pumping unit is, the more serious the loosening degree of the parts of the pumping unit is, and under the condition that the vibration frequency of the central shaft of the pumping unit does not exceed 50Hz, the firmer the installation of the parts of the pumping unit is, and the loosening condition does not occur.
The control system of the oil pumping unit also comprises an oil pumping unit control cabinet 40, and the oil pumping unit control cabinet 40 can be connected with the wireless gateway 301. The controller 20 can control the shutdown of the pumping unit through the pumping unit control cabinet.
The controller 20 may determine whether the pumping unit is abnormal according to step S23 in the foregoing method embodiment, and control the pumping unit to stop according to step S24.
Fig. 5 shows a block diagram of a computer device according to an exemplary embodiment of the present invention. As shown in fig. 5, the computer apparatus 500 includes a Central Processing Unit (CPU)501, a system memory 504 including a Random Access Memory (RAM)502 and a Read Only Memory (ROM)503, and a system bus 505 connecting the system memory 504 and the central processing unit 501. The computer device 500 also includes a basic input/output system (I/O system) 506, which facilitates the transfer of information between devices within the computer, and a mass storage device 507, which stores an operating system 513, application programs 514, and other program modules 515.
The basic input/output system 506 comprises a display 508 for displaying information and an input device 509, such as a mouse, keyboard, etc., for user input of information. Wherein a display 508 and an input device 509 are connected to the central processing unit 501 through an input output controller 510 connected to the system bus 505. The basic input/output system 506 may also include an input/output controller 510 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, input-output controller 510 also provides output to a display screen, a printer, or other type of output device.
The mass storage device 507 is connected to the central processing unit 501 through a mass storage controller (not shown) connected to the system bus 505. The mass storage device 507 and its associated computer-readable media provide non-volatile storage for the computer device 500. That is, the mass storage device 507 may include a computer readable medium (not shown) such as a hard disk or CD-ROM drive.
Without loss of generality, computer readable media may comprise computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes RAM, ROM, EPROM, EEPROM, flash memory or other solid state memory technology, CD-ROM, DVD, or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that computer storage media is not limited to the foregoing. The system memory 504 and mass storage device 507 described above may be collectively referred to as memory.
According to various embodiments of the invention, the computer device 500 may also operate as a remote computer connected to a network through a network, such as the Internet. That is, the computer device 500 may be connected to the network 512 through the network interface unit 511 connected to the system bus 505, or may be connected to other types of networks or remote computer systems (not shown) using the network interface unit 511.
The memory further includes one or more programs, and the one or more programs are stored in the memory and configured to be executed by the CPU. The one or more programs include instructions for implementing the control method of the pumping unit according to the embodiment of the present invention.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, where when instructions in the storage medium are executed by a processor of a control system of an oil pumping unit, the control system of the oil pumping unit is enabled to execute the control method of the oil pumping unit provided in any one of fig. 1 to 2.
A computer program product containing instructions which, when run on a computer, cause the computer to carry out the instructions of the method of controlling a pumping unit as provided in any one of figures 1-2.
It should be noted that: in the control system of the pumping unit provided in the above embodiment, when the pumping unit is controlled, only the division of the functional modules is illustrated, and in practical application, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the control system of the pumping unit and the control method embodiment of the pumping unit provided by the above embodiments belong to the same concept, and the specific implementation process is detailed in the method embodiment and is not described herein again.
It will be understood by those skilled in the art that all or part of the steps of implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.
Claims (11)
1. A method of controlling a pumping unit, the method comprising:
obtaining working parameters of the pumping unit, wherein the working parameters at least comprise the elongation of each steel wire rope hung by a beam hanger of the pumping unit, the axial displacement of a nut at the end part of a crank pin of the pumping unit and the vibration frequency of a middle shaft of the pumping unit;
determining whether the oil pumping unit is abnormal or not according to the working parameters;
and if the oil pumping unit is abnormal, controlling the oil pumping unit to stop.
2. The method of claim 1, wherein said determining whether the pumping unit is abnormal based on the operating parameter comprises:
determining that the pumping unit is abnormal when at least one of the following conditions is met:
the difference of the elongation of each steel wire rope hung by the beam hanger of the pumping unit exceeds a first preset threshold;
the axial displacement of the nut at the end of the crank pin of the pumping unit exceeds a second preset threshold value;
and the vibration frequency of the middle shaft of the pumping unit exceeds a third preset threshold value.
3. The method of claim 2, wherein the first predetermined threshold is 40mm, the second predetermined threshold is 20mm, and the third predetermined threshold is 50 Hz.
4. The method of claim 1, wherein prior to determining whether the pumping unit is abnormal based on the operating parameter, the method further comprises:
and wirelessly transmitting the working parameters to an oilfield station control center at preset time intervals.
5. A control system for a pumping unit, the control system comprising:
the system comprises a plurality of sensors, a plurality of sensors and a controller, wherein the sensors are used for acquiring working parameters of the pumping unit, and the working parameters at least comprise the elongation of each steel wire rope hung by a beam hanger of the pumping unit, the axial displacement of a nut at the end part of a crank pin of the pumping unit and the vibration frequency of a middle shaft of the pumping unit;
and the controller is used for determining whether the pumping unit is abnormal or not according to the working parameters, and controlling the pumping unit to stop if the pumping unit is abnormal.
6. The control system of a pumping unit of claim 5, wherein the controller determines that the pumping unit is abnormal when at least one of:
the difference of the elongation of each steel wire rope hung by the beam hanger of the pumping unit exceeds a first preset threshold;
the axial displacement of the nut at the end of the crank pin of the pumping unit exceeds a second preset threshold value;
and the vibration frequency of the middle shaft of the pumping unit exceeds a third preset threshold value.
7. The control system of a pumping unit according to claim 6, wherein the first preset threshold is 40mm, the second preset threshold is 20mm, and the third preset threshold is 50 Hz.
8. The control system of a pumping unit of claim 5, further comprising: and the wireless transmission equipment is used for wirelessly transmitting the working parameters to the oilfield station control center at preset time intervals.
9. The control system of the pumping unit of claim 8, wherein the wireless transmission device comprises a wireless gateway and a plurality of wireless nodes, the plurality of wireless nodes are connected with the plurality of sensors in a one-to-one correspondence, and the plurality of wireless nodes are connected with the wireless gateway.
10. The control system of a pumping unit of claim 5, wherein the plurality of sensors comprises at least:
the first displacement sensor is positioned on a rope hanger of the oil pumping unit and used for acquiring the elongation of each steel wire rope hung by the rope hanger of the oil pumping unit;
the second displacement sensor is positioned at two ends of the crank pin of the oil pumping unit and is used for acquiring the axial displacement of the nut at the end part of the crank pin of the oil pumping unit;
and the vibration sensor is positioned on the end surface of the central shaft of the pumping unit and is used for acquiring the vibration frequency of the central shaft of the pumping unit.
11. A computer readable storage medium having stored therein at least one instruction, which is loaded and executed by a processor to implement the method of controlling a pumping unit according to any of claims 1 to 4.
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Citations (4)
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| JP2000030162A (en) * | 1998-07-10 | 2000-01-28 | Ntt Advanced Technology Corp | Defense management system |
| CN103281372A (en) * | 2013-05-29 | 2013-09-04 | 滁州友林科技发展有限公司 | Pumping unit intelligent control method |
| CN106865375A (en) * | 2017-02-23 | 2017-06-20 | 太原理工大学 | Hoisting container hanging steel rope on-line monitoring system and method |
| CN110685644A (en) * | 2019-09-18 | 2020-01-14 | 华油国新(北京)能源科技有限公司 | Pumping unit operation monitoring device and fault early warning system |
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2020
- 2020-07-28 CN CN202010735507.7A patent/CN114000853A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000030162A (en) * | 1998-07-10 | 2000-01-28 | Ntt Advanced Technology Corp | Defense management system |
| CN103281372A (en) * | 2013-05-29 | 2013-09-04 | 滁州友林科技发展有限公司 | Pumping unit intelligent control method |
| CN106865375A (en) * | 2017-02-23 | 2017-06-20 | 太原理工大学 | Hoisting container hanging steel rope on-line monitoring system and method |
| CN110685644A (en) * | 2019-09-18 | 2020-01-14 | 华油国新(北京)能源科技有限公司 | Pumping unit operation monitoring device and fault early warning system |
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