CN117492406A - Remote control method, device and equipment for hydraulic pumping unit system - Google Patents
Remote control method, device and equipment for hydraulic pumping unit system Download PDFInfo
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- 238000005086 pumping Methods 0.000 title claims abstract description 179
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- 235000019198 oils Nutrition 0.000 claims description 94
- 238000004146 energy storage Methods 0.000 claims description 60
- 239000007788 liquid Substances 0.000 claims description 37
- 239000003129 oil well Substances 0.000 claims description 30
- 238000010248 power generation Methods 0.000 claims description 28
- 235000019476 oil-water mixture Nutrition 0.000 claims description 27
- 239000010720 hydraulic oil Substances 0.000 claims description 16
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- G—PHYSICS
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- 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
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- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/129—Adaptations of down-hole pump systems powered by fluid supplied from outside the borehole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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- 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
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Abstract
The invention belongs to the technical field of remote control and regulation systems, and particularly relates to a control method, a device and equipment for a hydraulic pumping unit system based on remote control, wherein an execution main body of the control method is a remote control platform, all data processing is performed on the remote control platform, a computing processor with high computing power computing capability is not required to be arranged at one end of the hydraulic pumping unit, and the cost and maintenance cost of the equipment are reduced. Furthermore, the water content of the oil mixture can be obtained only according to the current value of the direct current motor of the hydraulic pumping unit system, so that the stroke and the frequency of the hydraulic pumping unit system are determined again, and the method is simple and practical. Further, whether a first standard current curve corresponding to a current curve is available or not is verified through pressure curves of two oil ways of the hydraulic system, accuracy of stroke and stroke frequency setting is improved, oil pumping efficiency and service life of the hydraulic pumping unit system are improved, and the like.
Description
Technical Field
The invention relates to the technical field of remote control and regulation systems, in particular to a control method, a device and equipment for a hydraulic pumping unit system based on remote control.
Background
In the working process of the hydraulic pumping unit, the stroke and the stroke frequency of the hydraulic pumping unit are required to be adjusted according to the water content of the underground oil-water mixture. In the prior art, various solutions exist, such as detecting the pumped oil-water mixture, and then adjusting the stroke and the stroke frequency of the hydraulic pumping unit according to the detection result, so that the defects of long detection period, need to be equipped with a checking person and the like exist; or, if the load sensor, the displacement sensor and the electric parameter sensor are arranged on the wellhead pumping unit, an oil well indicator diagram is obtained every 5-15 minutes, an oil well pumping diagram is calculated according to the indicator diagram, the area of the pumping diagram is obtained, and the water content in the produced liquid is obtained according to the fact that the area of the pumping diagram is equal to the work done by lifting the produced liquid in the pump cylinder to the ground, so that the problems of complex calculation and the like exist. Further, each pumping unit needs to be provided with a calculation processor, and running programs or parameters and the like need to be maintained and updated independently, so that equipment cost and maintenance cost are increased.
In addition, in the prior art, motors of the hydraulic pumping unit are all alternating current motors, the starting power is more than 8 times of the actual working power, and compared with a power supply powered by an energy storage battery, the motor of the hydraulic pumping unit has a huge impact on the energy storage battery during starting.
Disclosure of Invention
The invention mainly aims to provide a control method, a device and equipment for a hydraulic pumping unit system based on remote control, and aims to solve the technical problems that an alternating current motor of a hydraulic pumping unit is large in starting impact, stroke and stroke frequency are locally calculated and adjusted, the calculation method is complex, and maintenance cost is high.
In order to achieve the above object, a first aspect of the present invention provides a method for controlling a hydraulic pumping unit system based on remote control, including:
when a sucker rod of the hydraulic pumping unit system starts a return stroke action, the remote control platform acquires a motor current value of a direct current motor of an oil pump of the hydraulic pumping unit system in real time, and acquires a first hydraulic value in a first oil inlet and outlet pipe of an oil cylinder in the hydraulic pumping unit system and a second hydraulic value in a second oil inlet and outlet pipe of the oil cylinder in the hydraulic pumping unit system; the direct current motor is powered by an energy storage battery, and the electric energy stored by the energy storage battery is generated by a power generation device based on wind energy and/or solar energy power generation;
generating a current curve of a motor current value and time of an oil cylinder of the hydraulic pumping unit system in a preset return cycle of the pumping rod; and generating a first hydraulic pressure curve of the first hydraulic pressure value and time and a second hydraulic pressure curve of the second hydraulic pressure value and time;
Searching a first standard current curve with highest similarity with the current curve in a preset standard current curve library, wherein a plurality of standard current curves are stored in the standard current curve library, and each standard current curve corresponds to the water content of an oil-water mixture and also corresponds to a standard pressing curve and a standard pressure release curve;
searching a second standard pressure curve with highest similarity with the first hydraulic curve in a preset standard pressure curve library;
searching a second standard pressure release curve with highest similarity with the second hydraulic curve in a preset standard pressure release curve library;
based on the first standard current curve, determining a corresponding water content, a first standard pressure applying curve and a first standard pressure releasing curve;
judging whether the similarity of the first standard pressure applying curve and the second standard pressure applying curve is larger than a preset threshold value or not, and judging whether the similarity of the first standard pressure releasing curve and the second standard pressure releasing curve is larger than the preset threshold value or not;
if so, determining a first water content of a currently extracted oil-water mixture in an oil well corresponding to the hydraulic pumping unit system based on the first standard current curve;
And generating control instructions of corresponding strokes and frequency of strokes based on the first water content, and sending the control instructions to the hydraulic pumping unit system so as to control the strokes and the frequency of strokes of the hydraulic pumping unit system.
Further, before the step of generating the current curve of the motor current value and time in the preset return cycle of the sucker rod, the oil cylinder of the hydraulic oil pumping unit system includes:
acquiring a first weight value of an experimental sucker rod and a second weight value of a balancing weight;
based on the first gravity value and the second gravity value, testing to obtain a standard time curve of the current values of the motor in oil-water mixtures with different depths and different water contents during return stroke of the sucker rod;
a list of relationships is generated regarding the current profile and water cut of the sucker rod in the return stroke.
Further, the step of generating control instructions for the corresponding stroke and the number of strokes based on the first moisture content includes:
acquiring a first depth of an aquifer under the oil well and a second depth of the aquifer, which correspond to the hydraulic pumping unit system;
calculating the difference value between the first depth and the second depth to obtain the liquid level difference between the water level and the oil level under the oil well;
And generating control instructions of corresponding strokes and times of the strokes based on the liquid level difference and the first water content.
Further, the step of generating control instructions of the corresponding stroke and the number of strokes based on the liquid level difference and the water content includes:
acquiring a preset mapping table of water content, stroke and stroke frequency, and acquiring a first stroke value and a first stroke frequency value corresponding to the first water content;
judging whether the liquid level difference is smaller than a preset liquid level threshold value or not;
if yes, the first stroke value and the first stroke frequency value are adjusted based on the liquid level difference, a second stroke value and a second stroke frequency value are obtained, and the control instruction is generated based on the second stroke value and the second stroke frequency value;
if not, the control instruction is directly generated based on the first stroke value and the first stroke frequency value.
Further, the step of adjusting the first stroke value and the first stroke frequency value based on the liquid level difference to obtain a second stroke value and a second stroke frequency value includes:
calculating the ratio of the liquid level difference to the liquid level threshold;
searching a corresponding stroke adjusting value from a preset ratio-stroke mapping table based on the ratio, and searching a corresponding stroke adjusting value from a preset ratio-stroke mapping table;
And subtracting the stroke adjustment value from the first stroke value to obtain the second stroke value, and subtracting the stroke adjustment value from the first stroke value to obtain the second stroke value.
Further, each hydraulic pumping unit system is correspondingly provided with a group of energy power supply modules consisting of energy storage batteries and a power generation device based on wind energy and/or solar energy power generation; the oil field where the hydraulic pumping unit system is arranged is provided with a plurality of hydraulic pumping unit systems, and energy storage batteries of the hydraulic pumping unit systems are mutually and electrically connected and used for transferring electric energy; the control method further includes:
acquiring the stroke and the frequency of the stroke of each hydraulic pumping unit system, the electric storage capacity of an energy storage battery of an energy supply module corresponding to each hydraulic pumping unit system and the charging efficiency of a power generation device to the energy storage battery, and calculating the energy supply relation between each energy supply module and the corresponding hydraulic pumping unit system;
judging whether a first energy power supply module which cannot meet the continuous operation of the hydraulic pumping unit system exists or not, and whether a second energy power supply module which meets the continuous operation of the hydraulic pumping unit system exists or not;
If the first energy power supply module exists, a third energy power supply module meeting the preset requirement is screened out from the second energy power supply module, and the third energy power supply module is controlled to charge the first energy power supply module according to a preset charging strategy.
Further, the oil field is further provided with a public energy storage battery, and each energy storage battery is electrically connected with the public energy storage battery respectively so as to realize the mutual electrical connection of the energy storage batteries of the hydraulic pumping unit systems; the step of controlling the third energy power supply module to charge the first energy power supply module according to a preset charging strategy comprises the following steps:
controlling the third energy power supply module to charge the public energy storage battery;
and the public energy storage battery charges the first energy power supply module.
A second aspect of the present invention proposes a control device for a hydraulic pumping unit system based on remote control, comprising:
the remote control platform is used for acquiring a motor current value of a direct current motor of an oil pump of the hydraulic oil pumping unit system in real time when a sucker rod of the hydraulic oil pumping unit system starts a return stroke action, and acquiring a first hydraulic value in a first oil inlet and outlet pipe of an oil cylinder in the hydraulic oil pumping unit system and a second hydraulic value in a second oil inlet and outlet pipe of the oil cylinder in the hydraulic oil pumping unit system; the direct current motor is powered by an energy storage battery, and the electric energy stored by the energy storage battery is generated by a power generation device based on wind energy and/or solar energy power generation;
The generating unit is used for generating a current curve of a motor current value and time of an oil cylinder of the hydraulic pumping unit system in a preset return cycle of the pumping rod; and generating a first hydraulic pressure curve of the first hydraulic pressure value and time and a second hydraulic pressure curve of the second hydraulic pressure value and time;
the first searching unit is used for searching a first standard current curve with highest similarity with the current curve in a preset standard current curve library, wherein a plurality of standard current curves are stored in the standard current curve library, and each standard current curve corresponds to the water content of an oil-water mixture and also corresponds to a standard pressing curve and a standard pressure release curve;
the second searching unit is used for searching a second standard pressure curve with the highest similarity with the first hydraulic curve in a preset standard pressure curve library;
the third searching unit is used for searching a second standard pressure relief curve with highest similarity with the second hydraulic curve in a preset standard pressure relief curve library;
the first determining unit is used for determining a corresponding water content, a first standard pressure applying curve and a first standard pressure releasing curve based on the first standard current curve;
The judging unit is used for judging whether the similarity of the first standard pressure applying curve and the second standard pressure applying curve is larger than a preset threshold value or not and judging whether the similarity of the first standard pressure releasing curve and the second standard pressure releasing curve is larger than the preset threshold value or not;
the second determining unit is used for determining a first water content of the oil-water mixture currently extracted from the oil well corresponding to the hydraulic pumping unit system based on the first standard current curve if the oil-water mixture is the same;
and the production transmission control unit is used for generating control instructions of corresponding strokes and frequency of strokes based on the first water content and sending the control instructions to the hydraulic pumping unit system so as to control the strokes and the frequency of strokes of the hydraulic pumping unit system.
A third aspect of the present invention proposes a computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of any one of the above-mentioned remote-based control methods for hydraulic pumping unit systems when executing the computer program.
A fourth aspect of the invention proposes a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the remote-based control method of a hydraulic pumping unit system of any of the above.
The beneficial effects are that:
according to the control method for the hydraulic pumping unit system based on the remote control, all data processing is performed on the remote control platform, a calculation processor with high calculation capability is not required to be arranged at one end of the hydraulic pumping unit, and the cost and maintenance cost of equipment are reduced. Furthermore, the water content of the oil mixture can be obtained only according to the current value of the direct current motor of the hydraulic pumping unit system, so that the stroke and the frequency of the hydraulic pumping unit system are determined again, and the method is simple and practical. Further, whether a first standard current curve corresponding to a current curve is available or not is verified through pressure curves of two oil ways of the hydraulic system, accuracy of stroke and stroke frequency setting is improved, oil pumping efficiency and service life of the hydraulic pumping unit system are improved, and the like.
Drawings
FIG. 1 is a flow chart of a method for controlling a hydraulic pumping unit system based on remote control according to an embodiment of the invention;
FIG. 2 is a schematic block diagram of a control device based on a remote pair hydraulic pumping unit system according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a computer device according to an embodiment of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any module and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1, an embodiment of the present invention provides a control method for a hydraulic pumping unit system based on remote control, wherein an execution main body of the control method is a remote control platform, and the control method includes steps S1 to S7:
s1, when a sucker rod of the hydraulic pumping unit system starts a return stroke action, a remote control platform acquires a motor current value of a direct current motor of an oil pump of the hydraulic pumping unit system in real time, and acquires a first hydraulic value in a first oil inlet and outlet pipe of an oil cylinder in the hydraulic pumping unit system and a second hydraulic value in a second oil inlet and outlet pipe of the oil cylinder in the hydraulic pumping unit system; the direct current motor is powered by an energy storage battery, and the electric energy stored by the energy storage battery is generated by a power generation device based on wind energy and/or solar energy power generation.
As described in step S1, the remote control platform is a platform with computing capability, and may be a computer, a cloud server, or the like. The return stroke of the sucker rod refers to the sinking process of the sucker rod into an oil well. The oil cylinder comprises a rod cavity and a rodless cavity, the rod cavity and the rodless cavity are respectively communicated with a first oil inlet and outlet pipe and a second oil inlet and outlet pipe, and the first oil inlet and outlet pipe and the second oil inlet and outlet pipe are connected with an oil pump so as to realize that the telescopic movement of the oil cylinder rod is controlled by pumping hydraulic oil into the rod cavity or the rodless cavity, and accordingly the ascending and descending of the sucker rod are controlled. Further, the hydraulic pumping unit system generally further comprises a bracket, a fixed pulley, a belt, a balancing weight and the like, wherein the belt bypasses the fixed pulley, one end of the belt is connected with the pumping rod, the other end of the belt is connected with the balancing weight, and the oil cylinder drives the balancing weight to lift. In one embodiment, when the sucker rod descends, the oil cylinder drives the balancing weight to ascend so that the sucker rod descends in the oil well under the condition of self weight of the sucker rod and overcomes the tension, other friction and the like of the balancing weight; when the sucker rod rises, the oil cylinder drives the balancing weight to descend, so that the weight of the sucker rod, the weight of liquid in a lifting oil well, other friction force and the like are overcome under the cooperation of the balancing weight and the oil cylinder, and the lifting sucker rod rises in the oil well. It should be noted that, a first hydraulic pressure sensor may be disposed in the first oil inlet and outlet pipe to collect a first hydraulic pressure value, and a second hydraulic pressure sensor may be disposed in the second oil inlet and outlet pipe to collect a second hydraulic pressure value. The motor current value of the direct current motor can be obtained by using any current acquisition device in the prior art.
Further, one end of the hydraulic pumping unit system is further provided with a PLC module and a data transmission module, and the PLC module is respectively connected with the data transmission module, the current acquisition device, the first hydraulic sensor and the second hydraulic sensor and is used for transmitting the motor current value, the first hydraulic value and the second hydraulic value to the remote control platform through the data transmission module; and controlling the stroke frequency, stroke and the like of the oil cylinder based on the control command fed back by the remote control platform.
Further, the motor of the oil pump of the hydraulic pumping unit system is a direct current motor and is directly connected with the energy storage battery, compared with an alternating current motor used by the oil pump in the prior art, the direct current is converted into alternating current, the starting current of the alternating current motor is extremely high, the starting power is more than 8 times of the power, namely, the pure sine wave inverter is also 8 times of the power of the motor, and the impact on the energy storage battery is extremely high. The direct current of the energy storage battery is directly used without a pure sine wave inverter, conversion loss is reduced, the starting current of the direct current motor is far smaller than that of alternating current, and the extremely small energy storage battery can be started. It should be noted that, the energy source used in the hydraulic pumping unit system is new energy source (wind-light storage system), namely, the electricity in the energy storage battery is a power generation device from wind energy and/or solar power generation, and the hydraulic pumping unit system does not need to be connected with commercial power, and is energy-saving and environment-friendly. Therefore, the alternating current motor of the oil pump is changed into a direct current motor, and the energy loss can be reduced, so that the wind-solar energy storage system is optimized, and the popularization and the use of a zero-carbon system are facilitated.
S2, generating a current curve of a motor current value and time of an oil cylinder of the hydraulic pumping unit system in a preset return cycle of the pumping rod; and generating a first hydraulic pressure curve of the first hydraulic pressure value and time and a second hydraulic pressure curve of the second hydraulic pressure value and time.
As described in the above step S2, the return cycle of the sucker rod is the length of time for the oil cylinder to drive the balancing weight to the specified position, that is, the length of time for the oil cylinder to still operate even if the sucker rod stops descending due to excessive friction force during the descending process, so as to complete the duration of the return cycle of the sucker rod preset by the PLC. During the return process of the sucker rod, hydraulic oil is pumped into the rod cavity (pressurized), the first hydraulic value in the corresponding first oil inlet and outlet pipe is increased, and the corresponding first hydraulic value in the corresponding second oil inlet and outlet pipe of the rodless cavity is decreased (depressurized). During the descending process of the sucker rod, the friction resistance suffered by the sucker rod mainly comes from the friction between the side surface of the sucker rod and the oil mixture in the oil well, and the friction force gradually increases along with the descending of the sucker rod, and even the sucker rod stops sinking. In the process, when the direct current motor drives the oil cylinder to do work, the current of the direct current motor can change along with the decline of the sucker rod, and generally, the higher the water content is, the larger the friction force encountered by the sucker rod is, so that the oil cylinder needs to provide larger force to drive the balancing weight, and conversely, the smaller the friction force is. Because the time of each stroke frequency of the hydraulic pumping unit system is preset in advance, and the driving time of the oil cylinder during return stroke of the sucker rod is fixed, the electrode current value of the direct current motor driving the oil cylinder to work can generate different time curves. Similarly, the first hydraulic pressure value and the second hydraulic pressure value may also generate corresponding hydraulic pressure curves, wherein the waveforms of the first hydraulic pressure curve and the second hydraulic pressure curve are generally opposite, such as an ascending section of the first hydraulic pressure curve, a descending section of the second hydraulic pressure curve, and the like.
S3, searching a first standard current curve with highest similarity with the current curve in a preset standard current curve library, wherein a plurality of standard current curves are stored in the standard current curve library, and each standard current curve corresponds to the water content of an oil-water mixture and also corresponds to a standard pressure applying curve and a standard pressure releasing curve;
s4, searching a second standard pressure curve with highest similarity with the first hydraulic curve in a preset standard pressure curve library;
s5, searching a second standard pressure release curve with highest similarity with the second hydraulic curve in a preset standard pressure release curve library;
the standard current curve library is a pre-stored database, which can be built by staff using historical data, and the standard current curve of the direct current motor with different water contents of the oil-water mixture is stored in the standard current curve library in the return process of the sucker rod, so that a first standard current curve with highest similarity with the current curve can be obtained. Correspondingly, a standard pressure curve library and a standard pressure release curve library are also arranged, so that a second standard pressure curve and a second standard pressure release curve are obtained.
S6, determining a corresponding water content, a first standard pressure applying curve and a first standard pressure releasing curve based on the first standard current curve;
s7, judging whether the similarity of the first standard pressure applying curve and the second standard pressure applying curve is larger than a preset threshold value, and judging whether the similarity of the first standard pressure releasing curve and the second standard pressure releasing curve is larger than the preset threshold value;
s8, if so, determining a first water content in a currently extracted oil-water mixture in an oil well corresponding to the hydraulic pumping unit system based on the first standard current curve;
when the first standard current curve is determined, the moisture content currently corresponding to the first standard current curve, and the corresponding first standard pressure curve and first standard pressure release curve may be determined as described in steps S6-S8 above. The searching of the first standard pressure applying curve and the first standard pressure releasing curve is mainly used for verifying whether the first standard current curve is available, and the judging mode is to judge whether the similarity of the first standard pressure applying curve and the second standard pressure applying curve is larger than a preset threshold value or not and judge whether the similarity of the first standard pressure releasing curve and the second standard pressure releasing curve is larger than the preset threshold value or not. And if so, determining the first water content of the currently extracted oil-water mixture in the oil well corresponding to the hydraulic pumping unit system based on the first standard current curve. That is, only after the first standard pressure applying curve and the first standard pressure releasing curve corresponding to the first standard current curve are verified, it is determined that the first standard current curve can be used, and thus the corresponding first moisture content can be used.
And S9, generating a control instruction of a corresponding stroke and a corresponding stroke frequency based on the first water content, and sending the control instruction to the hydraulic pumping unit system so as to control the stroke and the stroke frequency of the hydraulic pumping unit system.
As described in step S9, after the remote control platform obtains the first water content, the remote control platform may obtain the corresponding stroke and the stroke frequency thereof, generate the control command, and then send the control command to the data transmission module of the hydraulic pumping unit system, where the data transmission module forwards the control command to the PLC module, and the PLC module controls the stroke and the stroke frequency of the hydraulic pumping unit system based on the control command.
According to the control method for the hydraulic pumping unit system based on the remote control, all data processing is performed on the remote control platform, a calculation processor with high calculation capability is not required to be arranged at one end of the hydraulic pumping unit, and the cost and maintenance cost of equipment are reduced. Furthermore, the water content of the oil mixture can be obtained only according to the current value of the direct current motor of the hydraulic pumping unit system, so that the stroke and the frequency of the hydraulic pumping unit system are determined again, and the method is simple and practical. Further, whether a first standard current curve corresponding to a current curve is available or not is verified through pressure curves of two oil ways of the hydraulic system, accuracy of stroke and stroke frequency setting is improved, oil pumping efficiency and service life of the hydraulic pumping unit system are improved, and the like.
In one embodiment, before the step of generating the current curve of the current value of the oil cylinder of the hydraulic oil pumping unit system in the preset return cycle of the sucker rod with time, the method includes:
acquiring a first weight value of an experimental sucker rod and a second weight value of a balancing weight;
based on the first gravity value and the second gravity value, testing to obtain a standard time curve of the current values of the motor in oil-water mixtures with different depths and different water contents during return stroke of the sucker rod;
a list of relationships is generated regarding the current profile and water cut of the sucker rod in the return stroke.
As described above, a large number of test experiments can be performed by the staff, and a large number of experiments are performed based on the weight of the experimental sucker rod, the weight of the balancing weight, different depths, oil-water mixtures with different water contents and other test conditions, and then a relation list of the current curve and the water contents is established according to the experimental data, so that the remote control platform can search the corresponding water contents according to the current curve. In one embodiment, the staff may perform simulation experiments in a laboratory, or may perform simulation experiments using simulation software, and then perform spot check verification to an actual site, so as to save the building time and the building cost of the relationship list. It should be noted that, the staff can also construct a relation list of different current curves and water contents based on the depth of the oil well in a certain range, and a plurality of standard current curve libraries and the like are correspondingly set in the same way, so as to obtain more accurate adjustment of stroke and stroke frequency. The purpose of the first weight value and the second weight value is to calculate a ratio between them, which is as similar or identical as possible to the actual scenario, to improve the accuracy of the final current curve and the list of relationships of the water content.
In one embodiment, the step of generating the control command of the corresponding stroke and the stroke frequency based on the first water content includes:
acquiring a first depth of an aquifer under the oil well and a second depth of the aquifer, which correspond to the hydraulic pumping unit system;
calculating the difference value between the first depth and the second depth to obtain the liquid level difference between the water level and the oil level under the oil well;
and generating control instructions of corresponding strokes and times of the strokes based on the liquid level difference and the first water content.
As described above, another factor affecting the stroke and the stroke frequency of the hydraulic pumping unit is the difference in the liquid level of the aquifer and the oil-bearing layer, which may be conducted if a large stroke and a fast stroke frequency are used when the difference in the liquid level is small, thereby making the oil well a waste well. Therefore, the method and the device can also refer to the liquid level difference between the underground water level and the oil level when the control command is generated, so that the safe use of the oil well is ensured. The first depth of the aquifer and the second depth of the oil-bearing layer are collected and recorded during early oil well construction.
Further, the step of generating the control command of the corresponding stroke and the stroke frequency based on the liquid level difference and the water content includes:
Acquiring a preset mapping table of water content, stroke and stroke frequency, and acquiring a first stroke value and a first stroke frequency value corresponding to the first water content; judging whether the liquid level difference is smaller than a preset liquid level threshold value or not;
if yes, adjusting the first stroke value and the first stroke frequency value based on the liquid level difference to obtain a second stroke value and a second stroke frequency value; and generating the control instruction based on the second stroke value and a second stroke count value;
if not, the control instruction is directly generated based on the first stroke value and the first stroke frequency value.
As described above, when the difference in the liquid level difference is large (greater than the liquid level threshold value), it is indicated that the aquifer does not have a significant influence on the oil-bearing layer, and at this time, the control command may be generated directly using the first stroke value and the first stroke value corresponding to the first water content. If the difference value of the liquid level difference is relatively small (smaller than the liquid level threshold value), the liquid level difference needs to be considered, and then the first stroke value and the first stroke frequency value are adjusted according to a set adjustment scheme, so that a second stroke value and a second stroke frequency value are obtained; and generating the control instruction based on the second stroke value and the second stroke frequency value, thereby obtaining the stroke and the stroke frequency suitable for the current oil well.
Further, the step of adjusting the first stroke value and the first stroke frequency value based on the liquid level difference to obtain a second stroke value and a second stroke frequency value includes:
calculating the ratio of the liquid level difference to the liquid level threshold;
searching a corresponding stroke adjusting value from a preset ratio-stroke mapping table based on the ratio, and searching a corresponding stroke adjusting value from a preset ratio-stroke mapping table;
and subtracting the stroke adjustment value from the first stroke value to obtain the second stroke value, and subtracting the stroke adjustment value from the first stroke value to obtain the second stroke value.
As described above, the ratio-stroke map and the ratio-stroke count map are typically empirical tables, and are obtained by petroleum acquisition specialists based on working experience, experimental data, and history data. The second stroke value and the second stroke frequency value are obtained through corresponding adjusting values, so that petroleum can be collected efficiently, safe use of an oil well can be ensured, and the service life of the oil well is longer.
In one embodiment, each hydraulic pumping unit system is correspondingly provided with a group of energy power supply modules consisting of an energy storage battery and a power generation device based on wind energy and/or solar energy power generation; the oil field where the hydraulic pumping unit system is arranged is provided with a plurality of hydraulic pumping unit systems, and energy storage batteries of the hydraulic pumping unit systems are mutually and electrically connected and used for transferring electric energy; the control method further includes:
Acquiring the stroke and the frequency of the stroke of each hydraulic pumping unit system, the electric storage capacity of an energy storage battery of an energy supply module corresponding to each hydraulic pumping unit system and the charging efficiency of a power generation device to the energy storage battery, and calculating the energy supply relation between each energy supply module and the corresponding hydraulic pumping unit system;
judging whether a first energy power supply module which cannot meet the continuous operation of the hydraulic pumping unit system exists or not, and whether a second energy power supply module which meets the continuous operation of the hydraulic pumping unit system exists or not;
if the first energy power supply module exists, a third energy power supply module meeting the preset requirement is screened out from the second energy power supply module, and the third energy power supply module is controlled to charge the first energy power supply module according to a preset charging strategy.
As described above, the energy of the hydraulic pumping unit system is completely from new energy sources such as wind energy, solar energy and the like, and the hydraulic pumping unit system can be separated from a power grid, so that energy conservation and emission reduction are realized, and the petroleum acquisition cost is reduced. Because different strokes and stroke times lead to different electricity consumption conditions of different hydraulic pumping units, and because the conversion rates of solar energy and wind energy at the positions of the oil wells are different, the electricity storage conditions of different energy supply modules are different, the situation that the energy supply relation between the energy supply modules and the hydraulic pumping unit system is insufficient and the situation that the energy supply relation between the energy supply modules and the hydraulic pumping unit system is excessive exists. In order to enable all hydraulic pumping units to normally operate, all energy storage batteries are electrically connected with each other, and then the third energy power supply module with surplus energy storage charges the first energy power supply module (power supply module with insufficient power supply) according to a preset charging strategy. The charging strategy includes: and calculating the power consumption condition according to the stroke and the stroke frequency of the corresponding hydraulic pumping unit, estimating the relation between the power consumption and the power generation of the third energy power supply module within a certain time length, and transmitting redundant electric energy to other first energy power supply modules needing to be charged under the condition that the power consumption of the third energy power supply module is always kept to be satisfied. For example, in the night state, solar energy cannot be charged, and under the condition that wind energy is charged normally, calculating a time interval from the current time to the time when solar energy can be charged normally, then calculating the normal electricity consumption of the solar energy in the time interval, multiplying the current electricity storage quantity by 1.2 times to obtain electricity consumption for ensuring the work of the solar energy charging device, and then using the redundant electricity consumption as the electricity consumption capable of being transferred to other energy storage modules to charge other electricity utilization modules. Of course, the weather conditions of the next day or several continuous days and the like are considered, so that other hydraulic pumping units can work normally under the condition of ensuring the normal work of the hydraulic pumping units.
In one embodiment, the oil field is further provided with a public energy storage battery, and each energy storage battery is electrically connected with the public energy storage battery respectively so as to realize the mutual electrical connection of the energy storage batteries of each hydraulic pumping unit system; the step of controlling the third energy power supply module to charge the first energy power supply module according to a preset charging strategy comprises the following steps:
controlling the third energy power supply module to charge the public energy storage battery;
and the public energy storage battery charges the first energy power supply module.
As described above, a public energy storage battery is set up, then the redundant electric energy of the third energy supply module with the redundant electric energy is stored in the public energy storage battery, and then the public energy storage battery uniformly charges the first energy supply module, so that the circuit arrangement and control are simpler.
Referring to fig. 2, the embodiment of the invention further provides a control device for a hydraulic pumping unit system based on remote control, which comprises:
the remote control platform is used for acquiring a motor current value of a direct current motor of an oil pump of the hydraulic oil pumping unit system in real time when a sucker rod of the hydraulic oil pumping unit system starts a return stroke action, and acquiring a first hydraulic value in a first oil inlet and outlet pipe of an oil cylinder in the hydraulic oil pumping unit system and a second hydraulic value in a second oil inlet and outlet pipe of the oil cylinder in the hydraulic oil pumping unit system; the direct current motor is powered by an energy storage battery, and the electric energy stored by the energy storage battery is generated by a power generation device based on wind energy and/or solar energy power generation;
The generating unit is used for generating a current curve of a motor current value and time of an oil cylinder of the hydraulic pumping unit system in a preset return cycle of the pumping rod; and generating a first hydraulic pressure curve of the first hydraulic pressure value and time and a second hydraulic pressure curve of the second hydraulic pressure value and time;
the first searching unit is used for searching a first standard current curve with highest similarity with the current curve in a preset standard current curve library, wherein a plurality of standard current curves are stored in the standard current curve library, and each standard current curve corresponds to the water content of an oil-water mixture and also corresponds to a standard pressing curve and a standard pressure release curve;
the second searching unit is used for searching a second standard pressure curve with the highest similarity with the first hydraulic curve in a preset standard pressure curve library;
the third searching unit is used for searching a second standard pressure relief curve with highest similarity with the second hydraulic curve in a preset standard pressure relief curve library;
the first determining unit is used for determining a corresponding water content, a first standard pressure applying curve and a first standard pressure releasing curve based on the first standard current curve;
The judging unit is used for judging whether the similarity of the first standard pressure applying curve and the second standard pressure applying curve is larger than a preset threshold value or not and judging whether the similarity of the first standard pressure releasing curve and the second standard pressure releasing curve is larger than the preset threshold value or not;
the second determining unit is used for determining a first water content of the oil-water mixture currently extracted from the oil well corresponding to the hydraulic pumping unit system based on the first standard current curve if the oil-water mixture is the same;
and the production transmission control unit is used for generating control instructions of corresponding strokes and frequency of strokes based on the first water content and sending the control instructions to the hydraulic pumping unit system so as to control the strokes and the frequency of strokes of the hydraulic pumping unit system.
Referring to fig. 3, an embodiment of the present invention further provides a computer device (remote control platform), and an internal structure of the computer device may be as shown in fig. 3. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The nonvolatile storage medium stores an operating device, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is used for storing a standard current curve library and the like. The network interface of the computer device is used for communicating with an external terminal through a network connection. Further, the above-mentioned computer apparatus may be further provided with an input device, a display screen, and the like. The computer program is executed by a processor to realize a control method for a hydraulic pumping unit system based on remote, and the control method comprises the following steps: when a sucker rod of the hydraulic pumping unit system starts a return stroke action, the remote control platform acquires a motor current value of a direct current motor of an oil pump of the hydraulic pumping unit system in real time, and acquires a first hydraulic value in a first oil inlet and outlet pipe of an oil cylinder in the hydraulic pumping unit system and a second hydraulic value in a second oil inlet and outlet pipe of the oil cylinder in the hydraulic pumping unit system; the direct current motor is powered by an energy storage battery, and the electric energy stored by the energy storage battery is generated by a power generation device based on wind energy and/or solar energy power generation; generating a current curve of a motor current value and time of an oil cylinder of the hydraulic pumping unit system in a preset return cycle of the pumping rod; and generating a first hydraulic pressure curve of the first hydraulic pressure value and time and a second hydraulic pressure curve of the second hydraulic pressure value and time; searching a first standard current curve with highest similarity with the current curve in a preset standard current curve library, wherein a plurality of standard current curves are stored in the standard current curve library, each standard current curve corresponds to the water content of an oil-water mixture, and a standard pressing curve and a standard pressure release curve are also corresponding to the standard current curve; searching a second standard pressure curve with highest similarity with the first hydraulic curve in a preset standard pressure curve library; searching a second standard pressure release curve with highest similarity with the second hydraulic curve in a preset standard pressure release curve library; based on the first standard current curve, determining a corresponding water content, a first standard pressure applying curve and a first standard pressure releasing curve; judging whether the similarity of the first standard pressure applying curve and the second standard pressure applying curve is larger than a preset threshold value or not, and judging whether the similarity of the first standard pressure releasing curve and the second standard pressure releasing curve is larger than the preset threshold value or not; if so, determining a first water content of a currently extracted oil-water mixture in an oil well corresponding to the hydraulic pumping unit system based on the first standard current curve; and generating control instructions of corresponding strokes and frequency of strokes based on the first water content, and sending the control instructions to the hydraulic pumping unit system so as to control the strokes and the frequency of strokes of the hydraulic pumping unit system.
An embodiment of the present application further provides a computer readable storage medium having a computer program stored thereon, which when executed by a processor, implements a method for remotely controlling a hydraulic pumping unit system, including: when a sucker rod of the hydraulic pumping unit system starts a return stroke action, the remote control platform acquires a motor current value of a direct current motor of an oil pump of the hydraulic pumping unit system in real time, and acquires a first hydraulic value in a first oil inlet and outlet pipe of an oil cylinder in the hydraulic pumping unit system and a second hydraulic value in a second oil inlet and outlet pipe of the oil cylinder in the hydraulic pumping unit system; the direct current motor is powered by an energy storage battery, and the electric energy stored by the energy storage battery is generated by a power generation device based on wind energy and/or solar energy power generation; generating a current curve of a motor current value and time of an oil cylinder of the hydraulic pumping unit system in a preset return cycle of the pumping rod; and generating a first hydraulic pressure curve of the first hydraulic pressure value and time and a second hydraulic pressure curve of the second hydraulic pressure value and time; searching a first standard current curve with highest similarity with the current curve in a preset standard current curve library, wherein a plurality of standard current curves are stored in the standard current curve library, each standard current curve corresponds to the water content of an oil-water mixture, and a standard pressing curve and a standard pressure release curve are also corresponding to the standard current curve; searching a second standard pressure curve with highest similarity with the first hydraulic curve in a preset standard pressure curve library; searching a second standard pressure release curve with highest similarity with the second hydraulic curve in a preset standard pressure release curve library; based on the first standard current curve, determining a corresponding water content, a first standard pressure applying curve and a first standard pressure releasing curve; judging whether the similarity of the first standard pressure applying curve and the second standard pressure applying curve is larger than a preset threshold value or not, and judging whether the similarity of the first standard pressure releasing curve and the second standard pressure releasing curve is larger than the preset threshold value or not; if so, determining a first water content of a currently extracted oil-water mixture in an oil well corresponding to the hydraulic pumping unit system based on the first standard current curve; and generating control instructions of corresponding strokes and frequency of strokes based on the first water content, and sending the control instructions to the hydraulic pumping unit system so as to control the strokes and the frequency of strokes of the hydraulic pumping unit system.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium provided herein and used in embodiments may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual speed data rate SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, apparatus, article, or method. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, apparatus, article or method that comprises the element.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.
Claims (10)
1. A control method for a hydraulic pumping unit system based on remote control, which is characterized by comprising the following steps:
when a sucker rod of the hydraulic pumping unit system starts a return stroke action, the remote control platform acquires a motor current value of a direct current motor of an oil pump of the hydraulic pumping unit system in real time, and acquires a first hydraulic value in a first oil inlet and outlet pipe of an oil cylinder in the hydraulic pumping unit system and a second hydraulic value in a second oil inlet and outlet pipe of the oil cylinder in the hydraulic pumping unit system; the direct current motor is powered by an energy storage battery, and the electric energy stored by the energy storage battery is generated by a power generation device based on wind energy and/or solar energy power generation;
Generating a current curve of a motor current value and time of an oil cylinder of the hydraulic pumping unit system in a preset return cycle of the pumping rod; and generating a first hydraulic pressure curve of the first hydraulic pressure value and time and a second hydraulic pressure curve of the second hydraulic pressure value and time;
searching a first standard current curve with highest similarity with the current curve in a preset standard current curve library, wherein a plurality of standard current curves are stored in the standard current curve library, and each standard current curve corresponds to the water content of an oil-water mixture and also corresponds to a standard pressing curve and a standard pressure release curve;
searching a second standard pressure curve with highest similarity with the first hydraulic curve in a preset standard pressure curve library;
searching a second standard pressure release curve with highest similarity with the second hydraulic curve in a preset standard pressure release curve library;
based on the first standard current curve, determining a corresponding water content, a first standard pressure applying curve and a first standard pressure releasing curve;
judging whether the similarity of the first standard pressure applying curve and the second standard pressure applying curve is larger than a preset threshold value or not, and judging whether the similarity of the first standard pressure releasing curve and the second standard pressure releasing curve is larger than the preset threshold value or not;
If so, determining a first water content of a currently extracted oil-water mixture in an oil well corresponding to the hydraulic pumping unit system based on the first standard current curve;
and generating control instructions of corresponding strokes and frequency of strokes based on the first water content, and sending the control instructions to the hydraulic pumping unit system so as to control the strokes and the frequency of strokes of the hydraulic pumping unit system.
2. The method of claim 1, wherein the step of generating a current profile of the current values of the electric motor and time in the predetermined return cycle of the sucker rod for the cylinder of the hydraulic pumping unit system, comprises:
acquiring a first weight value of an experimental sucker rod and a second weight value of a balancing weight;
based on the first gravity value and the second gravity value, testing to obtain a standard time curve of the current values of the motor in oil-water mixtures with different depths and different water contents during return stroke of the sucker rod;
a list of relationships is generated regarding the current profile and water cut of the sucker rod in the return stroke.
3. The method of remotely-based control of a hydraulic pumping unit system of claim 1, wherein the step of generating control commands for corresponding strokes and times of strokes based on the first moisture content comprises:
Acquiring a first depth of an aquifer under the oil well and a second depth of the aquifer, which correspond to the hydraulic pumping unit system;
calculating the difference value between the first depth and the second depth to obtain the liquid level difference between the water level and the oil level under the oil well;
and generating control instructions of corresponding strokes and times of the strokes based on the liquid level difference and the first water content.
4. A method of remotely controlling a hydraulic pumping unit system according to claim 3, wherein the step of generating control commands for corresponding strokes and strokes based on the level difference and the water content comprises:
acquiring a preset mapping table of water content, stroke and stroke frequency, and acquiring a first stroke value and a first stroke frequency value corresponding to the first water content;
judging whether the liquid level difference is smaller than a preset liquid level threshold value or not;
if yes, the first stroke value and the first stroke frequency value are adjusted based on the liquid level difference, a second stroke value and a second stroke frequency value are obtained, and the control instruction is generated based on the second stroke value and the second stroke frequency value;
if not, the control instruction is directly generated based on the first stroke value and the first stroke frequency value.
5. The method of claim 4, wherein the step of adjusting the first stroke value and the first stroke frequency value based on the liquid level difference to obtain a second stroke value and a second stroke frequency value comprises:
Calculating the ratio of the liquid level difference to the liquid level threshold;
searching a corresponding stroke adjusting value from a preset ratio-stroke mapping table based on the ratio, and searching a corresponding stroke adjusting value from a preset ratio-stroke mapping table;
and subtracting the stroke adjustment value from the first stroke value to obtain the second stroke value, and subtracting the stroke adjustment value from the first stroke value to obtain the second stroke value.
6. The method for remotely controlling hydraulic pumping unit systems according to claim 1, wherein each hydraulic pumping unit system is correspondingly provided with a group of energy supply modules consisting of energy storage batteries and power generation devices based on wind energy and/or solar power generation; the oil field where the hydraulic pumping unit system is arranged is provided with a plurality of hydraulic pumping unit systems, and energy storage batteries of the hydraulic pumping unit systems are mutually and electrically connected and used for transferring electric energy; the control method further includes:
acquiring the stroke and the frequency of the stroke of each hydraulic pumping unit system, the electric storage capacity of an energy storage battery of an energy supply module corresponding to each hydraulic pumping unit system and the charging efficiency of a power generation device to the energy storage battery, and calculating the energy supply relation between each energy supply module and the corresponding hydraulic pumping unit system;
Judging whether a first energy power supply module which cannot meet the continuous operation of the hydraulic pumping unit system exists or not, and whether a second energy power supply module which meets the continuous operation of the hydraulic pumping unit system exists or not;
if the first energy power supply module exists, a third energy power supply module meeting the preset requirement is screened out from the second energy power supply module, and the third energy power supply module is controlled to charge the first energy power supply module according to a preset charging strategy.
7. The method of claim 6, wherein the oilfield is further provided with a common energy storage battery, and each energy storage battery is electrically connected with the common energy storage battery respectively, so as to realize the mutual electrical connection of the energy storage batteries of each hydraulic pumping unit system; the step of controlling the third energy power supply module to charge the first energy power supply module according to a preset charging strategy comprises the following steps:
controlling the third energy power supply module to charge the public energy storage battery;
and the public energy storage battery charges the first energy power supply module.
8. A control device for a hydraulic pumping unit system based on remote control, comprising:
The remote control platform is used for acquiring a motor current value of a direct current motor of an oil pump of the hydraulic oil pumping unit system in real time when a sucker rod of the hydraulic oil pumping unit system starts a return stroke action, and acquiring a first hydraulic value in a first oil inlet and outlet pipe of an oil cylinder in the hydraulic oil pumping unit system and a second hydraulic value in a second oil inlet and outlet pipe of the oil cylinder in the hydraulic oil pumping unit system; the direct current motor is powered by an energy storage battery, and the electric energy stored by the energy storage battery is generated by a power generation device based on wind energy and/or solar energy power generation;
the generating unit is used for generating a current curve of a motor current value and time of an oil cylinder of the hydraulic pumping unit system in a preset return cycle of the pumping rod; and generating a first hydraulic pressure curve of the first hydraulic pressure value and time and a second hydraulic pressure curve of the second hydraulic pressure value and time;
the first searching unit is used for searching a first standard current curve with highest similarity with the current curve in a preset standard current curve library, wherein a plurality of standard current curves are stored in the standard current curve library, and each standard current curve corresponds to the water content of an oil-water mixture and also corresponds to a standard pressing curve and a standard pressure release curve;
The second searching unit is used for searching a second standard pressure curve with the highest similarity with the first hydraulic curve in a preset standard pressure curve library;
the third searching unit is used for searching a second standard pressure relief curve with highest similarity with the second hydraulic curve in a preset standard pressure relief curve library;
the first determining unit is used for determining a corresponding water content, a first standard pressure applying curve and a first standard pressure releasing curve based on the first standard current curve;
the judging unit is used for judging whether the similarity of the first standard pressure applying curve and the second standard pressure applying curve is larger than a preset threshold value or not and judging whether the similarity of the first standard pressure releasing curve and the second standard pressure releasing curve is larger than the preset threshold value or not;
the second determining unit is used for determining a first water content of the oil-water mixture currently extracted from the oil well corresponding to the hydraulic pumping unit system based on the first standard current curve if the oil-water mixture is the same;
and the production transmission control unit is used for generating control instructions of corresponding strokes and frequency of strokes based on the first water content and sending the control instructions to the hydraulic pumping unit system so as to control the strokes and the frequency of strokes of the hydraulic pumping unit system.
9. A computer device comprising a memory and a processor, the memory having stored therein a computer program, characterized in that the processor, when executing the computer program, carries out the steps of the remote-based control method of a hydraulic pumping unit system according to any one of claims 1 to 7.
10. A computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the remote-based control method of a hydraulic pumping unit system according to any one of claims 1 to 7.
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| CN112025965A (en) * | 2020-08-20 | 2020-12-04 | 江苏科瑞德智控自动化科技有限公司 | Embedded control system and method for vertical radial extrusion pipe manufacturing equipment |
| CN115622074A (en) * | 2021-07-16 | 2023-01-17 | 中国石油化工股份有限公司 | Method, system, device and storage medium for regulating power grid of oil pumping unit |
| CN115596412A (en) * | 2022-09-26 | 2023-01-13 | 哈尔滨博列石油科技中心（Cn） | Automatic pumping unit stroke frequency adjusting method based on continuous liquid production of pumping unit wellhead |
| CN218844283U (en) * | 2022-12-06 | 2023-04-11 | 西南石油大学 | Improved hydraulic oil pumping machine |
| CN115774420A (en) * | 2022-12-14 | 2023-03-10 | 安徽物迅科技有限公司 | Near and remote control system and method for oil well lifting |
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