CN111236902A - Intelligent data regulation and control system for oil field water injection well - Google Patents
Intelligent data regulation and control system for oil field water injection well Download PDFInfo
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- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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Abstract
The invention discloses an intelligent data regulation and control system for an oil field water injection well. The system comprises: the system comprises a regulation and control device arranged underground, a communication module arranged on the underground and an armor cable for connecting the regulation and control device and the communication module; the regulation and control device comprises an acquisition, storage and control module, a motor driving module, a power supply module and various sensors; the multiple sensors comprise a flowmeter, a thermometer, a water nozzle opening sensor and a pressure sensor; the power supply module is used for supplying power to the system; the communication module is used for acquiring and storing data and transmitting instructions between the control module and the upper computer; the acquisition, storage and control module is used for acquiring sensor data, uploading the data to the upper computer and receiving an instruction sent by the upper computer, and controlling the motor driving module to drive the motor to adjust the opening of the water nozzle according to the instruction. The intelligent data regulation and control system can realize intelligent allocation of water injection quantity, and can be matched with an upper computer to form and improve the automation and intelligence level of water injection well management.
Description
Technical Field
The invention relates to the technical field of oil field water injection wells, in particular to an intelligent data regulation and control system for an oil field water injection well.
Background
Water injection wells play a crucial role in the oil production process. Along with the increase of the exploitation degree, the energy of an oil layer is gradually consumed, the pressure of the oil layer is reduced, underground crude oil is greatly degassed, the viscosity is increased, and the oil recovery is reduced. The reasonable water injection mode injects water into the oil reservoir, can solve the problem of stratum vacancy, better keeps the pressure of an oil layer, improves the driving force of the oil reservoir, and improves the exploitation quality, the recovery ratio and the like of oil.
As an important component of oil field production, a water injection well system is important in increasing oil field production by 'enough water, well water and fine water injection'. Along with the continuous deepening of oil field development, the proportion of a water injection well is larger and larger, but most of the water injection wells are installed in open areas, under the traditional production management mode, the working states of various facilities of the water injection well are monitored, main parameters are collected, and water injection amount allocation is performed by manually and regularly patrolling, measuring, counting and adjusting, instrument equipment is adopted for collecting various parameters of a production field, the water injection well and a water injection room belong to a high-pressure environment, and a common gate valve is short in service life, easy to corrode and easy to leak, so that the labor intensity of workers is increased, the real-time performance and accuracy of equipment monitoring and data collection are seriously influenced, the waste of resources and funds is easily caused, and meanwhile, certain environmental pollution problems are caused.
Along with the acceleration of the digital oil field construction process, the informatization of the water injection well monitoring is imperative, and the construction of an intelligent regulation and control system has important significance for solving the problems of the oil field water injection process.
Disclosure of Invention
The invention aims to provide an intelligent data regulation and control system for an oil field water injection well, which is used for realizing intelligent allocation of water injection quantity and improving the automation and intelligence level of water injection well management.
In order to achieve the purpose, the invention adopts the following technical scheme.
An intelligent data conditioning system for an oil field water injection well, the system comprising: the system comprises a regulation and control device arranged underground, a communication module arranged on the underground and an armor cable for connecting the regulation and control device and the communication module; the regulation and control device comprises an acquisition, storage and control module, a motor driving module, a power supply module and various sensors; the sensors comprise a flowmeter, a thermometer, a water nozzle opening sensor and a pressure sensor;
the acquisition, storage and control module is respectively in communication connection with the various sensors, the motor driving module and the communication module, and the communication module is in communication connection with an upper computer; the power supply module supplies power to the acquisition, storage and control module, the communication module, the motor driving module and the flowmeter;
the communication module is used for transmitting the data sent by the acquisition, storage and control module to an upper computer and transmitting the instruction sent by the upper computer to the acquisition, storage and control module;
the acquisition, storage and control module is used for acquiring sensor data according to a set period, uploading the data to the upper computer and receiving an instruction sent by the upper computer through the communication module, and controlling the motor driving module to drive the motor to adjust the opening degree of the water nozzle according to the instruction.
In one possible implementation mode, a water injection pipe column and a water distribution device are arranged in the oil field water injection well, the water distribution device comprises a pipe column connecting base connected with the water injection pipe column and a water distributor installed on the pipe column connecting base, and the water distributor comprises a water injection nozzle and a motor used for controlling the opening degree of the water injection nozzle; the regulation and control device is installed in the base is connected to the tubular column, motor drive module is used for drive and control the motor, the flowmeter is used for detecting the flow through the water injection nozzle, the thermometer is used for detecting the temperature in the well, two pressure sensor is used for detecting the oil pressure and the casing pressure of oil field water injection well respectively, water injection nozzle opening sensor adopts limit switch in order to detect the water injection nozzle's water injection nozzle opening.
In one possible implementation mode, the acquisition, storage and control module comprises a single chip microcomputer, the single chip microcomputer acquires the data of the sleeve pressure, the oil pressure, the temperature, the flow and the water nozzle opening degree from corresponding sensors through an operation program, and performs A/D conversion and real-time uploading on the acquired data.
In one possible implementation manner, the acquisition, storage and control module is further configured to automatically store sensor data acquired at the power-off time when the power is off, and automatically upload the stored data to the upper computer after the power is restored.
In a possible implementation manner, the collection, storage and control module is further configured to automatically enter a sleep state when not operating.
In a possible implementation manner, the power module is configured to convert a 110V dc power into a 24V dc power and further convert the 24V dc power into a 3.3V dc power, output the 24V dc power to the motor driving module and the flow meter, and output the 3.3V dc power to the acquisition, storage, and control module and the communication module.
In one possible implementation, the power module includes: the chip comprises a V110C24T100BG chip for converting an input 110V direct-current power supply into a 24V direct-current power supply, and a WRF _ S-3WR2 chip for converting the 24V direct-current power supply into a 3.3V direct-current power supply.
In a possible implementation manner, the acquisition, storage and control module further comprises a current detection circuit, the current detection circuit is used for detecting the current of the 24V direct-current power supply in real time, and when the current exceeds a set threshold value, the motor driving module is instructed to stop the motor from rotating to protect the circuit, and information that the current is too large is uploaded to an upper computer.
In one possible implementation manner, the motor driving module is used for controlling the motor to perform forward rotation, reverse rotation, stop and inching operation according to the instruction so as to adjust the opening of the water injection nozzle and realize flow regulation.
In a possible implementation mode, the single chip microcomputer adopts an STM32F1 series single chip microcomputer, and the motor driving module adopts an L6205 chip.
According to the technical scheme, the embodiment of the invention has the following advantages:
the intelligent data regulation and control system of the invention collects data of each monitoring point through the sensor and provides the data to an upper computer such as a PC end for monitoring and management, and can realize data transmission of pressure, flow, temperature, water nozzle opening and the like and effective control of the water nozzle opening, thereby realizing the intelligent allocation function of water injection amount, meeting the requirement of combining oil exploitation and management by matching with the upper computer, forming the modern management integrated application of the collection, transmission, analysis, management and application of production information, and improving the automation and intelligence level of water injection well management.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below.
FIG. 1 is a schematic structural diagram of an intelligent data conditioning system for an oilfield water injection well according to an embodiment of the present invention;
FIG. 2 is a hardware block diagram of an intelligent data conditioning system in accordance with an embodiment of the present invention;
FIG. 3 is a block diagram of the electronic portion of the intelligent data conditioning system in one embodiment of the present invention;
FIG. 4 is a schematic diagram of a power module in one embodiment of the invention;
FIG. 5 is a schematic view of a motor drive module in one embodiment of the invention;
FIG. 6 is a schematic diagram of a collection storage and control module in accordance with an embodiment of the present invention;
fig. 7 is a flow chart of a main communication program in one embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," and the like in the description and in the claims, and in the above-described drawings, are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The following will explain details by way of specific examples.
Oilfield flooding is a complex system engineering. The oilfield water injection system comprises a water source and water supply system, a ground water injection pressurization system, a water injection well underground system, a ground management system and the like. The water injection well downhole system can comprise a water injection pipe column positioned in the water injection well of the oil field, a water distribution device connected to the water injection pipe column and the like. Wherein, the water injection pipe column can adopt a stainless steel pipe column. The water distribution device may have one or more, respectively corresponding to one or more oil layers (water injection layers). The water distribution device can comprise a tubular column connecting base connected with the water injection tubular column and a water distributor installed on the tubular column connecting base, and the water distributor can comprise a water injection nozzle and a motor used for controlling the opening degree of the water injection nozzle. The ground management system can comprise a host computer such as a PC terminal and the like.
The embodiment of the invention aims to provide an intelligent data regulation and control system for an oil field water injection well, which is used for carrying out data detection on an underground system of the water injection well and regulating and controlling the underground system by matching with an upper computer so as to realize data acquisition of each monitoring point of the oil field water injection well, transmission of the acquired data, effective control of the opening degree of a water nozzle of a water injection nozzle, intelligent allocation of water injection quantity and the like.
Referring to fig. 1, in an embodiment of the present invention, an intelligent data conditioning system for an oilfield water injection well is provided, the system including: the system comprises a regulation and control device 10 arranged underground, a communication module 11 arranged on the well, and an armor cable 12 connecting the regulation and control device 10 and the communication module 11; the regulation and control device 10 comprises a collection storage and control module 13, a motor driving module 14, a power supply module 15 and a plurality of sensors 16; the various sensors 16 may include a flow meter, a thermometer, a water nozzle opening sensor, and a pressure sensor.
The acquisition, storage and control module 13 is respectively in communication connection with the various sensors 16, the motor driving module 14 and the communication module 12, and the communication module 12 is in communication connection with an upper computer of the oilfield water injection well system; the power module 15 supplies power to the acquisition, storage and control module 13, the communication module 12, the motor drive module 14 and the flow meter.
The power module 15 is configured to supply power to the acquisition, storage and control module 13 and the communication module 12, and supply power to the motor drive module 14 and the flow meter.
And the communication module 12 is used for transmitting the data sent by the acquisition, storage and control module 13 to an upper computer and transmitting the instruction sent by the upper computer to the acquisition, storage and control module 13.
The acquisition, storage and control module 13 is used for acquiring sensor data according to a set period, uploading the data to an upper computer and receiving an instruction sent by the upper computer through the communication module 12, and controlling the motor driving module 14 to drive the motor to adjust the opening degree of the water nozzle according to the instruction.
The regulating device can be arranged in a pipe column connecting base of the water distribution device. The motor driving module is used for driving and controlling the motor. The flowmeter is used for detecting the flow passing through the water injection nozzle. The thermometer is used for detecting the temperature in the well. And the two pressure sensors are respectively used for detecting the oil pressure and the casing pressure of the oil field water injection well. The water nozzle opening sensor adopts a limit switch to detect the water nozzle opening of the water injection nozzle.
The acquisition, storage and control module comprises a single chip microcomputer, the single chip microcomputer acquires casing pressure, oil pressure, temperature, flow and water nozzle opening data from corresponding sensors through an operation program, performs A/D conversion on the acquired data, and uploads the acquired data to an upper computer through a communication module in real time. The singlechip and the communication module can communicate in a serial port mode.
The acquisition, storage and control module is also used for automatically storing the sensor data acquired at the power-off moment when the power is off, and automatically uploading the stored data to the upper computer after the power is restored; and automatically entering a sleep state when not in operation. Optionally, an EEPROM (Electrically Erasable and Programmable read only memory) is arranged in the single chip microcomputer, and the data can be stored into the EEPROM at regular time, so that the data during power failure can be automatically stored.
The main hardware components of the system of the present invention are further described below.
Referring to fig. 2, in some embodiments, the hardware structure of the intelligent data conditioning system of the present invention may include: a communication module 11, an armor 12, two pieces of wiring board, and various sensors 16. The two circuit boards may include a first circuit board 21 for carrying the power module 15 and a second circuit board 22 for carrying the acquisition storage and control module 13 and the motor drive module 14. Two circuit boards and sensors 16 are mounted on a pipe column connecting base 20, are arranged together in a well, are connected to a communication module 11 on the well through an armor 12, and finally transmit data to an upper computer such as a PC end in a wired or wireless mode for monitoring and control. The acquisition, storage and control module 13 comprises a single chip microcomputer arranged on the second circuit board, the single chip microcomputer can run a software program, the software program can be programmed by adopting C language, and the functions of A/D conversion, data acquisition, serial communication (serial communication with the communication module) and the like in the single chip microcomputer are completed. Herein, the second circuit board may also be referred to as a single chip control circuit board, and the first circuit board may also be referred to as a power conversion circuit board.
In the embodiment of the invention, the acquisition, storage and control module can realize the following functions: acquiring sensor data once every 1S according to a set period, and uploading the acquired data to an upper computer in real time; the acquisition, storage and control module can automatically store data acquired at the power-off time into the single chip microcomputer during non-operation power-off, and automatically upload the data to an upper computer after power-on is restored; when the oil layer is more, the collection, storage and control module (or the second circuit board) which does not work or does not collect data can automatically enter a dormant state, and the power consumption is reduced.
In the embodiment of the invention, the power supply module can select a storage battery (box) or a power supply conversion circuit board. The external environment of the water injection well in the oil field is severe, and effective power supply measures must be improved. Considering that the storage point pool (box) needs to be replaced and has poor cruising ability and higher space occupation, the power supply module of the invention preferably adopts a power supply conversion circuit board to convert the externally input 110V direct current voltage into 24V and further into 3.3V. And outputting a 24V direct-current power supply to the motor driving module and the flowmeter, and outputting a 3.3V direct-current power supply to the acquisition, storage and control module and the communication module.
In the embodiment of the invention, the pipe column connecting base is connected to the lower end of the stainless steel pipe column serving as the water injection pipe column, is a mechanical structure for mounting two circuit boards and a sensor into a whole, and is connected with the water injection pipe column so as to be convenient to disassemble and reuse. The side of the tubular column connection base can be provided with a water injection port for injecting water into an oil layer, the opening-adjustable water injection nozzle inside is matched with the water injection port, and the water injection amount can be controlled by controlling the opening of the water injection nozzle. The pipe column connecting base can also be provided with a plurality of mounting holes, wherein the two holes are used for mounting two pressure sensors and respectively measuring oil pressure and casing pressure; one of the holes is provided with a limit switch for measuring the opening degree of the water nozzle. Optionally, according to different oil layer depths of the water injection well, a pipe column connecting base can be added at the lower end of the water injection pipe column, and a water distributor is arranged in each pipe column connecting base to form a water distribution device so as to complete zonal water injection. Preferably, the control devices in the plurality of string connection bases are all connected by the same armor cable. And the regulating devices of different oil layer depths are mutually independent.
In the embodiment of the invention, the armored cable is a mechanical structure used for power supply, communication and connection of different oil layers of the whole system, and is called as armored cable for short.
In the embodiment of the present invention, the communication module functions as: the data collected by the collecting, storing and controlling module can be transmitted to the upper computer through the communication module, and the upper computer can also send instructions to the single chip microcomputer of the collecting, storing and controlling module through the communication module, so that the motor driving module is controlled to drive the motor, and the flow is controlled step by step.
Optionally, the pressure application range of the intelligent data regulation and control system is 0-35 MPa; the temperature is applicable to the range of minus 55 ℃ to plus 125 ℃.
The electronic structural part of the system of the invention is further explained below.
FIG. 3 shows the overall structure and schematic block diagram of the electronic part of the intelligent data conditioning system of the present invention, including: the device comprises a power module, a collection storage and control module for collecting sensor data, a motor driving module for controlling the forward rotation or reverse rotation of a motor and a communication module for communicating with an upper computer. The acquisition, storage and control module comprises a single chip microcomputer, the single chip microcomputer is connected with the sensor on one hand and used for acquiring data, and is connected with the motor driving circuit on the other hand and used for controlling the motor. The single chip microcomputer controls A/D conversion, data acquisition, communication with an upper computer and the like through running programs.
Fig. 4 is a schematic diagram of a power module of the intelligent data control system according to the present invention, in which a 110V dc power is obtained from the ground through a transformer as an input of the power module. The power module may include: chip V110C24T100BG, chip WRF _ S-3WR2, and high-low capacitance combination circuit. The chip V110C24T100BG is used for generating a 24V direct-current power supply by using a 110V direct-current power supply to supply power to the flowmeter and the motor driving module; the high-low capacitance combined circuit is used for filtering a 24V direct-current power supply and outputting the filtered power supply to a chip WRF _ S-3WR2 after primary filtering; the chip WRF _ S-3WR2 is used for generating a 3.3V direct-current power supply by using a 24V direct-current power supply; and the 3.3V direct-current power supply is filtered again by the high-low capacitance combined circuit and then is output to the acquisition, storage and control module and the communication module for power supply.
Fig. 5 is a schematic diagram of a motor driving module of the intelligent data regulating system according to the present invention, where the motor driving module may be implemented by using a chip L6205. The upper computer sends an instruction to the single chip microcomputer, the instruction is converted into a signal which can be identified by the chip L6205 and then is sent to the chip L6205, the motor is controlled to execute commands of forward rotation, reverse rotation, stop, inching operation and the like, and the motor can drive the water injection nozzle to rotate after executing the commands. Optionally, a protection instruction can be set in the motor driving module, namely, the water nozzle is positively rotated to the water nozzle opening critical point, and the water nozzle is reversely rotated to the water nozzle closing critical point, so that the motor is automatically controlled to stop rotating. The aperture of water injection nozzle passes through limit switch and detects, and the aperture is different, and the voltage that limit switch detected is different, and it satisfies linear relation. Optionally, in order to ensure the normal operation of the operation, a standby motor can be arranged, and can be replaced to maintain the normal operation when the main motor fails, and a pull-down resistor protection circuit can be designed at the place of the voltage input.
Fig. 6 is a schematic diagram of an acquisition storage and control module of the intelligent data control system, which is mainly implemented by an STM32F1 series single chip microcomputer, and the single chip microcomputer with the model number of STM32F103C8T6 can be selected in the system. The singlechip can be connected with the serial port of the flowmeter, can be directly connected with the thermometer and the limit switch, and can be connected with the pressure sensor through an operational amplifier such as LM 358. The thermometer may employ a DS18B20 digital temperature sensor. The five kinds of data of sleeve pressure, oil pressure, temperature, flow, water injection well choke aperture are all through corresponding sensor acquisition signal, are carried out the AD conversion by the singlechip, upload data to host computer PC end through communication module in real time and keep, realize historical data inquiry. Optionally, the acquisition, storage and control module is provided with a current detection circuit for detecting the current of the 24V dc power supply in real time, and when the current exceeds a set threshold, the motor is stopped from rotating to protect the circuit, and meanwhile, the current is uploaded with large information to the upper computer. The acquisition, storage and control module has a storage function, and is mainly used for storing data acquired during power failure and automatically uploading the data after power restoration.
Fig. 7 is a flow chart of a main communication program of the intelligent data control system of the present invention, and the module not only can upload data and related information of a lower computer (control device), but also can control the lower computer by an upper computer. When the upper computer sends a control instruction, the regulating and controlling device (board card) receiving the instruction firstly judges whether the command belongs to the upper computer, and then executes corresponding instructions, including automatic flow regulation, motor forward and reverse rotation, motor stop, motor inching regulation and the like. In order to ensure the communication accuracy and avoid the overlong calculation time, the serial port communication with the communication module can select a CRC16 checking algorithm by using numbers of 0 to 255 and a polynomial x16+x15+x2And+ 1, carrying out binary division operation to obtain an array of 256 numbers, collecting data in a binary mode, taking eight numbers as a group of data, comparing the eight numbers with the 256 numbers, and correspondingly indicating that the data are correct and can be uploaded.
In the above, the embodiment of the present invention provides an intelligent data regulation and control system for an oil field water injection well. The system combines the singlechip technology and the sensor technology, and can realize the acquisition, storage and transmission of pressure, temperature, flow and water nozzle data and the intelligent regulation and control of water injection amount.
The intelligent data regulation and control system of the invention collects data of each monitoring point through the sensor and provides the data to an upper computer such as a PC end for monitoring and management, and can realize effective control of sensor data transmission and water nozzle opening, thereby realizing the intelligent water injection quantity allocation function, meeting the requirement of combining oil exploitation and management by matching with the upper computer, forming the modern management integrated application of collection, transmission, analysis, management and application of production information, and improving the automation and intelligence level of water injection well management.
The intelligent data regulation and control system of the invention also has the advantages that:
1. the intelligent data regulation and control system is provided with a current detection circuit and the compiling of corresponding state program codes, so that corresponding problems can be pointed out while the circuit is protected, and workers can find the problems and make adjustment in time;
2. the intelligent data regulation and control system adopts an STM32F1 series single chip microcomputer in the MCU part, has high stability and high response speed, does not need an external connection memory and an A/D conversion module, and saves space;
3. the software part of the intelligent data regulation and control system adopts C language to compile programs, thereby avoiding the complexity and non-portability of assembly language;
4. the intelligent data regulation and control system not only completes the functional design of the lower computer, but also perfects the establishment of communication with the upper computer, and is more convenient for field setting;
5. the intelligent data regulation and control system can realize remote transmission, and has good effect and more stable performance.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; those of ordinary skill in the art will understand that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An intelligent data regulation and control system for an oil field water injection well is characterized in that,
the intelligent data conditioning system comprises: the system comprises a regulation and control device arranged underground, a communication module arranged on the underground and an armor cable for connecting the regulation and control device and the communication module; the regulation and control device comprises an acquisition, storage and control module, a motor driving module, a power supply module and various sensors; the sensors comprise a flowmeter, a thermometer, a water nozzle opening sensor and a pressure sensor;
the acquisition, storage and control module is respectively in communication connection with the various sensors, the motor driving module and the communication module, and the communication module is in communication connection with an upper computer; the power supply module supplies power to the acquisition, storage and control module, the communication module, the motor driving module and the flowmeter;
the communication module is used for transmitting the data sent by the acquisition, storage and control module to an upper computer and transmitting the instruction sent by the upper computer to the acquisition, storage and control module;
the acquisition, storage and control module is used for acquiring sensor data according to a set period, uploading the data to the upper computer and receiving an instruction sent by the upper computer through the communication module, and controlling the motor driving module to drive the motor to adjust the opening degree of the water nozzle according to the instruction.
2. The system of claim 1,
the water injection well is characterized in that a water injection pipe column and a water distribution device are arranged in the oil field water injection well, the water distribution device comprises a pipe column connecting base connected with the water injection pipe column and a water distributor arranged on the pipe column connecting base, and the water distributor comprises a water injection nozzle and a motor used for controlling the opening degree of the water nozzle of the water injection nozzle;
the regulation and control device is installed in the base is connected to the tubular column, motor drive module is used for drive and control the motor, the flowmeter is used for detecting the flow through the water injection nozzle, the thermometer is used for detecting the temperature in the well, two pressure sensor is used for detecting the oil pressure and the casing pressure of oil field water injection well respectively, water injection nozzle opening sensor adopts limit switch in order to detect the water injection nozzle's water injection nozzle opening.
3. The system of claim 1,
the acquisition, storage and control module comprises a single chip microcomputer, the single chip microcomputer acquires casing pressure, oil pressure, temperature, flow and water nozzle opening data from corresponding sensors through an operation program, and performs A/D conversion and real-time uploading on the acquired data.
4. The system of claim 1,
the acquisition, storage and control module is also used for automatically storing the sensor data acquired at the power-off moment when the power is off, and automatically uploading the stored data to the upper computer after the power is restored.
5. The system of claim 1,
the acquisition, storage and control module is also used for automatically entering a dormant state when not working.
6. The system of claim 1,
the power module is used for converting a 110V direct-current power supply into a 24V direct-current power supply and further converting the 24V direct-current power supply into a 3.3V direct-current power supply, outputting the 24V direct-current power supply to the motor driving module and the flowmeter, and outputting the 3.3V direct-current power supply to the acquisition, storage and control module and the communication module.
7. The system of claim 6,
the power module includes: the chip comprises a V110C24T100BG chip for converting an input 110V direct-current power supply into a 24V direct-current power supply, and a WRF _ S-3WR2 chip for converting the 24V direct-current power supply into a 3.3V direct-current power supply.
8. The system of claim 6,
the acquisition, storage and control module further comprises a current detection circuit, the current detection circuit is used for detecting the current of the 24V direct-current power supply in real time, when the current exceeds a set threshold value, the motor driving module is instructed to stop the motor from rotating to protect the circuit, and information that the current is too large is uploaded to an upper computer.
9. The system of claim 1,
the motor driving module is used for controlling the motor to perform forward rotation, reverse rotation, stop and inching operation according to the instruction so as to adjust the opening of the water injection nozzle and realize flow regulation.
10. The system of claim 1,
the single chip microcomputer adopts STM32F1 series single chip microcomputers, and the motor driving module adopts an L6205 chip.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664169A (en) * | 2020-12-31 | 2021-04-16 | 胡克 | Accurate water injection method and accurate water injection system for oil field low injection well |
| CN113236199A (en) * | 2020-11-09 | 2021-08-10 | 中国海洋石油集团有限公司 | Oil well cable control layered monitoring and intelligent production allocation system and use method thereof |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236199A (en) * | 2020-11-09 | 2021-08-10 | 中国海洋石油集团有限公司 | Oil well cable control layered monitoring and intelligent production allocation system and use method thereof |
| CN112664169A (en) * | 2020-12-31 | 2021-04-16 | 胡克 | Accurate water injection method and accurate water injection system for oil field low injection well |
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