A plunger gas lift control system and method

Abstract

The application discloses a plunger gas lift control system and method, and relates to the technical field of automatic control design; the system detects the plunger reaching state in real time through a plunger reaching sensor and outputs a level signal; a plunger gas lift controller obtains plunger operation parameter data according to the level signal, obtains an actual plunger rising time according to the opening time of a solenoid valve and the output time of the level signal, generates a parameter adjustment instruction according to a plunger rising target time and the actual plunger rising time, and collects casing pressure and flow information; a cloud server generates a terminal instruction according to the plunger operation parameter data, the parameter adjustment instruction, the casing pressure and the flow information; the plunger gas lift controller adjusts the flow continuation time and / or the well closing time according to the terminal instruction; and a control instruction is generated after the flow continuation time and / or the well closing time end, and the solenoid valve is controlled to be turned on or turned off according to the control instruction; the application realizes real-time monitoring of the plunger gas lift working state and real-time control of the plunger gas lift.

Description

Technical Field

[0001] This invention relates to the field of automatic control design technology, and in particular to a plunger air lift control system and method. Background Technology

[0002] Plunger gas lift is a drainage and gas production technology used in the early stages of water breakthrough in gas wells. In this technology, the plunger acts as the mechanical interface between gas and liquid. Driven by the well's own energy, the plunger moves up and down within the tubing in a cyclical manner, achieving periodic liquid lifting. This effectively prevents liquid slippage and gas surge, improving intermittent lift efficiency. However, in practical oilfield applications, the plunger gas lift control system often lacks proper parameter settings for system optimization. On-site operation relies heavily on operator experience, resulting in low efficiency. Furthermore, the system lacks real-time diagnostic capabilities, and the high investment required for remote data transmission systems increases operating and management costs. Summary of the Invention

[0003] The purpose of this invention is to provide a plunger gas lift control system and method, which can monitor the working status of the plunger gas lift in real time and thus control the plunger gas lift in real time.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] A plunger gas lift control system is provided, wherein the plunger gas lift control system is connected to a cloud server, a solenoid valve, a pressure sensor and a flow sensor at the wellhead, the pressure sensor is used to collect oil casing pressure, the flow sensor is used to collect flow information, and the cloud server is used to issue control commands. The plunger gas lift control system includes:

[0006] A plunger arrival sensor is used to detect the plunger arrival status in real time and output an electrical signal.

[0007] A plunger gas lift controller, connected to the plunger arrival sensor, pressure sensor, flow sensor, and solenoid valve, is used to control the opening of the solenoid valve so that the plunger arrival sensor can detect the plunger arrival status in real time and output an electrical signal; obtain plunger operating parameter data based on the electrical signal; obtain the actual plunger rise time based on the opening time of the solenoid valve and the output time of the electrical signal; generate a parameter adjustment command based on the target plunger rise time and the actual plunger rise time; and collect oil casing pressure and flow information. The cloud server is used to generate terminal commands based on the parameter adjustment commands, plunger operating parameter data, oil casing pressure, and flow information. The plunger gas lift controller is also used to adjust the inflow time and / or shut-in time according to the terminal commands; generate a control command after the inflow time and / or shut-in time has ended; and control the opening and closing of the solenoid valve according to the control command.

[0008] Optionally, the plunger air lift controller includes:

[0009] A signal conditioning circuit, connected to the plunger arrival sensor, is used to filter and amplify the level signal to obtain a square wave signal;

[0010] The first TTL to 485 converter is connected to the pressure sensor and flow sensor to obtain oil jacket pressure and flow information.

[0011] The controller, connected to the signal conditioning circuit and the first TTL to 485 converter, is used to obtain plunger operating parameter data based on the square wave signal; control the opening of the solenoid valve to enable the plunger arrival sensor to detect the plunger arrival status in real time and output a level signal; and receive the oil sleeve pressure and flow information.

[0012] A timer, connected to the plunger arrival sensor and the controller, is used to obtain the actual plunger rise time based on the opening time of the solenoid valve and the output time of the level signal; the controller is also used to generate parameter adjustment commands based on the target plunger rise time and the actual plunger rise time.

[0013] The second TTL to 485 converter is connected to the controller and is used to acquire the parameter adjustment command, oil sleeve pressure, flow information and plunger operating parameter data;

[0014] A communication unit, connected to the second TTL-to-485 circuit and a cloud server, is used to transmit the parameter adjustment command, oil casing pressure, flow rate information, and plunger operating parameters to the cloud server. The cloud server is used to generate terminal commands based on the parameter adjustment command, plunger operating parameter data, oil casing pressure, and flow rate information. The communication unit transmits the terminal commands issued by the cloud server to the controller via the second TTL-to-485 circuit. The controller is also used to adjust the flow resumption time and / or shut-in time according to the terminal commands. The timer generates control commands based on the flow resumption time and / or shut-in time. The controller generates on / off commands based on the control commands.

[0015] A drive unit, connected to the controller and the solenoid valve, is used to control the on / off state of the solenoid valve according to the on / off command.

[0016] Optionally, the plunger air lift controller further includes:

[0017] An input device, connected to the controller, is used to receive work instructions input by the staff;

[0018] The controller is also used to adjust the inflow time and / or shut-in time according to the working instructions; generate control instructions after the inflow time and / or shut-in time have ended; control the on / off state of the solenoid valve according to the control instructions; change the working mode and working parameters of the plunger gas lift well according to the working instructions; obtain working data according to the working mode and working parameters; the second TTL to 485 circuit is used to receive the working data; and the communication unit is used to transmit the working data to the cloud server.

[0019] Optionally, the plunger air lift controller further includes:

[0020] A display, connected to the controller, is used to display the working data, oil casing pressure, flow information, and plunger operating parameter data in real time.

[0021] Optionally, the plunger air lift control system further includes:

[0022] A power management unit, connected to the plunger air lift controller, is used to distribute the output voltage to the plunger air lift controller;

[0023] A storage battery is connected to the power management unit and is used to supply power to the power management unit.

[0024] Optionally, the plunger air lift control system further includes:

[0025] A solar panel, connected to the battery, is used to charge the battery.

[0026] Optionally, the controller is a master control MCU.

[0027] Optionally, the communication unit is a 4G module circuit.

[0028] To achieve the above objectives, the present invention provides the following solution:

[0029] A plunger gas lift control method, wherein the plunger gas lift control method applies the above-mentioned plunger gas lift control system, and the plunger gas lift control method includes the following steps:

[0030] The opening of the solenoid valve controls the plunger arrival sensor to detect the plunger arrival status in real time and output a level signal;

[0031] The plunger operating parameter data is obtained based on the level signal;

[0032] The actual plunger rise time is obtained based on the opening time of the solenoid valve and the output time of the level signal.

[0033] A parameter adjustment command is generated based on the target plunger rise time and the actual plunger rise time.

[0034] The continuous flow time and / or shut-in time are adjusted by terminal instructions generated by the cloud server based on the parameter adjustment instructions, plunger operating parameter data, oil casing pressure and flow information.

[0035] A control command is generated after the continuous flow time and / or shut-in time have ended; and the solenoid valve is opened and closed according to the control command.

[0036] Optionally, a parameter adjustment command is generated based on the target plunger rise time and the actual plunger rise time, specifically including:

[0037] The target plunger ascent time is obtained based on the well depth and the plunger ascent target speed.

[0038] The waiting time is obtained based on the target time of the plunger's ascent.

[0039] Determine the actual plunger rise time and the waiting time, and generate parameter adjustment instructions.

[0040] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0041] The plunger gas lift control system provided by this invention includes a plunger arrival sensor that detects the plunger arrival status in real time and outputs an electrical signal; a plunger gas lift controller that controls the opening of the solenoid valve to enable the plunger arrival sensor to detect the plunger arrival status in real time and output an electrical signal; plunger operating parameter data obtained based on the electrical signal; actual plunger rise time obtained based on the opening time of the solenoid valve and the output time of the electrical signal; parameter adjustment instructions generated based on the target plunger rise time and the actual plunger rise time; a cloud server that generates terminal instructions based on the parameter adjustment instructions, plunger operating parameter data, oil casing pressure and flow information; a plunger gas lift controller that adjusts the flow resumption time and / or shut-in time based on the terminal instructions; and a control instruction that controls the opening and closing of the solenoid valve after the flow resumption time and / or shut-in time has ended. The system can monitor the plunger gas lift operating status in real time and thus perform real-time control of the plunger gas lift. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the module structure of the plunger air lift control system of the present invention;

[0044] Figure 2This is a schematic flowchart of the plunger gas lift control method of the present invention;

[0045] Figure 3 This is a schematic diagram of a specific embodiment of the plunger air lift control method of the present invention.

[0046] Symbol explanation:

[0047] Plunger arrival sensor-1, plunger air lift controller-2, signal conditioning circuit-3, first TTL to 485 circuit-4, controller-5, second TTL to 485 circuit-6, communication unit-7, drive unit-8, input device-9, display-10, power management unit-11, battery-12, solar panel-13, cloud server-14, solenoid valve-15, pressure sensor-16, flow sensor-17, timer-18. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] The purpose of this invention is to provide a plunger gas lift control system that can realize real-time monitoring of the working status of the plunger gas lift and real-time control of the plunger gas lift.

[0050] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] like Figure 1 As shown, the plunger gas lift control system of the present invention is connected to a cloud server 14, a solenoid valve 15, a pressure sensor 16 at the wellhead, and a flow sensor 17. The pressure sensor 16 is used to collect the oil casing pressure, the flow sensor 17 is used to collect flow information, and the cloud server 14 is used to issue control commands. The plunger gas lift control system includes a plunger arrival sensor 1 and a plunger gas lift controller 2.

[0052] The plunger arrival sensor 1 is used to detect the plunger arrival status in real time and output an electrical signal.

[0053] The plunger gas lift controller 2 is connected to the plunger arrival sensor 1, pressure sensor 16, flow sensor 17, and solenoid valve 15. The plunger gas lift controller 2 controls the opening of the solenoid valve 15 to enable the plunger arrival sensor 1 to detect the plunger arrival status in real time and output an electrical signal; obtains plunger operating parameter data based on the electrical signal; obtains the actual plunger rise time based on the opening time of the solenoid valve and the output time of the electrical signal; generates a parameter adjustment command based on the target plunger rise time and the actual plunger rise time; and collects oil casing pressure and flow information. The cloud server 14 generates terminal commands based on the parameter adjustment commands, plunger operating parameter data, oil casing pressure, and flow information. The plunger gas lift controller 2 also adjusts the inflow time and / or shut-in time according to the terminal commands; generates control commands after the inflow time and / or shut-in time have ended; and controls the opening and closing of the solenoid valve 15 according to the control commands.

[0054] The plunger arrival sensor 1 detects the plunger arrival status in real time. When the plunger reaches the wellhead, the plunger arrival sensor 1 outputs a high-level signal. The plunger arrival sensor 1 is based on an STM32 microprocessor; at the same time, a magnetic induction sensor is installed inside the plunger arrival sensor 1, which detects the plunger arrival status in real time; the output level signal is processed by the STM32 microprocessor.

[0055] Preferably, the plunger air lift controller 2 includes: a signal conditioning circuit 3, a first TTL to 485 circuit 4, a controller 5, a second TTL to 485 circuit 6, a timer 18, a communication unit 7, and a drive unit 8.

[0056] The signal conditioning circuit 3 is connected to the plunger arrival sensor 1, and the signal conditioning circuit 3 is used to filter and amplify the level signal to obtain a square wave signal.

[0057] The first TTL to 485 circuit 4 is connected to the pressure sensor 16 and the flow sensor 17. The first TTL to 485 circuit 4 is used to acquire oil jacket pressure and flow information.

[0058] The controller 5 is connected to the signal conditioning circuit 3 and the first TTL to 485 converter 4. The controller 5 is used to obtain plunger operating parameter data based on the square wave signal; control the opening of the solenoid valve 15 so that the plunger arrival sensor 1 can detect the plunger arrival status in real time and output a level signal; and receive the oil casing pressure and flow information.

[0059] The timer 18 is connected to the plunger arrival sensor 1 and the controller 5. The timer 18 is used to obtain the actual plunger rise time based on the opening time of the solenoid valve 15 and the output time of the level signal; the controller 5 is also used to generate a parameter adjustment command based on the target plunger rise time and the actual plunger rise time.

[0060] The second TTL to 485 circuit 6 is connected to the controller 5. The second TTL to 485 circuit 6 is used to receive the parameter adjustment command, oil sleeve pressure, flow information and plunger operating parameter data.

[0061] The communication unit 7 is connected to the second TTL-to-485 circuit 6 and the cloud server 14. The communication unit 7 is used to transmit the parameter adjustment command, oil casing pressure, flow rate information, and plunger operating parameters to the cloud server 14. The communication unit 7 transmits the terminal command issued by the cloud server 14 to the controller 5 through the second TTL-to-485 circuit 6. The controller 5 is also used to adjust the flow time and / or shut-in time according to the terminal command. The timer 18 generates control commands according to the flow time and / or shut-in time. The controller 5 generates on / off commands according to the control commands.

[0062] The drive unit 8 is connected to the controller 5 and the solenoid valve 15. The drive unit 8 is used to control the on / off state of the solenoid valve 15 according to the on / off command. The drive unit 8 is composed of a transistor. The digital output of the controller 5 is driven by the transistor and then connected to the relay of the drive unit 8, thereby ensuring the effective conduction and cutoff of the relay, and thus realizing the on / off state of the solenoid valve 15.

[0063] To reduce interference from the on-site environment and overcome the influence of noise, the signal conditioning circuit 3 was designed. Through the signal conditioning circuit 3 and related detection algorithms, the accuracy of plunger arrival signal detection is efficiently ensured, providing precise data for optimized plunger lift control. The signal conditioning circuit 3 receives the signal from the plunger arrival sensor 1, and after filtering and amplification, inputs it to the GPIO pin of the controller 5. The controller 5 determines the plunger arrival state based on the change in the level signal on this pin.

[0064] The plunger gas lift control system is based on a powerful, highly capable single-chip microcomputer controller, with controller 5 serving as the main control MCU. Furthermore, the main control MCU utilizes the RT-Thread Studio operating system to achieve high real-time data transmission from sensors and remote data, resulting in more precise control and a significant improvement in the production efficiency of the plunger gas lift well.

[0065] Furthermore, the communication unit 7 is a 4G module circuit. The 4G module circuit locks the IP address of the cloud server 14 and, after configuration, enables remote data transmission. The cloud server 14 receives data from the communication unit 7, and after software calculation and analysis, presents the plunger operating status and gas lift well operating parameters on the cloud server 14.

[0066] Meanwhile, the first TTL to 485 circuit 4 and the second TTL to 485 circuit 6 use dedicated TTL to 485 chips, and the communication unit 7 uses a 4G network transceiver chip, which simplifies the peripheral circuit. The communication unit 7 has the characteristics of reducing system power consumption, convenient modification of working mode, secure and fast data transmission, and good performance.

[0067] For data transmission, the serial interface of controller 5 is connected to the first TTL-to-485 circuit 4 for transmission using the MODBUS RTU protocol. The serial interface of controller 5 is also connected to the second TTL-to-485 circuit 6, enabling level conversion and data transmission via the MODBUS RTU protocol. Pins A and B of the second TTL-to-485 circuit 6 are connected to pins A and B of the communication unit 7 for transparent data transmission. The MODBUS RTU communication protocol is used to complete data communication between the pressure sensor 16 and controller 5, the flow sensor 17 and controller 5, and the controller 5 and cloud server 14, ensuring accurate data transmission and control. Controller 5 acts as both a master and slave, effectively saving hardware resources and improving real-time program processing.

[0068] When the controller 5 acts as the host, it reads data from the pressure sensor 16 and the flow sensor 17. The pressure sensor 16 and the flow sensor 17 are hardware-connected to the first TTL-to-485 circuit 4 via RS485. After the first TTL-to-485 circuit 4 sends the pressure and flow data to the controller 5, the controller 5 saves the data to its internal FLASH memory and forwards the data through the second TTL-to-485 circuit 6.

[0069] When the controller 5 acts as a slave device, it receives control commands from the cloud server 14, enabling the plunger air lift controller 2 to operate in remote operation mode.

[0070] Optionally, the plunger air lift controller 2 further includes an input device 9.

[0071] The input device 9 is connected to the controller 5. The input device 9 is used to receive work instructions input by the staff.

[0072] The controller 5 is also used to adjust the inflow time and / or shut-in time according to the working instructions; generate control instructions after the inflow time and / or shut-in time have ended; control the on / off state of the solenoid valve 15 according to the control instructions; change the working mode and working parameters of the plunger gas lift well according to the working instructions; obtain working data according to the working mode and working parameters; the second TTL to 485 circuit 6 is used to receive the working data; and the communication unit 7 is used to transmit the working data to the cloud server 14.

[0073] To enable local control of the plunger gas lift control system, the input device 9 is equipped with four buttons, each with functions for mode selection, parameter adjustment, and entering / exiting adjustment. The controller 5 determines the button values ​​to ascertain the operating mode and parameter settings. Once confirmed, the plunger gas lift control system begins operation. Button #1 is used to select the plunger gas lift operating mode, which includes timed well opening / closing, time optimization, and pressure optimization. Button #2 is used to set the operating parameters for the corresponding operating mode. Button #3 is used to confirm the operating parameters. Button #4 is used to query historical data, including real-time operating parameters of the gas lift well and plunger arrival time parameters.

[0074] To facilitate local field operators in viewing plunger lift operating information, the plunger lift controller 2 also includes a display 10.

[0075] The display 10 is connected to the controller 5, and the display 10 is used to display the working data, oil casing pressure, flow information and plunger operating parameter data in real time.

[0076] The plunger gas lift control system has two operating modes: local and remote. On-site personnel can set the working status and parameters of the plunger gas lift well by pressing buttons, while remote operators can read the data uploaded by the controller 5 and issue control commands to it through the cloud server 14.

[0077] Preferably, the plunger air lift control system further includes a power management unit 11 and a battery 12.

[0078] The power management unit 11 is connected to the plunger air lift controller 2, and the power management unit 11 is used to allocate output voltage to the plunger air lift controller 2.

[0079] The battery 12 is connected to the power management unit 11, and the battery 12 is used to supply power to the power management unit 11.

[0080] In order to effectively distribute power to different components of the system, the power management unit 11 manages the charging and discharging of the battery 12 on the one hand, and realizes power distribution on the other hand. The power management unit 11 outputs 5V and 3.3V DC voltages.

[0081] Optionally, the plunger air lift control system also includes a solar panel 13.

[0082] The solar panel 13 is connected to the battery 12, and the solar panel 13 is used to charge the battery 12.

[0083] To achieve the above objectives, the present invention also provides a plunger gas lift control method (e.g. Figure 2 As shown in the figure, the plunger air lift control method includes the following steps:

[0084] S1 controls the opening of solenoid valve 15 so that the plunger reaches sensor 1 to detect the plunger arrival status in real time and outputs a level signal.

[0085] S2, obtain the plunger operating parameter data based on the level signal.

[0086] S3, the actual plunger rise time is obtained based on the opening time of the solenoid valve 15 and the output time of the level signal.

[0087] S4, Generate parameter adjustment command based on the target time of plunger rise and the actual plunger rise time.

[0088] S5, the continuous flow time and / or shut-in time are adjusted by terminal instructions generated by the cloud server 14 based on the parameter adjustment instructions, plunger operating parameter data, oil casing pressure and flow information.

[0089] S6, after the completion of the follow-through time and / or shut-in time, a control command is generated; and the solenoid valve 15 is controlled to open or close according to the control command.

[0090] In addition, step S4 specifically includes:

[0091] S401, the target time for plunger ascent is obtained based on the well depth and the target plunger ascent speed.

[0092] S402, the waiting time is obtained based on the target time of the plunger rising.

[0093] S403 determines the actual plunger rise time and waiting time, and generates a parameter adjustment command.

[0094] Steps S3-S5 are illustrated in a specific embodiment:

[0095] The plunger air lift controller 2 obtains the actual plunger rise time t6 based on the opening time of the solenoid valve 15 and the output time of the level signal; the target plunger rise time t5 is obtained through the following formula:

[0096] t5 = s / v.

[0097] Where, s is the well depth, v is the target rising speed of the plunger, and t5 is the target rising time of the plunger;

[0098] The waiting arrival time is obtained according to the following formula:

[0099] t1 = 2t5.

[0100] Where, t1 is the waiting arrival time.

[0101] Judge the magnitudes of the actual rising time t6 of the plunger and the waiting arrival time t1.

[0102] When t6 > t1, the plunger does not reach the wellhead within the waiting arrival time t1; at this time, a parameter adjustment instruction is generated.

[0103] When t6 < t1, the plunger reaches the wellhead within the waiting arrival time t1, and judge the magnitudes of the actual rising time t6 of the plunger and the target rising time t5 of the plunger.

[0104] When t6 > t5, the plunger reaches at a too slow time, and at this time, a parameter adjustment instruction is generated. The cloud server 14 generates a terminal instruction according to the parameter adjustment instruction, the plunger operation parameter data, the casing pressure and the flow information; as Figure 3 shown, the plunger gas lift controller 2 is further configured to adjust the continuous flow shut-in mode according to the terminal instruction and then the continuous flow time and / or the shut-in time according to the following formula.

[0105]

[0106] Where, optrate is the optimization ratio; the continuous flow time is t2; the shut-in time is t3; the forced shut-in time is t4. The continuous flow time is the time for the plunger to reach the wellhead for gas production; the shut-in time is the time for the formation energy storage and the bottom hole liquid and gas intake after the valve is closed; the continuous flow time and the shut-in time can both be adjusted by adjusting the on-off of the solenoid valve 15.

[0107] If the continuous flow shut-in mode is only shut-in, reduce the shut-in time;

[0108] If the continuous flow shut-in mode is only continuous flow, increase the continuous flow time.

[0109] If the continuous flow shut-in mode is continuous flow and shut-in, reduce the shut-in time and increase the continuous flow time.

[0110] When the continuous flow time and / or the shut-in time ends, a control instruction is generated; control the on-off of the solenoid valve 15 according to the control instruction.

[0111] When t6 < t5, the plunger reaches at a too fast time, and at this time, a parameter adjustment instruction is generated.

[0112]

[0113] The optimization ratio can be any one of 1:1, 2:1, or 3:1, and can be adjusted according to the actual situation.

[0114] If the continuous flow shutdown mode is set to shutdown only, increase the shutdown time.

[0115] If the continuous flow shutdown mode is set to continuous flow only, reduce the continuous flow time.

[0116] If the continuous flow and shutdown mode is both continuous flow and shutdown, increase the shutdown time and decrease the continuous flow time.

[0117] A control command is generated after the continuous flow time and / or shut-in time have ended; the solenoid valve 15 is controlled to open or close according to the control command.

[0118] That is, a control command is generated after the continuous flow time and / or shut-in time have ended; during the continuous flow phase, it is determined whether the continuous flow time has ended; when the continuous flow time ends, the shut-in phase begins, and it is determined whether the shut-in time has ended; when the shut-in time ends, the solenoid valve 15 is controlled to open or close according to the control command.

[0119] This invention enables real-time monitoring of the working status of the plunger gas lift and real-time control of the plunger gas lift.

[0120] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0121] This document uses specific examples to illustrate the principles and implementation methods of the present invention; however, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as limiting the present invention.

Claims

1. A plunger air lift control system, characterized in that, The plunger gas lift control system is connected to a cloud server, a solenoid valve, and a pressure sensor and flow sensor at the wellhead. The pressure sensor is used to collect oil casing pressure, the flow sensor is used to collect flow information, and the cloud server is used to issue control commands. The plunger gas lift control system includes: A plunger arrival sensor is used to detect the plunger arrival status in real time and output an electrical signal. A plunger gas lift controller, connected to the plunger arrival sensor, pressure sensor, flow sensor, and solenoid valve, is used to control the opening of the solenoid valve so that the plunger arrival sensor can detect the plunger arrival status in real time and output an electrical signal; obtain plunger operating parameter data based on the electrical signal; obtain the actual plunger rise time based on the opening time of the solenoid valve and the output time of the electrical signal; generate a parameter adjustment command based on the target plunger rise time and the actual plunger rise time; and collect oil casing pressure and flow information. The cloud server is used to generate terminal commands based on the parameter adjustment commands, plunger operating parameter data, oil casing pressure, and flow information. The plunger gas lift controller is also used to adjust the inflow time and / or shut-in time according to the terminal commands; generate a control command after the inflow time and / or shut-in time has ended; and control the opening and closing of the solenoid valve according to the control command. The plunger air lift controller includes: A signal conditioning circuit, connected to the plunger arrival sensor, is used to filter and amplify the level signal to obtain a square wave signal; The first TTL to 485 converter is connected to the pressure sensor and flow sensor to obtain oil jacket pressure and flow information. The controller, connected to the signal conditioning circuit and the first TTL to 485 converter, is used to obtain plunger operating parameter data based on the square wave signal; control the opening of the solenoid valve to enable the plunger arrival sensor to detect the plunger arrival status in real time and output a level signal; and receive the oil sleeve pressure and flow information. A timer, connected to the plunger arrival sensor and the controller, is used to obtain the actual plunger rise time based on the opening time of the solenoid valve and the output time of the level signal; the controller is also used to generate parameter adjustment commands based on the target plunger rise time and the actual plunger rise time. The second TTL to 485 converter is connected to the controller and is used to acquire the parameter adjustment command, oil sleeve pressure, flow information and plunger operating parameter data; A communication unit, connected to the second TTL-to-485 circuit and a cloud server, is used to transmit the parameter adjustment command, oil casing pressure, flow rate information, and plunger operating parameters to the cloud server. The cloud server is used to generate terminal commands based on the parameter adjustment command, plunger operating parameter data, oil casing pressure, and flow rate information. The communication unit transmits the terminal commands issued by the cloud server to the controller via the second TTL-to-485 circuit. The controller is also used to adjust the flow resumption time and / or shut-in time according to the terminal commands. The timer generates control commands based on the flow resumption time and / or shut-in time. The controller generates on / off commands based on the control commands. A drive unit, connected to the controller and the solenoid valve, is used to control the on / off state of the solenoid valve according to the on / off command.

2. The plunger air lift control system according to claim 1, characterized in that, The plunger air lift controller further includes: An input device, connected to the controller, is used to receive work instructions input by the staff; The controller is also used to adjust the inflow time and / or shut-in time according to the working instructions; generate control instructions after the inflow time and / or shut-in time have ended; control the on / off state of the solenoid valve according to the control instructions; change the working mode and working parameters of the plunger gas lift well according to the working instructions; obtain working data according to the working mode and working parameters; the second TTL to 485 circuit is used to receive the working data; and the communication unit is used to transmit the working data to the cloud server.

3. The plunger air lift control system according to claim 2, characterized in that, The plunger air lift controller further includes: A display, connected to the controller, is used to display the working data, oil casing pressure, flow information, and plunger operating parameter data in real time.

4. The plunger air lift control system according to claim 1, characterized in that, The plunger air lift control system also includes: A power management unit, connected to the plunger air lift controller, is used to distribute the output voltage to the plunger air lift controller; A storage battery is connected to the power management unit and is used to supply power to the power management unit.

5. The plunger air lift control system according to claim 4, characterized in that, The plunger air lift control system also includes: A solar panel, connected to the battery, is used to charge the battery.

6. The plunger air lift control system according to claim 1, characterized in that, The controller is the main control MCU.

7. The plunger air lift control system according to claim 1, characterized in that, The communication unit is a 4G module circuit.

8. A plunger gas lift control method, characterized in that, The plunger gas lift control method uses the plunger gas lift control system according to any one of claims 1-7, and the plunger gas lift control method includes the following steps: The opening of the solenoid valve controls the plunger arrival sensor to detect the plunger arrival status in real time and output a level signal; The plunger operating parameter data is obtained based on the level signal; The actual plunger rise time is obtained based on the opening time of the solenoid valve and the output time of the level signal. A parameter adjustment command is generated based on the target plunger rise time and the actual plunger rise time. The continuous flow time and / or shut-in time are adjusted by terminal instructions generated by the cloud server based on the parameter adjustment instructions, plunger operating parameter data, oil casing pressure and flow information. A control command is generated after the continuous flow time and / or shut-in time have ended; and the solenoid valve is opened and closed according to the control command.

9. The plunger gas lift control method according to claim 8, characterized in that, Based on the target plunger rise time and the actual plunger rise time, a parameter adjustment command is generated, specifically including: The target plunger ascent time is obtained based on the well depth and the plunger ascent target speed. The waiting time is obtained based on the target time of the plunger's ascent. Determine the actual plunger rise time and the waiting time, and generate parameter adjustment instructions.

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