Gas well plunger gas lift well opening and closing system adjusting method and control system

Abstract

The invention discloses a gas well plunger gas lift well opening and closing system adjusting method and control system, and the method comprises the steps: obtaining production curves of N historical production cycles, N being a positive integer greater than or equal to 1; according to the production curves of the historical periods, the optimal well opening and closing time and the period gas production rate of all the historical production periods are sequentially determined; and respectively carrying out weighted summation on the optimal well opening and closing time and the periodic gas production rate of the determined N historical production periods to obtain the well opening and closing time and the periodic gas production rate corresponding to the optimal well opening and closing system. By means of the scheme, the plunger gas lift well system can be automatically set, the plunger gas lift well on-site switch automatic adjustment is achieved, and the reasonability and timeliness of system adjustment are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas field development, and in particular to a gas well plunger gas lift switch well system adjustment method and control system. Background Art

[0002] After the gas field development enters the middle and late stages, as the formation pressure decreases, the gas well's liquid carrying capacity decreases, and the formation water and condensate cannot be effectively discharged, resulting in liquid accumulation in the wellbore, which seriously affects the gas well production effect. The plunger gas lift technology uses the plunger as a fixed interface between gas and liquid, which can effectively reduce the upward movement of gas and the slippage of liquid, and improve the gas well's liquid carrying efficiency. Due to its advantages of high degree of automation, low cost, and simple installation, it has been widely used in major gas fields at home and abroad.

[0003] At present, conventional control methods for plunger gas lift, such as timing and constant pressure switches, require a large amount of manual parameter adjustment and daily management work, and the effect of parameter adjustment is highly dependent on the professional knowledge level and management experience of relevant technical personnel in gas production engineering, gas reservoir engineering, etc. The rationality of system adjustment cannot be guaranteed, which affects the development effect of gas fields. Summary of the invention

[0004] The present invention provides a gas well plunger gas lift switch well system adjustment method and control system, which realize automatic setting of the plunger gas lift well system and automatic adjustment of the plunger gas lift well on-site switch, thereby ensuring the rationality and timeliness of the system adjustment.

[0005] To this end, the present invention provides the following technical solutions:

[0006] A method for adjusting a gas well plunger gas lift switch well system, the method comprising:

[0007] Obtain production curves of N historical production cycles, where N is a positive integer greater than or equal to 1;

[0008] Determine the optimal well opening and closing time and the optimal cycle gas production of each historical production cycle in turn according to the production curve of the historical cycle;

[0009] The optimal well-opening and closing time and the optimal cycle gas production of the determined N historical production cycles are weightedly summed to obtain the well-opening and closing time and cycle gas production corresponding to the optimal well-opening and closing system.

[0010] Optionally, determining the optimal well opening and closing time and the periodic gas production of each historical production period in sequence according to the production curve of the historical period includes:

[0011] For each historical production cycle, determining a plurality of well opening and closing systems within the historical production cycle;

[0012] According to the production curve of the historical production cycle, the gas production per unit time in each switching well system is calculated respectively;

[0013] Eliminate the switching well systems whose plunger gas lift operation parameters do not meet the boundary conditions from among the multiple switching well systems in the historical production cycle;

[0014] The switching well time and cycle gas production corresponding to the switching well system to which the maximum gas production per unit time belongs among the remaining switching well systems are selected as the optimal switching well time and cycle gas production of the historical production cycle.

[0015] Optionally, the determining of a plurality of well opening and closing systems within the historical production cycle includes:

[0016] Setting the casing pressure parameters of the switch wells in the historical production cycle;

[0017] According to the casing pressure parameters of the switching wells, multiple switching well systems of the historical production cycle are determined.

[0018] Optionally, the switch well casing pressure parameters include: minimum switch well casing pressure, maximum switch well casing pressure and casing pressure increment;

[0019] Determining the multiple switching well systems within the historical production cycle according to the switching well casing pressure parameter includes:

[0020] Taking the minimum well-opening casing pressure as a base point and the first step length as a unit, the casing pressure increment is continuously extended to the maximum well-opening casing pressure to obtain K well-opening casing pressures;

[0021] Taking the minimum shut-in casing pressure as a base point and the second step length as a unit, the casing pressure increment is continuously extended to the maximum shut-in casing pressure to obtain L shut-in casing pressures;

[0022] The first step length and the second step length are the casing pressure increments during the well opening and shut-in periods, respectively;

[0023] Determine M=K×L opening and closing well systems within the historical production cycle, where K and L are positive integers greater than or equal to 1.

[0024] Optionally, the calculating the gas production per unit time of each well switching system according to the production curve of the historical production cycle includes:

[0025] For each well switching system, according to the production curve of the historical production cycle, the well switching casing pressure point corresponding to the well switching system cycle is determined;

[0026] Calculate the well opening time T according to the switch casing pressure point onij and shut-in time T offij ;

[0027] According to the well opening time T onij and shut-in time T offijDetermine the gas production per unit time within the well switching system.

[0028] Optionally, the minimum switching well casing pressure of the i-th production cycle is 0.8-1.0 times the switching well casing pressure of the i-th production cycle, the maximum switching well casing pressure is 1.0-1.2 times the switching well casing pressure of the i-th production cycle, and the casing pressure increment is 0.1-0.3Mpa, i∈N.

[0029] Optionally, the boundary condition is one or more of the load coefficient, the plunger rising speed, the casing pressure micro-rise range at the end of well opening, and whether the plunger reaches the wellhead.

[0030] A gas well plunger gas lift switch well system control system, the system includes: a data acquisition module, a storage module, a system determination module, and a system execution module;

[0031] The data acquisition module is used to collect on-site data;

[0032] The storage module is used to store the field data collected by the data collection module;

[0033] The system determination module is used to determine the optimal switching well system and predicted gas production by using the gas well plunger gas lift switching well system adjustment method according to any one of claims 1 to 7, and send the optimal switching well system to the system execution module;

[0034] The system execution module is used to control the on-site solenoid valve according to the optimal well opening and closing system, so that the on-site solenoid valve controls the plunger gas well switch to close or open.

[0035] Optionally, the optimal well opening and closing system includes: well opening time and well closing time;

[0036] The system execution module is specifically used to transmit a high level to the on-site solenoid valve during the well opening time to control the solenoid valve to be disconnected; and to input a low level to the on-site solenoid valve during the well closing time to control the solenoid valve to be closed, thereby controlling the plunger gas well switch through the solenoid valve switch.

[0037] Optionally, the field data includes: time series data and gas well basic data.

[0038] Optionally, the time series data includes any one or more of the following: oil pressure, casing pressure, back pressure, external transmission temperature, instantaneous gas production, cumulative gas production;

[0039] The basic data of the gas well include any one or more of the following: plunger well depth, tubing radius, casing radius, and retainer lower depth.

[0040] The gas well plunger gas lift switch well system adjustment method and control system provided by the present invention utilizes the production curves of multiple historical production cycles to sequentially determine the optimal switch well time and cycle gas production of each historical production cycle, and performs weighted summation on the optimal switch well time and cycle gas production of the determined multiple historical production cycles to obtain the optimal switch well time and cycle gas production, thereby realizing the automatic setting of the plunger gas lift well system and the automatic adjustment of the on-site switch, ensuring the rationality and timeliness of the system adjustment. Using the scheme of the present invention, the automatic adjustment and execution of the gas well plunger gas lift switch well system can not only reduce labor costs, but also effectively improve the gas field development effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a flow chart of a method for adjusting a gas well plunger gas lift switch well system provided by the present invention;

[0042] Figure 2 It is a flow chart for determining the optimal well opening and closing time and the gas production of a historical production cycle in the method of the present invention;

[0043] Figure 3 It is a structural schematic diagram of a gas well plunger gas lift switch well system control system provided by the present invention.

[0044] Figure 4 It is a production curve diagram of a certain historical production cycle of the gas well plunger gas lift switch well system adjustment method provided by the present invention. DETAILED DESCRIPTION

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0046] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the embodiments of the present invention are not therefore limited to the following embodiments.

[0047] In view of the problem that the existing conventional control method of plunger gas lift relies on manual parameter adjustment, requires professional knowledge and management experience of relevant technical personnel in gas production engineering, gas reservoir engineering, etc., cannot guarantee the rationality of system adjustment, and affects the effect of gas field development, the present invention provides a gas well plunger gas lift switch well system adjustment method and control system, which uses production curves of multiple historical production cycles to determine the optimal switch well time and cycle gas production of each historical production cycle in turn, and performs weighted summation on the optimal switch well time and cycle gas production of the determined multiple historical production cycles to obtain the optimal switch well time and cycle gas production, thereby realizing automatic setting of the plunger gas lift well system and automatic adjustment of the on-site switch, and ensuring the rationality and timeliness of the system adjustment.

[0048] like Figure 1 As shown, it is a flow chart of a method for adjusting the gas well plunger gas lift switch well system provided by the present invention, which includes the following steps:

[0049] Step 101, obtain the production curves of N historical production cycles, such as Figure 4 As shown, N is a positive integer greater than or equal to 1.

[0050] Step 102, determining the optimal well opening and closing time and the cycle gas production of each historical production cycle in turn according to the production curve of the historical cycle.

[0051] The well opening and closing time includes the well opening time and the well closing time. The periodic gas production refers to the gas production in the corresponding historical production cycle.

[0052] It should be noted that, for N historical production cycles, it is necessary to determine the optimal well opening and closing time and cycle gas production of each historical production cycle according to the production curve of the historical production cycle.

[0053] For example, based on the production curves of three historical production cycles, the optimal switching time and cycle gas production of each of the three historical production cycles are determined respectively. The determination of the optimal switching time and cycle gas production of each historical cycle will be described in detail later.

[0054] Step 103, weighted summing is performed on the optimal well-opening and closing times and periodic gas productions of the determined N historical production cycles to obtain the well-opening and closing times and periodic gas productions corresponding to the optimal well-opening and closing system.

[0055] Assume that the optimal opening and closing time of the well and the gas production of the period in the i-th historical production cycle are: T oni , T offi , Q i , then the weighted sum of the optimal well opening and closing time and cycle gas production of N historical production cycles can be calculated according to the following formula:

[0056]

[0057]

[0058]

[0059] Among them, T on is the well opening time corresponding to the optimal well opening and closing system, T off is the shut-in time corresponding to the optimal well opening and closing system, and Q is the periodic gas production corresponding to the optimal well opening and closing system.

[0060] When determining the optimal well switching time and cycle gas production for each historical production cycle in the above step 102, for each historical production cycle, first determine multiple well switching systems for the historical production cycle, then, for each well switching system, calculate the gas production per unit time under the well switching system, select the largest gas production per unit time, and use the corresponding well switching system as the optimal system.

[0061] The following is a detailed description of the optimal well opening and closing time and cycle gas production for each historical production cycle determined in the above step 102.

[0062] like Figure 2 FIG. 1 is a flow chart of determining the optimal well opening and closing time and the gas production of a historical production cycle in the method of the present invention, which includes the following steps:

[0063] Step 201, determine multiple well opening and closing systems in the i-th historical production cycle, i∈N.

[0064] For the convenience of description, the i-th historical production cycle will be referred to as the i-th production cycle below, and the two concepts are the same.

[0065] Specifically, the casing pressure parameters of the well switching in the historical production cycle can be set; and multiple well switching systems of the historical production cycle can be determined according to the casing pressure parameters of the well switching. The casing pressure parameters of the well switching include: minimum casing pressure of the well switching, maximum casing pressure of the well switching, and casing pressure increment.

[0066] For example, the casing pressure parameters of the above-mentioned switch wells can be set as follows: the minimum switch well casing pressure of the i-th production cycle is 0.8-1.0 times the switch well casing pressure of the i-th production cycle, the maximum switch well casing pressure is 1.0-1.2 times the switch well casing pressure of the i-th production cycle, and the casing pressure increment is 0.1-0.3Mpa. Of course, there can be other settings, which are not limited in this embodiment of the present invention.

[0067] In a non-limiting embodiment, the multiple well opening and closing systems in the historical production cycle may be determined in the following manner:

[0068] Taking the minimum well-opening casing pressure as a base point and the first step length as a unit, the casing pressure increment is continuously extended to the maximum well-opening casing pressure to obtain K well-opening casing pressures;

[0069] Taking the minimum shut-in casing pressure as a base point and the second step length as a unit, the casing pressure increment is continuously extended to the maximum shut-in casing pressure to obtain L shut-in casing pressures;

[0070] The first step length and the second step length are the casing pressure increments during the well opening and shut-in periods, respectively;

[0071] Determine M = K × L opening and closing well systems within the production cycle of the historical period.

[0072] It should be noted that the above K and L are positive integers greater than or equal to 1. In addition, the above first step length is not equal to the second step length.

[0073] Step 202, based on the production curve of the i-th historical production cycle, calculate the gas production per unit time in each well switching system.

[0074] The calculation process of gas production per unit time in each switching well system is as follows:

[0075] (1) For each well switching system, the well switching casing pressure point corresponding to the well switching system cycle is determined according to the production curve of the historical production cycle;

[0076] (2) Calculate the well opening time T according to the switch casing pressure point onij and shut-in time T offij ;

[0077] (3) According to the well opening time T onij and shut-in time T offij Determine the gas production per unit time within the well switching system.

[0078] For example, for the jth well-opening and closing system among the M well-opening and closing systems in the i-th production cycle, find the corresponding well-opening and closing casing pressure point on the i-th production cycle curve and determine the well opening time T onij and shut-in time T offij , the gas production during the opening time is integrated to obtain the gas production Q in the jth opening and closing well system ij ; Then, calculate the gas production per unit time Q in the jth switching well system cycle ij平均 , Q ij平均 =Q ij / (T onij +T offij ).

[0079] Step 203: Eliminate the well-opening and closing systems whose plunger gas lift operation parameters do not meet the boundary conditions from among the multiple well-opening and closing systems in the i-th historical production cycle.

[0080] That is to say, for the M well-opening and closing systems in the i-th historical production cycle, only the well-opening and closing systems whose plunger gas lift operation parameters meet the boundary conditions are retained.

[0081] The boundary conditions are one or more of the load factor, plunger rising speed, casing pressure rise range at the end of well opening, and whether the plunger reaches the wellhead. The load factor can be controlled between 0.38-0.45, load factor = (casing pressure - oil pressure) / (casing pressure - back pressure), plunger rising speed can be set to 228-305 m / min, and casing pressure rise range at the end of well opening can be set to 5%-10%.

[0082] It should be noted that the above step 203 may be performed first, and then step 202. Accordingly, when executing step 202, it is only necessary to calculate the gas production per unit time within the remaining switching well system.

[0083] Step 204, selecting the switching well time and gas production per unit time corresponding to the switching well system to which the maximum gas production per unit time belongs among the remaining switching well systems as the optimal switching well time and cycle gas production of the i-th historical production cycle.

[0084] For each historical production cycle, the remaining switch well system refers to the remaining switch well system after removing the switch well system whose plunger gas lift operation parameters do not meet the boundary conditions from the M switch well systems in the historical production cycle. The number of remaining switch well systems is less than or equal to M.

[0085] The gas well plunger gas lift switch well system adjustment method provided by the present invention uses the production curves of multiple historical production cycles to determine the optimal switch well time and cycle gas production of each historical production cycle in turn, and performs weighted summation on the optimal switch well time and cycle gas production of the determined multiple historical production cycles to obtain the optimal switch well time and cycle gas production, thereby realizing the automatic setting of the plunger gas lift well system and the automatic adjustment of the on-site switch, ensuring the rationality and timeliness of the system adjustment. Using the scheme of the present invention, the automatic adjustment and execution of the gas well plunger gas lift switch well system can not only reduce labor costs, but also effectively improve the gas field development effect.

[0086] Accordingly, based on the gas well plunger gas lift switch well system adjustment method provided by the present invention, the present invention also provides a gas well plunger gas lift switch well system control system, such as Figure 3 The figure shows a structural diagram of the system.

[0087] The gas well plunger gas lift switch well system control system 300 provided in this embodiment includes: a data acquisition module 301, a storage module 302, a system determination module 303, and a system execution module 304. Among them:

[0088] The data acquisition module 301 is used to collect field data;

[0089] The storage module 302 is used to store the field data collected by the data collection module 301;

[0090] The system determination module 303 is used to determine the optimal well switching system and predicted gas production by using the gas well plunger gas lift well switching system adjustment method in the previous embodiments, and send the optimal well switching system to the system execution module;

[0091] The policy execution module 304 is used to control the on-site solenoid valve according to the optimal well opening and closing policy, so that the on-site solenoid valve controls the plunger gas well switch to close or open.

[0092] The optimal well opening and closing system includes: opening time and closing time. Accordingly, the system execution module 304 is specifically used to send a high level to the field solenoid valve during the opening time to control the solenoid valve to be disconnected; and to input a low level to the field solenoid valve during the closing time to control the solenoid valve to be closed, thereby controlling the plunger gas well opening and closing through the solenoid valve opening and closing.

[0093] The field data may include, but are not limited to, time series data and gas well basic data. The time series data may include any one or more of the following: oil pressure, casing pressure, back pressure, external transmission temperature, instantaneous gas production, cumulative gas production, etc. The gas well basic data may include any one or more of the following: plunger well depth, tubing radius, casing radius, retainer depth, etc.

[0094] By utilizing the gas well plunger gas lift switch well system control system provided by the present invention, automatic setting of the plunger gas lift well system and automatic adjustment of the on-site switch can be achieved, thereby ensuring the rationality and timeliness of the system adjustment and improving the intelligence of the system.

[0095] Regarding the various modules / units included in the various systems and products described in the above embodiments, they can be software modules / units, or hardware modules / units, or they can be partially software modules / units and partially hardware modules / units. For example, for various devices and products applied to or integrated in a chip, the various modules / units included therein can all be implemented in the form of hardware such as circuits, or at least some of the modules / units can be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in a chip module, the various modules / units included therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component of the chip module (such as a chip, circuit module, etc.) or in different components, or at least some of the modules / units can be implemented in the form of software programs. The software programs run on a processor integrated inside the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits. It is implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in hardware such as circuits; for various devices and products applied to or integrated in the terminal equipment, the various modules / units contained therein can be implemented in hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal equipment, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal equipment, and the remaining (if any) modules / units can be implemented in hardware such as circuits.

[0096] The present application also discloses a storage medium, which is a computer-readable storage medium and stores a computer program, which can be executed when the computer program is run. Figure 1 The steps of the method shown in . The storage medium may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. The storage medium may also include a non-volatile memory (non-volatile) or a non-transitory memory, etc.

[0097] The "plurality" appearing in the embodiments of the present application refers to two or more.

[0098] The first, second, etc. descriptions appearing in the embodiments of the present application are only used for illustration and distinction of the description objects. There is no order, nor do they indicate any special limitation on the number of devices in the embodiments of the present application, and cannot constitute any limitation on the embodiments of the present application.

[0099] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or apparatus.

[0100] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. Moreover, the system embodiments described above are merely schematic, in which the modules and units described as separate components may or may not be physically separated, that is, they may be located on one network unit, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without creative work.

[0101] The embodiments of the present invention are described in detail above. The present invention is described in detail using specific implementation methods herein. The description of the above embodiments is only used to help understand the method and system of the present invention. It is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should belong to the scope of protection of the present invention, and the content of this specification should not be understood as limiting the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for adjusting the gas well plunger gas lift opening and closing well system, characterized in that: The method comprises: Obtain production curves of N historical production cycles, where N is a positive integer greater than or equal to 1; Determine the optimal well opening and closing time and the optimal cycle gas production of each historical production cycle in turn according to the production curve of the historical cycle; The optimal well-opening and closing time and the optimal cycle gas production of the determined N historical production cycles are weightedly summed to obtain the well-opening and closing time and cycle gas production corresponding to the optimal well-opening and closing system.

2. The method for adjusting the gas well plunger gas lift switch well system according to claim 1, characterized in that: The step of sequentially determining the optimal well opening and closing time and the gas production of each historical production cycle according to the production curve of the historical cycle comprises: For each historical production cycle, determining a plurality of well opening and closing systems within the historical production cycle; According to the production curve of the historical production cycle, the gas production per unit time in each switching well system is calculated respectively; Eliminate the switching well systems whose plunger gas lift operation parameters do not meet the boundary conditions from among the multiple switching well systems in the historical production cycle; The switching well time and cycle gas production corresponding to the switching well system to which the maximum gas production per unit time belongs among the remaining switching well systems are selected as the optimal switching well time and cycle gas production of the historical production cycle.

3. The method for adjusting the gas well plunger gas lift switch well system according to claim 2, characterized in that: Determining the multiple well opening and closing systems within the historical production cycle includes: Setting the casing pressure parameters of the switch wells in the historical production cycle; According to the casing pressure parameters of the switching wells, multiple switching well systems of the historical production cycle are determined.

4. The method for adjusting the gas well plunger gas lift switch well system according to claim 3, characterized in that: The switch well casing pressure parameters include: minimum switch well casing pressure, maximum switch well casing pressure and casing pressure increment; Determining the multiple switching well systems within the historical production cycle according to the switching well casing pressure parameter includes: Taking the minimum well-opening casing pressure as a base point and the first step length as a unit, the casing pressure increment is continuously extended to the maximum well-opening casing pressure to obtain K well-opening casing pressures; Taking the minimum shut-in casing pressure as a base point and the second step length as a unit, the casing pressure increment is continuously extended to the maximum shut-in casing pressure to obtain L shut-in casing pressures; The first step length and the second step length are the casing pressure increments during the well opening and shut-in periods, respectively; Determine M=K×L opening and closing well systems within the historical production cycle, where K and L are positive integers greater than or equal to 1.

5. The method for adjusting the gas well plunger gas lift switch well system according to claim 2, characterized in that: The calculation of the gas production per unit time of each well switching system according to the production curve of the historical production cycle includes: For each well switching system, according to the production curve of the historical production cycle, the well switching casing pressure point corresponding to the well switching system cycle is determined; Calculate the well opening time T according to the switch casing pressure point onij and shut-in time T offij ; According to the well opening time T onij and shut-in time T offij Determine the gas production per unit time within the well switching system.

6. The method for adjusting the gas well plunger gas lift switch well system according to claim 2, characterized in that: The minimum switching well casing pressure of the i-th production cycle is 0.8-1.0 times the switching well casing pressure of the i-th production cycle, and the maximum switching well casing pressure is 1.0-1.2 times the switching well casing pressure of the i-th production cycle. The casing pressure increment is 0.1-0.3Mpa, i∈N.

7. The method for adjusting the gas well plunger gas lift switch well system according to claim 2, characterized in that: The boundary conditions are one or more of the load coefficient, the plunger rising speed, the casing pressure micro-rise range at the end of well opening, and whether the plunger reaches the wellhead.

8. A gas well plunger gas lift switch well system control system, characterized in that: The system includes: a data collection module, a storage module, a system determination module, and a system execution module; The data acquisition module is used to collect on-site data; The storage module is used to store the field data collected by the data collection module; The system determination module is used to determine the optimal switching well system and predicted gas production by using the gas well plunger gas lift switching well system adjustment method according to any one of claims 1 to 7, and send the optimal switching well system to the system execution module; The system execution module is used to control the on-site solenoid valve according to the optimal well opening and closing system, so that the on-site solenoid valve controls the plunger gas well switch to close or open.

9. The gas well plunger gas lift switch well system control system according to claim 8, characterized in that: The optimal well opening and closing system includes: well opening time and well closing time; The system execution module is specifically used to transmit a high level to the on-site solenoid valve during the well opening time to control the solenoid valve to be disconnected; and to input a low level to the on-site solenoid valve during the well closing time to control the solenoid valve to be closed, thereby controlling the plunger gas well switch through the solenoid valve switch.

10. The gas well plunger gas lift switch well system control system according to claim 8 or 9, characterized in that: The field data includes: time series data and gas well basic data.

11. The gas well plunger gas lift switch well system control system according to claim 10, characterized in that: The time series data includes any one or more of the following: oil pressure, casing pressure, back pressure, external transmission temperature, instantaneous gas production, and cumulative gas production; The basic data of the gas well include any one or more of the following: plunger well depth, tubing radius, casing radius, and retainer lower depth.

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