Linkage pressure adjusting method and device for adjacent water curtain holes, equipment and storage medium

Abstract

The invention discloses a linkage pressure adjusting method and device for adjacent water curtain holes, equipment and a storage medium, and relates to the technical field of fluid pressure adjustment. The linkage pressure adjusting method for the adjacent water curtain holes comprises the steps that hole pressure change data, left and right adjacent hole pressure change data, single-hole experiment basic data and geological adjusting parameters of all the water curtain holes are collected, a sealing cooperation weight coefficient is calculated according to the data, and a dynamic pressure target interval is determined by combining the geological adjusting parameters; inputting the pressure change data of the hole and the adjacent hole and the geological regulation parameters into a big data sample library for matching to generate linkage regulation parameters; and finally, based on the dynamic pressure target interval and the linkage adjustment parameters, a grading adjustment instruction is sent to the corresponding electric adjustment valve, and linkage pressure adjustment is completed. Cooperative pressure adjustment can be realized based on the hydraulic connectivity of the adjacent water curtain holes so as to maintain the oil-water pressure dynamic balance of the underground water-sealed cave depot.

Description

Technical Field

[0001] This application relates to the field of fluid pressure regulation technology, and in particular to a method, apparatus, equipment and storage medium for linkage pressure regulation of adjacent water curtain holes. Background Technology

[0002] A water-sealed underground cavern is an underground oil storage structure excavated in rock strata below a stable groundwater level. Its sealing performance relies on the hydraulic barrier formed by fissure water in the surrounding rock. To ensure storage safety, a "dynamic balance of oil and water pressure" must be maintained, meaning that the fissure water pressure at any location around the cavern is always higher than the pressure of the stored medium (such as crude oil or liquefied petroleum gas), thus effectively preventing oil and gas leakage. The water curtain system, as a key artificial water replenishment facility, continuously injects water through water curtain tunnels and water curtain orifices above the cavern to maintain the rock mass saturation state and create a stable hydraulic sealing environment.

[0003] Currently, pressure regulation in water curtain systems generally adopts a single-hole independent control method, meaning each water curtain hole is equipped with an independent valve or automatic water injection device, and water injection is regulated based on feedback from local pressure sensors. This approach is usually based on preset pressure thresholds or fixed water injection strategies, without considering the mutual influence between water curtain holes, and also lacks overall management of the hydraulic state of the entire water seal area.

[0004] However, due to the natural hydraulic connectivity of rock mass fractures, there is a significant hydraulic pressure coupling effect between adjacent water curtain boreholes. Existing single-bore independent control methods neglect this characteristic, easily leading to excessive pressure differences between adjacent boreholes, forming localized low-pressure zones (potentially causing oil and gas leaks) or high-pressure zones (potentially inducing rock mass disturbances). Furthermore, the system's response to dynamic conditions such as changes in oil storage pressure and fluctuations in groundwater level is lag-dependent, making it difficult to maintain real-time dynamic oil-water pressure balance. Therefore, how to achieve coordinated pressure regulation based on the hydraulic connectivity of adjacent water curtain boreholes to maintain the dynamic oil-water pressure balance in underground water-sealed caverns has become an urgent problem to be solved.

[0005] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Summary of the Invention

[0006] The purpose of this application is to provide a method, device, equipment and storage medium for coordinated pressure regulation of adjacent water curtain holes, aiming to solve the technical problem of how to achieve coordinated pressure regulation based on the hydraulic connectivity of adjacent water curtain holes to maintain the dynamic balance of oil and water pressure in underground water-sealed caverns.

[0007] To achieve the above objectives, this application proposes a method for coordinated pressure regulation of adjacent water curtain holes, the method comprising: Collect pressure change data for each water curtain hole, pressure change data for adjacent holes, basic data of single-hole experiments, and geological adjustment parameters; Based on the pressure change data of this borehole, the pressure change data of the left and right adjacent boreholes, the basic data of the single borehole experiment, and the geological adjustment parameters, calculate the sealing synergy weighting coefficient of the water curtain borehole; The dynamic pressure target range of the water curtain orifice is determined based on the sealing coordination weight coefficient and the geological regulation parameters. The pressure change data of this borehole, the pressure change data of the left and right adjacent boreholes, and the geological adjustment parameters are input into a big data sample database for parameter matching to obtain the linkage adjustment parameters. Based on the dynamic pressure target range and the linkage adjustment parameters, a graded adjustment command is sent to the electric regulating valve corresponding to the water curtain orifice to complete the linkage pressure adjustment.

[0008] In one embodiment, the step of calculating the sealing synergy weighting coefficient of the water curtain hole based on the pressure change data of the current hole, the pressure change data of the left and right adjacent holes, the basic data of the single-hole experiment, and the geological adjustment parameters includes: Based on the fracture connectivity rate in the geological adjustment parameters, a weighting factor for the influence of adjacent boreholes is set. Based on the single-hole experimental data, the adjacent hole influence weighting factor, the pressure change data of this hole, and the pressure change data of the left and right adjacent holes, the initial collaborative weight of the water curtain hole is calculated. The pressure change of the adjacent holes is calculated based on the pressure values ​​of the left and right adjacent holes before the water curtain hole is adjusted and the stable pressure values ​​of the left and right adjacent holes within a preset time after the adjustment. Multiply the pressure change of the adjacent hole by the influence weighting factor of the adjacent hole to obtain the pressure compensation contribution value of the water curtain hole to the left and right adjacent holes. The initial collaborative weight is corrected based on the pressure compensation contribution value, and then normalized to obtain the sealing collaborative weight coefficient.

[0009] In one embodiment, the step of calculating the initial collaborative weight of the water curtain hole based on the single-hole experimental data, the adjacent hole influence weighting factor, the pressure change data of this hole, and the pressure change data of the left and right adjacent holes includes: Extract the pressure conduction efficiency and steady-state response time from the basic data of the single-hole experiment; Based on the pressure change data of this hole and the pressure change data of the left and right adjacent holes, calculate the pressure change rate of this hole and the pressure change rate of the left and right adjacent holes; Based on the pressure change rate of the main hole and the pressure change rates of the left and right adjacent holes, calculate the pressure change synchronization rate between the water curtain hole and the left and right adjacent holes; The stable response efficiency is calculated based on the preset baseline response time and the stable response time. The initial collaborative weight of the water curtain hole is obtained by multiplying the pressure transmission efficiency, the pressure change synchronization rate, the adjacent hole influence weight factor, and the stable response efficiency.

[0010] In one embodiment, the step of inputting the pressure change data of this borehole, the pressure change data of the left and right adjacent boreholes, and the geological adjustment parameters into a big data sample database for parameter matching to obtain the linkage adjustment parameters includes: Based on the pressure change data of this hole and the pressure change data of the left and right adjacent holes, calculate the pressure change rate of this hole and the pressure change rate of the left and right adjacent holes; The pressure change rate of this borehole, the pressure change rates of the left and right adjacent boreholes, and the geological adjustment parameters are input into a big data sample library. The random forest algorithm is used to perform sample matching to obtain the matching degree ranking result. The big data sample library is constructed based on historical single-hole experimental data, historical pressure linkage data of this borehole and adjacent boreholes, and historical geological adjustment parameters. Based on the matching degree ranking results, extract the sample set with matching degree greater than the preset matching degree threshold, and analyze the adjustment speed and pressure compensation amount in the sample set; The median value of the adjustment speed is taken as the target adjustment speed, and the average value of the pressure compensation amount is taken as the target pressure compensation amount; The linkage adjustment parameters are generated based on the target pressure compensation amount and the target adjustment speed.

[0011] In one embodiment, the step of analyzing the adjustment rate and pressure compensation amount in the sample set includes: The pressure fluctuation amplitude of adjacent holes for each sample in the sample set is statistically analyzed, and samples whose pressure fluctuation amplitude of adjacent holes exceeds a preset fluctuation amplitude threshold are removed to obtain the remaining sample set; Time series data of the pressure regulation process were extracted from the remaining sample set; Calculate the adjustment time required for the pressure in the remaining sample set to reach the target value from the initial value; Based on the adjustment time and pressure change amplitude, calculate the adjustment rate of each sample in the remaining sample set; The target pressure difference is calculated based on the target reference pressure value of the dynamic pressure target range and the pressure value of the water curtain orifice. The adjustment time is calculated based on the target pressure difference and the adjustment speed. The pressure compensation amount of each sample in the remaining sample set is calculated based on the adjustment time, the target pressure difference, and the preset pressure compensation coefficient, wherein the preset pressure compensation coefficient is determined based on the rock mass elastic modulus in the geological adjustment parameters.

[0012] In one embodiment, the step of determining the dynamic pressure target range of the water curtain orifice based on the sealing coordination weighting coefficient and the geological regulation parameters includes: Extract the maximum bearing capacity of the rock mass, fracture connectivity, and design pressure of the oil storage cavern from the geological regulation parameters; Multiply the sealing coordination weighting coefficient by the design pressure of the oil storage chamber to obtain the initial reference pressure value; The pressure correction coefficient is set according to the fracture connectivity rate; Multiply the initial reference pressure value by the pressure correction factor to obtain the target reference pressure value; The initial pressure range is determined based on the preset safety margin range and the target reference pressure value; The lower limit of the initial pressure range is used as the lower limit of the target range, and the smaller value between the upper limit of the initial pressure range and the maximum bearing capacity of the rock mass is used as the upper limit of the target range, thus obtaining the dynamic pressure target range.

[0013] In one embodiment, the step of sending a graded adjustment command to the electric regulating valve corresponding to the water curtain orifice based on the dynamic pressure target range and the linkage adjustment parameters to complete the linkage pressure adjustment includes: Set the valve action acceleration and opening conversion coefficient for each preset adjustment level; Based on the preset adjustment level and the target adjustment speed in the linkage adjustment parameters, determine the target adjustment level, target motion acceleration, and target opening conversion coefficient; Multiply the target pressure compensation amount in the linkage adjustment parameters by the target opening conversion coefficient to obtain the valve opening change amount; Calculate the time gradient of the valve opening change based on the valve opening change and the target motion acceleration; The valve opening change and the opening change time gradient are verified based on the dynamic pressure target range to obtain the verification result; When the verification result is unsuccessful, return to the step of inputting the pressure change data of this borehole, the pressure change data of the left and right adjacent boreholes and the geological adjustment parameters into the big data sample database for parameter matching to obtain the linkage adjustment parameters; When the verification result is passed, a graded adjustment command is generated based on the target adjustment level, the valve opening change, and the adjacent hole interlock identifier; Send the graded adjustment command to the electric regulating valve corresponding to the water curtain hole to complete the linkage pressure regulation.

[0014] Furthermore, to achieve the above objectives, this application also proposes a linkage pressure regulating device for adjacent water curtain holes, the device comprising: The data acquisition module is used to collect pressure change data of each water curtain hole, pressure change data of adjacent holes, basic experimental data of single holes, and geological adjustment parameters. The collaborative weight calculation module is used to calculate the sealing collaborative weight coefficient of the water curtain hole based on the pressure change data of this hole, the pressure change data of the left and right adjacent holes, the basic experimental data of the single hole, and the geological adjustment parameters. The target range determination module is used to determine the dynamic pressure target range of the water curtain orifice based on the sealing coordination weight coefficient and the geological adjustment parameters. The linkage parameter generation module is used to input the pressure change data of this borehole, the pressure change data of the left and right adjacent boreholes and the geological adjustment parameters into a big data sample library for parameter matching to obtain the linkage adjustment parameters. The adjustment command sending module is used to send graded adjustment commands to the electric regulating valve corresponding to the water curtain hole based on the dynamic pressure target range and the linkage adjustment parameters, so as to complete the linkage pressure adjustment.

[0015] In addition, to achieve the above objectives, this application also proposes a linkage pressure regulation device for adjacent water curtain holes, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the linkage pressure regulation method for adjacent water curtain holes as described above.

[0016] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the linkage pressure adjustment method for adjacent water curtain holes as described above.

[0017] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the linkage pressure adjustment method for adjacent water curtain holes as described above.

[0018] One or more technical solutions proposed in this application have at least the following technical effects: First, pressure change data for each water curtain borehole, pressure change data for adjacent boreholes, basic data from single-bore experiments, and geological regulation parameters are collected to comprehensively obtain the hydraulic state and geological constraints of the current borehole and its surrounding area, providing multi-dimensional basis for subsequent collaborative decision-making. Next, based on the above data, a sealing collaboration weight coefficient for each water curtain borehole is calculated to quantify its adjustment priority in the overall sealing system, making the control strategy more aligned with the actual hydraulic coupling relationship. Subsequently, combining this weight coefficient with geological regulation parameters, the safe pressure target range for each water curtain borehole is dynamically determined to ensure that the pressure remains within a range that ensures effective sealing and structural safety. Then, the pressure change data for this borehole and adjacent boreholes, along with the geological regulation parameters, are input into a large data sample database for parameter matching. Historical effective adjustment cases are used to generate linkage regulation parameters adapted to the current operating conditions, improving the accuracy and adaptability of the regulation. Finally, based on the dynamic pressure target range and linkage regulation parameters, graded adjustment commands are sent to the corresponding electric regulating valves to achieve stable and orderly pressure adjustment. This application can achieve collaborative pressure regulation based on the hydraulic connectivity of adjacent water curtain boreholes to maintain the dynamic balance of oil and water pressure in underground water-sealed caverns. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic flowchart of an embodiment of the linkage pressure regulation method for adjacent water curtain holes in this application; Figure 2 A schematic flowchart of the second embodiment of the linkage pressure regulation method for adjacent water curtain holes in this application; Figure 3 This is a schematic diagram of the module structure of the linkage pressure regulating device for adjacent water curtain holes in an embodiment of this application; Figure 4 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the linkage pressure adjustment method of adjacent water curtain holes in the embodiments of this application.

[0022] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0024] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0025] It should be noted that the executing entity of this application embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or water curtain pressure regulation system capable of realizing the above functions. The following description uses a water curtain pressure regulation system as an example to illustrate this embodiment and the subsequent embodiments.

[0026] Based on this, embodiments of this application provide a method for adjusting the linkage pressure of adjacent water curtain holes, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the linkage pressure adjustment method for adjacent water curtain holes in this application.

[0027] In this embodiment, the method for adjusting the linkage pressure of adjacent water curtain holes includes steps S10 to S50: Step S10: Collect pressure change data of each water curtain hole, pressure change data of adjacent holes, basic data of single-hole experiments, and geological adjustment parameters.

[0028] It should be noted that the pressure change data for this particular orifice refers to the dynamic data of the injection pressure changing over time as monitored in real time during the operation of the current water curtain orifice, reflecting the fluctuation trend and amplitude of the orifice's own water pressure. The pressure change data for adjacent orifices refers to the dynamic data of the pressure changing over time collected from two water curtain orifices spatially adjacent to the current orifice (usually the left and right adjacent orifices in the same water curtain tunnel), used to characterize the impact of adjacent orifices on the hydraulic environment of that orifice. The single-orifice experimental baseline data refers to the performance benchmark data obtained from independent water injection tests conducted on a single water curtain orifice before the system's formal operation, including the orifice's pressure response characteristics and stable water injection capacity under different water injection conditions, serving as a reference for subsequent coordinated adjustments. Geological regulation parameters refer to a set of parameters pre-set based on the engineering geological characteristics of the rock mass in the area where the underground water-sealed cavern is located and the oil storage safety requirements, used to correct the linkage regulation model. Specifically, these parameters include the maximum bearing capacity of the rock mass (e.g., 1.6 MPa), the fracture connectivity rate (e.g., 75%), and the design pressure of the oil storage cavern (e.g., 0.9 MPa). These parameters are used to reflect the hydraulic conduction capacity, structural bearing capacity, and sealing safety boundary under different geological conditions, thereby improving the adaptability and reliability of the pressure regulation strategy.

[0029] Understandably, firstly, the water curtain pressure regulation system collects real-time pressure change data of each water curtain hole through pressure sensors deployed on each hole (e.g., recording the current water injection pressure value of the hole every 5 seconds). Simultaneously, it reads the pressure sensor data of the two adjacent water curtain holes on the left and right sides located in the same water curtain tunnel to obtain the pressure change data of the adjacent holes. Secondly, the system retrieves the basic performance data recorded by the single-hole water injection test completed during the engineering construction phase of the water curtain hole from the database (e.g., steady-state pressure response curves under different water injection flow rates), and loads the geological regulation parameters pre-configured according to the geological characteristics of the rock mass area where the hole is located. This allows for a comprehensive consideration of the hydraulic coupling effect between holes and geological differences, providing a precise and dynamic data foundation for achieving coordinated pressure regulation.

[0030] Step S20: Calculate the sealing synergy weighting coefficient of the water curtain hole based on the pressure change data of this hole, the pressure change data of the left and right adjacent holes, the basic experimental data of the single hole, and the geological adjustment parameters.

[0031] It should be noted that the sealing coordination weight coefficient refers to a comprehensive adjustment weight value used to quantify the contribution of a single water curtain hole to the overall water seal effect, considering its own pressure changes, the pressure influence of adjacent water curtain holes, the single-hole water injection performance benchmark, and the geological constraints of the rock mass. This coefficient reflects the control priority or adjustment intensity that the water curtain hole should be given in the linkage adjustment, aiming to achieve regional water pressure balance and sealing stability through multi-hole coordination.

[0032] Understandably, the water curtain pressure regulation system first assesses the hydraulic coupling strength between boreholes based on the difference in pressure change trends between the borehole and its left and right neighboring boreholes. Secondly, it determines the regulation sensitivity by combining the water injection response characteristics of the borehole in the basic data of single-hole experiments. Then, it constrains and corrects the above assessment results based on the maximum bearing capacity of the rock mass, the fracture connectivity rate, and the design pressure of the oil storage cavern in the geological regulation parameters, and obtains the sealing coordination weight coefficient of the water curtain borehole under the current working conditions.

[0033] Step S30: Determine the dynamic pressure target range of the water curtain orifice based on the sealing coordination weight coefficient and the geological adjustment parameters.

[0034] It should be noted that the dynamic pressure target range refers to a pressure control range calculated in real time for the water curtain hole based on the sealing coordination weight coefficient of the water curtain hole and the geological adjustment parameters of its area. Its lower limit ensures that the fracture water pressure is always higher than the oil storage cavern pressure to maintain the sealing performance, and its upper limit does not exceed the maximum pressure bearing value of the rock mass to avoid rock mass disturbance. Thus, under the dual constraints of safety and sealing, it is a reasonable water injection pressure range that dynamically adapts to the current working conditions.

[0035] As an example, the step of determining the dynamic pressure target range of the water curtain orifice based on the sealing coordination weighting coefficient and the geological regulation parameters includes: extracting the maximum bearing capacity of the rock mass, the fracture connectivity rate, and the design pressure of the oil storage cavern from the geological regulation parameters; multiplying the sealing coordination weighting coefficient by the design pressure of the oil storage cavern to obtain an initial reference pressure value; setting a pressure correction coefficient based on the fracture connectivity rate; multiplying the initial reference pressure value by the pressure correction coefficient to obtain a target reference pressure value; determining an initial pressure range based on a preset safety margin range and the target reference pressure value; using the lower limit of the initial pressure range as the lower limit of the target range, and using the smaller of the upper limit of the initial pressure range and the maximum bearing capacity of the rock mass as the upper limit of the target range, to obtain the dynamic pressure target range.

[0036] The maximum bearing capacity of the rock mass refers to the highest water pressure that the rock mass can withstand without structural damage or significant disturbance. It is used to limit the upper limit of the water injection pressure of the water curtain orifice, ensuring that the water injection process does not induce rock mass instability. The fracture connectivity rate refers to the degree of hydraulic connection between adjacent water curtain orifices through rock mass fractures, expressed as a percentage. It reflects the strength of the mutual influence of pressure between orifices and is an important basis for determining whether enhanced coordinated regulation is needed. The design pressure of the oil storage cavern refers to the maximum expected pressure of the medium (such as crude oil or liquefied petroleum gas) stored in the underground water-sealed cavern under normal operating conditions, serving as a benchmark pressure for maintaining the dynamic balance of oil and water pressure. The initial benchmark pressure value is the pressure value obtained by multiplying the sealing coordination weight coefficient of the water curtain orifice by the design pressure of the oil storage cavern. It is used to characterize the basic sealing pressure level that the orifice should maintain under the current coordination weight.

[0037] The pressure correction factor is a multiplicative factor used to adjust the initial reference pressure value based on the fracture connectivity rate. In this embodiment, the pressure correction factor is 1.1 when the fracture connectivity rate is >70%, 1.0 when the fracture connectivity rate is 50%–70%, and 0.9 when the fracture connectivity rate is <50%. This is used to enhance or weaken the target pressure to adapt to the sealing requirements under different hydraulic connectivity conditions. The target reference pressure value is the corrected reference pressure obtained by multiplying the initial reference pressure value by the pressure correction factor, and serves as the central reference value for calculating the dynamic pressure target range. The preset safety margin range refers to the allowable deviation ratio (e.g., ±10%) around the target reference pressure value, used to construct a pressure control range with a certain fault tolerance, balancing sealing performance and operational stability. The initial pressure range refers to the preliminary pressure control range formed by expanding upwards and downwards from the target reference pressure value within the preset safety margin range. The lower limit of the target range refers to the lower limit value of the initial pressure range, serving as the minimum limit that the water injection pressure of the water curtain orifice must not fall below, ensuring that the fracture water pressure is always higher than the oil storage pressure, maintaining effective sealing. The upper limit of the target range refers to the smaller of the upper limit of the initial pressure range and the maximum pressure bearing capacity of the rock mass. It serves as the highest limit that the water injection pressure of the water curtain hole must not exceed, in order to prevent overpressure from causing damage to the rock mass.

[0038] Step S40: Input the pressure change data of this borehole, the pressure change data of the left and right adjacent boreholes, and the geological adjustment parameters into the big data sample database for parameter matching to obtain the linkage adjustment parameters.

[0039] It should be noted that the big data sample library refers to a database that has been pre-built and stores a large amount of historical operating data and corresponding adjustment strategies. This includes pressure change data for the current wellbore under different operating conditions, pressure change data for adjacent wells, and the mapping relationship between geological adjustment parameters and actual effective adjustment actions. This data is used to achieve parameter matching and intelligent decision-making through a data-driven approach. The linkage adjustment parameters refer to a set of control commands generated by matching data from the big data sample library based on the real-time pressure status and geological conditions of the current water curtain well and its adjacent wells. These commands coordinate the coordinated actions of multiple water curtain wells, including target injection pressure, adjustment speed, valve opening changes, and adjustment response timing, and are used to drive the electric regulating valve to perform linkage pressure adjustment.

[0040] As an example, the step of inputting the pressure change data of the borehole, the pressure change data of the left and right adjacent boreholes, and the geological regulation parameters into a big data sample library for parameter matching to obtain the linkage regulation parameters includes: calculating the pressure change rate of the borehole and the pressure change rate of the left and right adjacent boreholes based on the pressure change data of the borehole and the pressure change data of the left and right adjacent boreholes; inputting the pressure change rate of the borehole, the pressure change rate of the left and right adjacent boreholes, and the geological regulation parameters into the big data sample library, and using a random forest algorithm to perform sample matching to obtain a matching degree ranking result, wherein the big data sample library is constructed based on historical single-hole experimental data, historical borehole-adjacent borehole pressure linkage data, and historical geological regulation parameters; extracting a sample set with a matching degree greater than a preset matching degree threshold based on the matching degree ranking result, and analyzing the regulation speed and pressure compensation amount in the sample set; taking the median value of the regulation speed as the target regulation speed, and the average value of the pressure compensation amount as the target pressure compensation amount; and generating linkage regulation parameters based on the target pressure compensation amount and the target regulation speed.

[0041] The pressure change rate of this well refers to the rate of pressure change of the current water curtain well per unit time. It is obtained by performing time differentiation or difference calculations on the pressure change data of this well, and is used to characterize the dynamic trend of pressure change in this well. The pressure change rates of the left and right adjacent wells refer to the rate of pressure change of the left and right adjacent water curtain wells per unit time, respectively calculated from the pressure change data of their left and right adjacent wells, and are used to reflect the dynamic influence of adjacent wells on the hydraulic environment of the current well. The matching degree ranking result refers to the ranking list formed by using the random forest algorithm to score the similarity of all historical samples in the database after receiving the current operating condition characteristics (including the pressure change rate of this well, the pressure change rates of the left and right adjacent wells, and geological regulation parameters), and arranging them from high to low scores. This is used to identify the historical regulation cases that are closest to the current state. Historical single-well experimental data refers to the pressure response, flow regulation, and steady state data recorded by conducting water injection tests on each water curtain well before the system was put into operation. This data serves as the basic performance basis for constructing the big data sample database. Historical pressure linkage data between this well and adjacent wells refers to the time-series data of pressure changes and corresponding adjustment actions of multiple adjacent water curtain wells under coordinated water injection conditions recorded by the system during past operations, reflecting the actual hydraulic coupling and linkage control effect between wells. Historical geological regulation parameters refer to the set of geological regulation parameters that have been actually adopted or verified to be effective in different time periods or regions, including maximum rock mass bearing capacity, fracture connectivity, oil reservoir design pressure, rock mass elastic modulus, etc., used to enhance the adaptability of the sample library to geological conditions. The preset matching degree threshold refers to the minimum acceptable similarity standard set during parameter matching (e.g., matching degree ≥ 0.85). Only historical samples with a matching degree higher than this threshold are considered valid references. The sample set refers to the set of all historical samples with a matching degree greater than the preset matching degree threshold selected from the matching degree ranking results, used for subsequent extraction of key parameters of the regulation strategy. Regulation speed refers to the rate of change of opening, pressure, or flow rate per unit time when the electric regulating valve performs pressure regulation (e.g., valve position change 0.5% / s), reflecting the speed of the regulation action. Pressure compensation refers to the additional injection pressure increment (e.g., +0.03 MPa) required to offset predicted pressure deviations or maintain the target pressure range. It is used to correct pressure trends in advance and improve regulation accuracy.

[0042] First, the water curtain pressure regulation system performs time-series differencing on the collected pressure change data of the borehole, calculating the pressure difference between two adjacent sampling times and dividing it by the time interval to obtain the pressure change rate of the borehole (e.g., if the current pressure is 0.92 MPa, the previous pressure was 0.90 MPa, and the time interval is 10 seconds, then the pressure change rate of the borehole is 0.002 MPa / s). The same method is used to process the pressure change data of the left and right adjacent boreholes to obtain the pressure change rates of the left and right adjacent boreholes. Second, the system uses the calculated pressure change rate of the borehole, the pressure change rates of the left and right adjacent boreholes, and the current geological regulation parameters as input feature vectors. These are fed into a large data sample library constructed based on historical single-bore experimental data, historical borehole-adjacent borehole pressure linkage data, and historical geological regulation parameters. A pre-trained random forest algorithm model is then invoked. This model uses multiple decision trees to compare the input features with the features of historical samples in the library and scores the similarity. Finally, it outputs a ranking of all historical samples sorted by matching degree from high to low. The system first sorts the results; then, it selects all historical samples with a matching degree greater than a preset matching degree threshold from the sorted results to form a valid sample set, and extracts the adjustment speed and pressure compensation amount corresponding to each sample from it; next, the system takes the median value of all adjustment speeds in the sample set as the target adjustment speed, and takes the arithmetic mean of all pressure compensation amounts as the target pressure compensation amount; finally, it generates complete linkage adjustment parameters based on the target adjustment speed and target pressure compensation amount, and sends them to the electric regulating valve actuator of the corresponding water curtain orifice, so as to realize precise and rapid pressure regulation based on multi-orifice collaboration and historical experience driving, thereby improving the overall response capability and sealing stability of the water seal system.

[0043] As an example, the steps of analyzing the adjustment speed and pressure compensation amount in the sample set include: statistically analyzing the pressure fluctuation amplitude of adjacent wells for each sample in the sample set, and removing samples whose adjacent well pressure fluctuation amplitude exceeds a preset fluctuation amplitude threshold to obtain a remaining sample set; extracting time series data of the pressure adjustment process from the remaining sample set; calculating the adjustment time for the pressure in the remaining sample set to reach the target value from the initial value; calculating the adjustment speed of each sample in the remaining sample set based on the adjustment time and pressure change amplitude; calculating the target pressure difference based on the target reference pressure value of the dynamic pressure target range and the pressure value of the water curtain well; calculating the adjustment duration based on the target pressure difference and the adjustment speed; and calculating the pressure compensation amount of each sample in the remaining sample set based on the adjustment duration, the target pressure difference, and a preset pressure compensation coefficient, wherein the preset pressure compensation coefficient is determined based on the rock mass elastic modulus in the geological adjustment parameters.

[0044] The pressure fluctuation amplitude of adjacent orifices refers to the maximum range of pressure value deviation from the steady-state value of adjacent water curtain orifices during a single pressure regulation process in historical samples (e.g., if the pressure of an adjacent orifice fluctuates from 0.88 MPa to 0.94 MPa, the fluctuation amplitude is 0.06 MPa), used to measure the stability of adjacent orifice operation. The preset fluctuation amplitude threshold is a pre-set upper limit standard for judging whether the pressure of adjacent orifices fluctuates abnormally (e.g., 0.05 MPa). Samples exceeding this threshold are considered to be significantly affected by external disturbances and are not suitable as a reference for regulation strategies. The remaining sample set refers to the set of relatively stable samples retained after removing samples from the original sample set whose pressure fluctuation amplitude exceeds the preset fluctuation amplitude threshold, used for reliable extraction of subsequent regulation parameters. Time series data refers to the ordered data sequence of continuous pressure value changes over time for the water curtain orifices recorded in the remaining sample set during a complete pressure regulation process (e.g., pressure recorded once per second for 120 seconds, totaling 121 data points). The adjustment time refers to the time required for the water curtain orifice pressure to rise (or fall) to the target value from the initial value at the start of adjustment in a single sample (e.g., 40 seconds for adjustment from 0.85 MPa to 0.90 MPa). The pressure change amplitude refers to the difference between the target and initial values ​​of the water curtain orifice pressure in a single sample. The adjustment rate for each sample refers to the rate of pressure change per unit time calculated by dividing the pressure change amplitude by the corresponding adjustment time for each sample in the remaining sample set (e.g., 0.05 MPa / 40 s = 0.00125 MPa / s), reflecting the speed of adjustment in that sample. The target pressure difference is the difference between the current real-time pressure value of the water curtain orifice and the target reference pressure value in the dynamic pressure target range, used to determine the amount of pressure to be compensated. The adjustment duration is the time estimated based on the target pressure difference and adjustment rate to complete this pressure adjustment (e.g., target pressure difference 0.03 MPa ÷ adjustment rate 0.001 MPa / s = 30 s), used as the time factor for pressure compensation calculation. Pressure compensation amount = target pressure difference × adjustment time × preset pressure compensation coefficient. The rock mass elastic modulus refers to the physical parameter (e.g., 25 GPa) of the rock mass's ability to undergo elastic deformation under pressure, reflecting the rock mass's response stiffness to changes in water pressure. In this embodiment, it is used to determine the preset pressure compensation coefficient. The higher the rock mass elastic modulus, the smaller the preset pressure compensation coefficient, and vice versa. In this embodiment, the water curtain pressure adjustment system has a built-in mapping table that divides the rock mass elastic modulus into several intervals and sets a preset pressure compensation coefficient for each interval.

[0045] Step S50: Based on the dynamic pressure target range and the linkage adjustment parameters, a graded adjustment command is sent to the electric regulating valve corresponding to the water curtain orifice to complete the linkage pressure adjustment.

[0046] It should be noted that the graded regulation command refers to the water curtain pressure regulation system dividing the regulation action into multiple execution levels based on the dynamic pressure target range and linkage regulation parameters, and sending control commands containing different regulation intensities, response speeds, and execution sequences to the electric regulating valve accordingly. Each level corresponds to a specific valve position change rate and target opening range, ensuring that the pressure regulation process avoids drastic fluctuations while quickly converging to the target range, achieving stable, precise, and coordinated pressure control.

[0047] As an example, the step of sending graded adjustment commands to the electric regulating valve corresponding to the water curtain orifice based on the dynamic pressure target range and the linkage adjustment parameters to complete the linkage pressure adjustment includes: setting the valve action acceleration and opening conversion coefficient corresponding to each preset adjustment level; determining the target adjustment level, target action acceleration, and target opening conversion coefficient based on the preset adjustment level and the target adjustment speed in the linkage adjustment parameters; multiplying the target pressure compensation amount in the linkage adjustment parameters by the target opening conversion coefficient to obtain the valve opening change; and adjusting the valve opening change based on the target action acceleration... Calculate the time gradient of valve opening change; verify the valve opening change and the time gradient of valve opening change according to the dynamic pressure target range, and obtain the verification result; when the verification result is unsuccessful, return to the step of inputting the pressure change data of this hole, the pressure change data of the left and right adjacent holes, and the geological regulation parameters into a big data sample database for parameter matching to obtain the linkage regulation parameters; when the verification result is successful, generate a graded regulation command according to the target regulation level, the valve opening change, and the adjacent hole interlock identifier; send the graded regulation command to the electric regulating valve corresponding to the water curtain hole to complete the linkage pressure regulation.

[0048] The preset regulation levels refer to three predefined pressure regulation speed classification standards used to distinguish the degree of regulation urgency: fast level (regulation speed ≥ 0.05 MPa / s), normal level (0.02–0.05 MPa / s), and slow level (<0.02 MPa / s). Each level corresponds to different control strategies and execution intensities. Valve action acceleration refers to the increase in the rate of valve position change per unit time during the opening change of the electric control valve (e.g., the time required to accelerate from a standstill to the target opening rate). It is used to control the smoothness and response speed of valve action, avoiding sudden shocks. The opening conversion coefficient is a proportional factor that converts the pressure compensation amount into the corresponding valve opening change amount. Its value is set according to the regulation level (e.g., 1.2 for fast level, 1.0 for normal level, and 0.8 for slow level), reflecting the pressure-opening mapping relationship under different regulation intensities. The target regulation level refers to the matching level determined by comparing the target regulation speed in the linkage regulation parameters with the threshold range of the preset regulation level (e.g., if the target regulation speed is 0.04 MPa / s, then the target regulation level is determined to be the normal level). The target actuation acceleration refers to the valve actuation acceleration setpoint bound to the target regulation level and used for this regulation (e.g., the actuation acceleration corresponding to the normal level is 0.3 % / s²), serving as the basic parameter for calculating the time gradient of the opening change. The target opening conversion coefficient refers to the opening conversion coefficient corresponding to the target regulation level (e.g., if the target regulation level is the normal level, then the target opening conversion coefficient is 1.0), used to accurately convert the pressure compensation amount into the valve opening command. The valve opening change amount refers to the change in the electric regulating valve opening value required for this regulation, calculated by multiplying the target pressure compensation amount by the target opening conversion coefficient (e.g., if the target pressure compensation amount is 0.03 MPa and the target opening conversion coefficient is 1.0, then the opening change amount is 3%). The time gradient of valve opening change refers to the segmented execution sequence after uniformly decomposing the total valve opening change over time. Specifically, the maximum adjustment rate that the valve can achieve is determined by the target action acceleration (e.g., the maximum rate is 1.5% / s). The total adjustment time is obtained by dividing the total opening change by this maximum rate. Finally, the total time is divided into several time periods, and each time period is assigned a corresponding opening increment to form a smooth opening change curve (the opening change corresponding to each time period is the time gradient).

[0049] As an example, the step of verifying the valve opening change and the opening change time gradient according to the dynamic pressure target range to obtain the verification result includes: calculating the expected pressure change value corresponding to the valve opening change based on the valve opening-pressure conversion curve; when the expected pressure change value is not within the dynamic pressure target range, the verification result is "fail"; when the expected pressure change value is within the dynamic pressure target range, calculating the instantaneous pressure change rate for each time period based on the opening change time gradient and the valve opening-pressure conversion curve; when the instantaneous pressure change rate exceeds the adjustment speed range corresponding to the target adjustment level, the verification result is "fail"; when the instantaneous pressure change rate does not exceed the adjustment speed range corresponding to the target adjustment level, the verification result is "pass".

[0050] The verification result refers to the comprehensive judgment made on whether the change in valve opening and the time gradient of the opening change meet the dynamic pressure target range and regulation level constraints. If both verifications are satisfied, it is "passed"; otherwise, it is "failed." This result is used to determine whether to execute the current level regulation command or to re-match the parameters. The valve opening-pressure conversion curve is an empirical or calibration curve describing the correspondence between the change in the opening of the electric regulating valve and the change in the water curtain orifice injection pressure (e.g., for every 1% increase in opening, the pressure rises by approximately 0.008 MPa). It is used to convert valve action into a predictable pressure response. The expected pressure change value refers to the expected pressure change of the water curtain orifice after completing this regulation, obtained by mapping the valve opening change to the valve opening-pressure conversion curve (e.g., a 3% change in opening corresponds to an expected pressure change of +0.024 MPa). The instantaneous pressure change rate refers to the rate of pressure change per unit time. First, the system divides the overall regulation process into several equal-length time intervals based on the valve opening change time gradient. Then, for each time interval, the allocated opening change is extracted, and combined with the valve opening-pressure conversion curve, the corresponding pressure change for that time interval is calculated. Finally, this pressure change is divided by the duration of that time interval (e.g., 0.0048 MPa ÷ 10 s) to obtain the instantaneous pressure change rate for that time interval, used to verify whether it exceeds the allowable regulation rate range of the target regulation level. The regulation rate range refers to the allowable pressure change rate interval bound to the target regulation level, specifically: fast level ≥ 0.05 MPa / s, normal level 0.02–0.05 MPa / s, and slow level < 0.02 MPa / s, used to limit the severity of the regulation process and ensure stable system operation.

[0051] As an example, the step of generating a graded adjustment command based on the target adjustment level, the valve opening change, and the adjacent hole interlock identifier when the verification result is passed includes: when the verification result is passed, querying the water curtain hole location topology map to determine the left and right adjacent hole valve numbers of the electric regulating valve corresponding to the water curtain hole; when the target adjustment level is the fast level, setting the adjacent hole interlock identifier to open and setting the interlock delay time; encapsulating the target adjustment level, the valve opening change, the left and right adjacent hole valve numbers, the adjacent hole interlock identifier, and the interlock delay time into an instruction frame (arranged sequentially according to a predefined communication protocol format to form a structured data block, which is the instruction frame); performing CRC verification on the instruction frame to generate a check code; and appending the check code to the end of the instruction frame to obtain the graded adjustment command.

[0052] The water curtain orifice location topology map is a structured data diagram describing the spatial arrangement of all water curtain orifices in a water curtain system and their corresponding electric regulating valve numbers. It is typically stored in the form of a linked list, array, or graph structure, used for quickly querying the connection relationships and equipment identifiers between any water curtain orifice and its left and right adjacent orifices. The left and right adjacent orifice valve numbers refer to the unique equipment numbers of the electric regulating valves corresponding to two water curtain orifices physically adjacent to the current water curtain orifice (i.e., located adjacent to the left and right sides in the same water curtain tunnel) (e.g., the current orifice valve number is V103, the left neighbor is V102, and the right neighbor is V104). These are used to identify and coordinate the actions of adjacent valves during coordinated regulation. The adjacent orifice interlock flag is a logical flag used to control whether to interlock the actions of adjacent water curtain orifice valves. When this flag is "on," it indicates that during rapid regulation of the current water curtain orifice, its left and right adjacent orifice valves are prohibited from simultaneously undergoing large-scale regulation to avoid local water pressure oscillations or rock disturbances caused by simultaneous and violent actions of multiple orifices. The interlock delay time refers to the duration (e.g., 20 seconds) during which the system forces the valves of adjacent water curtain holes to suspend their adjustment actions after the interlock indicator of the adjacent holes is activated. During this period, the adjacent holes are only allowed to maintain their current state or perform fine adjustments. Normal linkage adjustment can only be resumed after the delay time ends, so as to ensure a smooth transition of the pressure field.

[0053] This embodiment provides a method for coordinated pressure regulation of adjacent water curtain holes. First, it collects pressure change data for each water curtain hole, pressure change data for adjacent holes, basic experimental data for single holes, and geological regulation parameters to comprehensively obtain the hydraulic state and geological constraints of the current hole and its surrounding area, providing multi-dimensional basis for subsequent collaborative decision-making. Next, based on the above data, it calculates the sealing coordination weight coefficient for each water curtain hole, quantifying its adjustment priority in the overall sealing system, making the control strategy more aligned with the actual hydraulic coupling relationship. Then, combining this weight coefficient with the geological regulation parameters, it dynamically determines the safe pressure target range for each water curtain hole, ensuring that the pressure remains within a range that ensures effective sealing and structural safety. Next, it inputs the pressure change data and geological regulation parameters of the current hole and adjacent holes into a large data sample database for parameter matching, using historical effective regulation cases to generate coordinated regulation parameters adapted to the current operating conditions, improving the accuracy and adaptability of the regulation. Finally, based on the dynamic pressure target range and the coordinated regulation parameters, it sends tiered regulation commands to the corresponding electric regulating valves to achieve stable and orderly pressure adjustment. This embodiment can achieve coordinated pressure regulation based on the hydraulic connectivity of adjacent water curtain holes to maintain the dynamic balance of oil and water pressure in underground water-sealed caverns.

[0054] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 2 , Figure 2 This is a flowchart illustrating the second embodiment of the linkage pressure adjustment method for adjacent water curtain holes in this application. Step S20 of the linkage pressure adjustment method for adjacent water curtain holes includes steps S21 to S25: Step S21: Based on the fracture connectivity rate in the geological adjustment parameters, set the adjacent borehole influence weighting factor.

[0055] It should be noted that the adjacent borehole influence weighting factor is a coefficient set based on the fracture connectivity rate to quantify the degree of influence of adjacent water curtain boreholes on the pressure regulation of the current water curtain borehole. This factor reflects the coupling effect of water pressure disturbance from adjacent boreholes caused by rock fracture connectivity on the borehole under specific geological conditions: the higher the fracture connectivity rate, the stronger the hydraulic transmission, and the larger the adjacent borehole influence weighting factor (e.g., when the fracture connectivity rate is 75%, the adjacent borehole influence weighting factor is set to 0.9); conversely, the smaller the factor, the lower the connectivity rate (e.g., when the fracture connectivity rate is 40%, the adjacent borehole influence weighting factor is set to 0.3). This factor is used to reasonably incorporate the contribution weight of adjacent borehole pressure data when calculating the sealing coordination weighting coefficient or linkage regulation parameters.

[0056] Step S22: Calculate the initial collaborative weight of the water curtain hole based on the single-hole experimental data, the adjacent hole influence weight factor, the pressure change data of this hole, and the pressure change data of the left and right adjacent holes.

[0057] It should be noted that the initial synergistic weight is a relative importance coefficient that the water curtain hole should bear in the multi-hole linkage regulation, which is calculated based on a comprehensive consideration of the water injection performance of the water curtain hole itself (characterized by the basic data of single-hole experiments), the degree of hydraulic influence of adjacent water curtain holes on it (reflected by the adjacent hole influence weight factor), the current pressure change trend of the hole (reflected by the pressure change data of the hole), and the pressure dynamics of the left and right adjacent holes (reflected by the pressure change data of the left and right adjacent holes).

[0058] As an example, the step of calculating the initial collaborative weight of the water curtain hole based on the single-hole experimental baseline data, the adjacent hole influence weighting factor, the pressure change data of the hole itself, and the pressure change data of the left and right adjacent holes includes: extracting the pressure conduction efficiency and steady-state response time from the single-hole experimental baseline data; calculating the pressure change rate of the hole itself and the pressure change rate of the left and right adjacent holes based on the pressure change data of the hole itself and the pressure change rate of the left and right adjacent holes; calculating the pressure change synchronization rate between the water curtain hole and the left and right adjacent holes based on the pressure change rate of the hole itself and the pressure change rate of the left and right adjacent holes; calculating the steady-state response efficiency based on the preset baseline response time and the steady-state response time; and multiplying the pressure conduction efficiency, the pressure change synchronization rate, the adjacent hole influence weighting factor, and the steady-state response efficiency to obtain the initial collaborative weight of the water curtain hole.

[0059] Pressure transmission efficiency refers to the ability of a water curtain orifice to effectively transmit water injection pressure from the start of adjustment to the surrounding rock fissures and form a stable water pressure response during a single-hole experiment. It is usually expressed as the ratio of the effective sealing pressure increment generated per unit increment of injection pressure, reflecting the efficiency of the orifice in establishing a hydraulic barrier in the rock mass. The effective sealing pressure increment ratio refers to the ratio between the actual effective pressure increment formed in the surrounding rock fissures after water injection in a single-hole experiment, which can be used to maintain the water seal, and the applied injection pressure increment. Stable response time refers to the time required for the water curtain orifice to reach and maintain pressure within ±5% of the target value during a single-hole experiment (e.g., 120 seconds), used to measure the dynamic response speed of the orifice's pressure system. The pressure change synchronization rate refers to the degree of consistency in pressure change trends between the current water curtain orifice and its left and right neighboring orifices. It is calculated by averaging the ratios of the pressure change slope of the current orifice to the slopes of the left and right neighboring orifices (formula: Pressure Change Synchronization Rate = (Pressure Change Slope of Current Orifice / Pressure Change Slope of Left Neighboring Orifice + Pressure Change Slope of Current Orifice / Pressure Change Slope of Right Neighboring Orifice) / 2). The closer the value is to 1, the more synchronized the pressure changes between orifices, and the stronger the hydraulic coupling. The preset reference response time refers to the reference time standard (e.g., 100 seconds) set by the system for evaluating the response performance of the water curtain orifice. It serves as the benchmark for calculating the stable response efficiency, and this value is determined based on typical geological conditions and engineering experience. The stable response efficiency is an efficiency index calculated by comparing the preset reference response time with the measured stable response time in a single-orifice experiment. It is used to quantify the adjustment agility of the water curtain orifice relative to the ideal response speed.

[0060] Step S23: Calculate the pressure change of the adjacent holes based on the pressure values ​​of the left and right adjacent holes before the water curtain hole is adjusted and the stable pressure values ​​of the left and right adjacent holes within a preset time after the adjustment.

[0061] It should be noted that the preset time refers to a fixed observation period (e.g., 3 minutes) set by the system to observe and evaluate the impact of the current water curtain orifice's adjustment action on adjacent water curtain orifices. After this period, it is determined whether the pressure of the adjacent orifices has stabilized. The stable pressure value refers to the pressure reading at the end of the preset time when the pressures of the left and right adjacent orifices have essentially stopped fluctuating significantly and entered a stable state. It represents the final pressure response result after the adjustment disturbance. The adjacent orifice pressure change refers to the difference between the pressure values ​​of the left and right adjacent orifices before the current water curtain orifice adjustment and the stable pressure values ​​reached within the preset time after adjustment. It is used to quantify the degree of hydraulic disturbance caused by the adjustment of this orifice to the adjacent orifices.

[0062] Step S24: Multiply the pressure change of the adjacent hole by the influence weighting factor of the adjacent hole to obtain the pressure compensation contribution value of the water curtain hole to the left and right adjacent holes.

[0063] It should be noted that the pressure compensation contribution value refers to the pressure disturbance effect generated by the current water curtain orifice on the left and right adjacent orifices during the regulation process. This value is quantified after correction by the adjacent orifice influence weighting factor and is used to compensate for the pressure changes of adjacent orifices in the reverse direction. Specifically, this value is obtained by multiplying the pressure change of adjacent orifices (i.e., the pressure change of adjacent orifices caused by the regulation of this orifice) by the adjacent orifice influence weighting factor (reflecting the strength of geological connectivity). It is used to offset the coupling interference caused by the action of this orifice in the subsequent regulation calculation of adjacent orifices, thereby improving the synergy and stability of multi-orifice linkage regulation.

[0064] Step S25: Correct the initial collaborative weight based on the pressure compensation contribution value, and then normalize it to obtain the sealing collaborative weight coefficient.

[0065] Understandably, the water curtain pressure regulation system uses the calculated pressure compensation contribution value of the current water curtain hole to the left and right adjacent holes as a correction factor, subtracts this contribution value from the initial collaborative weight (or adjusts it according to the coupling direction) to weaken the potentially overestimated collaborative weight caused by the disturbance to adjacent holes due to the regulation of this hole; then, the initial collaborative weight of all water curtain holes after correction is normalized, that is, the correction value of each hole is divided by the sum of the correction values ​​of all water curtain holes, so that the sum of the weights of each hole is 1, and finally the sealing collaborative weight coefficient that reflects the multi-hole collaborative relationship and considers the disturbance compensation of adjacent holes is obtained.

[0066] Adjusting based on coupling direction means that when correcting the initial coordination weight, it is necessary to determine whether the pressure disturbance caused by the current water curtain hole's adjustment action on the left and right adjacent holes is positively coupled (leading to an increase in pressure in adjacent holes) or negatively coupled (leading to a decrease in pressure in adjacent holes), and decide whether to subtract or add the pressure compensation contribution value accordingly, so as to more accurately reflect the actual impact of this hole on the system coordination.

[0067] This embodiment first sets an adjacent borehole influence weighting factor based on the fracture connectivity rate in the geological regulation parameters to reflect the hydraulic coupling strength between adjacent water curtain boreholes due to rock mass connectivity. Second, combining single-bore experimental data, adjacent borehole influence weighting factors, borehole pressure change data, and pressure change data of the left and right adjacent boreholes, the initial synergistic weight of the water curtain borehole is calculated to preliminarily quantify its regulatory importance in the multi-pore system. Then, based on the pressure values ​​of the left and right adjacent boreholes before and after water curtain borehole regulation, the pressure change of the adjacent borehole is calculated to objectively assess the disturbance caused by the regulation of the current borehole to the adjacent boreholes. Next, the pressure change of the adjacent borehole is multiplied by the adjacent borehole influence weighting factor to obtain the pressure compensation contribution value of the current borehole to the adjacent borehole, which is used to quantify the correction amount of the coupling effect. Finally, the initial synergistic weight is corrected using this pressure compensation contribution value, and the corrected weights of all water curtain boreholes are normalized to obtain the sealing synergistic weight coefficient, making the weight of each borehole more accurately reflect its role in synergistic regulation.

[0068] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the linkage pressure adjustment method of adjacent water curtain holes in this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0069] This application also provides a linkage pressure regulating device for adjacent water curtain holes; please refer to [reference needed]. Figure 3 The linkage pressure regulating device for adjacent water curtain holes includes: Data acquisition module 10 is used to collect pressure change data of each water curtain hole, pressure change data of adjacent holes, basic experimental data of single hole and geological adjustment parameters. The collaborative weight calculation module 20 is used to calculate the sealing collaborative weight coefficient of the water curtain hole based on the pressure change data of this hole, the pressure change data of the left and right adjacent holes, the basic experimental data of the single hole and the geological adjustment parameters. The target range determination module 30 is used to determine the dynamic pressure target range of the water curtain hole based on the sealing coordination weight coefficient and the geological adjustment parameters. The linkage parameter generation module 40 is used to input the pressure change data of this borehole, the pressure change data of the left and right adjacent boreholes and the geological adjustment parameters into a big data sample library for parameter matching to obtain the linkage adjustment parameters. The adjustment command sending module 50 is used to send graded adjustment commands to the electric regulating valve corresponding to the water curtain hole based on the dynamic pressure target range and the linkage adjustment parameters, so as to complete the linkage pressure adjustment.

[0070] The pressure regulation device for adjacent water curtain holes provided in this application, employing the pressure regulation method for adjacent water curtain holes described in the above embodiments, can solve the technical problem of how to achieve coordinated pressure regulation based on the hydraulic connectivity of adjacent water curtain holes to maintain the dynamic balance of oil and water pressure in underground water-sealed caverns. Compared with the prior art, the beneficial effects of the pressure regulation device for adjacent water curtain holes provided in this application are the same as those of the pressure regulation method for adjacent water curtain holes provided in the above embodiments, and other technical features in the pressure regulation device for adjacent water curtain holes are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0071] This application provides a linkage pressure regulating device for adjacent water curtain holes. The linkage pressure regulating device for adjacent water curtain holes includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the linkage pressure regulating method for adjacent water curtain holes in the above embodiment 1.

[0072] The following is for reference. Figure 4This document illustrates a structural schematic diagram of a linkage pressure regulating device suitable for implementing the embodiments of this application for adjacent water curtain holes. The linkage pressure regulating device for adjacent water curtain holes in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 4 The pressure regulating device for adjacent water curtain holes shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0073] like Figure 4 As shown, the pressure regulating device for adjacent water curtain holes may include a processing unit 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in ROM (Read Only Memory) 1002 or a program loaded from storage device 1003 into RAM (Random Access Memory) 1004. RAM 1004 also stores various programs and data required for the operation of the pressure regulating device for adjacent water curtain holes. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via bus 1005. Input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to I / O interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, LCDs (Liquid Crystal Displays), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. Communication device 1009 allows the pressure regulating devices of adjacent water curtain holes to communicate wirelessly or wiredly with other devices to exchange data. Although the figures show pressure regulating devices of adjacent water curtain holes with various systems, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems can be implemented alternatively.

[0074] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0075] The pressure regulation device for adjacent water curtain holes provided in this application, employing the pressure regulation method for adjacent water curtain holes described in the above embodiments, solves the technical problem of how to achieve coordinated pressure regulation based on the hydraulic connectivity of adjacent water curtain holes to maintain the dynamic balance of oil and water pressure in underground water-sealed caverns. Compared with the prior art, the beneficial effects of the pressure regulation device for adjacent water curtain holes provided in this application are the same as those of the pressure regulation method for adjacent water curtain holes provided in the above embodiments, and other technical features of the pressure regulation device for adjacent water curtain holes are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0076] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0077] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0078] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the linkage pressure regulation method for adjacent water curtain holes in the above embodiments.

[0079] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, RAM (Random Access Memory), ROM (Read Only Memory), EPROM (Erasable Programmable Read Only Memory or Flash Memory), optical fibers, CD-ROM (CD-Read Only Memory), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0080] The aforementioned computer-readable storage medium may be included in the linkage pressure regulating device of adjacent water curtain holes; or it may exist independently and not be assembled into the linkage pressure regulating device of adjacent water curtain holes.

[0081] The aforementioned computer-readable storage medium carries one or more programs. When these programs are executed by the linkage pressure regulating devices of adjacent water curtain holes, the linkage pressure regulating devices of adjacent water curtain holes cause the following: They collect pressure change data of each water curtain hole, pressure change data of the left and right adjacent holes, basic experimental data of a single hole, and geological regulation parameters; they calculate the sealing coordination weight coefficient of the water curtain hole based on the pressure change data of the water curtain hole, the pressure change data of the left and right adjacent holes, the basic experimental data of a single hole, and the geological regulation parameters; they determine the dynamic pressure target range of the water curtain hole based on the sealing coordination weight coefficient and the geological regulation parameters; they input the pressure change data of the water curtain hole, the pressure change data of the left and right adjacent holes, and the geological regulation parameters into a large data sample database for parameter matching to obtain linkage regulation parameters; and based on the dynamic pressure target range and the linkage regulation parameters, they send a graded regulation command to the electric regulating valve corresponding to the water curtain hole to complete the linkage pressure regulation.

[0082] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including LAN (Local Area Network) or WAN (Wide Area Network)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0083] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0084] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0085] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the aforementioned method for coordinated pressure regulation of adjacent water curtain holes. This method can solve the technical problem of how to achieve coordinated pressure regulation based on the hydraulic connectivity of adjacent water curtain holes to maintain the dynamic balance of oil and water pressure in underground water-sealed caverns. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the coordinated pressure regulation method of adjacent water curtain holes provided in the above embodiments, and will not be elaborated upon here.

[0086] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the above-described method for adjusting the linkage pressure of adjacent water curtain holes.

[0087] The computer program product provided in this application can solve the technical problem of how to achieve coordinated pressure regulation based on the hydraulic connectivity of adjacent water curtain holes to maintain the dynamic balance of oil and water pressure in underground water-sealed caverns. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the linkage pressure regulation method for adjacent water curtain holes provided in the above embodiments, and will not be repeated here.

[0088] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A method of coordinated pressure regulation of adjacent water curtain apertures, characterized by, The method comprises: Collecting the pressure change data of each water curtain hole, the pressure change data of left and right adjacent holes, the single-hole experimental basic data and the geological adjustment parameters; According to the pressure change data of the hole, the pressure change data of the left and right adjacent holes, the single-hole experimental basic data and the geological adjustment parameters, the sealing synergistic weight coefficient of the water curtain hole is calculated; According to the sealing synergistic weight coefficient and the geological adjustment parameters, the dynamic pressure target interval of the water curtain hole is determined; The pressure change data of the hole, the pressure change data of the left and right adjacent holes and the geological adjustment parameters are input into a big data sample library for parameter matching to obtain linkage adjustment parameters; Based on the dynamic pressure target interval and the linkage adjustment parameters, a hierarchical adjustment instruction is sent to the electrically adjusted valve corresponding to the water curtain hole to complete the linkage pressure adjustment.

2. The method of claim 1, wherein, The step of calculating the sealing synergistic weight coefficient of the water curtain hole according to the pressure change data of the hole, the pressure change data of the left and right adjacent holes, the single-hole experimental basic data and the geological adjustment parameters comprises: According to the fracture connectivity rate in the geological adjustment parameters, an adjacent hole influence weight factor is set; According to the single-hole experimental basic data, the adjacent hole influence weight factor, the pressure change data of the hole and the pressure change data of the left and right adjacent holes, the initial synergistic weight of the water curtain hole is calculated; According to the pressure values of the left and right adjacent holes before the water curtain hole is adjusted and the stable pressure values of the left and right adjacent holes within a preset time after the water curtain hole is adjusted, the adjacent hole pressure change amount is calculated; The adjacent hole pressure change amount is multiplied by the adjacent hole influence weight factor to obtain the pressure compensation contribution value of the water curtain hole to the left and right adjacent holes; The initial synergistic weight is modified according to the pressure compensation contribution value, and normalization processing is performed after the modification to obtain the sealing synergistic weight coefficient.

3. The method of claim 2, wherein, The step of calculating the initial synergistic weight of the water curtain hole according to the single-hole experimental basic data, the adjacent hole influence weight factor, the pressure change data of the hole and the pressure change data of the left and right adjacent holes comprises: The pressure conduction efficiency and stable response time in the single-hole experimental basic data are extracted; According to the pressure change data of the hole and the pressure change data of the left and right adjacent holes, the pressure change rate of the hole and the pressure change rate of the left and right adjacent holes are calculated; According to the pressure change rate of the hole and the pressure change rate of the left and right adjacent holes, the pressure change synchronization rate of the water curtain hole and the left and right adjacent holes is calculated; According to a preset reference response time and the stable response time, a stable response efficiency is calculated; The pressure conduction efficiency, the pressure change synchronization rate, the adjacent hole influence weight factor and the stable response efficiency are multiplied to obtain the initial synergistic weight of the water curtain hole.

4. The method of claim 1, wherein, The step of inputting the pressure change data of the hole, the pressure change data of the left and right adjacent holes and the geological adjustment parameters into a big data sample library for parameter matching to obtain linkage adjustment parameters comprises: According to the pressure change data of the hole and the pressure change data of the left and right adjacent holes, the pressure change rate of the hole and the pressure change rate of the left and right adjacent holes are calculated; The current hole pressure change rate, the left and right adjacent hole pressure change rates, and the geological adjustment parameter are input into a big data sample library, sample matching is performed by using a random forest algorithm, a matching degree sorting result is obtained, and the big data sample library is constructed according to historical single-hole experimental data, historical current hole-adjacent hole pressure linkage data, and historical geological adjustment parameters; According to the matching degree sorting result, a sample set with a matching degree greater than a preset matching degree threshold is extracted, and an adjustment speed and a pressure compensation amount in the sample set are analyzed; The median value of the adjustment speed is taken as a target adjustment speed, and the average value of the pressure compensation amount is taken as a target pressure compensation amount; A linkage adjustment parameter is generated according to the target pressure compensation amount and the target adjustment speed.

5. The method of claim 4, wherein, The step of analyzing the adjustment speed and the pressure compensation amount in the sample set comprises: The adjacent hole pressure fluctuation amplitudes of each sample in the sample set are counted, and samples with adjacent hole pressure fluctuation amplitudes greater than a preset fluctuation amplitude threshold are removed to obtain a remaining sample set; Time sequence data of a pressure adjustment process is extracted from the remaining sample set; The adjustment time consumption of pressure from an initial value to a target value in the remaining sample set is calculated; According to the adjustment time consumption and the pressure change amplitude, the adjustment speed of each sample in the remaining sample set is calculated; A target pressure difference is calculated according to the target reference pressure value of the dynamic pressure target interval and the pressure value of the water curtain hole; An adjustment time length is calculated according to the target pressure difference and the adjustment speed; The pressure compensation amount of each sample in the remaining sample set is calculated according to the adjustment time length, the target pressure difference, and a preset pressure compensation coefficient, and the preset pressure compensation coefficient is determined according to the elastic modulus of the rock mass in the geological adjustment parameter.

6. The method of claim 1, wherein, The step of determining the dynamic pressure target interval of the water curtain hole according to the sealing synergy weight coefficient and the geological adjustment parameter comprises: The maximum pressure-bearing value of the rock mass, the fracture connectivity rate, and the design pressure of the oil storage cavern in the geological adjustment parameter are extracted; The sealing synergy weight coefficient is multiplied by the design pressure of the oil storage cavern to obtain an initial reference pressure value; A pressure correction coefficient is set according to the fracture connectivity rate; The initial reference pressure value is multiplied by the pressure correction coefficient to obtain a target reference pressure value; An initial pressure interval is determined according to a preset safety margin range and the target reference pressure value; The lower limit value of the initial pressure interval is taken as the lower limit of the target interval, and the smaller value between the upper limit value of the initial pressure interval and the maximum pressure-bearing value of the rock mass is taken as the upper limit of the target interval to obtain the dynamic pressure target interval.

7. The method of any one of claims 1 to 6, wherein, The step of sending a hierarchical adjustment instruction to the electrically-driven adjustment valve corresponding to the water curtain hole based on the dynamic pressure target interval and the linkage adjustment parameter to complete linkage pressure adjustment comprises: According to a preset adjustment level, a valve action acceleration corresponding to each level and an opening degree conversion coefficient are set; According to the preset adjustment level and the target adjustment speed in the linkage adjustment parameter, a target adjustment level, a target action acceleration, and a target opening degree conversion coefficient are determined; The target pressure compensation amount in the linkage adjustment parameter is multiplied by the target opening conversion coefficient to obtain a valve opening change amount; An opening change time gradient is calculated according to the valve opening change amount and the target action acceleration; The valve opening change amount and the opening change time gradient are verified according to the dynamic pressure target interval to obtain a verification result; When the verification result is not passed, the step of inputting the bore pressure change data, the left and right adjacent bore pressure change data and the geological adjustment parameter into a big data sample library for parameter matching to obtain linkage adjustment parameters is returned; When the verification result is passed, a hierarchical adjustment instruction is generated according to the target adjustment level, the valve opening change amount and the adjacent bore interlocking identifier; The hierarchical adjustment instruction is sent to the electric regulating valve corresponding to the water curtain hole to complete linkage pressure regulation.

8. A linkage pressure regulating device for adjacent water curtain apertures, characterized by, The device comprises: A data acquisition module is configured to acquire bore pressure change data, left and right adjacent bore pressure change data, single-hole experimental basic data and geological adjustment parameters of each water curtain hole; A cooperative weight calculation module is configured to calculate a sealing cooperative weight coefficient of the water curtain hole according to the bore pressure change data, the left and right adjacent bore pressure change data, the single-hole experimental basic data and the geological adjustment parameters; A target interval determination module is configured to determine a dynamic pressure target interval of the water curtain hole according to the sealing cooperative weight coefficient and the geological adjustment parameters; A linkage parameter generation module is configured to input the bore pressure change data, the left and right adjacent bore pressure change data and the geological adjustment parameters into a big data sample library for parameter matching to obtain linkage adjustment parameters; An adjustment instruction sending module is configured to send a hierarchical adjustment instruction to an electric regulating valve corresponding to the water curtain hole based on the dynamic pressure target interval and the linkage adjustment parameters to complete linkage pressure regulation.

9. A linkage pressure regulating apparatus of adjacent water curtain holes, characterized by, The device comprises a memory, a processor and a computer program stored on the memory and executable on the processor, and the computer program is configured to implement the steps of the linkage pressure regulation method of adjacent water curtain holes according to any one of claims 1 to 7.

10. A storage medium, characterized by The storage medium is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the linkage pressure regulation method of adjacent water curtain holes according to any one of claims 1 to 7.

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