Method for determining reliability of compressed air energy storage underground gas storage under earthquake action

Abstract

The invention relates to the technical field of data processing, and discloses a method for determining the reliability of a compressed gas energy storage underground gas storage under the action of an earthquake. Comprising the steps that earthquake influence parameters are combined into a parameter set, the effective state of an earthquake event is recognized, a three-dimensional model of the underground gas storage is constructed, simulation parameter bits are marked, comprehensive reliable parameters are obtained, the comprehensive reliable parameters are imported into the simulation parameter bits, a gas storage simulation model is generated, and the reliability level of the underground gas storage is determined. Compared with the prior art, the method has the advantages that the analysis threshold of reliability determination can be improved, the workload of reliability analysis can be reduced, and the acquired comprehensive reliable parameters can be subjected to analog simulation processing in combination with the gas storage simulation model, so that the negative influence degree of an earthquake event on the underground gas storage can be truly and accurately analyzed; the problems of high burden and inaccurate calculation caused by analysis and calculation after real-time monitoring through multiple sensors in the prior art are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and more specifically, to a method for determining the reliability of an underground gas storage reservoir for compressed gas energy storage under earthquake action. Background Art

[0002] The patent application with reference publication number CN115935588A discloses a stability evaluation method for a double-well salt cavern gas storage with small well spacing, comprising step 1: determining the geological structural characteristics of the rock formation area where the salt cavern gas storage is located by using three-dimensional seismic exploration technology; step 2: performing three-dimensional morphological measurement on the salt cavity of the first well and the second well of the salt cavern gas storage, and synthesizing a three-dimensional image and volume of the salt cavity; step 3: drilling a data well near the salt cavern gas storage construction block, extracting the data well core for testing, and obtaining the physical and mechanical parameters of the salt rock, mudstone and interlayer in the core; step 4: establishing a geomechanical numerical model of the salt cavity of the gas storage; step 5: evaluating the dynamic stability of the gas storage with different well spacing and storage capacity parameters; the method can realize the quantitative evaluation of the stability of the double-well salt cavern gas storage with small well spacing, optimize the double-well spacing to improve the stability of the double-well salt cavern gas storage with small well spacing, and at the same time, reasonable measures can be given according to the stability evaluation results to prevent possible operational instability and damage of the gas storage, which is more in line with actual engineering geological conditions.

[0003] When determining the reliability of existing underground gas storage, a large amount of comprehensive data of the underground gas storage is collected in real time through various sensors, and the reliability of the underground gas storage under earthquake is obtained after classifying, analyzing and calculating the large amount of comprehensive data. Due to the low threshold for determining the reliability of underground gas storage, the amount of data involved in collection, analysis and calculation is too large, which increases the workload of reliability determination and the probability of error in reliability determination. As a result, it is impossible to truly and accurately analyze the negative impact of earthquake effects on underground gas storage, which reduces the accuracy of reliability determination of underground gas storage.

[0004] In view of this, the present invention proposes a method for determining the reliability of an underground gas storage reservoir with compressed gas energy storage under earthquake action to solve the above-mentioned problem. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art and to achieve the above-mentioned purpose, the present invention provides the following technical solutions: A reliability determination method for an underground gas storage reservoir with compressed gas energy storage under earthquake action, applied to a monitoring server, comprising: S1: obtaining earthquake impact parameters of an earthquake event, and combining the earthquake impact parameters into a parameter set based on a parameter combination criterion, wherein the earthquake impact parameters include earthquake magnitude and focal center value; S2: performing validity identification on the parameter set, identifying the valid state of the earthquake event, and determining whether to enter a reliability determination mode, wherein the valid state includes a valid pass state and a valid reject state; if entering the reliability determination mode, executing S3; if not entering the reliability determination mode, executing S4. mode, and repeat S1-S2; S3: obtain the structural characteristics of the underground gas storage, construct a three-dimensional model of the underground gas storage, and mark the simulation parameter positions in the three-dimensional model, and the simulation parameter positions include inner area positions and outer area positions; S4: obtain the comprehensive reliability parameters of the underground gas storage under the earthquake event, and the comprehensive reliability parameters include air pressure fluctuation value, maximum temperature value, water level change rate and gap reduction value; S5: import the comprehensive reliability parameters into the simulation parameter positions of the three-dimensional model one by one, generate a gas storage simulation model, and calculate the simulation reliability of the gas storage simulation model to determine the reliability level of the underground gas storage, and the reliability level includes high reliability level and low reliability level.

[0006] Furthermore, the method for obtaining the focal center value includes: monitoring the coordinate value of the focal center of the earthquake event through the seismic network, and marking the point where the coordinate value of the focal center is located on the electronic map to obtain the focal center point; querying the coordinate value of the underground gas storage reservoir through the geographic information system, and marking the point where the coordinate value of the underground gas storage reservoir is located on the electronic map to obtain the center point of the gas storage reservoir; querying the safety impact distance of the underground gas storage reservoir through the technical parameter table, and drawing a circle with the center point of the gas storage reservoir as the center and the safety impact distance as the radius to obtain the safety impact circle; marking the points at equal angles on the safety impact circle. The distance measurement points are measured one by one, and the location of the center of the earthquake source is measured to The distance between the measuring points is obtained Sub-distance value; The sub-distance values ​​are accumulated and averaged to obtain the focal center value; the expression of the focal center value is: .

[0007] In the formula, is the focal center value, For the The sub-distance value.

[0008] Furthermore, the parameter combination criterion is: first fill the first parameter position, and then fill the second parameter position; the parameter set combination method includes: screening out a blank basic set from the set database, establishing two independent parameter positions in the basic set, and marking the two parameter positions as the first parameter position and the second parameter position in sequence; drawing a first boundary line and a second boundary line at the front end and the rear end of the first parameter position and the second parameter position respectively, and recording the position between the first boundary line and the second boundary line as a filling area; first filling the source level into the filling area of ​​the first parameter position, and then filling the source center value into the filling area of ​​the second parameter position to obtain a parameter set.

[0009] Furthermore, the method for identifying the effective pass state and the effective rejection state includes: querying the safety level and safety center value of the underground gas storage reservoir through the database, and identifying the digital parts of the safety level and the safety center value, which are respectively recorded as the first safety value and the second safety value; marking the digital parts of the first parameter bit and the second parameter bit one by one to obtain the first comparison value and the second comparison value; when the first comparison value is less than the first safety value or the second comparison value is greater than the second safety value, the earthquake event is identified as a valid rejection state; when the first comparison value is greater than or equal to the first safety value, and the second comparison value is less than or equal to the second safety value, the earthquake event is identified as a valid pass state; the method for determining whether to enter the reliability determination mode includes: when the valid state is the valid rejection state, determining not to enter the reliability determination mode; when the valid state is the valid pass state, determining to enter the reliability determination mode.

[0010] Furthermore, the structural features include geological structure, stratigraphic distribution and lithological characteristics; the marking method of the inner and outer regional positions includes: querying the geographic data of the underground gas storage through a geographic information system, and constructing a contour model through virtual reality technology based on the geographic data; marking the geological frame, stratigraphic frame and lithological frame in the contour model respectively, and importing the geological structure, stratigraphic distribution and lithological characteristics into the geological frame, the bottom frame and the lithological frame in turn to generate a three-dimensional model; identifying the outer boundary of the underground gas storage in the three-dimensional model, and drawing a line along the position of the outer boundary to obtain a regional boundary line, recording the area inside the regional boundary line as the gas storage area, and recording the area inside the regional boundary line as the gas storage area. The area outside the boundary line is recorded as the underground area; in the gas storage area, q first marking points are randomly marked based on the length of the first spacing value from the regional boundary line; the distance between two adjacent first marking points is measured one by one, recorded as the first distance value, and the two first marking points corresponding to the maximum value of the first distance value are recorded as inner area positions to obtain two inner area positions; in the underground area, s second marking points are randomly marked based on the length of the second spacing value from the regional boundary line; the distance between two adjacent second marking points is measured one by one, recorded as the second distance value, and the two second marking points corresponding to the maximum value of the second distance value are recorded as outer area positions to obtain two outer area positions.

[0011] Furthermore, the method for obtaining the air pressure fluctuation value includes: marking p air pressure moments based on a preset air pressure cycle, and monitoring the real-time air pressure of the underground gas storage at the p air pressure moments through an air pressure sensor to obtain p real-time air pressure values; subtracting the p real-time air pressure values ​​from the standard air pressure value in turn to obtain p air pressure difference values; recording the air pressure difference value greater than 0 as a valid difference value, and obtaining The effective difference is The effective differences are accumulated and averaged to obtain the pressure fluctuation value; the expression of the pressure fluctuation value is: .

[0012] In the formula, is the air pressure fluctuation value, For the A valid difference.

[0013] Furthermore, the method for obtaining the water level change rate includes: at time T1, by deploying A water level sensor monitors the real-time water level of groundwater and obtains The first water level value; at time T2, by deploying A water level sensor monitors the real-time water level of groundwater and obtains The second water level value; The second water level values ​​are compared with After subtracting the first water level value, and comparing it with the time from time T1 to time T2, we get The expression of the sub-change rate is: .

[0014] In the formula, For the The rate of change of For the The second water level value, For the The first water level value, is the duration from time T1 to time T2; remove the maximum and minimum values ​​of the sub-rate of change, and The water level change rate is obtained by accumulating the individual change rates and averaging them. The expression of the water level change rate is: .

[0015] In the formula, is the water level change rate, For the The rate of change of the child.

[0016] Furthermore, the gap reduction value is expressed as: at the same time, by The laser rangefinders in the underground gaps measure the width of the underground gaps respectively and obtain After the preset reduction time, by The laser rangefinders in the underground gaps measure the width of the underground gaps respectively and obtain The end gap value; The initial gap values ​​are After subtracting the terminal gap values, the differences are accumulated and averaged to obtain the gap reduction value; the gap reduction value expression is: .

[0017] In the formula, is the gap reduction value, For the The initial gap value, For the The ending gap value.

[0018] Furthermore, the method for generating a gas storage reservoir simulation model includes: in a three-dimensional model, importing the air pressure fluctuation value and the maximum temperature value one by one into two inner regional positions of the three-dimensional model to obtain two inner simulation positions; labeling the two inner simulation positions in turn, recording them as inner position one and inner position two, respectively; importing the water level change rate and the gap reduction value one by one into two outer regional positions of the three-dimensional model to obtain two outer simulation positions; labeling the two outer simulation positions in turn, recording them as outer position one and outer position two, respectively; and recording the three-dimensional model with inner position one, inner position two, outer position one and outer position two as a gas storage reservoir simulation model.

[0019] Furthermore, the calculation method of simulation reliability includes: configuring the basic parameters of the gas storage simulation model, and simulating the operation of the gas storage simulation model; querying the minimum time taken for a complete operation of the gas storage simulation model through the timestamp, and recording it as the shortest time; within the shortest time, querying all the operation events of the gas storage simulation model in real time through the model management system, and identifying the operation status of all the operation events; recording the operation events with a normal operation status as valid events, and counting the number of valid events to obtain the valid value; assigning different weight factors to the shortest time and the valid value respectively and adding them to generate simulation reliability; the expression of simulation reliability is: .

[0020] In the formula, To simulate reliability, For the shortest duration, is a valid value, , is a weight factor greater than 0; the method for determining the high reliability level and the low reliability level includes: The preset reliability threshold compare; when Greater than or equal to When , the reliability level is determined to be high reliability level; when Less than The reliability level is determined to be a low reliability level.

[0021] The technical effects and advantages of the reliability determination method of the compressed gas energy storage underground gas storage under earthquake action of the present invention are as follows: the present invention obtains the earthquake influence parameters of the earthquake event, and based on the parameter combination criterion, combines the earthquake influence parameters into a parameter set, identifies the validity of the parameter set, identifies the effective state of the earthquake event, and determines whether to enter the reliability determination mode, obtains the structural characteristics of the underground gas storage, constructs a three-dimensional model of the underground gas storage, and marks the simulation parameter positions in the three-dimensional model, obtains the comprehensive reliability parameters of the underground gas storage under the earthquake event, imports the comprehensive reliability parameters into the simulation parameter positions of the three-dimensional model one by one, generates a gas storage simulation model, and calculates the simulation reliability of the gas storage simulation model to determine the reliability level of the underground gas storage; compared with the prior art, the reliability level of the underground gas storage is determined by the method. By combining earthquake impact parameters into a parameter set and identifying the validity of the parameter set, earthquake events that cannot have a negative impact on the underground gas storage can be eliminated, the analysis threshold for reliability determination can be increased, and the workload of reliability analysis can be reduced. At the same time, combined with the gas storage simulation model, the obtained comprehensive reliability parameters can be simulated and processed, so as to truly and accurately analyze the negative impact of earthquake events on the underground gas storage, and give the real reliability analysis results of the underground gas storage, effectively realizing the accurate and rapid determination of the reliability of the underground gas storage, avoiding the high burden and inaccurate calculation caused by the traditional real-time monitoring and analysis and calculation through multiple sensors, and playing a role in ensuring the safe and stable operation of the subsequent compressed gas energy storage underground gas storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic flow chart of a method for determining the reliability of an underground gas storage reservoir with compressed gas energy storage under earthquake action provided in Example 1 of the present invention.

[0023] Figure 2 A schematic diagram of a reliability determination system for an underground gas storage reservoir with compressed gas energy storage under earthquake action provided in Example 1 of the present invention.

[0024] Figure 3 A schematic diagram of a structural diagram of an electronic device provided in Embodiment 3 of the present invention.

[0025] Figure 4 A schematic diagram of the structure of a computer-readable storage medium provided in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figure 1 As shown, the reliability determination method of the compressed gas storage underground gas storage under earthquake action described in this embodiment is applied to the monitoring server, including: S1: obtaining the earthquake influence parameters of the earthquake event, and combining the earthquake influence parameters into a parameter set based on the parameter combination criterion, the earthquake influence parameters including the earthquake level and the focal center value; the earthquake influence parameters refer to the relevant parameters that can indicate the negative impact of the earthquake event on the reliability of the compressed gas storage underground gas storage, and can also indicate the characteristics of the earthquake event itself, and serve as the data basis for the subsequent determination of whether the earthquake event will affect the reliability of the underground gas storage; the earthquake influence parameters include the earthquake level and the focal center value; the earthquake level refers to the numerical representation based on the energy released in the earthquake event, which can represent earthquake events of different levels and sizes. When the earthquake level is larger, the more energy is released by the earthquake event, and the negative impact on the underground gas storage is greater; the earthquake level is obtained through seismic network monitoring; the focal center value refers to the distance between the focal center position of the earthquake event and the central position of the underground gas storage, which can be used to determine the distance between the focal center position of the earthquake event and the central position of the underground gas storage. The value of the focal center is expressed by the length of the distance from the center to the underground gas storage reservoir. When the focal center value is larger, the distance between the focal center of the earthquake event and the center of the underground gas storage reservoir is farther, and the negative impact on the underground gas storage reservoir is smaller; the method for obtaining the focal center value includes: monitoring the coordinate value of the focal center of the earthquake event through the seismic network, and marking the point where the coordinate value of the focal center is located on the electronic map to obtain the focal center point; querying the coordinate value of the underground gas storage reservoir through the geographic information system, and marking the point where the coordinate value of the underground gas storage reservoir is located on the electronic map to obtain the center point of the gas storage reservoir; querying the safety impact distance of the underground gas storage reservoir through the technical parameter table, and drawing a circle with the center point of the gas storage reservoir as the center and the safety impact distance as the radius to obtain the safety impact circle; the safety impact distance refers to the shortest distance that can cause a negative impact on the underground gas storage reservoir when an earthquake occurs, so that the safety impact distance can form an annular structure area around the underground gas storage reservoir, thereby providing data support for the subsequent drawing of the safety impact circle; marking the safety impact circle at equal angles on the safety impact circle. The distance measurement points are measured one by one, and the location of the center of the earthquake source is measured to The distance between the measuring points is obtained Sub-distance value; The sub-distance values ​​are accumulated and averaged to obtain the focal center value; the expression of the focal center value is: .

[0028] In the formula, is the focal center value, For the The sub-distance value.

[0029] After obtaining the earthquake magnitude and focal center value, a parameter set can be formed according to the earthquake magnitude and focal center value, so that the parameter set can represent the relevant influencing parameters of the earthquake event as a whole. When forming the parameter set, it is necessary to ensure that the earthquake influencing parameters can accurately and efficiently form the parameter set under the restriction of the parameter combination criterion; the parameter combination criterion is: first fill in the first parameter position, and then fill in the second parameter position; the parameter set combination method includes: screening out a blank basic set from the set database, establishing two independent parameter positions in the basic set, and marking the two parameter positions as the first parameter position and the second parameter position in sequence; the basic set refers to a blank set without actual real data, and serves as the basic framework for subsequent construction of the parameter set, and the parameter position is the smallest unit that constitutes the basic set, and provides a filling position for the earthquake magnitude and focal center value; the first boundary line and the second boundary line are drawn at the front and rear ends of the first parameter position and the second parameter position, respectively, and the position between the first boundary line and the second boundary line is recorded as the filling area; first fill the focal level into the filling area of ​​the first parameter position, and then fill the focal center value into the filling area of ​​the second parameter position to obtain the parameter set.

[0030] It should be noted that the first parameter position and the second parameter position in the parameter set are independent structures, and there is a sequence between the first parameter position and the second parameter position to facilitate subsequent identification and analysis of specific parameters in the parameter set.

[0031] S2: Perform validity identification on the parameter set, identify the valid state of the earthquake event, and determine whether to enter the reliability determination mode; validity identification refers to the analysis operation that can determine whether the data referred to in the parameter set is valid, so that it can serve as the basis for subsequent analysis and determination of the reliability of the underground gas storage. When the parameter set does not pass the validity identification, the earthquake event cannot have a negative impact on the reliability of the underground gas storage, and vice versa. The valid state is a representation of the validity identification result, which is used to represent the results of parameter sets that pass and fail the validity identification; the valid state includes a valid pass state and a valid rejection state; when performing validity identification on the parameter set, since the number of parameters in the parameter set is not unique, it is necessary to identify the parameters in the parameter set one by one to ensure that the parameters in the parameter set can be identified in an orderly and accurate manner; the identification method of the valid pass state and the valid rejection state includes In summary: the safety level and safety center value of the underground gas storage are queried through the database, and the digital parts of the safety level and the safety center value are identified, which are recorded as the first safety value and the second safety value respectively; the safety level refers to the minimum earthquake level that can have a negative impact on the reliability of the underground gas storage, and the safety center value refers to the minimum source center value that can have a negative impact on the reliability of the underground gas storage; the digital parts of the first parameter bit and the second parameter bit are marked one by one to obtain the first comparison value and the second comparison value; when the first comparison value is less than the first safety value or the second comparison value is greater than the second safety value, the earthquake event has not reached the degree of negative impact on the underground gas storage, and the earthquake event is identified as an effective rejection state; when the first comparison value is greater than or equal to the first safety value, and the second comparison value is less than or equal to the second safety value, the earthquake event has reached the degree of negative impact on the underground gas storage, and the earthquake event is identified as an effective passing state.

[0032] The reliability determination mode is used to indicate whether to execute the next step operation for different valid states, so as to judge whether to execute the next step; the determination method of whether to enter the reliability determination mode includes: when the valid state is the valid rejection state, the seismic event cannot affect the reliability of the subsequent underground gas storage at this time, and it is determined not to enter the reliability determination mode; when the valid state is the valid passing state, the seismic event can affect the reliability of the subsequent underground gas storage at this time, and it is determined to enter the reliability determination mode.

[0033] S3: Acquire the structural characteristics of the underground gas storage, construct a three-dimensional model of the underground gas storage, and mark the simulation parameter positions in the three-dimensional model. The simulation parameter positions include inner region positions and outer region positions. Structural characteristics refer to the characteristics that can represent the geographical structure information of the underground gas storage, and serve as the basic parameters for the subsequent construction of the three-dimensional model. The three-dimensional model is a virtual model constructed on the basis of the structural characteristics, so that the physical underground gas storage can be processed for simulation. Structural characteristics include geological structure, stratigraphic distribution and lithological characteristics. Geological structure refers to the shape of the rock layers in the crust that are deformed and displaced due to the movement of the crust, and the main types include folds, joints, and faults. Stratigraphic distribution refers to the area of ​​the stratigraphic unit. The distribution and morphological characteristics mainly follow the time sequence, that is, the older the strata are, the older they are; the lithological characteristics refer to the attributes that reflect the characteristics of rocks, and the lithological characteristics include horizontal strata, inclined strata, vertical strata and inverted strata; the geological structure, stratum distribution and lithological characteristics are obtained through geophysical exploration technology survey; the simulation parameter position refers to the position in the three-dimensional model that can be used to provide reliable data for analysis and calculation, and provide data optimization and upgrade effects for subsequent upgrades and optimizations of the three-dimensional model; the simulation parameter position includes inner region position and outer region position; the marking method of inner region position and outer region position includes: querying the geographic data of the underground gas storage through the geographic information system, and building on the geographic data through virtual The contour model is constructed using realistic technology; geographic data refers to the coordinate position, underground depth, width, length and other geographical data of the underground gas storage reservoir; the geological frame, stratigraphic frame and lithological frame are marked separately in the contour model, and the geological structure, stratigraphic distribution and lithological characteristics are imported into the geological frame, bottom frame and lithological frame in turn to generate a three-dimensional model; the geological frame, stratigraphic frame and lithological frame are used to provide imported position limitations for the geological structure, stratigraphic distribution and lithological characteristics respectively; the outer boundary of the underground gas storage reservoir is identified in the three-dimensional model, and a line is drawn along the position of the outer boundary to obtain the regional boundary line, and the area inside the regional boundary line is recorded as the gas storage reservoir area, and the area outside the regional boundary line is recorded as the underground area; in the gas storage reservoir area , using the length of the first spacing value from the regional boundary line as the standard, randomly marking q first marking points; the first spacing value is used to represent the distance between the first marking point and the regional boundary line, ensuring that the first marking point is not too close or too far from the regional boundary line; measuring the distance between two adjacent first marking points one by one, recording them as the first distance value, and recording the two first marking points corresponding to the maximum value of the first distance value as the inner regional position, and obtaining two inner regional positions; in the underground area, using the length of the second spacing value from the regional boundary line as the standard, randomly marking s second marking points; the second spacing value is used to represent the distance between the second marking point and the regional boundary line, ensuring that the second marking point is not too close or too far from the regional boundary line;The distance between two adjacent second marking points is measured one by one, recorded as the second distance value, and the two second marking points corresponding to the maximum value of the second distance value are recorded as the outer area position, and two outer area positions are obtained. ;

[0034] It should be noted that the inner area location can be used to provide an import location for relevant data in the gas storage area, and the outer area location can be used to provide an import location for relevant data in the underground area, thereby achieving accurate import of data in the gas storage area and the underground area.

[0035] S4: Obtain the comprehensive reliability parameters of the underground gas storage under the earthquake event, which include air pressure fluctuation value, maximum temperature value, water level change rate and gap reduction value; comprehensive reliability parameters refer to the diversified data of changes in the underground gas storage under the influence of the earthquake event, which can represent the changes in the underground gas storage and serve as the data basis for the subsequent determination of reliability; comprehensive reliability parameters include air pressure fluctuation value, maximum temperature value, water level change rate and gap reduction value; air pressure fluctuation value refers to the fluctuation amplitude of the air pressure in the gas storage area of ​​the underground gas storage. The larger the air pressure fluctuation value, the larger the fluctuation amplitude of the air pressure in the gas storage area of ​​the underground gas storage, and the greater the negative impact of the earthquake event on the underground gas storage. The lower the reliability of the underground gas storage; the method for obtaining the air pressure fluctuation value includes: taking the preset air pressure cycle as the standard, marking p air pressure moments, and monitoring the real-time air pressure of the underground gas storage at p air pressure moments through the air pressure sensor to obtain p real-time air pressure values; the preset air pressure cycle is used to represent the time span between two adjacent air pressure moments, so as to ensure that a certain time interval is maintained between two adjacent air pressure moments to avoid data adhesion; the p real-time air pressure values ​​are subtracted from the standard air pressure values ​​in turn to obtain p air pressure difference values; the standard air pressure value refers to the air pressure value of the underground gas storage when it is not affected by an earthquake, and is used as the data basis for the subsequent calculation of the air pressure difference value; the air pressure difference value greater than 0 is recorded as a valid difference, and the air pressure difference value is obtained. The effective difference is The effective differences are accumulated and averaged to obtain the pressure fluctuation value; the expression of the pressure fluctuation value is: .

[0036] In the formula, is the air pressure fluctuation value, For the A valid difference.

[0037] The maximum temperature value refers to the maximum temperature in the underground gas storage area. When the maximum temperature value is larger, it means that the temperature in the underground gas storage area is higher, the negative impact of the earthquake event on the underground gas storage is greater, and the reliability of the underground gas storage is lower; the maximum temperature value is obtained by monitoring the temperature sensor deployed in the underground gas storage; the water level change rate refers to the change amplitude of the groundwater level in the underground area of ​​the underground gas storage. When the water level change rate is larger, it means that the change amplitude of the groundwater level in the underground area of ​​the underground gas storage is larger, the negative impact of the earthquake event on the underground gas storage is greater, and the reliability of the underground gas storage is lower; the method for obtaining the water level change rate includes: at time T1, by deploying A water level sensor monitors the real-time water level of groundwater and obtains The first water level value; at time T2, by deploying A water level sensor monitors the real-time water level of groundwater and obtains The second water level value; T2 is the next moment after T1, and the time between T1 and T2 is long enough for the water level sensor to detect the changed data; The second water level values ​​are compared with After subtracting the first water level value, and comparing it with the time from time T1 to time T2, we get The expression of the sub-change rate is: .

[0038] In the formula, For the The rate of change of For the The second water level value, For the The first water level value, is the duration from time T1 to time T2; remove the maximum and minimum values ​​of the sub-rate of change, and The water level change rate is obtained by accumulating the individual change rates and averaging them. The expression of the water level change rate is: .

[0039] In the formula, is the water level change rate, For the The rate of change of the child.

[0040] The gap reduction value refers to the reduction of the geological gaps in the underground area of ​​the underground gas storage. The larger the gap reduction value, the greater the reduction of the geological gaps in the underground area of ​​the underground gas storage, the greater the negative impact of the earthquake event on the underground gas storage, and the lower the reliability of the underground gas storage. The expression of the gap reduction value is: at the same time, by The laser rangefinders in the underground gaps measure the width of the underground gaps respectively and obtain After the preset reduction time, by The laser rangefinders in the underground gaps measure the width of the underground gaps respectively and obtain The preset reduction time refers to the shortest interval between two adjacent monitorings by the laser rangefinder, which can ensure that the laser rangefinder can detect the changed data and ensure the rationality of subsequent data calculations; The initial gap values ​​are After subtracting the terminal gap values, the differences are accumulated and averaged to obtain the gap reduction value; the gap reduction value expression is: .

[0041] In the formula, is the gap reduction value, For the The initial gap value, For the The ending gap value.

[0042] S5: import the comprehensive reliability parameters one by one into the simulation parameter position of the three-dimensional model to generate a gas storage simulation model, calculate the simulation reliability of the gas storage simulation model, and determine the reliability level of the underground gas storage; after obtaining the air pressure fluctuation value, maximum temperature value, water level change rate and gap reduction value, the air pressure fluctuation value, maximum temperature value, water level change rate and gap reduction value can be correspondingly imported into the simulation parameter position of the three-dimensional model to generate a gas storage simulation model, and determine the reliability of the underground gas storage under earthquake events through calculation and analysis of the gas storage simulation model; The method for generating a gas storage simulation model includes: in a three-dimensional model, importing the air pressure fluctuation value and the maximum temperature value one by one into two inner regional positions of the three-dimensional model to obtain two inner simulation positions; marking the two inner simulation positions in turn, recording them as inner position one and inner position two, respectively; importing the water level change rate and the gap reduction value one by one into two outer regional positions of the three-dimensional model to obtain two outer simulation positions; marking the two outer simulation positions in turn, recording them as outer position one and outer position two, respectively; and recording the three-dimensional model with inner position one, inner position two, outer position one and outer position two as a gas storage reservoir simulation model.

[0043] After the gas storage simulation model is generated, it is necessary to calculate the simulation reliability of the gas storage simulation model, so that it can be used as a numerical basis for determining the reliability level of the underground gas storage and used to judge the reliability of the underground gas storage; the calculation method of the simulation reliability includes: configuring the basic parameters of the gas storage simulation model and simulating the operation of the gas storage simulation model; the basic parameters refer to the basic parameters that can drive the gas storage simulation model to perform simulation operation, and as the parameters of the gas storage simulation model itself, it will not affect other subsequently imported parameters in the gas storage simulation model; the basic parameters include operation time, operation interval, operation conditions, etc.; query the gas storage simulation through the timestamp The minimum time taken by the model to perform a complete operation is recorded as the shortest time. Within the shortest time, all operation events of the gas storage simulation model are queried in real time through the model management system, and the operation status of all operation events is identified. The operation event refers to a simulation event in which the gas storage simulation model performs a complete operation, and the operation status is used to indicate whether the operation event is normal. The operation status includes normal status and abnormal status. The operation event with a normal operation status is recorded as a valid event, and the number of valid events is counted to obtain the valid value. The shortest time and the valid value are assigned different weight factors and added to generate the simulation reliability. The expression of simulation reliability is: .

[0044] In the formula, To simulate reliability, For the shortest duration, is a valid value, , is a weight factor greater than 0; , exemplary, is 0.56, It is 0.44.

[0045] The reliability level includes a high reliability level and a low reliability level; a high reliability level means that the reliability value of the gas storage simulation model is large and the reliability of the underground gas storage is high, and a low reliability level means that the reliability value of the gas storage simulation model is small and the reliability of the underground gas storage is low; the method for determining the high reliability level and the low reliability level includes: The preset reliability threshold comparison; the preset reliability threshold is the minimum value of the simulation reliability corresponding to the stable and reliable operation state of the gas storage simulation model, and is used as a numerical basis for identifying high reliability levels and low reliability levels, so as to accurately judge high reliability levels and low reliability levels; the preset reliability threshold is obtained by collecting a large number of minimum values ​​of the simulation reliability corresponding to the stable and reliable operation state of the gas storage simulation model, and then calculating the average value; when Greater than or equal to When , the operation state of the gas storage simulation model is stable and reliable, and the reliability of the underground gas storage is high, then the reliability level of the underground gas storage is determined to be a high reliability level; when Less than At this time, the operation status of the gas storage simulation model is unstable and unreliable, and the reliability of the underground gas storage is low, so the reliability level of the underground gas storage is determined to be a low reliability level.

[0046] It should be noted that when the underground gas storage is determined to be at a high reliability level, the underground gas storage at this time is less affected by the negative impact of earthquake events, is safe and reliable, and can be used for compressed gas energy storage. When the underground gas storage is determined to be at a low reliability level, the underground gas storage at this time is more affected by the negative impact of earthquake events, is unsafe and reliable, and is not recommended for compressed gas energy storage.

[0047] In this embodiment, by obtaining the seismic influence parameters of the earthquake event, and based on the parameter combination criterion, combining the seismic influence parameters into a parameter set, the validity of the parameter set is identified, the effective state of the earthquake event is identified, and it is determined whether to enter the reliability determination mode, the structural characteristics of the underground gas storage reservoir are obtained, a three-dimensional model of the underground gas storage reservoir is constructed, and the simulation parameter positions are marked in the three-dimensional model, the comprehensive reliability parameters of the underground gas storage reservoir under the earthquake event are obtained, the comprehensive reliability parameters are imported one by one into the simulation parameter positions of the three-dimensional model, a gas storage reservoir simulation model is generated, and the simulation reliability of the gas storage reservoir simulation model is calculated to determine the reliability level of the underground gas storage reservoir; Compared with the prior art, by combining the seismic influence parameters into a parameter set , and identify the validity of the parameter set, so that the earthquake events that cannot have a negative impact on the underground gas storage can be eliminated, the analysis threshold for reliability determination can be improved, and the workload of reliability analysis can be reduced. At the same time, combined with the gas storage simulation model, the obtained comprehensive reliability parameters can be simulated and processed, so as to truly and accurately analyze the negative impact of the earthquake event on the underground gas storage, and give the real reliability analysis results of the underground gas storage, effectively realizing the accurate and rapid determination of the reliability of the underground gas storage, avoiding the high burden and inaccurate calculation caused by the traditional real-time monitoring and analysis and calculation through multiple sensors, and playing a role in ensuring the safe and stable operation of the subsequent compressed gas energy storage underground gas storage.

[0048] Example 2: Please refer to Figure 2As shown, the part not described in detail in this embodiment is described in the first embodiment, and a reliability determination system for a compressed gas energy storage underground gas storage under earthquake action is provided, which is applied to a monitoring server and is used to implement a reliability determination method for a compressed gas energy storage underground gas storage under earthquake action, including a parameter set module, a mode determination module, a model building module, a parameter acquisition module and a reliability determination module, wherein each module is connected via a wired or wireless network; the parameter set module is used to obtain the earthquake influence parameters of the earthquake event, and based on the parameter combination criterion, the earthquake influence parameters are combined into a parameter set, and the earthquake influence parameters include the earthquake level and the focal center value; the mode determination module is used to identify the validity of the parameter set, identify the valid state of the earthquake event, and determine whether to enter Reliability determination mode, effective states include effective passing state and effective rejecting state; model construction module, used to obtain structural characteristics of underground gas storage, construct a three-dimensional model of underground gas storage, and mark simulation parameter positions in the three-dimensional model, the simulation parameter positions include inner area positions and outer area positions; parameter acquisition module, used to obtain comprehensive reliability parameters of underground gas storage under earthquake events, the comprehensive reliability parameters include air pressure fluctuation value, maximum temperature value, water level change rate and gap reduction value; reliability determination module, used to import comprehensive reliability parameters into the simulation parameter positions of the three-dimensional model one by one, generate a gas storage simulation model, calculate the simulation reliability of the gas storage simulation model, and determine the reliability level of the underground gas storage, the reliability level includes high reliability level and low reliability level.

[0049] Example 3: Please refer to Figure 3 As shown, this embodiment discloses an electronic device, including a processor and a memory; wherein the memory stores a computer program that can be called by the processor; the processor executes the method for determining the reliability of an underground gas storage reservoir with compressed gas energy storage under earthquake action by calling the computer program stored in the memory.

[0050] Since the electronic device introduced in this embodiment is an electronic device used to implement the reliability determination method of the underground gas storage reservoir with compressed gas energy storage under earthquake in the first embodiment of this application, based on the reliability determination method of the underground gas storage reservoir with compressed gas energy storage under earthquake introduced in the embodiment of this application, the technical personnel of this field can understand the specific implementation method of the electronic device of this embodiment and its various variations, so how the electronic device implements the method in the embodiment of this application is not described in detail here. As long as the technical personnel of this field implement the electronic device used by the reliability determination method of the underground gas storage reservoir with compressed gas energy storage under earthquake in the embodiment of this application, it belongs to the scope of protection of this application.

[0051] Example 4: Please refer to Figure 4As shown, this embodiment discloses a computer-readable storage medium on which an erasable computer program is stored; when the computer program is run, the reliability determination method of an underground gas storage reservoir with compressed gas energy storage under earthquake action is implemented.

[0052] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reliability determination method for an underground gas storage reservoir with compressed gas energy storage under earthquake action, applied to a monitoring server, characterized in that: include: S1: obtaining earthquake impact parameters of earthquake events, and combining the earthquake impact parameters into a parameter set based on a parameter combination criterion, wherein the earthquake impact parameters include earthquake magnitude and focal center value; S2: Identify the validity of the parameter set, identify the valid state of the earthquake event, and determine whether to enter the reliability determination mode. The valid state includes the valid pass state and the valid reject state. If the reliability determination mode is entered, execute S3; if the reliability determination mode is not entered, repeat S1-S2; S3: obtaining structural characteristics of the underground gas storage, constructing a three-dimensional model of the underground gas storage, and marking simulation parameter positions in the three-dimensional model, where the simulation parameter positions include inner region positions and outer region positions; S4: Obtain comprehensive reliability parameters of underground gas storage under earthquake events, including pressure fluctuation value, maximum temperature value, water level change rate and gap reduction value; S5: The comprehensive reliability parameters are imported one by one into the simulation parameter positions of the three-dimensional model to generate a gas storage simulation model, and the simulation reliability of the gas storage simulation model is calculated to determine the reliability level of the underground gas storage, which includes a high reliability level and a low reliability level.

2. The reliability determination method of the compressed gas energy storage underground gas storage under earthquake action according to claim 1 is characterized in that: The method for obtaining the focal center value comprises: The coordinate value of the epicenter of the earthquake event is monitored by the seismic network, and the point where the coordinate value of the epicenter is located is marked on the electronic map to obtain the epicenter point; The coordinates of the underground gas storage are queried through the geographic information system, and the points where the coordinates of the underground gas storage are located are marked on the electronic map to obtain the central point of the gas storage; The safety impact distance of the underground gas storage is found through the technical parameter table, and a circle is drawn with the center point of the gas storage as the center and the safety impact distance as the radius to obtain the safety impact circle; Mark out the safety impact circle at equal angles The distance measurement points are measured one by one, and the location of the center of the earthquake source is measured to The distance between the measuring points is obtained The sub-distance value; Will The sub-distance values ​​are accumulated and averaged to obtain the focal center value; The expression of the focal center value is: ； In the formula, is the focal center value, For the The sub-distance value.

3. The reliability determination method of the compressed gas energy storage underground gas storage under earthquake action according to claim 2 is characterized in that: The parameter combination criterion is: first fill the first parameter bit, then fill the second parameter bit; The combination methods of parameter collection include: A blank basic set is selected from the set database, two independent parameter positions are established in the basic set, and the two parameter positions are marked as a first parameter position and a second parameter position in sequence; Draw a first boundary line and a second boundary line at the front end and the rear end of the first parameter position and the second parameter position respectively, and record the position between the first boundary line and the second boundary line as a filling area; First, fill the source level into the filling area of ​​the first parameter position, and then fill the source center value into the filling area of ​​the second parameter position to obtain a parameter set.

4. The reliability determination method of the compressed gas energy storage underground gas storage under earthquake action according to claim 3 is characterized in that: The identification method of the effective pass state and the effective reject state includes: The safety level and safety center value of the underground gas storage are queried through the database, and the digital parts of the safety level and the safety center value are identified and recorded as the first safety value and the second safety value respectively; Mark the digital parts of the first parameter bit and the second parameter bit one by one to obtain a first comparison value and a second comparison value; When there is a first comparison value less than a first safety value or a second comparison value greater than a second safety value, identifying the earthquake event as a valid rejection state; When the first comparison value is greater than or equal to the first safety value, and the second comparison value is less than or equal to the second safety value, the earthquake event is identified as a valid passing state; The determination method of whether to enter the reliability determination mode includes: When the valid state is the valid rejection state, it is determined not to enter the reliability determination mode; When the valid state is the valid pass state, it is determined to enter the reliability determination mode.

5. The reliability determination method of the compressed gas energy storage underground gas storage under earthquake action according to claim 4 is characterized in that: The structural characteristics include geological structure, stratigraphic distribution and lithological characteristics; The marking methods of the inner region and the outer region include: The geographic data of the underground gas storage reservoir is queried through the geographic information system, and the contour model is constructed through virtual reality technology based on the geographic data; Mark the geological frame, stratigraphic frame and lithological frame in the contour model respectively, and import the geological structure, stratigraphic distribution and lithological characteristics into the geological frame, bottom frame and lithological frame in turn to generate a three-dimensional model; The outer boundary of the underground gas storage is identified in the three-dimensional model, and a line is drawn along the location of the outer boundary to obtain a regional boundary line, and the area inside the regional boundary line is recorded as the gas storage area, and the area outside the regional boundary line is recorded as the underground area; In the gas storage area, q first marking points are randomly marked based on the length of the first spacing value from the area boundary line; The distances between two adjacent first marking points are measured one by one, recorded as first distance values, and the two first marking points corresponding to the maximum values ​​of the first distance values ​​are recorded as inner area positions, to obtain two inner area positions; In the underground area, s second marking points are randomly marked based on the length of the second spacing value from the area boundary line; The distance between two adjacent second marking points is measured one by one and recorded as the second distance value, and the two second marking points corresponding to the maximum value of the second distance value are recorded as the outer area positions to obtain two outer area positions.

6. The reliability determination method of the compressed gas energy storage underground gas storage under earthquake action according to claim 5 is characterized in that: The method for obtaining the air pressure fluctuation value comprises: Using the preset air pressure cycle as a standard, p air pressure moments are marked, and the real-time air pressure of the underground gas storage at the p air pressure moments is monitored by an air pressure sensor to obtain p real-time air pressure values; Subtract the p real-time air pressure values ​​from the standard air pressure value in turn to obtain p air pressure difference values; Record the pressure difference greater than 0 as the effective difference, and obtain The effective difference is The effective differences are accumulated and averaged to obtain the pressure fluctuation value; The expression of air pressure fluctuation value is: ； In the formula, is the air pressure fluctuation value, For the A valid difference.

7. The reliability determination method of an underground gas storage reservoir for compressed gas energy storage under earthquake action according to claim 6 is characterized in that: The method for obtaining the water level change rate includes: At time T1, by deploying A water level sensor monitors the real-time water level of groundwater and obtains The first water level value; At time T2, by deploying A water level sensor monitors the real-time water level of groundwater and obtains The second water level value; Will The second water level values ​​are compared with After subtracting the first water level value, and comparing it with the time from time T1 to time T2, we get The rate of change of individual The expression of the sub-rate of change is: ； In the formula, For the The rate of change of For the The second water level value, For the The first water level value, It is the duration from time T1 to time T2; Remove the maximum and minimum values ​​of the sub-rates and The change rates of each seed are accumulated and averaged to obtain the water level change rate; The expression of water level change rate is: ； In the formula, is the water level change rate, For the The rate of change of the child.

8. The reliability determination method of an underground gas storage reservoir for compressed gas energy storage under earthquake action according to claim 7 is characterized in that: The expression of the gap reduction value is: At the same time, by The laser rangefinders in the underground gaps measure the width of the underground gaps respectively and obtain An initial gap value; After the preset reduction time, The laser rangefinders in the underground gaps measure the width of the underground gaps respectively and obtain The termination gap value; Will The initial gap values ​​are After subtracting the final gap values, the differences are accumulated and averaged to obtain the gap reduction value; The expression of the gap reduction value is: ； In the formula, is the gap reduction value, For the The initial gap value, For the The ending gap value.

9. The reliability determination method of an underground gas storage reservoir for compressed gas energy storage under earthquake action according to claim 8 is characterized in that: The method for generating the gas storage simulation model comprises: In the three-dimensional model, the pressure fluctuation value and the maximum temperature value are imported into two inner region positions of the three-dimensional model one by one to obtain two inner simulation positions; The two inner simulation positions are marked in turn, and are recorded as inner position 1 and inner position 2 respectively; The water level change rate and the gap reduction value are imported into two outer region positions of the three-dimensional model one by one to obtain two outer simulation positions; The two external analog positions are labeled in turn, and are recorded as external position 1 and external position 2 respectively; The three-dimensional model with inner position 1, inner position 2, outer position 1 and outer position 2 is recorded as the gas storage simulation model.

10. The reliability determination method of an underground gas storage reservoir for compressed gas energy storage under earthquake action according to claim 9 is characterized in that: The calculation method of the simulation reliability includes: Configure the basic parameters of the gas storage simulation model and simulate and run the gas storage simulation model; The minimum time taken by the gas storage simulation model to complete a complete operation is queried through the timestamp and recorded as the shortest time; In the shortest possible time, all operation events of the gas storage simulation model are queried in real time through the model management system, and the operation status of all operation events is identified; Record the running events with normal running status as valid events, and count the number of valid events to obtain the valid value; The shortest duration and the effective value are assigned different weight factors and added together to generate the simulation reliability; The expression of simulation reliability is: ； In the formula, To simulate reliability, For the shortest duration, is a valid value, , is a weight factor greater than 0; Methods for determining high reliability level and low reliability level include: Simulate reliability The preset reliability threshold Compare; when Greater than or equal to When , the reliability level is determined to be a high reliability level; when Less than The reliability level is determined to be a low reliability level.

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