A method for determining formation integrity based on digital drilling, along with a readable storage medium and device.

Abstract

This invention discloses a method for determining the integrity of formations based on digital drilling, along with a readable storage medium and device, belonging to the technical field of stratigraphic lithology and geological structure classification. It utilizes the fluctuations in the drilling parameter variation curves to reflect the rock mechanical properties of strata and weak structural planes, as well as the magnitude of the differences in rock mechanical properties between them, to propose a stratigraphic sequence S. n The fluctuation ratio f(S) in the target rock mass strata n ) and rock strata sequence S n The quantity ratio of g(S) in the target rock mass strata n The concept of f(S) is used to... n ) / g(S n This quantitative evaluation index, used as a basis for judging the strength of stratigraphic integrity, comprehensively considers the impact of the number and strength of weak structural surfaces and the number of strata interfaces on the stability of geological structures. Compared with the traditional practice of relying solely on the number of weak structural surfaces such as faults, fissures, and weak interlayers in strata as a single indicator of geological structural stability, this approach is more scientific and accurate.

Description

Technical Field

[0001] This invention relates to the field of stratigraphic lithology and geological structure classification technology, specifically to a method for determining stratigraphic integrity based on digital drilling, and a readable storage medium and device. Background Technology

[0002] During the construction of pumped storage power stations, the stability of the underground geological structure is a key issue that engineers focus on. Stratigraphic integrity refers to the degree of uniformity of the strata to which the underground structure is located, and it is related to the development of geological structural surfaces, including faults, fissures, and weak interlayers. In the site selection of underground structures, especially in the early exploration and site selection practice for pumped storage power station underground powerhouses, the industry often uses stratigraphic integrity as a qualitative reference for judging the stability of the underground geological structure. The weaker the stratigraphic integrity, or the more developed the weak structural surfaces, the worse the stability of the underground geological structure. Therefore, the industry typically avoids selecting sites in these stratigraphic layers when choosing the location for the underground powerhouse.

[0003] Since the determination of stratigraphic integrity is based on the actual underground stratigraphic conditions and geological structure, and the determination of stratigraphic conditions and geological structure depends on accurate geological exploration results; core drilling and borehole imaging are important technical means to accurately obtain exploration results of stratigraphic conditions and geological structure, but their high economic cost further limits the engineering application of stratigraphic integrity in judging the stability of underground geological structures.

[0004] Digital drilling technology is a cutting-edge technology in the field of geological exploration. It utilizes digital drilling equipment to acquire, monitor, and analyze various drilling parameters during the drilling process, such as drilling speed, rotational speed, torque, impact force, and propulsion force. Through the integration and statistical analysis of these drilling parameters, it has been widely applied in the field of stratigraphic lithology and geological structure classification, accumulating a considerable amount of research results and practical experience. This undoubtedly provides another efficient and economical method for determining stratigraphic integrity. However, there is currently a lack of methods in the industry for determining stratigraphic integrity based on digital drilling results. Summary of the Invention

[0005] Based on the above-mentioned technical status and problems, the present invention provides a method for judging formation integrity based on digital drilling, as well as a readable storage medium and device, which can scientifically judge the formation integrity using digital drilling results.

[0006] This invention is implemented as follows: a method for determining formation integrity based on digital drilling, comprising the following steps:

[0007] Step 1, Obtaining Drilling Parameters: Drilling is carried out using a drilling rig equipped with a DPM system. Drilling parameters are collected during the drilling process. The collected drilling parameter dataset is processed to obtain the net drilling parameter change curve.

[0008] Step 2, stratigraphic geological structure division: Select the target rock mass stratum from the stratigraphic geological structure division results, and divide the different stratigraphic geological structures of the target rock mass stratum based on the fluctuations of the drilling parameter variation curve;

[0009] Step 3, Selection and processing of drilling parameters: Obtaining n strata sequences S in the target rock mass. n m weak interlayer sequences W m and rock strata sequence S n The corresponding thickness TS n Peak mean PS n Trough Mean VS n , weak interlayer sequence W m The corresponding thickness TW m Peak mean PW m Trough mean VW m ;

[0010] Step 4, Determination of stratigraphic integrity evaluation elements: Determine the stratigraphic sequence S n The fluctuation ratio f(S) in the target rock mass strata n ) and rock strata sequence S n The quantity ratio of g(S) in the target rock mass strata n );

[0011] Step 5, Setting the formation integrity threshold: Set the formation integrity threshold sequence θ i ={θ1, θ2, ..., θ n}, where from θ1 to θ n The numerical values ​​decrease sequentially.

[0012] Step 6, Determine the integrity of the formation: f(S) n ) / g(S n When θ ≥ θ1, the formation integrity is level one; θ2 ≤ f(S) n ) / g(S n When θ<1, the formation integrity is grade II; θ3≤f(S) n ) / g(S n When θ < θ2, the stratigraphic integrity is level three; ...; and so on; among which, the stratigraphic integrity gradually decreases from level one to level n+1.

[0013] Step 7: Select the target rock mass stratum with high strata integrity as the construction area for underground structures, including the underground powerhouse.

[0014] Further, in step 1, the collected drilling parameter dataset is processed to obtain the drilling parameter variation curves of the drilling parameters and the drilling depth during the net drilling process. Specifically, this includes removing the drilling parameter variation curves during the drilling rig's no-load push, drilling rig retraction, drill pipe tension, and standby processes, and obtaining the drilling parameter variation curves of the drilling parameters and the drilling depth D during the net drilling process.

[0015] Furthermore, in step 2, based on the fluctuations of the drilling parameter variation curve, the geological structure of different strata in the target rock mass is divided. Specifically, this includes: selecting the drilling parameter variation curve of drilling speed V with drilling depth D, and dividing the geological structure of the strata into several relatively stable and fluctuating segments according to the peak and trough changes of the drilling speed V variation curve. Among them, the segments in the drilling speed V variation curve where the peak and trough values ​​suddenly increase are the segments where weak interlayers are located.

[0016] Furthermore, in step 4, the rock strata sequence S n The fluctuation ratio f(S) in the target rock mass strata n The calculation formula is: f(S) n )=∑(TS n ×(PS n +VS n ))÷(∑(TS n ×(PS n +VS n ))+∑(TW m ×(PW m +VW m ))), rock strata sequence S n The quantity ratio of g(S) in the target rock mass strata n The calculation formula is: g(S) n ) = n / (m+n).

[0017] Furthermore, step 5, setting a stratigraphic integrity threshold, specifically includes: based on practical experience and production conditions, or based on the stratigraphic sequence S. n and weak interlayer sequence W m A comprehensive assessment is made based on the actual rock stratigraphic characteristics, including the corresponding rock type and uniaxial compressive strength, to establish a stratigraphic integrity threshold sequence θ. i The number and size of thresholds.

[0018] Further, in step 5, the formation integrity threshold sequence is set to θ. i ={1, 1 / 3, 1 / 10};

[0019] Furthermore, in step 6, the method for determining the integrity of the formation is specifically as follows: f(S) n ) / g(Sn When f(S) ≥ 1, the stratigraphic integrity is level one; 1 / 3 ≤ f(S) n ) / g(S n When ) < 1, the stratigraphic integrity is grade II; 1 / 10 ≤ f(S) n ) / g(S n When f(S) < 1 / 3, the stratigraphic integrity is level three; n ) / g(S n When the ratio is less than 1 / 10, the stratigraphic integrity is level four.

[0020] A computer-readable storage medium includes a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to perform the aforementioned method for determining formation integrity based on digital drilling.

[0021] A computer device includes a memory, a processor, and a program stored in the memory and executable thereon, wherein the program, when executed by the processor, implements the steps of the above-described method for determining the integrity of formations based on digital drilling.

[0022] The advantages and technical effects of this invention are as follows:

[0023] 1. Utilizing the fluctuations in the drilling parameter variation curves to reflect the rock mechanical properties of strata and weak structural planes, as well as the magnitude of the differences in rock mechanical properties between them, a strata sequence S is proposed. n The fluctuation ratio f(S) in the target rock mass strata n The concept of faults, fissures, and weak interlayers, as indicators for judging stratigraphic integrity, means that when judging stratigraphic integrity, the weak structural surfaces such as faults, fissures, and weak interlayers are not only judged by the number of faults, fissures, and weak interlayers, but also by the rock mechanical strength of the faults, fissures, and weak interlayers. This helps to scientifically judge the adverse effects of one or more weak structural surfaces on stratigraphic integrity and the stability of underground geological structures.

[0024] 2. Propose the rock strata sequence S n The quantity ratio of g(S) in the target rock mass strata n The concept of ) is used to incorporate the rock strata interface into the scope of stratigraphic integrity considerations, making the evaluation of the stability of underground geological structures more comprehensive.

[0025] 3. Propose f(S) through quantification. n ) / g(S nThis quantitative evaluation index, serving as a basis for judging the strength of stratigraphic integrity, reveals the inherent geological connection between the number and strength of weak structural surfaces and the number of strata interfaces. It comprehensively considers the number, strength, and number of strata interfaces to judge the overall impact on the stability of geological structures. Compared with the traditional practice of relying solely on the number of weak structural surfaces such as faults, fissures, and weak interlayers in strata as a single indicator of geological structure stability, this approach is more scientific and accurate. It has strong guiding significance for the site selection and engineering evaluation of underground structures, especially underground powerhouses. Attached Figure Description

[0026] Figure 1 A schematic diagram of the stratigraphic geological structure of the target rock mass.

[0027] Figure 2 A schematic diagram illustrating the methods for determining the thickness, mean peak value, and mean trough value of a rock stratum sequence;

[0028] Figure 3 A schematic diagram illustrating the method for determining the thickness, mean peak value, and mean trough value corresponding to a weak interlayer sequence. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] First, the relevant concepts involved in this invention will be explained.

[0031] Stratigraphic integrity refers to the degree of uniformity of the strata to which the underground structure is built. It is related to the development of geological structural surfaces in the strata, including weak structural surfaces such as faults, fissures, and weak interlayers. The weaker the strata integrity, or the more developed the weak structural surfaces, the worse the stability of the underground geological structure.

[0032] The strata sequence in the target rock mass refers to the sequence of one or more relatively stable strata, whether adjacent or non-adjacent, existing within the target rock mass strata; the weak interlayer sequence in the target rock mass strata refers to the sequence of one or more weak interlayers, located between two relatively stable strata, including weak structural planes such as faults, fissures, and weak interlayers.

[0033] The thickness corresponding to a stratum sequence refers to the distance between the upper and lower bedding planes of a specific stratum within the stratum sequence in the depth direction. The thickness corresponding to a weak interlayer sequence refers to the distance between the upper and lower bedding planes of a specific weak interlayer within the weak interlayer sequence in the depth direction. The mean peak and mean trough values ​​corresponding to a stratum sequence refer to the average of all peak values ​​and the average of all trough values ​​corresponding to a specific stratum in the stratum sequence as shown in the drilling parameter variation curve. Similarly, the mean peak and mean trough values ​​corresponding to a weak interlayer sequence refer to the average of all peak values ​​and the average of all trough values ​​corresponding to a specific weak interlayer within the weak interlayer sequence as shown in the drilling parameter variation curve. It should be noted that the mean peak and mean trough values ​​can be calculated by summing the peak (or trough) values ​​and dividing by the number of peaks (or troughs), or by obtaining an approximate value using the median method. These are conventional statistical methods and will not be elaborated upon here.

[0034] The fluctuation ratio of a stratum sequence in the target rock mass refers to the proportion of the fluctuation amplitude of the drilling parameter variation curve corresponding to the stratum sequence in the total fluctuation amplitude of the drilling parameter variation curve corresponding to the target rock mass, including the stratum sequence and the weak interlayer sequence (where fluctuation amplitude refers to the change amplitude of the fluctuation curve of a certain stratum in the drilling parameter variation curve); the number ratio of a stratum sequence in the target rock mass refers to the ratio of the number of strata corresponding to the stratum sequence in the target rock mass, including the stratum sequence and the weak interlayer sequence, to the sum of the number of strata and the number of weak interlayers in the target rock mass.

[0035] Example 1

[0036] The formation integrity determination method based on digital drilling of the present invention includes the following steps:

[0037] Drilling parameter acquisition: Drilling is carried out using an impact drilling rig equipped with a DPM system. The drilling parameters are collected during the drilling process. The drilling parameter change curves during the drilling process are removed when the drilling rig is pushing without drilling, retracting, loosening the drill rod, and waiting. The drilling parameter change curves as a function of drilling depth D during the net drilling process are obtained.

[0038] Stratigraphic and geological structure classification: Select the target rock mass strata from the stratigraphic and geological structure classification results, and classify the different stratigraphic and geological structures of the target rock mass strata based on the fluctuations of the drilling parameter variation curve;

[0039] Based on the fluctuations of the drilling parameter variation curve, the geological structure of different strata in the target rock mass is divided. Specifically, this includes: selecting the drilling parameter variation curve of drilling speed V with drilling depth D, and dividing the geological structure of the strata into several relatively stable and fluctuating sections according to the peak and trough changes of the drilling speed V variation curve. Among them, the section where the peak and trough values ​​of the drilling speed V variation curve suddenly increase is the section where the weak interlayer is located.

[0040] Selection of drilling parameter values: Obtain n strata sequences S in the target rock mass. n m weak interlayer sequences W m ;

[0041] The specific process of dividing the above n rock strata sequences Sn and m weak interlayer sequences Wm can be found in [link to relevant documentation]. Figure 1 As shown, the rock strata sequence Sn is divided into a total of 6 rock strata, and the weak interlayer sequence Wm is divided into a total of 3 weak interlayers.

[0042] Numerical processing of drilling parameters: obtaining the rock formation sequence S n The corresponding thickness TS n Peak mean PS n Trough Mean VS n The thickness corresponding to the rock stratum sequence Sn is the depth corresponding to the interface where the drilling speed V change curve of each rock stratum in the rock stratum sequence Sn changes abruptly (the method for dividing the abrupt interface adopts the conventional operation calibration method in the existing technology, which will not be elaborated here). The specific process of the mean peak and mean trough corresponding to the rock stratum sequence Sn can be found in [link to relevant documentation]. Figure 2 The method shown involves creating a calibration line based on the median of the peak (or trough) values ​​to represent the mean (or trough) value. It is conceivable that the mean (or trough) value can also be obtained by summing the values ​​and then calculating the average. This calculation process is a conventional method in the existing technology and will not be elaborated here.

[0043] Similarly, the weak interlayer sequence W can be obtained in the same way. m The corresponding thickness TW m Peak mean PW m Trough mean VW m The specific process can be seen in the following figures. Figure 3 The determination method shown.

[0044] Example 2

[0045] The technical solution and data processing process of this invention will be explained in detail below using a pumped storage power station project in Heilongjiang Province as an example.

[0046] Table 1 Drilling speed parameters of target rock mass strata at a pumped storage power station in Heilongjiang Province

[0047]

[0048]

[0049] The first target rock mass consists of three rock strata sequences S. n Given {S1, S2, S3}, a weak interlayer sequence {W1}, and the thickness TS corresponding to the strata sequence {S1, S2, S3}. n The mean values ​​of the peaks are {4.84, 2.51, 2.66}, the mean values ​​of the troughs are {15.03, 14.90, 16.23}, and the mean values ​​of the troughs are {6.24, 5.19, 6.76}, indicating a weak interlayer sequence W. m The corresponding thickness {0.68} and peak mean PW m {23.27}, trough mean VW m {15.08}.

[0050] The statistical calculation results are shown in Tables 2 and 3.

[0051]

[0052] Determination of stratigraphic integrity evaluation elements: Determining the stratigraphic sequence S n The fluctuation ratio f(S) in the target rock mass strata n ) and rock strata sequence S n The quantity ratio of g(S) in the target rock mass strata n );

[0053] Rock strata sequence S n The fluctuation ratio f(S) in the target rock mass strata n The calculation formula is f(S) n )=∑(TS n ×(PS n +VS n ))÷(∑(TS n ×(PS n +VS n ))+∑(TW m ×(PW m +VW m ))), rock strata sequence S n The quantity ratio of g(S) in the target rock mass strata n The calculation formula is: g(S) n ) = n / (m+n).

[0054] TS1×(PS1+VS1)=102.91;

[0055] TS2×(PS2+VS2)=50.44;

[0056] TS3×(PS3+VS3)=61.14;

[0057] TW1×(PW1+VW1)=26.08;

[0058] ∑(TS n ×(PS n +VS n ))=214.48;

[0059] ∑(TW m ×(PW m +VW m )) = 26.078;

[0060] Rock strata sequence S n The fluctuation ratio f(S) in the first target rock mass stratum n The calculation formula is f(S) n ) = 0.89;

[0061] g(S n )=n / (m+n)=3 / (3+1))=3 / 4=0.75;

[0062] f(S n ) / g(S n ) = 0.89 / 0.75 = 1.19;

[0063] f(S n ) / g(S n The strength of stratigraphic integrity is reflected through numerical quantification, f(S) n ) / g(S n The higher the value of ), the higher the degree of formation integrity.

[0064] Since the formation integrity level reflects the relative level of formation integrity at different depths in the same area during the analysis and processing of the same drilling parameters, it does not require absolute accuracy of the values. Therefore, the number and size of formation integrity thresholds can be set according to experience and actual project needs. In general, it can be comprehensively judged by combining the actual rock formation characteristics, including rock type and uniaxial compressive strength, obtained from regional geological surveys. In addition, it can also be verified and adjusted through rock drilling core sampling results.

[0065] Based on the practical experience of project technicians in using digital drilling to assess rock stability, a formation integrity threshold sequence θ is set. i ={1, 1 / 3, 1 / 10} is a more reasonable and practical choice, i.e., f(S) n ) / g(S n When f(S) ≥ 1, the stratigraphic integrity is level one; 1 / 3 ≤ f(S)n ) / g(S n When ) < 1, the stratigraphic integrity is grade II; 1 / 10 ≤ f(S) n ) / g(S n When f(S) < 1 / 3, the stratigraphic integrity is level three; n ) / g(S n When ) < 1 / 10, the stratigraphic integrity is level four. The stratigraphic position f(S) of the first target rock mass is located at... n ) / g(S n Since ) = 1.19 > 1, the stratigraphic integrity is classified as Level 1, belonging to the target rock mass layer with relatively high stratigraphic integrity. Using the same method, the second target rock mass layer f(S) within the depth range of 17.3-28.5m at this location was obtained. n ) / g(S n The value is 0.96, which is less than the value of f(S) of the first target rock mass stratum. n ) / g(S n The geological integrity is classified as level two. Therefore, all other things being equal, the first target rock mass layer is preferentially selected as the construction area for underground structures, including the underground powerhouse. Using f(S) n ) / g(S n Comparing the strata integrity and relative stability at different depths in the same region is more scientific and reasonable than the usual evaluation method that uses only the number of weak interlayers, and has achieved remarkable results.

[0066] Meanwhile, for strata with low stratigraphic integrity, their geological structural stability is relatively low, and relevant areas and strata should be avoided during the initial site selection for projects.

[0067] Example 3: A computer-readable storage medium comprising a stored computer program, wherein, when the computer program is executed, it controls the device containing the computer-readable storage medium to perform the methods described in Example 1 or 2.

[0068] A computer device includes a memory, a processor, and a program stored in the memory and executable thereon, wherein the program, when executed by the processor, implements the steps of the method described in Embodiment 1 or 2 above.

[0069] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented, in whole or in part, as a computer program product, the computer program product includes one or more computer instructions. When the computer program instructions are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape) or an optical medium.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for determining the integrity of formations based on digital drilling, characterized in that, The following steps are involved: Step 1, Obtaining Drilling Parameters: Drilling is carried out using a drilling rig equipped with a DPM system. Drilling parameters are collected during the drilling process. The collected drilling parameters are processed to obtain the changing curves of drilling parameters during the net drilling process. Step 2, stratigraphic geological structure division: Select the target rock mass stratum from the stratigraphic geological structure division results, and divide the different stratigraphic geological structures of the target rock mass stratum based on the fluctuations of the drilling parameter variation curve; The method of dividing the geological structure of different strata in the target rock mass based on the fluctuation of the drilling parameter variation curve includes: selecting the drilling parameter variation curve of drilling speed V with drilling depth D, and dividing the geological structure of the strata into several relatively stable fluctuation sections according to the peak and trough changes of the drilling speed V variation curve. Among them, the section in the drilling speed V variation curve where the peak value and trough value suddenly increase is the section where the weak interlayer is located. Step 3, Selection and processing of drilling parameters: Obtaining n strata sequences S in the target rock mass. n m weak interlayer sequences W m and rock strata sequence S n The corresponding thickness TS n Peak mean PS n Trough Mean VS n , weak interlayer sequence W m The corresponding thickness TW m Peak mean PW m trough mean VW m ; Step 4, Determination of stratigraphic integrity evaluation elements: Determine the stratigraphic sequence S n The fluctuation ratio f(S) in the target rock mass strata n ) and rock strata sequence S n The quantity ratio of g(S) in the target rock mass strata n ); Rock strata sequence S n The fluctuation ratio f(S) in the target rock mass strata n The calculation formula is: f(S) n )=∑(TS n ×(PS n +VS n ))÷(∑(TS n ×(PS n +VS n ))+∑(TW m ×(PW m +VW m ))), rock strata sequence S n The quantity ratio of g(S) in the target rock mass strata n The calculation formula is: g(S) n ) = n / (m+n); Step 5, Setting the formation integrity threshold: Set the formation integrity threshold sequence θ i ={θ1, θ2, ..., θ n }, where from θ1 to θ n The numerical values ​​decrease sequentially. Step 6, Determine the integrity of the formation: f(S) n ) / g(S n When θ ≥ θ1, the formation integrity is level one; θ2 ≤ f(S) n ) / g(S n When θ<1, the formation integrity is grade II; θ3≤f(S) n ) / g(S n When θ < θ2, the stratigraphic integrity is level three; ...; and so on; among which, the stratigraphic integrity gradually decreases from level one to level n+1. Step 7: Select the target rock mass stratum with high strata integrity as the construction area for underground structures, including the underground powerhouse.

2. The method for determining formation integrity based on digital drilling according to claim 1, characterized in that, Step 1 involves processing the collected drilling parameters to obtain the drilling parameter variation curves during the net drilling process. Specifically, this includes removing the drilling parameter variation curves during rig idling, rig retraction, drill pipe tensioning, and standby processes, and obtaining the drilling parameter variation curves as the drilling depth D changes during the net drilling process.

3. The method for determining formation integrity based on digital drilling according to claim 1, characterized in that, Step 5, setting a stratigraphic integrity threshold, specifically includes: based on practical experience and production conditions, or based on the stratigraphic sequence S. n and weak interlayer sequence W m A comprehensive assessment is made based on the actual rock stratigraphic characteristics, including the corresponding rock type and uniaxial compressive strength, to establish a stratigraphic integrity threshold sequence θ. i The number and size of thresholds.

4. The method for determining formation integrity based on digital drilling according to claim 1, characterized in that, In step 5, the formation integrity threshold sequence is set to θ. i ={1, 1 / 3, 1 / 10}; the specific method for determining the integrity of the stratigraphy in step 6 is: f(S n ) / g(S n When f(S) ≥ 1, the stratigraphic integrity is level one; 1 / 3 ≤ f(S) n ) / g(S n When ) < 1, the stratigraphic integrity is grade II; 1 / 10 ≤ f(S) n ) / g(S n When f(S) < 1 / 3, the stratigraphic integrity is level three; n ) / g(S n When the ratio is less than 1 / 10, the stratigraphic integrity is level four.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program, wherein, when the computer program is executed, it controls the device on which the computer-readable storage medium is located to perform the method as described in any one of claims 1-4.

6. A computer device, characterized in that, The computer device includes a memory, a processor, and a program stored in and executable on the memory, the program being executed by the processor to implement the steps of the method as described in any one of claims 1-4.

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