A method, system, and terminal equipment for identifying artificially inflated fracture types in conglomerate cores.

Abstract

This invention discloses a method, system, and terminal device for identifying artificially inflated fracture types in conglomerate cores. The method includes the following steps: obtaining the cross-gravel ratio and the maximum amplitude ratio of the two edges of the fracture to be identified; obtaining different types of fracture discrimination values ​​using the cross-gravel ratio, the maximum amplitude ratio of the two edges, and pre-established discrimination formulas for different types of fractures; and determining the type of the fracture to be identified by comparing the different types of fracture discrimination values. This method is cost-effective, convenient, efficient, and accurate, providing fundamental data for analyzing fracturing effects and understanding fracture propagation patterns.

Description

Technical Field

[0001] This invention belongs to the field of oil and gas field development technology, and relates to a method, system and terminal equipment for identifying artificially inflated fracture types in conglomerate cores. Background Technology

[0002] In recent years, the development method combining horizontal wells and volumetric fracturing has been widely adopted for crude oil extraction. Previously, fracturing effectiveness and fracture network characterization relied mainly on indirect methods such as microseismic monitoring and numerical simulation. Core sampling after fracturing has yielded cores containing numerous artificially created fractures, exhibiting diverse fracture orientations and surface morphologies. The fracture surface morphology is constrained by the type of fracturing. Characterizing and classifying the fracturing properties of conglomerate oil reservoirs, obtaining characteristic parameters, understanding the rock fracture characteristics of conglomerate oil reservoirs, comparing the differences in fracturing propagation under different conditions, analyzing the main factors affecting fracturing propagation, and evaluating the effectiveness of current fracturing operations on reservoir stimulation are crucial. Differentiating between tensile and shear fractures and comparing the location of fracturing clusters in adjacent wells can accurately characterize fracture propagation patterns and laws, providing direct guidance for the rational adjustment and optimization of fracturing parameters.

[0003] Traditional techniques typically determine the type of pressure fractures by manually observing core samples. However, this method becomes significantly less efficient with large sample sizes, and human judgment can lead to frequent errors. Furthermore, direct observation generally requires experienced personnel, further limiting efficiency. The patent "A Method for Determining Crack Types in Reinforced Concrete Structures Based on Moment Tensor" (Application Publication No. CN 110715982A) discloses a method for determining the type of pressure fractures in reinforced concrete structures based on moment tensors, utilizing acoustic emission signals. However, this method requires an acoustic emission signal acquisition device, resulting in high testing costs and a lengthy judgment process. Moreover, this method primarily targets surface samples, while artificial fractures in conglomerate originate underground and cannot be monitored and analyzed using this technique. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a method, system, and terminal device for identifying artificially inflated fracture types in conglomerate cores, thereby achieving the goal of efficiently and accurately identifying fracture types.

[0005] This invention is achieved through the following technical solution:

[0006] A method for identifying the type of artificially inflated fractures in conglomerate cores includes the following steps:

[0007] S1: Obtain the gravel penetration ratio of the fracture to be identified and the maximum amplitude ratio of the two edges of the fracture to be identified;

[0008] S2: By using the gravel penetration ratio, the maximum amplitude ratio of the two edges, and the pre-established discrimination formulas for different types of hydraulic fractures, the discrimination measurement values ​​for different types of hydraulic fractures are obtained;

[0009] S3: By comparing the differential pressure crack discrimination values ​​of the different types of cracks, the type of the crack to be discriminated is determined.

[0010] Preferably, the process of establishing the discriminant formulas for the different types of hydraulic fractures is as follows:

[0011] S201: Obtain core scan images of several core samples with known fracture types, and extract the pixels of the two edges of the fractures in several core scan images;

[0012] S202: Fit a trend line to the two edges of the pressure crack based on the extracted pixel points of the two edges of the pressure crack;

[0013] S203: Determine the maximum amplitude ratio of each of the two edges of a certain pressure fracture based on the trend line of the two edges of the pressure fracture;

[0014] S204: Obtain the fracture penetration ratio of several core samples with known fracture types;

[0015] S205: Determine the independent variable coefficients of different types of pressure fractures based on the fracture penetration ratio of the known core samples and the maximum amplitude ratio of the two edges of the corresponding pressure fractures, and obtain the discriminant formulas for the different types of pressure fractures.

[0016] Preferably, the process for obtaining the maximum amplitude ratio of the two edges of the hydraulic crack is as follows:

[0017]

[0018] In the formula, EAL top The maximum amplitude ratio of one edge of the crack;

[0019] EA top The maximum amplitude of one edge of the crack;

[0020] yf_l top The length of the trend line along one edge of the hydraulic crack;

[0021]

[0022] In the formula, EAL bot This is the maximum amplitude ratio of the other edge of the crack;

[0023] EA bot This represents the maximum amplitude of the crack along its other edge;

[0024] yf_lbot This is the length of the trend line along the other edge of the pressure crack.

[0025] Preferably, the process for obtaining the maximum amplitude of one edge and the maximum amplitude of the other edge of the hydraulic crack is as follows:

[0026] EA top =Ex top -En top

[0027] In the formula, Ex top The maximum peak height of one edge of the hydraulic crack;

[0028] En top The maximum valley depth of one edge of the hydraulic crack;

[0029] EA bot =Ex bot -En bot

[0030] In the formula, Ex bot The maximum peak height of the other edge of the hydraulic crack;

[0031] En bot The maximum valley depth is the other edge of the pressure fracture.

[0032] Preferably, the process of obtaining the length of the trend line at the edge of the hydraulic fracture is as follows:

[0033]

[0034] In the formula:

[0035] y f(i)top In the graphical coordinate system, the ordinate value of the trend line of one edge of the hydraulic crack when the horizontal coordinate is i.

[0036] y f(i+1)top In the graphical coordinate system, the ordinate value of the trend line of one edge of the hydraulic crack at the x-coordinate of i+1 is given.

[0037]

[0038] In the formula:

[0039] y f(i)bot In the graphical coordinate system, the ordinate value of the trend line of the other edge of the hydraulic crack when the horizontal coordinate is i;

[0040] y f(i+1)bot This represents the ordinate value of the trend line along the other edge of the hydraulic crack at the x-coordinate of i+1 in the graphical coordinate system.

[0041] Preferably, the process of obtaining the fracture penetration ratio is as follows:

[0042]

[0043] In the formula:

[0044] F_C_R is the fracture penetration ratio;

[0045] n F_C The number of gravel cut through by the crack;

[0046] n Unf_C This represents the number of gravel that were not cut through by the crack.

[0047] Preferably, the different types of pressure fracture discrimination schemes include shear fracture discrimination schemes and tensile fracture discrimination schemes;

[0048] The shear seam discriminant is:

[0049] F1 = 37.8 * F_C_R + 33.7 * EAL top +28.9·EAL bot -20.9

[0050] The discriminant for the tension seam is:

[0051] F2 = 36.1·F_C_R + 52.0·EAL top +53.4·EAL bot -32.6

[0052] In the formula:

[0053] F1 is the shear joint discrimination value; F2 is the tension joint discrimination value.

[0054] Preferably, the different types of pressure crack discrimination measurement values ​​include shear crack discrimination measurement values ​​and tensile crack discrimination measurement values;

[0055] Step S3 specifically involves determining that if the shear joint determination value is greater than the tensile joint determination value, then the pressure crack to be determined belongs to the shear joint; otherwise, the pressure crack to be determined belongs to the tensile joint.

[0056] A system for identifying the type of artificially inflated fractures in conglomerate cores includes:

[0057] Parameter acquisition module: The parameter acquisition module is used to acquire the gravel penetration ratio of the crack to be identified and the maximum amplitude ratio of the two edges of the crack to be identified;

[0058] Data processing module: The data processing module is used to obtain different types of pressure fracture discrimination measurement values ​​by using the gravel penetration ratio, the maximum amplitude ratio of the two edges, and the pre-established discrimination formulas for different types of pressure fractures;

[0059] Cracking type determination module: The cracking type determination module is used to determine the type of the crack to be determined by comparing the discrimination measurement values ​​of the different types of cracks.

[0060] A terminal device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement various steps of a method for identifying the type of artificially inflated fractures in conglomerate cores.

[0061] Compared with the prior art, the present invention has the following beneficial technical effects:

[0062] A method for identifying artificially inflated fracture types in conglomerate cores is presented. This method only requires obtaining the cross-gravel ratio and the maximum amplitude ratio of the two edges of the fracture to be identified, combined with pre-trained discriminant formulas for different types of fractures, to determine the fracture type. The analysis and identification process is accurate and rapid, requiring no complex equipment and is low-cost. This method is cost-effective, convenient, efficient, and highly accurate, providing fundamental data for analyzing fracturing effects and understanding fracture propagation patterns. Attached Figure Description

[0063] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0064] Figure 1 This is a flowchart illustrating a method for identifying the type of artificially inflated fractures in conglomerate cores according to the present invention.

[0065] Figure 2 This is a flowchart illustrating the process of establishing discriminant equations for different types of hydraulic fracturing according to the present invention.

[0066] Figure 3 These are the original scan images of the conglomerate core in the embodiments of the present invention;

[0067] Figure 4 These are the crack edge pixels extracted from the original scanned image of the conglomerate core in this embodiment of the invention.

[0068] Figure 5 This refers to the fitted crack edge trend line in the embodiments of the present invention;

[0069] Figure 6 This is a schematic diagram illustrating the definition of crack edge parameters in an embodiment of the present invention;

[0070] Figure 7 This is a schematic diagram illustrating the penetration and expansion of artificial cracks around the gravel in an embodiment of the present invention.

[0071] Figure 8 This is a schematic diagram of the structural connection of a system for identifying artificially inflated fracture types in conglomerate cores according to the present invention. Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0073] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0074] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0075] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0076] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0077] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0078] The present invention will now be described in further detail with reference to the accompanying drawings:

[0079] Traditional techniques typically determine the type of pressure fractures by manually observing core samples. However, this method becomes significantly less efficient with large sample sizes, and human judgment can lead to frequent errors. Furthermore, direct observation generally requires experienced personnel, further limiting efficiency. The patent "A Method for Determining Crack Types in Reinforced Concrete Structures Based on Moment Tensor" (Application Publication No. CN 110715982A) discloses a method for determining the type of pressure fractures in reinforced concrete structures based on moment tensors, utilizing acoustic emission signals. However, this method requires an acoustic emission signal acquisition device, resulting in high testing costs and a lengthy judgment process. Moreover, this method primarily targets surface samples, while artificial fractures in conglomerate originate underground and cannot be monitored and analyzed using this technique.

[0080] Furthermore, the stress directions of tensional and shear fractures differ; tensional fractures stretch around the gravel, while shear fractures laterally slide through the gravel. In actual core observations, due to the influence of the gravel's own strength and the strength of the cementation between the gravel and the matrix, fracture surfaces do not exhibit only gravel-snagging or gravel-cutting characteristics, but rather both coexist. This presents a technical challenge: relying solely on gravel-snagging or gravel-cutting phenomena for qualitative identification cannot effectively distinguish between the two types of fractures. Similarly, from the theoretical perspective of the propagation direction of tensional and shear fractures, qualitatively identifying fracture types based on fracture surface orientation also presents certain difficulties. Conglomerate reservoirs are highly heterogeneous, with large variations in gravel size, making it easy for fractures to locally deflect along the edges of larger gravels during propagation.

[0081] This invention discloses a method for identifying the type of artificially inflated fractures in conglomerate cores, such as... Figure 1 As shown, it includes the following steps:

[0082] S1: Obtain the gravel penetration ratio of the fracture to be identified and the maximum amplitude ratio of the two edges of the fracture to be identified;

[0083] S2: By using the gravel penetration ratio, the maximum amplitude ratio of the two edges, and the pre-established discrimination formulas for different types of hydraulic fractures, the discrimination measurement values ​​for different types of hydraulic fractures are obtained;

[0084] S3: By comparing the differential pressure crack discrimination values ​​of the different types of cracks, the type of the crack to be discriminated is determined.

[0085] Among them, such as Figure 2 As shown, in step S2, the process of establishing the discriminant for different types of hydraulic cracks is as follows:

[0086] S201 Fracture Edge Pixel Extraction: Obtain core scan images of several core samples with known pressure fracture types, and extract the pixels of the two edges of the pressure fracture in several core scan images;

[0087] like Figure 3 The image shown is the original scanned image of an artificial fracture. This original scanned image can be obtained using 360° core photography or unfolded CT scan images. In the image, the black area represents the artificial fracture area, and the gray area represents the rock body. Figure 4 As shown, these are the pixels of one edge of the extracted pressure crack.

[0088] S202 Fitting Crack Edge Trend Line: Fitting a trend line between the two edges of the pressure crack based on the extracted pixel points of the two edges of the pressure crack;

[0089] like Figure 5 As shown ( Figure 5 Showing Figure 4 The edge trend line is fitted based on the extracted pixels of one edge of the pressure fracture. Specifically, the fracture edge data is fitted with a 7th-order polynomial to obtain the equation of the pressure fracture edge trend line.

[0090] y = ax 7 +bx 6 +cx 5 +dx 4 +ex 3 +fx 2 +gx+h

[0091] Here, through multiple tests at various crack edges, selecting the 7th order can avoid underfitting and overfitting at most crack edges, which can meet the calculation accuracy while making the polynomial form as simple as possible and easier to operate and use.

[0092] S203 Calculate the maximum amplitude ratio of the crack edges: Determine the maximum amplitude ratio of each of the two edges of several cracks based on the trend lines of the two edges of the crack;

[0093] like Figure 6 The diagram shown illustrates the parameter definition for one edge of a hydraulic crack, where:

[0094]

[0095] In the formula, EAL top The maximum amplitude ratio of one edge of the crack;

[0096] EA top The maximum amplitude of one edge of the crack;

[0097] yf_l top The length of the trend line along one edge of the hydraulic crack;

[0098]

[0099] In the formula, EAL bot This is the maximum amplitude ratio of the other edge of the crack;

[0100] EA bot This represents the maximum amplitude of the crack along its other edge;

[0101] yf_l bot This is the length of the trend line along the other edge of the pressure crack.

[0102] in,

[0103] EA top =Ex top -En top

[0104] In the formula, Ex top The maximum distance between the pixel above the trend line of one edge of the pressure crack and the trend line is the maximum peak height of one edge of the pressure crack.

[0105] En top The maximum distance between the pixel below the trend line of one edge of the pressure crack and its trend line is the maximum valley depth of one edge of the pressure crack.

[0106] EA bot =Ex bot -En bot

[0107] In the formula, Ex bot The maximum distance between the pixel above the trend line of the other edge of the pressure crack and its trend line is the maximum peak height of the other edge of the pressure crack.

[0108] En bot The maximum distance between the pixel below the trend line of the other edge of the pressure fracture and its trend line is the maximum valley depth of the other edge of the pressure fracture.

[0109] in,

[0110]

[0111]

[0112] In the formula,

[0113] y (i) It refers to the ordinate value of the pixel at the edge of the crack when the horizontal coordinate is i, in the graphics processing coordinate system;

[0114] y f(i) It refers to the ordinate value of the trend line at the edge of the hydraulic crack when the horizontal coordinate is i, in the coordinate system of graphic processing.

[0115] Furthermore, the process of obtaining the length of the trend line at the edge of the hydraulic fracture is as follows:

[0116]

[0117] In the formula:

[0118] y f(i)top In the graphical coordinate system, the ordinate value of the trend line of one edge of the hydraulic crack when the horizontal coordinate is i.

[0119] y f(i+1)top In the graphical coordinate system, the ordinate value of the trend line of one edge of the hydraulic crack at the x-coordinate of i+1 is given.

[0120]

[0121] In the formula:

[0122] y f(i)bot In the graphical coordinate system, the ordinate value of the trend line of the other edge of the hydraulic crack when the horizontal coordinate is i;

[0123] y f(i+1)bot This represents the ordinate value of the trend line along the other edge of the hydraulic crack at the x-coordinate of i+1 in the graphical coordinate system.

[0124] S204 Fracture Penetration Ratio Determination: Obtain the fracture penetration ratio of several core samples with known fracture types, such as... Figure 7 The image shown is a physical diagram of the core. Based on the actual condition of the core, the number of gravel penetrations and gravel entanglements for each fracture are counted, and the gravel penetration ratio or gravel entanglement ratio for each fracture is calculated.

[0125]

[0126] In the formula:

[0127] F_C_R is the fracture penetration ratio;

[0128] n F_CThe number of gravel cut through by the crack is obtained by observing and describing the crack surface.

[0129] n Unf_C The number of gravel not cut through by the crack is obtained by observing and describing the crack surface.

[0130] The sum of the pebble penetration ratio and the pebble wrapping ratio is 1. If the pebble wrapping ratio is obtained, it can be calculated from the pebble wrapping ratio.

[0131] S205 Calculation of independent variable coefficients for shear fractures and tensile fractures: Based on the fracture penetration ratio and the maximum amplitude ratio of the two edges of the corresponding fractures in core samples of several known fracture types, the independent variable coefficients for different types of fractures are determined, resulting in discriminant formulas for the different types of fractures. Specifically, the discriminant formula for shear fractures is established using known shear fracture data, and the discriminant formula for tensile fractures is established using known tensile fracture data.

[0132] Table 1 shows the gravel penetration ratio of different pressure fractures and the maximum amplitude ratio of the two edges of the corresponding pressure fractures (i.e., relevant data from the training samples). Based on this data and combined with the Fisher discriminant method, the discriminant coefficients and intercepts of non-standard tensile and shear fractures are calculated, resulting in the discriminant formulas for shear and tensile fractures. The Fisher algorithm is an existing fixed algorithm; only a few sample data points are needed to obtain the independent variable coefficients in the Fisher discriminant formula.

[0133] Table 1. Gravel penetration ratios and maximum amplitude ratios of the two edges of different known hydraulic cracks (training samples).

[0134]

[0135] Based on the known cross-cutting ratio of the hydraulic fractures and the maximum amplitude ratio of the two edges of the corresponding hydraulic fractures, combined with Fisher's discriminant, the discriminant formulas for shear fractures and tensile fractures are established as follows:

[0136] The discriminant for shear seams is:

[0137] F1 = 37.8 * F_C_R + 33.7 * EAL top +28.9·EAL bot -20.9

[0138] The discriminant for tension seams is:

[0139] F2 = 36.1·F_C_R + 52.0·EAL top +53.4·EAL bot -32.6

[0140] In the formula:

[0141] F1 is the shear joint discrimination value; F2 is the tension joint discrimination value.

[0142] To further verify the accuracy of the method of this invention and illustrate the technical effect of this solution, the accuracy of the discriminant formula was verified through both self-verification and external verification. The results of the pressure fractures determined using the discriminant formula were compared with the fracture types determined by core observation. Self-verification refers to re-substituting the training sample data into the discriminant formula to calculate the conformity rate. External verification refers to using pressure fracture sample data that was not involved in establishing the formula to test the accuracy of the discriminant formula. The verification results are shown in Table 2. As those skilled in the art will know, in many cases, the conformity rate of self-verification is difficult to reach 100%, but the discriminant formula established by the method of this invention has a conformity rate of 100% regardless of whether it is self-verified or externally verified.

[0143] Table 2 uses self-verification and other-verification methods to verify the accuracy of the discriminant.

[0144]

[0145] like Figure 8 As shown, the present invention also discloses a system for identifying the type of artificially inflated fractures in conglomerate cores, comprising:

[0146] Parameter acquisition module 1001: The parameter acquisition module is used to acquire the gravel penetration ratio of the crack to be identified and the maximum amplitude ratio of the two edges of the crack to be identified;

[0147] Data processing module 1002: The data processing module is used to obtain different types of pressure fracture discrimination measurement values ​​through the gravel penetration ratio, the maximum amplitude ratio of the two edges and the pre-established discrimination formulas for different types of pressure fractures;

[0148] Cracking type determination module 1003: The cracking type determination module is used to determine the type of the crack to be determined by comparing the discrimination measurement values ​​of the different types of cracks.

[0149] One embodiment of the present invention also provides a terminal device. This terminal device includes a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps in the method embodiment for determining the type of artificially inflated fractures in conglomerate cores of the present invention. Alternatively, when the processor executes the computer program, it implements the functions of each module / unit in the above-described device embodiments.

[0150] The computer program can be divided into one or more modules / units, which are stored in the memory and executed by the processor to complete the present invention.

[0151] The terminal device may be a desktop computer, laptop, handheld computer, or cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0152] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0153] The memory can be used to store the computer program and / or module. The processor implements various functions of the terminal device by running or executing the computer program and / or module stored in the memory and calling the data stored in the memory.

[0154] If the modules / units integrated into the terminal device are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0155] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for identifying the type of artificially inflated fractures in conglomerate cores, characterized in that, Includes the following steps: S1: Obtain the gravel penetration ratio of the fracture to be identified and the maximum amplitude ratio of the two edges of the fracture to be identified; S2: By using the gravel penetration ratio, the maximum amplitude ratio of the two edges, and the pre-established discrimination formulas for different types of hydraulic fractures, the discrimination measurement values ​​for different types of hydraulic fractures are obtained; S3: Determine the type of the pressure crack to be identified by comparing the differential pressure crack identification values ​​of the different types; The specific process for establishing the discriminant formulas for the different types of hydraulic fractures is as follows: S201: Obtain core scan images of several core samples with known fracture types, and extract the pixels of the two edges of the fractures in several core scan images; S202: Fit a trend line to the two edges of the pressure crack based on the extracted pixel points of the two edges of the pressure crack; S203: Determine the maximum amplitude ratio of each of the two edges of a certain pressure fracture based on the trend line of the two edges of the pressure fracture; S204: Obtain the fracture penetration ratio of several core samples with known fracture types; S205: Determine the independent variable coefficients of different types of pressure fractures based on the fracture penetration ratio of the known core samples and the maximum amplitude ratio of the two edges of the corresponding pressure fractures, and obtain the discriminant formulas for the different types of pressure fractures. The process of obtaining the maximum amplitude ratio of the two edges of the hydraulic fracture is as follows: In the formula, The maximum amplitude ratio of one edge of the crack; The maximum amplitude of one edge of the crack; The length of the trend line along one edge of the hydraulic crack; In the formula, This is the maximum amplitude ratio of the other edge of the crack; This represents the maximum amplitude of the crack along its other edge; The length of the trend line along the other edge of the crack; The process of obtaining the maximum amplitude of one edge and the maximum amplitude of the other edge of the hydraulic crack is as follows: In the formula, The maximum peak height of one edge of the pressure crack is the maximum distance between the pixel above the trend line of one edge of the pressure crack and the trend line. The maximum valley depth of one edge of the pressure fracture; the maximum valley depth of one edge of the pressure fracture is the maximum distance between the pixel below the trend line of one edge of the pressure fracture and its trend line; In the formula, The maximum peak height of the other edge of the hydraulic crack; The maximum valley depth of the other edge of the hydraulic fracture; The process of obtaining the length of the trend line at the edge of the hydraulic fracture is as follows: In the formula: In the graphical coordinate system, the ordinate value of the trend line of one edge of the hydraulic crack when the horizontal coordinate is i. In the graphical coordinate system, the ordinate value of the trend line of one edge of the hydraulic crack at the x-coordinate of i+1 is given. In the formula: In the graphical coordinate system, the ordinate value of the trend line of the other edge of the hydraulic crack when the horizontal coordinate is i; This represents the ordinate value of the trend line along the other edge of the hydraulic crack at the x-coordinate of i+1 in the graphical coordinate system. The process of obtaining the fracture penetration ratio is as follows: In the formula: The fracture penetration ratio is the ratio of the fracture to the gravel. The number of gravel cut through by the crack; The number of gravel that was not cut through by the crack; The different types of crack discrimination formulas include shear crack discrimination formulas and tensile crack discrimination formulas; The shear seam discriminant is: The discriminant for the tension seam is: In the formula: Measurement values ​​for determining shear seams; The measurement value for determining tension seams.

2. The method for determining the type of artificially inflated fractures in conglomerate cores according to claim 1, characterized in that, The different types of pressure fracture discrimination measurement values ​​include shear fracture discrimination measurement values ​​and tension fracture discrimination measurement values; Step S3 specifically involves determining that if the shear joint determination value is greater than the tensile joint determination value, then the pressure crack to be determined belongs to the shear joint; otherwise, the pressure crack to be determined belongs to the tensile joint.

3. A system for identifying the type of artificially inflated fractures in conglomerate cores, characterized in that, The steps for implementing the method for determining the type of artificially inflated fractures in conglomerate cores as described in any one of claims 1 to 2 include: Parameter acquisition module: The parameter acquisition module is used to acquire the gravel penetration ratio of the crack to be identified and the maximum amplitude ratio of the two edges of the crack to be identified; Data processing module: The data processing module is used to obtain different types of pressure fracture discrimination measurement values ​​by using the gravel penetration ratio, the maximum amplitude ratio of the two edges, and the pre-established discrimination formulas for different types of pressure fractures; Cracking type determination module: The cracking type determination module is used to determine the type of the crack to be determined by comparing the discrimination measurement values ​​of the different types of cracks.

4. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method as described in claim 1.

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