Method, system and equipment for determining inclination direction of rock mass stratum interface and medium

Abstract

The invention relates to the technical field of geological exploration, in particular to a method, system and equipment for determining the inclination direction of a rock mass stratum interface and a medium. The method comprises the steps that a drill hole wall geometric model is constructed according to a shot transverse drill hole wall image and drill hole data, the stratum interface inclination direction is calculated according to the drill hole wall geometric model, and calculation of the inclination direction comprises correction according to geological habits. The method can accurately reflect the real inclination direction condition of the stratum.

Description

Background Art

[0002] In oil and gas exploration, understanding the inclination direction of the formation is the key to evaluating reservoir distribution, predicting the direction of oil and gas migration and the location of the trap. The inclination direction of the formation helps to identify potential oil and gas enrichment areas, optimize the location and direction of drilling, and improve the success rate of exploration. The current technology for determining the inclination direction of the formation in the field of geological engineering mainly focuses on the measurement and analysis of the inclination direction of the formation, as well as the geological structure research and engineering applications based on these data. Specifically, the inclination direction of the formation refers to the degree of inclination of the formation on the earth's surface. In practical applications, geologists and engineers use a variety of tools to measure the inclination direction of the formation, such as level meters, rangefinders, theodolites, etc. The measurement results can be drawn into a formation dip map for further geological analysis and research. In addition, the measurement and analysis of the inclination direction of the formation is of great significance for studying seismic activity, the distribution of fault zones, and the development of tectonic zones.

[0003] The natural deflection characteristics of the formation have a great influence on the control of well inclination and azimuth during drilling. Some studies have established a formation inclination direction calculation method based on the formation level spatial grid, and derived a calculation model for well inclination and azimuth offset to optimize drilling technology. At present, the method of using vertical drilling to analyze the inclination direction is relatively mature, but the borehole wall image of the horizontal drilling may be difficult to accurately reflect the true inclination direction of the formation due to factors such as the drilling direction and the inclination angle of the rock formation. Summary of the invention

[0004] The present invention provides a method, system, equipment and medium for determining the inclination direction of a rock mass stratum interface, aiming to solve the problem that the inclination direction of a stratum interface cannot be accurately determined by currently using transverse drilling.

[0005] The objective of the present invention is achieved by the following technical solutions: In a first aspect, the present invention provides a method for determining the inclination direction of a rock mass stratum interface, comprising: Constructing a borehole wall geometric model according to the photographed lateral borehole wall image and the drilling data, wherein the borehole wall geometric model includes a first stratum, a second stratum and a stratum interface; The inclination direction of the stratum interface is calculated according to the borehole wall geometric model.

[0006] As a further improvement of the present invention, the geometric model of the borehole wall is constructed based on the acquired and photographed transverse borehole wall image and the drilling data, specifically including: constructing a plane geometric model according to the horizontal drilling hole wall image, and determining the position of the feature point based on the plane geometric model; Establishing a borehole wall geometric model according to the plane geometric model and the drilling data; A spatial relative coordinate system in a borehole wall geometric model is determined, characteristic points are converted to the spatial relative coordinate system, and a stratum interface is determined based on the characteristic points in the spatial relative coordinate system.

[0007] As a further improvement of the present invention, the converting of the feature points to the space relative coordinate system specifically includes: Obtaining plane coordinates of three feature points based on a plane geometric model, wherein the plane coordinates include a drilling depth and a roll angle; The plane coordinates of the three feature points obtained by the plane geometric model are converted into a space relative coordinate system, wherein the space relative coordinate system takes the center of the transverse drilling hole as the coordinate origin, and the drilling direction, the plumb direction and the horizontal direction as the coordinate axes.

[0008] As a further improvement of the present invention, the calculation expression of the stratum interface is:

[0009] Wherein, a is the X-axis intercept coefficient, b is the Y-axis intercept coefficient, and c is the Z-axis intercept coefficient, and the intercept coefficients are determined according to the position coordinates of the feature points.

[0010] As a further improvement of the present invention, the calculation expression of the inclination direction of the stratum interface is:

[0011] In the formula, is the inclination direction of the stratum interface, a is the X-axis intercept coefficient, c is the Z-axis intercept coefficient, and x is the inclination direction of the borehole.

[0012] As a further improvement of the present invention, after determining the inclination direction of the stratum interface, the inclination direction of the stratum interface is adjusted according to the product bc of the Y-axis intercept coefficient b and the Z-axis intercept coefficient c, specifically including: When the product of the Y-axis intercept coefficient and the Z-axis intercept coefficient bc is less than 0, the inclination direction of the stratum interface 180+( )Spend; , the inclination direction of the stratum interface for Spend.

[0013] As a further improvement of the present invention, after determining the value of the inclination direction of the stratum interface, the inclination direction of the stratum interface is further corrected according to geological experience, specifically including: The inclination direction of the current stratum interface When the value is less than 0 degrees, the current inclination direction of the stratum interface The value plus 360 degrees is used as the final inclination direction of the stratigraphic interface; The inclination direction of the current stratum interface When the value is greater than 360 degrees, the current inclination direction of the stratum interface The value minus 360 degrees is used as the final inclination direction of the stratigraphic interface.

[0014] In a second aspect, the present invention further provides a system for determining the inclination direction of a rock mass stratum interface, which is used to implement the above-mentioned method for determining the inclination direction of a rock mass stratum interface, comprising: A geometric model building module, used to build a borehole wall geometric model according to the photographed lateral borehole wall image and the drilling data, wherein the borehole wall geometric model includes a first stratum, a second stratum and a stratum interface; The inclination direction calculation module is used to calculate the inclination direction of the stratum interface according to the borehole wall geometric model.

[0015] In a third aspect, the present invention further provides a computing device, comprising: One or more processors, a memory and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include steps for executing a method for determining the inclination direction of a rock mass stratum interface.

[0016] In a fourth aspect, the present invention also provides a computer-readable storage medium storing one or more programs, characterized in that the one or more programs include instructions, which, when executed by a computing device, enable the computing device to execute the above-mentioned method for determining the inclination direction of the rock stratum interface.

[0017] The beneficial effect of the present invention is that by constructing a geometric model of the borehole wall and determining the inclination direction of the stratum interface, the distribution and characteristics of the underground strata can be understood more accurately, thereby guiding subsequent exploration work. By constructing a geometric model of the borehole wall and determining the inclination direction of the stratum interface, the shortcomings of current lateral drilling in determining the inclination direction of the stratum interface can be compensated. It is helpful to optimize the drilling position and direction and improve the exploration success rate, which is of great significance in the fields of oil and gas exploration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a schematic diagram of a plane geometric model of a hole wall in an embodiment provided by the present invention; Figure 2 is a schematic diagram of a hole wall space geometric model in an embodiment provided by the present invention; Figure 3 is a schematic diagram of a spatial relative coordinate system in an embodiment provided by the present invention; Figure 4 It is a schematic flow chart of a method for determining the inclination direction of a rock mass stratum interface in an embodiment provided by the present invention; Figure 5 It is a schematic diagram of geometric analysis of the inclination direction of the stratum interface in the embodiment provided by the present invention; Figure 6 is a schematic diagram of a hole wall image in an embodiment provided by the present invention; Figure 7 is a schematic diagram of characteristic points in an embodiment provided by the present invention; Figure 8 It is a schematic diagram of the structure of a computing device in an embodiment provided by the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the present invention clearer and easier to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The present invention provides a method, system, device and medium for determining the inclination direction of a rock mass stratum interface. The determination method mainly includes: Constructing a borehole wall geometric model according to the photographed lateral borehole wall image and the drilling data, wherein the borehole wall geometric model includes a first stratum, a second stratum and a stratum interface; Among them, a plane geometric model is constructed according to the horizontal borehole wall image, and the position of the feature point is determined based on the plane geometric model; a spatial geometric model is established according to the plane geometric model and the drilling data; the spatial relative coordinate system in the spatial geometric model is determined, the feature points are converted to the spatial relative coordinate system, and the stratigraphic interface equation is determined based on the feature points in the spatial relative coordinate system.

[0022] Specifically, the plane coordinates of three feature points are obtained based on the plane geometric model, and the plane coordinates include the drilling depth and the roll angle; The plane coordinates of the three feature points obtained by the plane geometric model are converted into a space relative coordinate system, wherein the space relative coordinate system takes the center of the transverse drilling hole as the coordinate origin, and the drilling direction, the plumb direction and the horizontal direction as the coordinate axes.

[0023] Among them, the intercept equation expression of the stratum interface is:

[0024] Wherein, a is the X-axis intercept coefficient, b is the Y-axis intercept coefficient, and c is the Z-axis intercept coefficient. The intercept coefficients are determined according to the spatial position coordinates of the feature points.

[0025] The inclination direction of the formation interface is determined based on the geometric model of the borehole wall.

[0026] Among them, the calculation expression of the inclination direction of the stratum interface is: +x In the formula, is the inclination direction of the stratum interface, a is the X-axis intercept coefficient, and c is the Z-axis intercept coefficient.

[0027] Based on the inclination direction of the stratum interface, it includes: When the inclination direction of the stratum interface is 180+ +x degrees; , the inclination direction of the stratum interface for +x degrees.

[0028] The inclination direction of the stratum interface is re-corrected according to the product bc of the Y-axis intercept coefficient and the Z-axis intercept coefficient, thereby further improving the accuracy of determining the inclination direction.

[0029] The inclination direction of the current stratum interface When the value is less than 0 degrees, the current inclination direction of the stratum interface The value after adding 360 degrees is the final inclination direction of the stratigraphic interface.

[0030] The current inclination direction of the stratum interface When the value is greater than 360 degrees, the current inclination direction of the stratum interface The value obtained by subtracting 360 degrees is the final inclination direction of the stratum interface.

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, wherein the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Example 1 like Figure 1-Figure 7 As shown, this embodiment provides a method for determining the inclination direction of a rock mass stratum interface, which specifically includes the following implementation methods.

[0033] Based on the horizontal borehole wall images and drilling data, a borehole wall geometric model including the first stratum, the second stratum and the stratum interface is constructed. The positions of feature points are determined through the plane geometric model, and these feature points usually represent the key positions or morphological change points of the stratum interface.

[0034] This embodiment establishes a plane geometric model with plane images of the horizontal borehole wall of two strata. Figure 1 , the horizontal direction represents the hole depth h, and the depth increases gradually from left to right. The vertical direction represents the roll angle, and the degree is expressed in radians, with a value range of 0 to 2π, and gradually increases from bottom to top.

[0035] In this embodiment, the image data collected during the horizontal drilling is used to generate Figure 5 The hole wall image. The horizontal direction of the hole wall image represents the hole depth, and the depth increases gradually from left to right. The vertical direction of the hole wall image represents the roll angle, and the value range is 0 to 2π, and π is 3.14. It increases gradually from bottom to top. The roll angles of 0, 0.5π, π, 1.5π, and 2π represent the images of the top, right, bottom, left, and top of the borehole respectively. In this embodiment, the upward and right coordinates of the image display window are defined as positive, and the lower left corner of the image display area is the coordinate origin. The lower left corner of the image coincides with the coordinate point (0,0), the display width is the same as the hole depth, and the displayed height is 2π, that is, 6.28.

[0036] The hole wall image in this embodiment is as follows Figure 6 , Figure 7 As shown in the figure, there are two strata, and there is a stratum boundary line between the two strata, that is, the left side of the plane geometric model is the first stratum, the right side is the second stratum, and there is a stratum boundary line between the first stratum and the second stratum. Point A is the leftmost peak position of the stratum boundary line, point B is the rightmost peak position of the stratum boundary line, and point C is the intersection of line AB and the boundary line.

[0037] At this time, points A, B, and C are used as feature points, that is, point A corresponds to the first feature point, point B corresponds to the second feature point, and point C corresponds to the third feature point. The positions of the three feature points are obtained through the plane geometry model of the hole wall image. The coordinates of point A are (h1, θ1), the coordinates of point B are (h2, θ2), and the coordinates of point C are (h3, θ3). The plane coordinates of the plane geometry model include the drilling depth h and the roll angle θ.

[0038] according to Figure 1 The plane geometry model shown in the figure is Figure 2The spatial geometric model of the borehole wall is converted to more accurately describe the three-dimensional morphology of the stratum interface. In the process of converting the plane geometric model to the spatial geometric model of the borehole wall, the roll angle of 0 radians is located above the borehole, 0.5π radians is located on the right side of the borehole, π radians is located below the borehole, 1.5π radians is located on the left side of the borehole, and 2π radians is located above the borehole. The 0 radian and 2π radian images are both located directly above the borehole. The first feature point corresponds to the peak position corresponding to the shallowest hole depth of the stratum interface, and the second feature point corresponds to the peak position corresponding to the deepest hole depth. The intersection of the straight line connecting the first feature point and the second feature point and the stratum boundary line is used as the third feature point.

[0039] Determine the spatial relative coordinate system in the spatial geometric model of the borehole wall, and transform the coordinates of the feature points in the plane geometric model to the coordinate system for subsequent calculations. In this embodiment, the center point of the hole mouth is taken as the coordinate origin, the drilling direction is the Z axis, the vertical direction is the Y axis, and the horizontal direction is the X axis. The bottom of the hole, the top, and the right direction are respectively taken as positive, forming the following: Figure 3 According to the spatial relative coordinate system, the boundary line in the plane geometric model is determined as the stratigraphic interface, and the positions of the three characteristic points in the plane geometric model are converted to the stratigraphic interface of the borehole wall spatial geometric model.

[0040] like Figure 3 As shown, assume that any point P i Point is any point on the stratigraphic boundary line, passing through P i Draw a perpendicular line to the Z axis, which intersects the Z axis at point C. CD is the vertical upward direction, and ∠DCP is defined. i ∠Φ i , where ∠Φ i P i Point roll angle, P i The spatial coordinate expression of a point is: xi=r*sin(θ i ) yi=r*cos(θ i ) zi=h i Then the position expressions of the three feature points A (x1, y1, z1), B (x2, y2, z2), and C (x3, y3, z3) in the relative coordinate system are:

[0041]

[0042]

[0043] In addition, the calculation expression of the stratum interface is:

[0044] Wherein, a is the X-axis intercept coefficient, b is the Y-axis intercept coefficient, and c is the Z-axis intercept coefficient. The intercept coefficients are determined according to the feature points.

[0045] Then, the calculation expressions of each intercept coefficient are:

[0046]

[0047]

[0048] Substituting the coordinates of the three feature points respectively, we can get the X, Y, and Z axis intercept coefficients a, b, and c.

[0049] The inclination direction of the stratum interface is determined based on the stratum interface intercept equation, and its calculation expression is:

[0050] In the formula, is the inclination direction of the stratum interface, a is the X-axis intercept coefficient, c is the Z-axis intercept coefficient, and x is the inclination direction of the borehole.

[0051] The value range of γ is (-90°, 90°). In fact, the value range of the inclination direction of the stratum interface is (0, 360°). Therefore, there are certain defects in using only the inverse tangent angle to characterize the inclination direction of the stratum interface. However, the inclination direction of the stratum interface is related to the Y-axis intercept coefficient and the Z-axis intercept coefficient in the calculation expression of the stratum interface. Specifically, when the product of the Y-axis intercept coefficient and the Z-axis intercept coefficient bc is less than 0, the inclination direction of the stratum interface is 180+( )Spend; , the inclination direction of the stratum interface for Spend.

[0052] After determining the value of the inclination direction of the stratum interface, the inclination direction of the stratum interface is further corrected, including: The current inclination direction of the stratum interface When the value is less than 0 degrees, the current inclination direction of the stratum interface The value after adding 360 degrees is the final inclination direction of the stratigraphic interface; The current inclination direction of the stratum interface When the value is greater than 360 degrees, the current inclination direction of the stratum interface The value obtained by subtracting 360 degrees is the final inclination direction of the stratum interface.

[0053] Adjustments are made to the inclination direction less than 0 degrees or greater than 360 degrees so that the final inclination direction of the stratum interface is more consistent with the actual situation.

[0054] In summary, by constructing a three-dimensional spatial geometric model of the borehole wall and using precise coordinate transformation and calculation methods, the accuracy of the inclination direction of the stratum interface can be significantly improved. This method is not only applicable to rock strata, but can also be extended to other types of geological bodies, and has broad application prospects. Accurate information on the inclination direction of the stratum interface is of great significance for decision-making in the fields of geological engineering, mineral resource exploration, and tunnel construction.

[0055] Example 2 This embodiment provides a system for determining the inclination direction of a rock mass stratum interface, which is used to implement the method for determining the inclination direction of a rock mass stratum interface in the above embodiment 1, comprising: A geometric model building module, used to build a borehole wall geometric model according to the photographed lateral borehole wall image and the drilling data, wherein the borehole wall geometric model includes a first stratum, a second stratum and a stratum interface; The inclination direction calculation module calculates the inclination of the stratum interface based on the geometric model of the borehole wall. The inclination calculation includes correction based on geological habits.

[0056] It will be appreciated by those skilled in the art that various aspects of the present invention may be implemented as a system, method or program product. Therefore, various aspects of the present invention may be specifically implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to herein as a "circuit", "module" or "platform".

[0057] Example 3 In one embodiment of the present invention, the present invention also provides a storage medium, specifically a computer-readable storage medium (Memory), which is a memory device in a terminal device for storing programs and data. It is understandable that the computer-readable storage medium here can include both the built-in storage medium in the terminal device and the extended storage medium supported by the terminal device, and can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it. The computer-readable storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space, and these instructions can be one or more computer programs (including program codes). It should be noted that more specific examples of the computer-readable storage medium here include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), a pluggable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0058] Computer readable storage media also include data signals propagated in baseband or as part of a carrier wave, which carry readable program codes. Such propagated data signals can take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The readable storage medium can also be any readable medium other than a readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, device, or device. The program code contained on the readable storage medium can be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the above.

[0059] Program code for performing the operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device, partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., through the Internet using an Internet service provider).

[0060] The processor may load and execute one or more instructions stored in a computer-readable storage medium to implement the corresponding steps of the method for determining the inclination direction of the rock mass stratum interface in the above embodiment; the processor may load and execute the following steps: Constructing a borehole wall geometric model according to the photographed lateral borehole wall image and the drilling data, wherein the borehole wall geometric model includes a first stratum, a second stratum and a stratum interface; The inclination of the stratum interface is calculated based on the borehole wall geometric model, and the inclination calculation includes correction according to geological practices.

[0061] Example 4 See also Figure 8 , the terminal device is a computer device, and the computer device 60 of this embodiment includes: a processor 61, a memory 62, and a computer program 63 stored in the memory 62 and executable on the processor 61. When the computer program 63 is executed by the processor 61, the method for calculating the composition of fluid in the reservoir transformation wellbore in the embodiment is realized. To avoid repetition, it is not described one by one here. Alternatively, when the computer program 63 is executed by the processor 61, the functions of each model / unit in the calculation system for the composition of fluid in the reservoir transformation wellbore in the embodiment are realized. To avoid repetition, it is not described one by one here.

[0062] The computer device 60 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The computer device 60 may include, but is not limited to, a processor 61 and a memory 62. Those skilled in the art will appreciate that Figure 8 This is only an example of the computer device 60 and does not constitute a limitation of the computer device 60. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the computer device may also include input and output devices, network access devices, buses, etc.

[0063] The processor 61 may be a central processing unit (CPU), or other general-purpose processors, central processing units, graphics processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, data processing logic based on quantum computing, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0064] The memory 62 may be an internal storage unit of the computer device 60, such as a hard disk or memory of the computer device 60. The memory 62 may also be an external storage device of the computer device 60, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the computer device 60.

[0065] Furthermore, the memory 62 may include both an internal storage unit of the computer device 60 and an external storage device. The memory 62 is used to store computer programs and other programs and data required by the computer device. The memory 62 may also be used to temporarily store data that has been output or is to be output.

[0066] Any reference to a memory, database or other medium used in the embodiments provided in the present application may include at least one of a non-volatile and a volatile memory. Non-volatile memory may include a read-only memory (ROM), a magnetic tape, a floppy disk, a flash memory, an optical memory, a high-density embedded non-volatile memory, a resistive random access memory (ReRAM), a magnetic random access memory (MRAM), a ferroelectric random access memory (FRAM), a phase change memory (PCM), a graphene memory, etc. Volatile memory may include a random access memory (RAM) or an external cache memory, etc. As an illustration and not limitation, RAM may be in various forms, such as a static random access memory (SRAM) or a dynamic random access memory (DRAM), etc.

[0067] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but is not limited thereto.

Claims

1. A method for determining the inclination direction of a rock mass stratum interface, characterized in that: include: Constructing a borehole wall geometric model according to the photographed lateral borehole wall image and the drilling data, wherein the borehole wall geometric model includes a first stratum, a second stratum and a stratum interface; The inclination direction of the stratum interface is determined according to the borehole wall geometric model.

2. The method for determining the inclination direction of the rock mass stratum interface according to claim 1, characterized in that: The step of constructing a borehole wall geometric model based on the acquired and photographed transverse borehole wall image and the drilling data specifically includes: constructing a plane geometric model according to the horizontal drilling hole wall image, and determining the position of the feature point based on the plane geometric model; Establishing a borehole wall geometric model according to the plane geometric model and the drilling data; A spatial relative coordinate system in a borehole wall geometric model is determined, characteristic points are converted to the spatial relative coordinate system, and a stratum interface is determined based on the characteristic points in the spatial relative coordinate system.

3. The method for determining the inclination direction of the rock mass stratum interface according to claim 2, characterized in that: The converting of the feature points to the space relative coordinate system specifically includes: Obtaining plane coordinates of three feature points based on a plane geometric model, wherein the plane coordinates include a drilling depth and a roll angle; The plane coordinates of the three characteristic points obtained from the plane geometric model are converted into a space relative coordinate system, wherein the space relative coordinate system takes the center of the transverse drilling hole as the coordinate origin, and the drilling direction, the plumb direction and the horizontal direction as the coordinate axes.

4. The method for determining the inclination direction of the rock mass stratum interface according to claim 2, characterized in that: The calculation expression of the stratum interface is: Wherein, a is the X-axis intercept coefficient, b is the Y-axis intercept coefficient, and c is the Z-axis intercept coefficient, and the intercept coefficients are determined according to the position coordinates of the feature points.

5. The method for determining the inclination direction of the rock mass stratum interface according to claim 4, characterized in that: The calculation expression of the inclination direction of the stratum interface is: In the formula, is the inclination direction of the stratum interface, a is Intercept coefficient, c is the Z-axis intercept coefficient, and x is the drilling inclination direction.

6. The method for determining the inclination direction of the rock mass stratum interface according to claim 5, characterized in that: After determining the inclination direction of the stratum interface, the inclination direction of the stratum interface is adjusted according to the Y-axis intercept coefficient b and the Z-axis intercept coefficient c, specifically including: When the product of the Y-axis intercept coefficient b and the Z-axis intercept coefficient c is less than 0, the inclination direction of the stratum interface 180+( )Spend; , the inclination direction of the stratum interface for Spend.

7. The method for determining the inclination direction of the rock mass stratum interface according to claim 5, characterized in that: After determining the value of the inclination direction of the stratum interface, the inclination direction of the stratum interface is corrected according to geological experience, specifically including: The inclination direction of the current stratum interface When the value is less than 0 degrees, the current inclination direction of the stratum interface The value after adding 360 degrees is the final inclination direction of the stratigraphic interface; The inclination direction of the current stratum interface When the value is greater than 360 degrees, the current inclination direction of the stratum interface The value obtained by subtracting 360 degrees is the final inclination direction of the stratum interface.

8. A system for determining the inclination direction of a rock mass stratum interface, used to implement the method for determining the inclination direction of a rock mass stratum interface according to any one of claims 1 to 7, characterized in that: include A geometric model building module, used to build a borehole wall geometric model based on the acquired and photographed lateral borehole wall image and the drilling data, wherein the borehole wall geometric model includes a first stratum, a second stratum and a stratum interface; The inclination direction calculation module is used to calculate the inclination direction of the stratum interface according to the borehole wall geometric model.

9. A computing device, characterized in that include: One or more processors, a memory and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include steps for executing the method for determining the inclination direction of the rock stratigraphic interface as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing one or more programs, characterized in that: The one or more programs include instructions, which, when executed by a computing device, cause the computing device to execute the method for determining the inclination direction of a rock mass stratum interface as described in any one of claims 1 to 7.

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