A method, system, device and medium for determining the tilt direction of a rock mass stratigraphic boundary surface

Abstract

The present application relates to the technical field of geological exploration, and in particular to a method, system, device and medium for determining the inclination direction of a rock mass stratum interface. The method comprises constructing a borehole wall geometry model according to a photographed lateral borehole wall image and borehole data, and calculating the inclination direction of the stratum interface according to the borehole wall geometry model. The inclination direction calculation comprises correction according to geological habits. The method can accurately reflect the real inclination direction of the stratum.

Description

Technical Field

[0001] This invention relates to the field of geological exploration technology, specifically to a method, system, equipment, and medium for determining the dip direction of rock mass stratigraphic interfaces. Background Technology

[0002] In oil and gas exploration, understanding the dip direction of strata is crucial for assessing reservoir distribution, predicting oil and gas migration directions, and identifying trap locations. The dip direction helps identify potential oil and gas enrichment areas, optimize drilling locations and directions, and improve exploration success rates. Current technologies for determining the dip direction in the field of geological engineering mainly focus on the measurement and analysis of the dip direction, as well as geological structure studies and engineering applications based on this data. Specifically, the dip direction refers to the degree of inclination of strata on the Earth's surface. In practical applications, geologists and engineers use various tools to measure the dip direction of strata, such as levels, rangefinders, and theodolites. The measurement results can be plotted into stratigraphic dip maps for further geological analysis and research. Furthermore, the measurement and analysis of the dip direction of strata is of great significance for studying seismic activity, the distribution of fault zones, and the development of tectonic zones.

[0003] The natural build-up characteristics of formations significantly influence wellbore inclination and azimuth control during drilling. Some studies have established a method for calculating formation dip direction based on a spatial grid of formation bedding planes, deriving calculation models for wellbore inclination and azimuth offsets to optimize drilling techniques. Currently, the method of analyzing dip direction using vertical boreholes is relatively mature, while borehole wall images of horizontal boreholes may not accurately reflect the true dip direction of the formation due to factors such as borehole direction and rock layer dip angle. Summary of the Invention

[0004] This invention provides a method, system, equipment, and medium for determining the dip direction of rock mass strata interfaces, aiming to solve the problem that current transverse drilling methods cannot accurately determine the dip direction of strata interfaces.

[0005] The objective of this invention is achieved through the following technical solutions:

[0006] In a first aspect, the present invention provides a method for determining the dip direction of a rock mass stratigraphic interface, comprising:

[0007] A geometric model of the borehole wall is constructed based on the captured images of the transverse borehole wall and the borehole data. The geometric model of the borehole wall includes the first stratum, the second stratum, and the stratum interface.

[0008] The dip direction of the formation interface is calculated based on the borehole wall geometry model.

[0009] As a further improvement of the present invention, the step of constructing a borehole wall geometric model based on the acquired and photographed transverse borehole wall image and borehole data specifically includes:

[0010] A planar geometric model is constructed based on the image of the transverse borehole wall, and the positions of feature points are determined based on the planar geometric model.

[0011] A borehole wall geometric model is established based on the aforementioned planar geometric model and borehole data;

[0012] Determine the spatial relative coordinate system in the borehole wall geometry model, transform the feature points to the spatial relative coordinate system, and determine the formation interface based on the feature points in the spatial relative coordinate system.

[0013] As a further improvement of the present invention, the step of transforming the feature points to the spatial relative coordinate system specifically includes:

[0014] The planar coordinates of three feature points are obtained based on the planar geometric model, and the planar coordinates include the borehole depth and roll angle.

[0015] The planar coordinates of the three feature points obtained from the planar geometric model are transformed into a spatial relative coordinate system, which takes the center of the transverse borehole opening as the origin and the drilling direction, vertical direction and horizontal direction as the coordinate axes.

[0016] As a further improvement of the present invention, the calculation expression for the formation interface is as follows:

[0017]

[0018] In the formula, 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 based on the coordinates of the feature point.

[0019] As a further improvement of the present invention, the expression for calculating the dip direction of the formation interface is as follows:

[0020]

[0021] In the formula, denoted by , where is the dip direction of the formation interface, 'a' is the X-axis intercept coefficient, 'c' is the Z-axis intercept coefficient, and 'x' is the borehole dip direction.

[0022] As a further improvement of the present invention, after determining the dip direction of the formation interface, the method further includes adjusting the dip direction of the formation interface according to the product bc of the Y-axis intercept coefficient b and the Z-axis intercept coefficient c, specifically including:

[0023] When the product of the Y-axis intercept and the Z-axis intercept, bc, is less than 0, the dip direction of the formation interface is... 180+ )Spend;

[0024] The dip direction of the formation interface for Spend.

[0025] As a further improvement of the present invention, after determining the numerical value of the dip direction of the stratigraphic interface, the method further includes re-correcting the dip direction of the stratigraphic interface based on geological experience, specifically including:

[0026] The dip direction of the current stratigraphic interface When the value is less than 0 degrees, the current dip direction of the stratigraphic interface The value is added to 360 degrees to obtain the final dip direction of the stratigraphic boundary.

[0027] The dip direction of the current stratigraphic interface When the value is greater than 360 degrees, the current dip direction of the stratigraphic interface The value minus 360 degrees is taken as the final dip direction of the stratigraphic interface.

[0028] Secondly, the present invention also provides a system for determining the dip direction of rock mass stratigraphic interfaces, used to implement the above-mentioned method for determining the dip direction of rock mass stratigraphic interfaces, including...

[0029] The geometric model construction module is used to construct a geometric model of the borehole wall based on the captured images of the transverse borehole wall and the borehole data. The geometric model of the borehole wall includes a first stratum, a second stratum, and a stratum interface.

[0030] The tilt direction calculation module is used to calculate the tilt direction of the formation interface based on the borehole wall geometry model.

[0031] Thirdly, the present invention also provides a computing device, comprising:

[0032] 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, the one or more programs including steps for performing a method for determining the dip direction of a rock mass stratigraphic interface.

[0033] Fourthly, the present invention also provides a computer-readable storage medium for storing one or more programs, characterized in that the one or more programs include instructions that, when executed by a computing device, cause the computing device to perform the above-described method for determining the dip direction of rock mass stratigraphic interfaces.

[0034] The beneficial effects of this invention are as follows: by constructing a borehole wall geometric model and determining the dip direction of the formation interface, the distribution and characteristics of underground strata can be understood more accurately, thereby guiding subsequent exploration work. Constructing a borehole wall geometric model and determining the dip direction of the formation interface can overcome the shortcomings of current lateral borehole methods in determining the dip direction of formation interfaces. This helps optimize drilling location and direction, improves exploration success rate, and is particularly significant in fields such as oil and gas exploration. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the planar geometric model of the hole wall in the embodiment provided by the present invention;

[0037] Figure 2 This is a schematic diagram of the spatial geometric model of the hole wall in the embodiment provided by the present invention;

[0038] Figure 3 This is a schematic diagram of the spatial relative coordinate system in the embodiments provided by the present invention;

[0039] Figure 4 This is a schematic flowchart of the method for determining the dip direction of the rock mass stratigraphic interface in the embodiments provided by the present invention;

[0040] Figure 5 This is a schematic diagram of the geometric analysis of the dip direction of the stratigraphic interface in the embodiment provided by the present invention;

[0041] Figure 6 This is a schematic diagram of the hole wall in an embodiment provided by the present invention;

[0042] Figure 7 This is a schematic diagram of feature points in an embodiment provided by the present invention;

[0043] Figure 8 This is a schematic diagram of the structure of the computing device in the embodiment provided by the present invention. Detailed Implementation

[0044] To make the objectives and technical solutions of this invention clearer and easier to understand, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0045] The present invention provides a method, system, device, and medium for determining the dip direction of rock mass stratigraphic interfaces. The method mainly includes:

[0046] A geometric model of the borehole wall is constructed based on the captured images of the transverse borehole wall and the borehole data. The geometric model of the borehole wall includes the first stratum, the second stratum, and the stratum interface.

[0047] Specifically, a planar geometric model is constructed based on the transverse borehole wall image, and the location of feature points is determined based on the planar geometric model; a spatial geometric model is established based on the planar geometric model and borehole data; a spatial relative coordinate system is determined in the spatial geometric model, the feature points are transformed to the spatial relative coordinate system, and the formation interface equation is determined based on the feature points in the spatial relative coordinate system.

[0048] Specifically, the planar coordinates of three feature points are obtained based on a planar geometric model, and the planar coordinates include the borehole depth and roll angle;

[0049] The planar coordinates of the three feature points obtained from the planar geometric model are transformed into a spatial relative coordinate system, which takes the center of the transverse borehole opening as the origin and the drilling direction, vertical direction and horizontal direction as the coordinate axes.

[0050] The intercept equation for the stratigraphic boundary is expressed as follows:

[0051]

[0052] In the formula, 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 based on the spatial coordinates of the feature points.

[0053] The dip direction of the formation interface is determined based on the borehole wall geometry model.

[0054] The expression for calculating the dip direction of the stratigraphic interface is as follows:

[0055] +x

[0056] In the formula, denoted by , where 'a' represents the dip direction of the stratigraphic interface, 'a' is the X-axis intercept coefficient, and 'c' is the Z-axis intercept coefficient.

[0057] Based on the dip direction of the stratigraphic interface, specifically including:

[0058] At that time, the dip direction of the stratigraphic interface 180+ +x degrees;

[0059] The dip direction of the formation interface for +x degrees.

[0060] The dip direction of the formation interface is recalibrated based on the product bc of the Y-axis intercept coefficient and the Z-axis intercept coefficient, which further improves the accuracy of dip direction determination.

[0061] The dip direction of the current stratigraphic interface When the value is less than 0 degrees, the current dip direction of the stratigraphic interface The value plus 360 degrees is the final dip direction of the stratigraphic interface.

[0062] The dip direction of the current stratigraphic interface When the value is greater than 360 degrees, the current dip direction of the stratigraphic interface The value minus 360 degrees is the final dip direction of the stratigraphic interface.

[0063] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0064] Example 1

[0065] like Figures 1-7 As shown in the figure, this embodiment provides a method for determining the dip direction of the rock mass stratigraphic interface, which specifically includes the following implementation methods.

[0066] Based on the captured images of the borehole wall and borehole data, a geometric model of the borehole wall, including the first stratum, the second stratum, and the stratigraphic interface, is constructed. The locations of feature points are determined using the planar geometric model; these feature points typically represent key locations or morphological changes at the stratigraphic interface.

[0067] This embodiment establishes a planar geometric model based on a transverse borehole wall planar image with two geological strata. For example... Figure 1 The horizontal axis represents the hole depth h, which gradually increases from left to right. The vertical axis represents the roll angle, expressed in radians, with values ​​ranging from 0 to 2π, gradually increasing from bottom to top.

[0068] In this embodiment, image data acquired during transverse drilling is used to generate a... Figure 5The image shows the borehole wall. The horizontal axis of the borehole wall image represents the borehole depth, gradually increasing from left to right. The vertical axis represents the roll angle, ranging from 0 to 2π, where π is 3.14. The roll angles 0, 0.5π, π, 1.5π, and 2π represent the top, right, bottom, left, and top of the borehole image, respectively. In this embodiment, the top and right coordinates of the image display window are defined as positive, and the bottom left corner of the image display area is the origin. The bottom left corner of the image coincides with the coordinate point (0,0), the display width is the same as the borehole depth, and the display height is 2π, or 6.28.

[0069] The hole wall image in this embodiment is as follows: Figure 6 , Figure 7 As shown in the diagram, the formation is divided into two strata, with a stratigraphic boundary between them. In the planar geometric model, the left side represents the first stratum, and the right side represents the second stratum, with a stratigraphic boundary between them. Point A is the leftmost peak position of the stratigraphic boundary, point B is the rightmost peak position of the stratigraphic boundary, and point C is the intersection of line AB and the boundary.

[0070] Points A, B, and C are then designated as feature points, with A corresponding to the first feature point, B to the second, and C to the third. The positions of these three feature points are obtained using a planar geometric model of the borehole wall image. The coordinates of point A are (h1, θ1), point B is (h2, θ2), and point C is (h3, θ3). The planar coordinates of the planar geometric model include the borehole depth h and the roll angle θ.

[0071] according to Figure 1 The planar geometric model shown yields the following results: Figure 2 A spatial geometric model of the borehole wall is used to more accurately describe the three-dimensional morphology of the formation interface. During the conversion from a planar geometric model to the borehole wall spatial geometric model, a roll angle of 0 radians is located above the borehole, 0.5π radians is located to the right of the borehole, π radians is located below the borehole, 1.5π radians is located to the left 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 at the shallowest borehole depth at the formation interface, and the second feature point corresponds to the peak position at the deepest borehole depth. The intersection of the line connecting the first and second feature points and the formation boundary line is used as the third feature point.

[0072] A spatial relative coordinate system is determined in the spatial geometric model of the borehole wall. The coordinates of feature points in the planar geometric model are transformed to this coordinate system for subsequent calculations. In this embodiment, the center point of the borehole opening is taken as the 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, top, and right directions are taken as positive, forming a system as follows: Figure 3The coordinate system is determined. Based on the spatial relative coordinate system, the boundary line in the planar geometric model is identified as the stratigraphic interface, and the positions of the three feature points in the planar geometric model are transformed to the stratigraphic interface in the borehole wall spatial geometric model.

[0073] like Figure 3 As shown, assume any point P i Point P is any point on the stratigraphic boundary line. i Draw a perpendicular line from point C to the Z-axis, intersecting the Z-axis at point C. Let CD be the vertical upward direction, and define ∠DCP. i For ∠Φ i , where ∠Φ i For P i P roll angle i The spatial coordinate expression of a point is:

[0074] xi = r*sin (θ) i )

[0075] yi = r * cos(θ) i )

[0076] zi=h i

[0077] The positional expressions of the three feature points A (x1, y1, z1), B (x2, y2, z2), and C (x3, y3, z3) in the spatial relative coordinate system are as follows:

[0078]

[0079]

[0080]

[0081] Furthermore, the calculation expression for the stratigraphic interface is as follows:

[0082]

[0083] In the formula, 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 based on the feature points.

[0084] Therefore, the formulas for calculating each intercept coefficient are as follows:

[0085]

[0086]

[0087]

[0088] Substituting the coordinates of the three feature points into the equations yields the X, Y, and Z axis intercept coefficients a, b, and c.

[0089] The dip direction of a stratigraphic interface is determined based on the intercept equation, and its calculation expression is as follows:

[0090]

[0091] In the formula, denoted by , where is the dip direction of the formation interface, 'a' is the X-axis intercept coefficient, 'c' is the Z-axis intercept coefficient, and 'x' is the borehole dip direction.

[0092] The range of γ is (-90°, 90°). In reality, the dip direction of the stratigraphic interface has a range of (0, 360°). Therefore, using only the arctangent angle to characterize the dip direction of the stratigraphic interface has certain limitations. However, the dip direction of the stratigraphic interface is related to the Y-axis intercept and Z-axis intercept in the calculation expression for the stratigraphic interface. Specifically, when the product of the Y-axis intercept and the Z-axis intercept bc is less than 0, the dip direction of the stratigraphic interface is... 180+ )Spend;

[0093] The dip direction of the formation interface for Spend.

[0094] After determining the numerical value of the dip direction of the stratigraphic interface, the process also includes recalibrating the dip direction of the stratigraphic interface, specifically including:

[0095] Current stratigraphic interface dip direction When the value is less than 0 degrees, the current dip direction of the stratigraphic interface The value obtained by adding 360 degrees to the numerical value is the final dip direction of the stratigraphic interface.

[0096] Current stratigraphic interface dip direction When the value is greater than 360 degrees, the current dip direction of the stratigraphic interface The value minus 360 degrees is the final dip direction of the stratigraphic interface.

[0097] Adjustments are made to the tilt direction for angles less than 0 degrees or greater than 360 degrees so that the final stratigraphic interface tilt direction is more consistent with the actual situation.

[0098] In summary, by constructing a three-dimensional spatial geometric model of the borehole wall and utilizing precise coordinate transformation and calculation methods, the accuracy of the dip direction of stratigraphic interfaces can be significantly improved. This method is not only applicable to rock strata but can also be extended to other types of geological bodies, showing broad application prospects. Accurate information on the dip direction of stratigraphic interfaces is of great significance for decision-making in fields such as geological engineering, mineral resource exploration, and tunnel construction.

[0099] Example 2

[0100] This embodiment provides a system for determining the dip direction of rock mass stratigraphic interfaces, used to implement the method for determining the dip direction of rock mass stratigraphic interfaces in Embodiment 1 above, including...

[0101] The geometric model construction module is used to construct a geometric model of the borehole wall based on the captured images of the transverse borehole wall and the borehole data. The geometric model of the borehole wall includes a first stratum, a second stratum, and a stratum interface.

[0102] The dip direction calculation module calculates the dip direction of the formation interface based on the borehole wall geometry model. The dip calculation includes corrections based on geological practices.

[0103] Those skilled in the art will understand that various aspects of the present invention can be implemented as systems, methods, or program products. Therefore, various aspects of the present invention can be specifically implemented in the following forms: a completely hardware implementation, a completely software implementation (including firmware, microcode, etc.), or a combination of hardware and software aspects, collectively referred to herein as a "circuit," "module," or "platform."

[0104] Example 3

[0105] In one embodiment of the present invention, a storage medium is also provided, specifically a computer-readable storage medium (Memory), which is a memory device in a terminal device for storing programs and data. It is understood that the computer-readable storage medium here can include both built-in storage media in the terminal device and extended storage media supported by the terminal device; it can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. The computer-readable storage medium provides storage space that stores the terminal's operating system. Furthermore, the storage space also stores one or more instructions suitable for loading and execution by a processor, which can be one or more computer programs (including program code). More specific examples of the computer-readable storage medium include: an electrical connection with one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), pluggable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof.

[0106] Computer-readable storage media also include data signals propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable storage medium can also be any readable medium other than a readable storage medium that can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the readable storage medium can be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0107] Program code for performing the operations of this invention can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device, partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0108] One or more instructions stored in a computer-readable storage medium can be loaded and executed by a processor to implement the corresponding steps of the method for determining the dip direction of the rock mass stratigraphic interface in the above embodiments; one or more instructions in the computer-readable storage medium are loaded and executed by the processor in the following steps:

[0109] A geometric model of the borehole wall is constructed based on the captured images of the transverse borehole wall and the borehole data. The geometric model of the borehole wall includes the first stratum, the second stratum, and the stratum interface.

[0110] The dip of the formation interface is calculated based on the borehole wall geometry model, and the dip calculation includes corrections based on geological practices.

[0111] Example 4

[0112] Please see Figure 8The terminal device is a computer device. In this embodiment, the computer device 60 includes a processor 61, a memory 62, and a computer program 63 stored in the memory 62 and executable on the processor 61. When executed by the processor 61, the computer program 63 implements the fluid composition calculation method in the reservoir stimulation wellbore of this embodiment. To avoid repetition, these details are not elaborated here. Alternatively, when executed by the processor 61, the computer program 63 implements the functions of each model / unit in the fluid composition calculation system in the reservoir stimulation wellbore of this embodiment. To avoid repetition, these details are not elaborated here.

[0113] Computer device 60 can be a desktop computer, laptop, handheld computer, cloud server, or other computing device. Computer device 60 may include, but is not limited to, a processor 61 and a memory 62. Those skilled in the art will understand that... Figure 8 This is merely an example of computer device 60 and does not constitute a limitation on computer device 60. It may include more or fewer components than shown, or combine certain components, or different components. For example, computer device may also include input / output devices, network access devices, buses, etc.

[0114] The processor 61 may be a central processing unit (CPU), or other general-purpose processors, CPUs, graphics processing units (GPUs), 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, quantum computing-based data processing logic units, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0115] The memory 62 can be an internal storage unit of the computer device 60, such as a hard disk or RAM of the computer device 60. The memory 62 can also be an external storage device of the computer device 60, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc. equipped on the computer device 60.

[0116] Furthermore, the memory 62 may include both internal storage units of the computer device 60 and external storage devices. The memory 62 is used to store computer programs and other programs and data required by the computer device. The memory 62 can also be used to temporarily store data that has been output or will be output.

[0117] Any references to memory, databases, or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0118] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

Claims

1. A method for determining the direction of dip of a rock body stratigraphic boundary, characterized by, The method comprises the following steps: constructing a borehole wall geometric model according to the photographed lateral borehole wall image and the borehole data, the borehole wall geometric model comprising a first stratum and a second stratum and a stratum boundary surface; determining a stratum boundary surface inclination direction according to the borehole wall geometric model; the step of constructing the borehole wall geometric model according to the photographed lateral borehole wall image and the borehole data specifically comprises the steps of: constructing a plane geometric model according to the lateral borehole wall image, determining feature point positions based on the plane geometric model, establishing the borehole wall geometric model according to the plane geometric model and the borehole data, and determining the stratum boundary surface based on the feature points in the space relative coordinate system; the step of converting the feature points to the space relative coordinate system specifically comprises the steps of: obtaining plane coordinates of the three feature points based on the plane geometric model, the plane coordinates comprising borehole depths and lateral roll angles, and converting the plane coordinates of the three feature points obtained by the plane geometric model to the space relative coordinate system, the space relative coordinate system being a coordinate origin with a lateral borehole orifice center, and coordinate axes being a borehole direction, a vertical direction and a horizontal direction; the calculation expression of the stratum boundary surface inclination direction is: wherein is the dip direction of the formation boundary surface, a is the dip angle of the formation boundary surface, is the intercept coefficient, c is the Z-axis intercept coefficient, and x is the borehole dip direction; After the numerical value of the tilt direction of the formation boundary surface is determined, the method further comprises correcting the tilt direction of the formation boundary surface according to geological experience, specifically comprising: when the numerical value of the tilt direction of the formation boundary surface is less than 0 degrees the tilt direction of the current formation boundary surface is the numerical value of the tilt direction of the formation boundary surface the tilt direction of the current formation boundary surface is the numerical value of the tilt direction of the formation boundary surface the tilt direction of the current formation boundary surface is the numerical value of the tilt direction of the formation boundary surface the tilt direction of the current formation boundary surface is the numerical value of the tilt direction of the formation boundary surface 2. The method of claim 1, wherein the calculation expression of the stratum boundary surface is: in the formula, a is an X-axis intercept coefficient, b is a Y-axis intercept coefficient, and c is a Z-axis intercept coefficient, the intercept coefficients being determined according to the feature point position coordinates.

3. The method of claim 1, wherein after the stratum boundary surface inclination direction is determined, the method further comprises adjusting the stratum boundary surface inclination direction according to the Y-axis intercept coefficient b and the Z-axis intercept coefficient c, specifically comprising the steps of: when the product of the Y-axis intercept coefficient b and the Z-axis intercept coefficient c is less than 0, the stratigraphic interface tilt direction is 180 + (0 ) degrees; , the stratigraphic interface inclination direction is degrees.

4. A system for determining the dip direction of a rock formation boundary surface for implementing the method of determining the dip direction of a rock formation boundary surface according to any one of claims 1 to 3, characterized in that The method comprises the following steps: a geometric model construction module configured to construct a borehole wall geometric model according to the photographed lateral borehole wall image and the borehole data, the borehole wall geometric model comprising a first stratum and a second stratum and a stratum boundary surface; an inclination direction calculation module configured to calculate a stratum boundary surface inclination direction according to the borehole wall geometric model.

5. A computing device, comprising: The method comprises the following steps: one or more processors, memories and one or more programs, wherein the one or more programs are stored in the memories and configured to be executed by the one or more processors, and the one or more programs comprise steps for executing the method for determining the stratum boundary surface inclination direction of the rock mass according to any one of claims 1 to 3.

6. A computer-readable storage medium storing one or more programs, the one or more programs comprising instructions that when executed by a computer cause the computer to perform a method of any of claims 1-5. The one or more programs comprise instructions for causing the computing device to execute the method for determining the stratum boundary surface inclination direction of the rock mass according to any one of claims 1 to 3 when executed by the computing device.

Images