System and analysis method for recognizing geological features of coal and rock strata through borehole video

Abstract

The invention discloses a system for identifying coal and rock stratum geologic features through borehole videos, which relates to the technical field of mine well logging and geology and comprises an identification module, a setting module, a fitting module, an interpretation module and a joint comprehensive analysis module. The invention further discloses an analysis method of the system for recognizing the geological features of the coal rock stratum through the borehole video. The analysis method comprises the following steps of 1) recognizing a drawn map; 2) comparing and displaying; 3) determining a map; 4) setting nodes; and 5) comprehensive analysis. According to the method, through drawing and carrying out vectorization, chromaticity, particle size and occurrence analysis processing on coal rock layer drilling video data, drilling track data and the like of different depths and directions, and model establishment and numerical interpretation of lithology video data, different system data are automatically associated, point-line-plane combination can be realized, and a real three-dimensional geologic model is formed. The rock stratum particle size, bedding and other construction parameters are clearly depicted, the explanation accuracy of various data is improved, and linkage comprehensive analysis can be efficiently carried out.

Description

Technical Field

[0001] The present invention relates to the field of mine logging and geological technology, and in particular to a system and analysis method for identifying geological characteristics of coal and rock layers via drilling videos. Background Art

[0002] The application of video data to identify the geological characteristics of coal and rock formations in conventional mine logging and borehole observation mainly relies on the subjective judgment and classification of interpreters, which is often restricted by the clarity of the video data and the level of the interpreters. In actual applications, it is mostly qualitative analysis, especially for high-precision and high-intelligence recognition scenarios. The conditions of use are relatively limited, and the conclusions are often simply applied to different data analysis systems.

[0003] In actual data analysis, the electronic rock column is vectorized, and the data of chromaticity, particle size and occurrence are gapped. On this basis, the derivative of each curve is calculated to analyze the changing law of the curve; in the 2R*3cm 3D map, it is spread as a plane map, and the particle size curve is generated by the number of curve derivatives whose sum is 0; in the 2R*3cm 3D map, it is spread as a plane map, and the occurrence curve is generated by the number of curve derivatives whose sum is not 0; in the 2R*3cm 3D map, it is spread as a plane map, and the color change of RGB is analyzed to generate a chromaticity curve; in the 2R*3cm 3D map, it is spread as a plane map, and the color values ​​of RGB are leveled to generate a grayscale curve; the interpretation information of the geological characteristics of the coal rock formation is most intuitively analyzed in the form of logging curves.

[0004] The analysis method of identifying geological characteristics of coal and rock formations using drilling video data can effectively collect multi-parameter data of working face drilling using special borehole logging instruments. Through the study of physical models, data processing and analysis, qualitative and positioning perspective interpretations of the interior of the mine working face can be performed, and the trend changes, occurrence, and distribution of geological structures of coal and rock can be accurately depicted. The three-dimensional geological digital map of the mining working face can be completed, providing reliable technical support and decision-making basis for safety evaluation, hidden danger investigation, emergency rescue, and precise mining. At present, the existing lithology analysis methods have long sampling and analysis time, poor integration with production, or low accuracy, and require manual association with other data for qualitative analysis, which is difficult to meet the accuracy and production requirements.

[0005] Therefore, in response to the technical problems described above, the applicant has researched and designed a system and analysis method for identifying geological characteristics of coal strata using drilling videos. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide a system for identifying the geological characteristics of coal and rock formations by using drilling videos. The purpose is to automatically associate the data of different systems by vectorizing, analyzing the color, particle size and occurrence of drilling video data and drilling trajectory data of coal and rock formations at different depths and orientations of the borehole, so as to establish a true three-dimensional geological model, improve the accuracy of the interpretation of various data, and efficiently carry out linked comprehensive analysis.

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is: a system for identifying geological characteristics of coal and rock formations by drilling videos, comprising an identification module, a setting module, a fitting module, an interpretation module, and a joint comprehensive analysis module;

[0008] The recognition module recognizes the drilling video data in combination with the layout file;

[0009] The setting module sets the drilling video data to be displayed in the entire space within the detection range;

[0010] The fitting module is used to comprehensively analyze and fit the trajectory and map of the drilling video data;

[0011] The interpretation module sets the drilling video data analysis node and determines the scale of the drilling video data;

[0012] The linkage comprehensive analysis module is used to conduct comprehensive analysis of drilling video data at different angles and depths.

[0013] Furthermore, the recognition module recognizes the drilling video data from three aspects: different directions, different angles and different lithologies.

[0014] Furthermore, the fitting module fits the drilling video data from different angles and depths.

[0015] Furthermore, the drilling video data analysis node is linked with the known data node, and the drilling video data analysis node is linked with the measured data node.

[0016] The present invention also discloses a method for analyzing a system for identifying geological characteristics of coal and rock formations using drilling videos, which is characterized by comprising the following steps:

[0017] 1) Identify and draw maps: Identify the drilling video data from different directions, angles and lithologies, and use the layout file to draw maps of color, occurrence and grain size respectively;

[0018] 2) Contrast display: set up a single gauge, peek, and track data to display the entire space within the detection range;

[0019] 3) Determine the map: Fit the trajectory and map of the drilling video data, and analyze and determine the basic property map of the lithology;

[0020] 4) Node setting: set logging, peek and trajectory data nodes, link them with known data nodes, set color, occurrence and particle size nodes to link with measured nodes in each direction, and set the scale of drilling video data;

[0021] 5) Comprehensive analysis: Conduct a coordinated comprehensive analysis of different drilling video data.

[0022] The advantages of the present invention over the prior art are: by drawing and vectorizing, colorimetric, particle size and occurrence analysis and processing of coal and rock strata drilling video data and drilling trajectory data at different depths and orientations, as well as model building and numerical interpretation of lithology video data, the present invention automatically associates data from different systems, and can combine points, lines and surfaces to form a true three-dimensional geological model. The present invention can clearly depict structural parameters such as rock strata particle size and bedding, improve the accuracy of interpretation of various data, and can efficiently conduct linkage comprehensive analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a comparative schematic diagram of the characteristic research of a system for identifying geological characteristics of coal and rock formations through drilling videos of the present invention.

[0024] Figure 2 The present invention discloses a system for identifying geological characteristics of coal and rock formations through drilling videos, which is a schematic diagram for collecting drilling video data and drilling trajectories of coal and rock formations in all directions.

[0025] Figure 3 It is a schematic diagram of data processing and analysis of a system for identifying geological characteristics of coal and rock layers using drilling videos of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] Combined with Figures 1 to 3 ,A system for identifying geological characteristics of coal and rock formations using drilling videos, including an identification module, a setting module, a fitting module, an interpretation module, and a joint comprehensive analysis module;

[0029] The recognition module recognizes the drilling video data in combination with the layout file;

[0030] The setting module sets the drilling video data to be displayed in the entire space within the detection range;

[0031] The fitting module is used to comprehensively analyze and fit the trajectory and map of the drilling video data;

[0032] The interpretation module sets the drilling video data analysis node and determines the scale of the drilling video data;

[0033] The linkage comprehensive analysis module is used to conduct comprehensive analysis of drilling video data at different angles and depths.

[0034] Furthermore, the recognition module recognizes the drilling video data from three aspects: different directions, different angles and different lithologies.

[0035] Furthermore, the fitting module fits the drilling video data from different angles and depths.

[0036] Furthermore, the drilling video data analysis node is linked with the known data node, and the drilling video data analysis node is linked with the measured data node.

[0037] The present invention also discloses a method for analyzing a system for identifying geological characteristics of coal and rock formations using drilling videos, which is characterized by comprising the following steps:

[0038] 1) Identify and draw maps: Identify the drilling video data from different directions, angles and lithologies, and use the layout file to draw maps of color, occurrence and grain size respectively;

[0039] 2) Contrast display: set up a single gauge, peek, and track data to display the entire space within the detection range;

[0040] 3) Determine the map: Fit the trajectory and map of the drilling video data, and analyze and determine the basic property map of the lithology;

[0041] 4) Node setting: set logging, peek and trajectory data nodes, link them with known data nodes, set color, occurrence and particle size nodes to link with measured nodes in each direction, and set the scale of drilling video data;

[0042] 5) Comprehensive analysis: Conduct a coordinated comprehensive analysis of different drilling video data.

[0043] When implementing it specifically,

[0044] 1) Research and system establishment of drilling video data of coal, sedimentary rock and igneous rock: Different rocks have different display characteristics, such as the granular structure of sandstone, the sedimentary structure of coal and the different changes of metamorphic rock. Based on the collection and analysis of clear and reliable drilling video data of the working face and adjacent boreholes, a feasible system is established by establishing certain algorithms to realize the vectorization and model output of image data, so as to judge the type of coal and rock layers in the local area and provide a basis for overall data analysis and interpretation.

[0045] 2) Data collection: Utilize all available boreholes such as advance water exploration boreholes for underground tunnel excavation, water injection holes before working face recovery, thick coal exploration holes, gas extraction holes, etc., and use special mining video imaging logging instruments to carry out borehole logging work, collect high-resolution video images and all-round hole inclination measurement trajectory (azimuth, inclination angle) data, obtain first-hand information, and provide guarantee for subsequent work.

[0046] 3) Data analysis and processing: Input the drilling data, overlay and equalize the drilling video data of coal and rock formations at different depths and orientations, conduct a systematic analysis from point to surface, perform algorithm fitting and interpolation processing through the drilling density, select the optimal fitting method, expand the surface to the volume, thus forming a true three-dimensional geological model, clearly depicting the structural parameters such as coal and rock formation particle size and bedding, and comprehensively analyze and judge the changing trend of coal and rock formations in combination with the video situation, predict the development of geological structures, and identify the structural occurrence.

[0047] In summary, the above system can analyze and process the coal and rock formation drilling video data, drilling trajectory data, etc. at different depths and orientations of the drilling, and perform vectorization, colorimetry, particle size and occurrence analysis and processing, as well as establish certain algorithms to achieve vectorization and model output of image data, thereby ensuring the accuracy of various interpretations.

[0048] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A system for identifying geological characteristics of coal and rock formations using drilling videos, characterized in that: It includes identification module, setting module, fitting module, interpretation module and joint comprehensive analysis module; The recognition module recognizes the drilling video data in combination with the layout file; The setting module sets the drilling video data to be displayed in the entire space within the detection range; The fitting module is used to comprehensively analyze and fit the trajectory and map of the drilling video data; The interpretation module sets the drilling video data analysis node and determines the scale of the drilling video data; The linkage comprehensive analysis module is used to conduct comprehensive analysis of drilling video data at different angles and depths.

2. The system for identifying geological characteristics of coal and rock formations using drilling videos according to claim 1 is characterized in that: The identification module identifies the drilling video data from three aspects: different directions, different angles and different lithologies.

3. The system for identifying geological characteristics of coal and rock formations using drilling videos according to claim 2 is characterized in that: The fitting module fits the drilling video data from different angles and depths.

4. The system for identifying geological characteristics of coal and rock formations using drilling videos according to claim 3 is characterized in that: The drilling video data analysis node is linked with the known data node, and the drilling video data analysis node is linked with the measured data node.

5. The method for analyzing the system for identifying geological characteristics of coal and rock formations using drilling video according to claims 1 to 4, characterized in that: The following steps are involved: 1) Identify and draw maps: Identify the drilling video data from different directions, angles and lithologies, and use the layout file to draw maps of color, occurrence and grain size respectively; 2) Contrast display: set up a single gauge, peek, and track data to display the entire space within the detection range; 3) Determine the map: Fit the trajectory and map of the drilling video data, and analyze and determine the basic property map of the lithology; 4) Node setting: set logging, peek and trajectory data nodes, link them with known data nodes, set color, occurrence and particle size nodes to link with measured nodes in each direction, and set the scale of drilling video data; 5) Comprehensive analysis: Conduct a coordinated comprehensive analysis of different drilling video data.

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