Graphical geological logging method for exploratory well
By using three-dimensional coordinate systems and feature lines in the exploration well catalog to describe the spatial position of the exploration well, setting the expansion line and sub-section positions, and performing section body cataloging and standardized entry, the problem that the exploration well catalog cannot be restored to the three-dimensional space is solved, and geological data is improved Efficiency and accuracy of management and analysis.
Patent Information
- Application Number
- CN202411350838.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2024-12-27
AI Technical Summary
The existing well cataloging methods cannot be restored to three-dimensional space, resulting in poor data uniformity and comparability, making it difficult to establish spatial relationships with other exploration results, affecting three-dimensional geological modeling and spatial analysis.
Use three-dimensional coordinate system and feature lines to describe the spatial position of the exploration well, set the expansion line and sub-section position of the side wall of the exploration well, establish an electronic expansion diagram and display diagram coordinate system, record geological object data through section cataloging, and establish a standard dictionary library, convert two-dimensional records to three-dimensional coordinate system.
It solves the problem that exploration well catalogs cannot be restored to three-dimensional space, improves the efficiency and accuracy of geological data management, supports in-depth analysis of complex geological relationships, and enhances the unity and comparability of data.
Smart Images
Figure CN119206113A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of geological exploration, and in particular to a graphical geological logging method for exploration wells. Background Art
[0002] Geological exploration is a common means of understanding geological conditions before engineering construction. Drilling is the main common exploration method. In addition, the construction of large-scale infrastructure such as hydropower stations also requires the arrangement of exploration wells and pits. Through exploration wells, the spatial distribution characteristics and engineering properties of fault fracture zones, weak mud interlayers, and sliding surfaces (zones) can be observed, and the reliability of drilling and geophysical data or results can be tested. The geological conditions (outcrops) revealed by the exploration wells can also be recorded and described in detail to obtain more accurate geological data. Due to the deepness of the exploration wells, circular well excavation is often adopted considering the stability of support.
[0003] The writing habits of different geologists may cause inconsistent record formats, affecting the uniformity and comparability of data. Converting paper records to electronic formats requires additional time and labor costs. Data usually need to be re-entered into the computer system before analysis, which is prone to errors. Even if the electronic files are converted, they are still independent two-dimensional interfaces and lack uniformity. It is difficult to establish spatial relationships with other exploration results (such as boreholes, trenches, and pits), which directly affects the utilization rate of the cataloged data and cannot be directly used in three-dimensional geological modeling and spatial analysis.
[0004] With the advancement of science and technology, many geological exploration institutions have begun to adopt digital recording methods, such as using tablets, smart phones and other mobile devices to collect data on site, and using special software for data management, which can greatly improve work efficiency and data quality. Some institutions have studied the use of electronic coordinate paper to replace paper coordinate paper for well cataloging, but they have only changed the form of the recording carrier and have not solved three practical problems in the overall exploration process: 1) Well cataloging uses a local two-dimensional coordinate system for sketching and submitting results, and does not restore the cataloging results to true three-dimensional space, making it difficult to establish spatial associations with geological data obtained by other exploration methods, which creates practical obstacles for subsequent three-dimensional geological modeling and spatial geological analysis; 2) Existing recording methods are usually limited to recording the geometric shape and basic properties of geological boundaries, and fail to fully consider the spatial connection and internal logic between these boundaries. This method focuses on describing surface phenomena, but pays insufficient attention to the interactions and correlations between geological structures. The recorded information is relatively simple and lacks in-depth analysis of complex geological relationships. 3) The degree of standardization of geological descriptions is insufficient. The description of geological characteristics is greatly affected by the cognitive ability and experience of on-site geologists. The degree of understanding and recording of geological phenomena are inconsistent, which affects the overall quality of basic data and makes it impossible to expand the direct use of original data for information analysis. Summary of the invention
[0005] The technical problem solved by the present invention is to provide a graphical geological logging method for exploration wells, so as to solve the problem that the existing exploration well logging cannot be restored to three-dimensional space.
[0006] The present invention solves the above technical problems by adopting a technical solution: a method for graphical geological logging of exploration wells, comprising the following steps:
[0007] S1. Use a three-dimensional coordinate system and characteristic lines to describe the spatial position of the exploration well and obtain the radius and depth of the exploration well;
[0008] S2. Setting the well sidewall development line on the well sidewall and setting the development direction, establishing the coordinate system of the electronic development diagram of the well sidewall, and obtaining the correlation relationship between the coordinate system of the electronic development diagram of the well sidewall and the three-dimensional coordinate system; setting the well sub-section position perpendicular to the characteristic line, establishing the coordinate system of the electronic display diagram of the well sub-section, and obtaining the correlation relationship between the coordinate system of the electronic display diagram of the well sub-section and the three-dimensional coordinate system;
[0009] S3, recording geological object data in the coordinate system of the electronic development map of the exploration well side wall and the electronic display map of the exploration well sub-section by using the segment body cataloging method, and obtaining the corresponding electronic development map of the exploration well side wall and the electronic display map of the exploration well sub-section;
[0010] S4. Establish a standard dictionary library, and enter geological object attribute information in the electronic development diagram of the exploration well sidewall and the electronic display diagram of the exploration well sub-section in the form of the standard dictionary library;
[0011] S5. According to the correlation between the coordinate system of the electronic development map of the exploration well side wall and the three-dimensional coordinate system, the geological object data recorded in the electronic development map of the exploration well side wall is converted into the exploration well in the three-dimensional coordinate system; according to the correlation between the coordinate system of the electronic display map of the exploration well sub-section and the three-dimensional coordinate system, the geological object data recorded in the electronic display map of the exploration well sub-section is converted into the exploration well in the three-dimensional coordinate system.
[0012] Furthermore, the graphical geological cataloging method for exploration wells also includes: S6, comparing, verifying and correcting the geological data obtained by the exploration wells in the three-dimensional coordinate system with other surveying means consistent with the three-dimensional coordinate system, wherein the geological data obtained by other surveying means consistent with the three-dimensional coordinate system include boreholes and exploration pits.
[0013] Furthermore, the characteristic line is the axis of the exploration well, the starting point of the axis is the center of the wellhead, and the direction of the axis is vertically downward.
[0014] Furthermore, the position of the development line of the exploration well sidewall is represented by the development line azimuth.
[0015] Furthermore, the location of the exploration well sub-section is expressed in depth.
[0016] Furthermore, the origin of the coordinate system of the electronic development map of the exploration well sidewall is the intersection of the development line and the wellhead, the horizontal coordinate range is 0 to the circumference of the wellhead, and the vertical coordinate range is 0 to the depth of the exploration well.
[0017] Furthermore, the origin of the coordinate system of the electronic display diagram of the exploration well sub-section is the intersection of the exploration well sub-section and the characteristic line, the horizontal axis is the ray horizontally projected from the intersection of the exploration well sub-section and the characteristic line toward the development line, and the vertical axis is the horizontal axis rotated 90 degrees counterclockwise.
[0018] Furthermore, in S3, geological objects are divided into continua, discontinua and separate linear bodies. The segment body cataloging method is used to outline the continua and discontinua in the coordinate system of the electronic development map of the exploration well side wall, and to outline the separate linear bodies in the coordinate system of the electronic display map of the exploration well sub-section.
[0019] Furthermore, the continuum has an upper and lower sequence relationship and upper and lower boundaries, the discontinuum does not have an upper and lower sequence relationship, but has upper and lower boundaries or the upper and lower boundaries are combined, and the single line body has neither an upper and lower sequence relationship nor upper and lower boundaries.
[0020] Furthermore, the continuum includes stratum lithology, and the geological boundaries of the stratum lithology are outlined in the coordinate system of the electronic development map of the exploration well side wall to obtain an electronic development map of the exploration well side wall with a matching relationship between the stratum lithology and the geological boundaries, and the stratum lithology includes sandstone, mudstone and dolomite; the discontinuum includes sliding zones and sliding surfaces, and the sliding zones and sliding surfaces are outlined in the coordinate system of the electronic development map of the exploration well side wall to obtain an electronic development map of the exploration well side wall with the sliding zones and sliding surfaces, specifically: first outline the upper boundary of the sliding zone, and then automatically shift downward according to the direction of the development line according to the thickness of the sliding zone The lower boundary of the sliding zone is generated by specifying the thickness distance to obtain the sliding zone, and a single line is drawn to represent the sliding surface to obtain the sliding surface, thereby obtaining an electronic expansion diagram of the side wall of the exploration well having the sliding zone and the sliding surface; the separate line body includes an intrusion body and a linear seepage, and the intrusion body is outlined with a closed line in the coordinate system of the electronic display diagram of the exploration well sub-section at the depth of the intrusion body to obtain an electronic display diagram of the exploration well sub-section having the intrusion body, and the linear seepage of groundwater is outlined with a single non-closed line in the coordinate system of the electronic display diagram of the exploration well sub-section at the depth of the linear seepage to obtain an electronic display diagram of the exploration well sub-section having the linear seepage.
[0021] Beneficial effects of the invention: The invention provides a graphical geological cataloging method for an exploration well, which adopts a three-dimensional coordinate system and characteristic lines to describe the spatial position of the exploration well, sets an exploration well side wall expansion line on the exploration well side wall, sets an expansion direction, and establishes an electronic expansion map of the exploration well side wall, obtains the correlation between the coordinate system of the electronic expansion map of the exploration well side wall and the three-dimensional coordinate system, sets the exploration well sub-section position perpendicular to the characteristic line, establishes an electronic display map coordinate system of the exploration well sub-section, obtains the correlation between the coordinate system of the electronic display map of the exploration well sub-section and the three-dimensional coordinate system, and adopts a segment body cataloging method to record geological object data in the coordinate system of the electronic expansion map of the exploration well side wall and the coordinate system of the electronic display map of the exploration well sub-section, and obtains The corresponding electronic development map of the exploration well side wall and the electronic display map of the exploration well sub-section are obtained, a standard dictionary library is established, and the geological object attribute information is entered into the electronic development map of the exploration well side wall and the electronic display map of the exploration well sub-section in the form of the standard dictionary library; according to the association relationship between the coordinate system of the electronic development map of the exploration well side wall and the three-dimensional coordinate system, the geological object data recorded in the electronic development map of the exploration well side wall is converted into the exploration well in the three-dimensional coordinate system; according to the association relationship between the coordinate system of the electronic display map of the exploration well sub-section and the three-dimensional coordinate system, the geological object data recorded in the electronic display map of the exploration well sub-section is converted into the exploration well in the three-dimensional coordinate system, which solves the problem that the exploration well catalog cannot be restored to the three-dimensional space. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the process of the graphical geological logging method for exploration wells provided by the present invention;
[0023] Figure 2 is a schematic diagram of an exploration well in a three-dimensional coordinate system provided by the present invention;
[0024] Figure 3 The electronic development map coordinate system of the side wall of the exploration well provided by the present invention is developed along the clockwise direction with the development line having an azimuth angle of θ;
[0025] Figure 4 The electronic development map coordinate system of the side wall of the exploration well provided by the present invention is developed along the counterclockwise direction with the development line having an azimuth angle of θ;
[0026] Figure 5 It is the coordinate system of the electronic display diagram of the exploration well sub-section with a sub-section depth of h provided by the present invention;
[0027] Figure 6 The electronic development diagram of the sidewall of the exploration well provided by the present invention has a matching relationship between the stratum lithology and the geological boundary;
[0028] Figure 7 It is an electronic development diagram of the side wall of the exploration well with a sliding zone and a sliding surface provided by the present invention;
[0029] Figure 8 It is an electronic display diagram of a sub-section of an exploration well with an intrusion body provided by the present invention;
[0030] Fig. 9 It is an electronic display diagram of a sub-section of an exploration well with linear seepage provided by the present invention;
[0031] Where OXYZ represents the three-dimensional coordinate system, r represents the circular radius of the exploration well, H represents the depth of the exploration well, h represents the depth of the exploration well sub-section, h1 represents the depth of the exploration well sub-section where the intrusion body is located, and h2 represents the depth of the exploration well sub-section where the linear seepage is located. DETAILED DESCRIPTION
[0032] The present invention aims to solve the problem that the existing exploration well logging cannot be restored to three-dimensional space, and provides a graphical geological logging method for exploration wells. Figure 1 As shown, the following steps are included:
[0033] S1. Use a three-dimensional coordinate system and characteristic lines to describe the spatial position of the exploration well, and obtain the exploration well radius r and exploration well depth H;
[0034] Specifically, usually, the characteristic line is the axis of the exploration well, the starting point of the axis is the center of the wellhead, and the direction of the axis is vertically downward, such as Figure 2 shown.
[0035] S2. Setting the well sidewall development line on the well sidewall and setting the development direction, establishing the coordinate system of the electronic development diagram of the well sidewall, and obtaining the correlation relationship between the coordinate system of the electronic development diagram of the well sidewall and the three-dimensional coordinate system; setting the well sub-section position perpendicular to the characteristic line, establishing the coordinate system of the electronic display diagram of the well sub-section, and obtaining the correlation relationship between the coordinate system of the electronic display diagram of the well sub-section and the three-dimensional coordinate system;
[0036] Specifically, the position of the well sidewall development line is represented by the development line azimuth. The development direction includes clockwise and counterclockwise directions. The coordinate system of the electronic development map of the well sidewall developed along the clockwise direction with the development line having an azimuth of θ is as follows: Figure 3 As shown, the origin of the coordinate system of the electronic development map of the exploration well side wall is the intersection of the development line and the wellhead, the horizontal coordinate range is 0 to the circumference of the wellhead 2πr, and the vertical coordinate range is 0 to the exploration well depth H. The coordinate system of the electronic development map of the exploration well side wall developed in the counterclockwise direction along the development line with an azimuth angle of θ is as follows: Figure 4 As shown, the origin of the coordinate system of the electronic development map of the exploration well side wall is the intersection of the development line and the wellhead, the horizontal coordinate range is the circumference of the wellhead 2πr to 0, and the vertical coordinate range is 0 to the exploration well depth H. In the same geological exploration, usually only one development direction is selected, and the azimuth is centered on the wellhead circle center, starting from the east direction, and rotating counterclockwise to the position of the development line.
[0037] The unfolding line is obtained by rotating counterclockwise by θ with the X-axis as the starting point and the import center as the due east direction, where
[0038] The location of the exploration well sub-section is expressed by depth h. The origin of the coordinate system of the electronic display diagram of the exploration well sub-section is the intersection of the exploration well sub-section and the characteristic line. The horizontal axis is the ray horizontally projected from the intersection of the exploration well sub-section and the characteristic line toward the development line. The vertical axis is the horizontal coordinate rotated 90 degrees counterclockwise, such as Figure 5 As shown, the horizontal axis ranges from -r to r, and the vertical axis ranges from -r to r.
[0039] S3, recording geological object data in the coordinate system of the electronic development map of the exploration well side wall and the electronic display map of the exploration well sub-section by using the segment body cataloging method, and obtaining the corresponding electronic development map of the exploration well side wall and the electronic display map of the exploration well sub-section;
[0040] When recording geological object data, establishing the connection between geological objects and geological boundaries based on the topological relationship of geological objects can improve the efficiency and accuracy of geological data management, and can also provide important support in subsequent data analysis and geological modeling, which is helpful for in-depth analysis of complex geological relationships; it is convenient to directly call the corresponding geological boundary data for single geological three-dimensional modeling and statistical analysis; it is convenient for subsequent analysis of the overall geological object, and can be directly linked to the corresponding geological boundaries that have been determined on site, reducing subsequent large-scale data processing, and avoiding a large number of errors when three-dimensional geological stratification, layer thickness statistics, structural surface thickness statistics, etc. need to be manually re-matched due to lack of on-site related data reference.
[0041] Specifically, the geological objects are divided into continua, discontinua and separate linear bodies. The section body cataloging method is used to outline the continua and discontinua in the coordinate system of the electronic development map of the exploration well side wall, and the separate linear body is outlined in the coordinate system of the electronic display map of the exploration well sub-section. The continuum has an upper and lower sequence relationship and upper and lower boundaries, such as stratigraphic lithology. The discontinuum does not have an upper and lower sequence relationship, but has upper and lower boundaries or the upper and lower boundaries are combined, such as a sliding zone and a sliding surface. The separate linear body has neither an upper and lower sequence relationship nor upper and lower boundaries, such as an intrusion and a linear seepage.
[0042] For example:
[0043] The geological boundaries of the stratum lithology are outlined in the coordinate system of the electronic development map of the exploration well side wall, and the electronic development map of the exploration well side wall with the matching relationship between the stratum lithology and the geological boundaries is obtained. The stratum lithology includes sandstone, mudstone and dolomite, such as Figure 6 shown.
[0044] The sliding zone and sliding surface are outlined in the coordinate system of the electronic development map of the exploration well sidewall, and the electronic development map of the exploration well sidewall with the sliding zone and sliding surface is obtained, such as Figure 7As shown, specifically: firstly, the upper boundary of the sliding zone is outlined, such as sliding zone 1, sliding zone 2, and sliding zone 3; then, according to the thickness of the sliding zone, the lower boundary of the sliding zone is automatically offset downward by a specified thickness distance in the direction of the unfolding line to obtain sliding zone 1, sliding zone 2, and sliding zone 3; a single line is outlined to indicate the sliding surface, and a sliding surface, such as sliding surface 1, is obtained, thereby obtaining an electronic unfolding diagram of the sidewall of the exploration well with sliding zones and sliding surfaces;
[0045] In the coordinate system of the electronic display diagram of the exploration well sub-section at the depth of the intrusion body, the intrusion body is outlined with a closed line to obtain the electronic display diagram of the exploration well sub-section with the intrusion body, such as Figure 8 As shown, in subsequent geological analysis, such data can be used to calculate the size of the intrusion.
[0046] In the coordinate system of the electronic display diagram of the exploration well sub-section at the depth of the linear seepage, a single non-closed line is used to outline the linear seepage of groundwater, and an electronic display diagram of the exploration well sub-section with linear seepage is obtained, such as Fig. 9 As shown, in the subsequent geological analysis, such data can be used to calculate the seepage area.
[0047] S4. Establish a standard dictionary library, and enter geological object attribute information in the electronic development diagram of the exploration well sidewall and the electronic display diagram of the exploration well sub-section in the form of the standard dictionary library;
[0048] Specifically, the standard dictionary includes stratum type, structural surface, weathering, unloading, sliding zone, rock structure segmentation, groundwater segmentation, karst and groundwater seepage; the stratum type includes overburden and bedrock, the soil types of the overburden include coarse sand, medium sand, fine sand, silt, clay and gravel soil, etc., the genesis types of the overburden include artificial accumulation, alluvial, flood, colluvial, slope accumulation and residual accumulation, etc.; the genesis types of bedrock include sedimentary rock, metamorphic rock, intrusive rock, rock flow layer; the rock types of bedrock include hard rock, medium hard rock, relatively soft rock and soft rock, etc.; the structural surface includes fracture type, extension, structural surface grade, groundwater condition, filling The fracture types include normal fault, reverse fault, thrust fault, shear fracture (joint), structural fracture (joint) and primary fracture (joint); the extension includes single-wall penetration and multi-wall penetration; the structural surface grades include Ⅰ, Ⅱ, Ⅲ, Ⅳ and Ⅴ; the groundwater conditions include wet, seepage, dripping, linear flow, gushing and dry; the filling conditions include broken particles, unclear, cemented, no filling, rock block and debris type, rock debris and mud type and mud and rock debris type; the structural types include compression zone, bedding dislocation zone, bedding dislocation zone and deep fracture; the undulation and roughness conditions include straight rough, undulating rough, flat Straight smooth and undulating smooth; the degree of opening includes closed, slightly open and open; weathering includes strongly weathered interlayer, fully weathered, strongly weathered, weakly weathered lower section, weakly weathered upper section, weakly weathered, slightly weathered, and no weathering of the overburden; unloading includes no unloading, strong unloading, weak unloading and deep unloading; the sliding zone includes mechanical type, sliding surface characteristics and material composition, among which the mechanical type includes shear sliding and tension sliding, the sliding surface characteristics include bedding, bedding, composite landslide, accumulation landslide, dumping landslide and buckling landslide, and the material composition includes broken rock, clay minerals, carbonate minerals, ferromagnesium silicate minerals, graphite, quartz and feldspar; the rock layer structure segmentation includes The degree of rock mass integrity, the degree of structural surface development and the rock mass structure type, among which the degree of rock mass integrity includes complete, relatively complete, poor integrity, relatively broken and broken, the degree of structural surface development includes very developed, developed, relatively developed, moderately developed, slightly developed and undeveloped, and the rock mass structure type includes block structure, layered structure, mosaic structure, fragmented structure and scattered structure; groundwater segmentation includes groundwater state, specifically wet, seepage, dripping, linear flow, gushing and dry; karst includes lava type, specifically cave type, fissure type, pipeline type and large karst cave; groundwater seepage includes seepage point type, specifically rising spring and descending spring. By pulling down and selecting the corresponding content in the standard dictionary library, the input geological object attribute information can be standardized, the errors and inconsistencies of manual input can be reduced, and the standardization of geological description can be improved. The geological data after standardized input is conducive to the automatic sorting of subsequent internal analysis work, and a good foundation for big data statistical analysis can be established, such as dominant structural surface statistics, stereographic projection analysis, and output of geological standard reports.
[0049] S5. According to the correlation between the coordinate system of the electronic development map of the exploration well side wall and the three-dimensional coordinate system, the geological object data recorded in the electronic development map of the exploration well side wall is converted into the exploration well in the three-dimensional coordinate system; according to the correlation between the coordinate system of the electronic display map of the exploration well sub-section and the three-dimensional coordinate system, the geological object data recorded in the electronic display map of the exploration well sub-section is converted into the exploration well in the three-dimensional coordinate system.
[0050] In this way, the geological data recorded in two dimensions are converted into the exploration well in the three-dimensional coordinate system, solving the problem that the existing exploration well catalog cannot be restored to three-dimensional space.
[0051] The graphical geological cataloging method for exploration wells provided by the present invention also includes: S6, comparing, verifying and correcting the geological data obtained by the exploration wells in the three-dimensional coordinate system with other surveying means consistent with the three-dimensional coordinate system. The geological data obtained by other surveying means consistent with the three-dimensional coordinate system include drilling holes and exploration pits, which are conducive to geological analysis.
Claims
1. A graphical geological logging method for exploration wells, characterized in that: The following steps are involved: S1. Use a three-dimensional coordinate system and characteristic lines to describe the spatial position of the exploration well and obtain the radius and depth of the exploration well; S2. Setting the well sidewall development line on the well sidewall and setting the development direction, establishing the coordinate system of the electronic development diagram of the well sidewall, and obtaining the correlation relationship between the coordinate system of the electronic development diagram of the well sidewall and the three-dimensional coordinate system; setting the well sub-section position perpendicular to the characteristic line, establishing the coordinate system of the electronic display diagram of the well sub-section, and obtaining the correlation relationship between the coordinate system of the electronic display diagram of the well sub-section and the three-dimensional coordinate system; S3, recording geological object data in the coordinate system of the electronic development map of the exploration well side wall and the electronic display map of the exploration well sub-section by using the segment body cataloging method, and obtaining the corresponding electronic development map of the exploration well side wall and the electronic display map of the exploration well sub-section; S4. Establish a standard dictionary library, and enter geological object attribute information in the electronic development diagram of the exploration well sidewall and the electronic display diagram of the exploration well sub-section in the form of the standard dictionary library; S5. According to the correlation between the coordinate system of the electronic development map of the exploration well side wall and the three-dimensional coordinate system, the geological object data recorded in the electronic development map of the exploration well side wall is converted into the exploration well in the three-dimensional coordinate system; according to the correlation between the coordinate system of the electronic display map of the exploration well sub-section and the three-dimensional coordinate system, the geological object data recorded in the electronic display map of the exploration well sub-section is converted into the exploration well in the three-dimensional coordinate system.
2. The method for graphical geological logging of exploration wells according to claim 1, characterized in that: Also includes: S6. Compare, verify and correct the geological data obtained by the exploration well in the three-dimensional coordinate system and other surveying means consistent with the three-dimensional coordinate system. The geological data obtained by other surveying means consistent with the three-dimensional coordinate system include drilling holes and exploration pits.
3. The method for graphical geological logging of exploration wells according to claim 1, characterized in that: The characteristic line is the axis of the exploration well, the starting point of the axis is the center of the wellhead, and the direction of the axis is vertically downward.
4. The method for graphical geological logging of exploration wells according to claim 1, characterized in that: The position of the well sidewall development line is expressed by the development line azimuth.
5. The method for graphical geological logging of exploration wells according to claim 1, characterized in that: The location of the exploration well sub-section is expressed in depth.
6. The method for graphical geological logging of exploration wells according to claim 1, characterized in that: The origin of the coordinate system of the electronic development map of the exploration well side wall is the intersection of the development line and the wellhead, the horizontal coordinate range is 0 to the circumference of the wellhead, and the vertical coordinate range is 0 to the depth of the exploration well.
7. The method for graphical geological logging of exploration wells according to claim 1, characterized in that: The origin of the coordinate system of the electronic display diagram of the exploration well sub-section is the intersection of the exploration well sub-section and the characteristic line, the horizontal axis is the ray horizontally projected from the intersection of the exploration well sub-section and the characteristic line toward the development line, and the vertical axis is the horizontal coordinate rotated 90 degrees counterclockwise.
8. The method for graphical geological logging of exploration wells according to any one of claims 1 to 7, characterized in that: In S3, geological objects are divided into continua, discontinua and separate lines. The section body cataloging method is used to outline the continua and discontinua in the coordinate system of the electronic development map of the exploration well side wall, and to outline the separate lines in the coordinate system of the electronic display map of the exploration well sub-section.
9. The method for graphical geological logging of exploration wells according to claim 8, characterized in that The continuum has an upper and lower order relationship and upper and lower boundaries, the discontinuum does not have an upper and lower order relationship, but has upper and lower boundaries or the upper and lower boundaries are combined, and the single line body has neither an upper and lower order relationship nor upper and lower boundaries.
10. The method for graphical geological logging of exploration wells according to claim 8, characterized in that: The continuum includes stratum lithology, and the geological boundary of the stratum lithology is outlined in the coordinate system of the electronic development map of the side wall of the exploration well, so as to obtain the electronic development map of the side wall of the exploration well with the matching relationship between the stratum lithology and the geological boundary. The stratum lithology includes sandstone, mudstone and dolomite; the discontinuum includes sliding belts and sliding surfaces, and the sliding belts and sliding surfaces are outlined in the coordinate system of the electronic development map of the side wall of the exploration well, so as to obtain the electronic development map of the side wall of the exploration well with the sliding belts and sliding surfaces, specifically: firstly, the upper boundary of the sliding belt is outlined, and then, according to the thickness of the sliding belt, the designated thickness is automatically offset downward in the direction of the development line. The lower boundary of the sliding zone is generated by the distance to obtain the sliding zone, a single line is drawn to represent the sliding surface, and the sliding surface is obtained, thereby obtaining an electronic expansion diagram of the side wall of the exploration well with the sliding zone and the sliding surface; the separate line body includes an intrusion body and a linear seepage, the intrusion body is outlined with a closed line in the coordinate system of the electronic display diagram of the exploration well sub-section at the depth of the intrusion body, and the electronic display diagram of the exploration well sub-section with the intrusion body is obtained, and the linear seepage of groundwater is outlined with a single non-closed line in the coordinate system of the electronic display diagram of the exploration well sub-section at the depth of the linear seepage, and the electronic display diagram of the exploration well sub-section with the linear seepage is obtained.