209 results about "Geological section" patented technology

A method for creating a facies probability cube is disclosed. A S-grid containing facies is first created. The grid includes layers of cells and columns of cells. Vertical facies proportion data for the layers of cells is derived from sources such as well data, conceptual vertical geologic sections and graphs describing the proportion of facies found in each of the layers. Areal depocenter maps are created which have defined boundaries to create depocenter regions in which respective facies are likely to occur. Ideally, the boundaries for the depocenter regions for each of the facies are sequentially and independently defined. Horizontal or map facies proportion data are generated for the columns of cells preferably by filtering the depocenter regions so that the proportion of each of the facies ranges from a maximum value to a minimum value. The vertical and horizontal facies proportion data are then integrated to create a facies probability cube in which the cells are assigned probabilities for the occurrence of facies.

The invention discloses a three-dimensional horizontal geological section map manufacturing method and applications of the three-dimensional horizontal geological section map manufacturing method. The method comprises the steps of obtaining wild geological raw data according to relevant correlation technical standard requirements of energy mineral resource geology and engineering geology, wherein the wild geological raw data comprise but not limited to drilling geological data, drilling point three-dimensional position information, geophysical exploration information and relevant indoor and outdoor testing data. The total number of the steps is ten. The method is applied to engineering geological map manufacturing and energy mineral resource geological map manufacturing, and geological mapping result expressing in geological mapping in the engineering geology and the energy mineral resource geology, wherein the geological mapping result expressing comprises but not limited to relevant mapping result expressing in the links of engineering geological mapping, designing, analyzing, constructing, monitoring and running and relevant mapping result expressing in the links of energy mineral resource planning, mapping, designing, monitoring, exploiting, running and repairing.

The invention relates to the field of tunnel construction, in particular to a method for constructing a tunnel by finishing full section curtain grouting from an upper-half section, which solves the problems of long construction period, difficult construction, high construction safety risk and the like during full section curtain grouting construction of a complex geological section. The method comprises the following steps of: firstly, excavating the upper-half section, and strengthening the support of a tunnel face; secondly, constructing a temporary inverted arch and a grout-stopping wall of the upper-half section; thirdly, excavating the lower-half section in place, and strengthening the support of the tunnel face; fourthly, constructing a grout-stopping wall of the lower-half section; fifthly, forming grouting holes on the upper-half section, wherein the maximum elevation angle alpha is between 25 and 45 degrees, the maximum depression angle beta is between 30 and 70 degrees, andthe longitudinal strengthening length is between 15 and 30 m; sixth, performing grouting operation; seventh, constructing a large-scale lead pipe roof; eighth, excavating a grout-stopping wall; ninth, excavating a tunnel trunk; and finally, continuously cycling by taking an area of 15 to 30 m as a grouting strengthening cycling section to realize the construction of the tunnel by curtain groutingfrom the upper-half section. The method can greatly reduce the construction difficulty, shorten the construction period, and ensure the construction quality, and the construction is safe, quick and economic, so the method can be widely used in the field of tunnel construction.

The invention discloses a method for forecasting a carbonate reservoir based on forward modeling of a digital geological model, and is characterized by comprising the following steps: in petroleum geological exploration, through a field carbonate geological outcrop collecting and data processing technology and combination with an actually-measured geological section, establishing a three-dimensional digital geological model of an outcrop area, according to an outcrop rock speed analysis chart and a drill speed data, establishing a speed model of the carbonate reservoir with different physical properties on the basis of the three-dimensional geological model, carrying out two-dimensional forward modeling and three-dimensional forward modeling, carrying out offset horning process on earthquake forward modeling data so as to obtain three-dimensional offset data or a two-dimensional offset section of the earthquake forward modeling, establishing reflecting characteristics of different carbonate reservoirs according to response characteristics of the earthquake section, and forecasting the carbonate reservoir. According to the invention, qualitative forecasting of the carbonate reservoir can be realized without a regular earthquake inversion, a large amount of manpower and device resources are saved, reliability and precision of forecasting of the carbonate reservoir in the earthquake are effectively improved, exploration and development risk can be reduced, and benefit is increased.

The invention discloses an ore concentration area scale area three-dimensional geological modeling method and system. The method comprises a step of obtaining geological survey data which comprises stratigraphic area feature data, tectonic line feature data, occurrence point feature data, drill hole feature data, exploration line feature data, and trenching feature and tunnel feature data, a step of defining the spatial and temporal relationship between stratums, the spatial and temporal relationship between faults, and the spatial and temporal relationship between the stratums and the faults, a step of using a Cokriging algorithm to carry out implicit spatial interpolation on the geological survey data and the spatial and temporal relationships, a step of constructing a virtual geological section according to an interpolation result, a step of editing the virtual geological section, and a step of determining an ore concentration area three-dimensional geological model according to the virtual geological section. The invention provides the ore concentration area scale area three-dimensional geological modeling method and system, and on the basis of ensuring low cost, the accurate modeling of the geology of an ore concentration area scale area can be carried out.

A method for fault and fracture identification based on seismic data representing a geological section using dispersion properties of reflected and diffracted waves. The method includes scanning N parameters associated with the seismic data. The array includes the coordinate axes of the angle of emergence (β), the radius of curvature of the wave front (R) and either time or depth samples. The method also includes processing the N parameters, generating a new image having a cross-sectional shape associated with one of the reflected and diffracted waves, calculating parameters DS and LS, evaluating DS for the case of fracture characterization, and comparing, for the case of fault identification, parameter LS with a threshold value defining the type of wave as one of the reflected and diffracted wave, the cross-sectional shape being substantially circular for the reflected wave, and being elliptical for the diffracted wave.

The invention discloses an undisturbed soil sampler at the field geological section. The undisturbed soil sampler comprises a rack provided with positioning pins and guide sleeves, wherein a rotatable connecting rod penetrates through the rack; one end of the connecting rod is provided with a crank handle, and the other end of the connecting rod is provided with a first bevel gear; a second bevel gear which is meshed with the first bevel gear and is vertical to the first bevel gear is connected with the middle part of a lead screw by a spline; the lower part of the lead screw penetrates through a lead screw guider fixedly connected with the rack and is fixedly connected with a hollow drill, and the drill is internally provided with a piston; the lead screw guider is provided with internal threads, and the lower part of the lead screw is provided with threads matched with the internal threads; and a pushing lead screw with a handle is also connected with the upper part of the lead screw by the internal threads, and can extend into the drill to push the piston. The undisturbed soil sampler disclosed by the invention has the advantages that when in soil sampling, power is input by manually shaking one power input end of the crank handle, rotation and axial feeding and retreat movement of the drill are realized, and the change of the moving state is realized by providing forward and reverse torque, so that the sampling is convenient to carry out.

The invention discloses a mine downhole drilling well logging analysis meter and method. The analysis meter comprises a probe, a pushing rod, a connecting cable and a control box, wherein the control box comprises a box body, a display unit, a data storage unit, a control circuit unit, a power source unit and a depth metering module, the display unit, the data storage unit, the control circuit unit, the power source unit and the depth metering module are arranged inside the box body, the probe comprises a metal shell, a transmission and control unit, a hole deviation measuring unit, a natural gamma unit and a camera unit and / or a power supply unit, and the transmission and control unit, the hole deviation measuring unit, the natural gamma unit and the camera unit and / or the power supply unit are sequentially connected inside the metal shell. The method comprises the steps of (1) drilling designated section locus calculation, (2) drilling plane locus calculation, (3) rock stratum lithology layering and (4) drilling structure and water yield property analysis. According to the mine downhole drilling well logging analysis meter and method, detection of layering lithology, rock stratum hardness degree, blowholes, fractures, water points and roof separation situation is carried out on various drilled holes under a well, the true rock stratum thickness, the drilling section locus and the drilling plane locus are calculated, and then a drilling predicted geological section map can be drawn.

The invention provides an automatically generating method of pinchout geological body three-dimensional complex profile, which performs virtual supplementation to missed stratigraphic data in drilling holes by starting from processing the data of the drilling holes and according to the space distribution of the data of the drilling holes. The method comprises the following steps of extracting the data of the drilling holes in the same layer according to a one-to-one corresponding rule of the stratum of the drilling holes, and combining the data into a profile line of the stratum; performing triangulation based on the upper and lower stratum points of the stratum formed by adjacent two drilling holes according to the extracted profile line of the stratum, thereby realizing three-dimensional visual expression for the stratigraphic section. According to the method provided by the invention, the automatic drawing problem of complex three-dimensional section is solved; the workload for hand drawing geological profile can be greatly reduced; the method is based on the stratum information of the drilling hole to identify the pinchout situation, so that the efficiency for space analysis and decision making can be improved; molding of complex geological body three-dimensional section can be adapted, and the method can be widely promoted and used in the three-dimensional geo-science modeling.

The invention discloses a construction method for a complex geological section earth pressure balance shield passing a middle air shaft. The construction method for a middle air shaft enclosure structure at the shield passing position comprises the following steps of: pouring a continuous middle air shaft enclosure wall, arranging four concrete supports on the enclosure wall, and reinforcing deep stirring piles of structural bottom plates; and constructing a plain concrete continuous wall on the outer side of the end enclosure structure to block a tunnel portal. A backfilling method comprises the following steps of: backfilling plastic concrete in a range of 3 meters, close to the tunnel portal, and backfilling cement stabilizing soil at the middle position. The construction method also comprises the following steps of: casting the structural concrete bottom plates, casting a side wall of a negative second layer to the position of 50 centimeters below the third support, performing horizontal hole prospection on the tunnel portal part, detaching the third support, and casting a structural concrete side wall to the position of 50 centimeters below a middle plate. Collapse accidents of the tunnel portal and serious safety accidents when an electrical park brake (EPB) shield reaches and a shield machine is buried can be effectively avoided under complex geological conditions; and secondary departure of the shield machine in the middle air shaft and related risks caused by the secondary departure can be avoided.

The invention discloses a geological section output method of a three-dimensional geological model. The method comprises the following steps that (1) a stratum is marked, wherein all stratum surfaces of the geological model are subjected to substantiation in three-dimensional modeling software, and the stratum surfaces and a structural surface are marked with different colors; (2) a section is set up, wherein two points on the geological model are clicked, the original location and the length of the section are calculated through the three-dimensional modeling software, and a sectioning auxiliary surface is generated; (3) a chart ratio is made, wherein the distance between the two end points of the sectioning auxiliary surface is calculated through programming, the obtained distance is compared with the actual distance between the two end points of the actual sectioning auxiliary surface to obtain the chart ratio, and a sectioning auxiliary chart is drawn according to the ratio; (4) a coordinate axis is established; (5) drilled hole projection is carried out, wherein drilled holes near the sectioning auxiliary surface are selected and projected to the sectioning auxiliary surface, information of drilled holes on the periphery of the geological model are recognized and reflected on the sectioning auxiliary surface, and projection holes are drawn; (6) a geological section map is output. The geological section output method solves the problem that drawing work efficiency of a traditional flat section is low, and can be widely applied to the field of three-dimensional emulation techniques.

The invention relates to a clastic rock reservoir modeling method and device based on a digital geological outcrop. The clastic rock reservoir modeling method comprises the steps that the geological outcrop is selected according to known data of a target exploratory area; geological information of the geological outcrop is collected, and geological outcrop data bodies are obtained; the pictures of the outcrop in all the directions and at all the positions are obtained; actual measurement is conducted on the geological section of the geological outcrop, and a rock sample of the geological outcrop is obtained; analysis, assaying and measurement are conducted on the rock sample, and a rock physical property analysis graph is obtained; the geological outcrop data bodies are spliced, and the three-dimension data body, with uniform coordinates, of the geological outcrop is obtained; through the pictures of the geological outcrop in all the directions and at all the positions, the geological phenomena of the three-dimension data body of the geological outcrop are described; a three-dimension geological model of the geological outcrop is established according to the described geological phenomena of the geological outcrop and the actual measurement information of the geological section; according to the rock physical property analysis graph, a clastic rock reservoir physical property model is established through the three-dimensional geological model of the geological outcrop.

The present invention discloses a method for generating a three-dimensional geological map based on geological route (PRB) process double modeling. The method comprises a step of carrying out PRB field data collection and the PRB modeling of a measured section and a step of obtaining a geological actual material map or a manuscript geological map according to the PRB modeling, and the method also comprises the steps of (A) carrying out logical constraint on the PRB section, (B) carrying out deep modeling on the PRB and the measured section, (C) obtaining a geological boundary occurrence according to the PRB data, (D) generating a three-dimensional geological structure / fault framework diagram, (E) generating a three-dimensional PRB section fence diagram, (F) carrying out PRB section and geological map combined modeling, and (G) generating the three-dimensional geological map. By using the method, a three-dimensional modeling process and a digital area geological survey process can be synchronized, the modeling is carried out from the synchronization of the three-dimensional modeling process and the measured geological section collection synchronization, and the modeling efficiency is greatly improved.

The method of three-dimensional geological automatic modeling of urban area based on topological zoning includes: (1) preparation of survey data; (2) topological zoning of urban areas; (3) drawing thegeological section of the interface between urban blocks; (4) Automatic 3D modeling and dynamic updating of urban block geology; (5) Three-dimensional geological automatic modeling in urban area. Theinvention firstly divides a city block into a plurality of city blocks according to a topological zoning rule, draws a shared geological section on an interface of adjacent blocks, then carries out geological three-dimensional automatic modeling of all the city blocks by using prospecting data and geological section, and finally carries out geological three-dimensional automatic modeling of the city block through seamless splicing. On the one hand, the method improves the precision of 3D geological modeling and the efficiency of 3D geological model reconstruction; on the other hand, the method solves the problem of the inconsistency of the three-dimensional geological model of the urban area at the boundary of the block.

The invention discloses an advance prediction method for predicting bad geology in front of a tunnel. The method includes the following steps: (1) studying tunnel site area survey and design materials in detail; (2) carrying out detection using geological radar; (3) constructing a 3D geological simulation model of a tunnel; (4) carrying out monitoring and measuring on a tunnel site, and modifying the simulation model according to the monitoring and measuring result; and (5) designating the specific scope of a bad geological section and roughly analyzing the type of the bad geological body according to the tunnel site area survey and design materials, geological radar data, on-site monitoring and measuring materials and simulation data. Through using the advance prediction method of the invention, the bad geological environment in front of a tunnel face can be analyzed roughly and predicted in advance, and an effective construction means can be adopted in a timely manner to reduce safety risks in tunnel construction. The advance prediction method has the advantages of simple operation, safety and reliability, high prediction accuracy, and the like.

The invention belongs to the technical field of solid mineral exploration and three-dimensional geological modeling, and specifically relates to a method for extracting stratum boundary line to carryout three-dimensional modeling by utilizing exploration line profile. The method comprises the following steps: preparing and processing basic data, and carrying out translation, rotation and other operations on a profile to erect a two-dimensional profile map at the actual position of the three-dimensional space; extracting different geologic body boundaries on the section by utilizing the vertical geologic section; and establishing an integral three-dimensional geologic model by using the extracted geologic body boundary line according to the idea of breaking the whole into parts, carrying out block modeling and merging the whole parts. According to the method, the problem that the three-dimensional geology difficulty of a complex geology background research area is high is solved, the modeling precision is improved, the modeling effect is optimized, and technical support is provided for digitalization and quantification of mineral exploration.

The invention discloses a method for predicting the distribution of a thin sand body. The method includes the following steps: 1. using well logging information to identify a sand body, determining the pattern of longitudinal growth of the sand body from a geological section; 2. conducting phase rotation at -90 DEG on an original seismic section, such that the thin sand body corresponds to seismic wave amplitude response characteristics; 3. projecting a typical well-sand group to the seismic section, determining the position of the thin sand body to the seismic section; 4. longitudinally conducting continuous stratal slice on a seismic data body, observing the change characteristics of the seismic wave forms of the slices, determining a response characteristic slice of the thin sand body; and 5. using the response characteristic slice to determine the distribution range of the thin sand body on a plane. The method can accurately and efficiently predicts distribution and thickness of the thin sand body in a sand body.

The invention discloses a geological section map online generation method based on nonlinear fitting control. Distribution condition of each earth layer underground along a certain depth can be researched. Normalized processing can be carried out on complex stratums by compiling a network script language. For landforms such as pinch-out, inversion and deficiency possibly occurring in the stratums, the drilling stratums are numbered, rearranged and combined. Virtual serial numbers are added to the drilling stratums, thereby forming new numbered matrixes as the basis for connecting stratum boundaries. The stratum boundaries are smoothly connected based on three times of bezier curve fitting. According to the method, drilling service map layers can be displayed on a network platform, drilling information stored in a database can be called in real time, a user can randomly pick up drilling points on line, thereby finishing drawing a geological section map, the whole process is simple and convenient in operation, and the map forming effect is good.

The invention discloses a novel method for vectorization of a reservoir geological section map. The method is characterized by comprising a step S1 of taking the reservoir geological section map as input; a step S2 of adopting Gaussian filter to perform smoothing filtering on images, and then adopting a laplacian sharpening method to enhance images on a smoothing basis; a step S3 of first performing color space model transformation, and then performing color cluster segmentation; a step S4 of adopting an improved self-adaption Canny edge detection algorithm to perform edge detection on images, and obtaining an edge contour; a step S5 of performing vectorization on the obtained contour; a step S6 of performing vector diagram output: outputting a vector diagram in the SVG format. By use of the vectorization reservoir geological section map, layer information of each layer is retained well, and an obtained vectorization map is easy to edit and store and is well practically applied in geological comprehensive interpretation with drilling.

The invention discloses a method of accurately producing an arc geological section. The method includes the following steps: selecting a block name of a layer or a block object participating calculation, selecting a landform line layer, a geological boundary line layer and an intersected section layer on an intersected interface, ticking and checking whether projection exploration points exist, selecting block names of the projection exploration points, inputting a projection range, obtaining a section line with an arc segment on a CAD geological plane, and drawing a geological section map. The advantages of the method are that a main framework of the section map is drawn by calculating distances from nodes and crossed points to a starting point of a section line, geological contents are filled on the basis of the geological contents and exploration data on the map, and the geological section can be accurately produced for a construction building axis with an arc segment or a circle. The method is simple to operate, enables a map to be generated only by selecting layers participating calculation and setting information such as scales and pile pulling numbers, greatly improves the work efficiency, and does not need ornamenting in a later period.

The invention discloses a method and a system for forecasting tunnel geology. The method comprises steps as follows: surveying the tunnel geology with a seismic reflection method according to the geological condition of a peripheral zone of a tunnel; determining a suspicious geological section according to a result surveyed with the seismic reflection method; surveying the determined suspicious geological section with a short distance method; determining an unfavorable geological section according to a result surveyed with the short distance method; surveying the unfavorable geological section with an advanced drilling method, and obtaining geological analysis data of the unfavorable geological section; and performing geological forecast according to the geological analysis data of the unfavorable geological section. According to the method and the system, the potential safety hazard problem during tunnel construction due to the fact that the tunnel geological condition cannot be accurately forecasted with a single tunnel geological survey method is solved, and the forecasting practicability is improved.

The invention provides a petroleum spatial distribution quantitative evaluation chart generation method under reservoir configuration constraint. The method comprises the steps: collecting different types of hydrocarbon source rock samples sequentially according to thermal evolution degree, abundance of organic matter, lithology and organic matter type; carrying out the thermal simulation experiment of the collected samples, quantifying discharged oil and retention oil at each temperature point, employing the organic carbon analysis of residue, Rock-Eval detection, and vitrinite reflectance analysis; drawing an oil discharge rate chart of different types of hydrocarbon source rocks; selecting geological sections of different basins as actual geological samples; densely collecting the hydrocarbon source rocks and storage layer rock core samples and carrying out organic carbon analysis, Rock-Eval detection, vitrinite reflectance analysis and chloroform bitumen quantitative analysis on actual geological sections; drawing an oil discharge rate parameter curve of an actual geological sample; and obtaining the petroleum spatial distribution quantitative evaluation chart generation method under reservoir configuration constraint according to the oil discharge rate charts of different types of hydrocarbon source rocks and the oil discharge rate parameter curve of the actual geological sample.

A method for fault and fracture identification based on seismic data representing a geological section using dispersion properties of reflected and diffracted waves. The method includes scanning N parameters associated with the seismic data. The array includes the coordinate axes of the angle of emergence (β), the radius of curvature of the wave front (R) and either time or depth samples. The method also includes processing the N parameters, generating a new image having a cross-sectional shape associated with one of the reflected and diffracted waves, calculating parameters DS and LS, evaluating DS for the case of fracture characterization, and comparing, for the case of fault identification, parameter LS with a threshold value defining the type of wave as one of the reflected and diffracted wave, the cross-sectional shape being substantially circular for the reflected wave, and being elliptical for the diffracted wave.

The invention discloses a geological section modeling method based on drilling information and the knowledge inference technology. A drilling database stores all acquired dotted drilling bottom layer information data; drilling data in the database is converted into a lamellar logic data structure through a data converter; an inference machine infers stratums meeting conditions through combination of lamellar logic data and the knowledge inference rule in a knowledge base; a method class is a set of method sets mapping the stratums and geometric objects; an object assembler links the stratums inferred by the inference machine into a vector polygon chain, and finally a geological section graph is formed and fed back to a user through a graph interface; maintenance of the knowledge base is achieved through a knowledge manager. Intelligent decision making of the user on the section modeling algorithm and the section graph is achieved, and the problems that a traditional geological section modeling system is not high in accuracy and practicality due to the fact that expert knowledge and experience for decision making cannot be fused are solved.

The invention discloses a method for determining surface mine exploiting limit, and belongs to the field of mine exploiting design. The method comprises the steps that 1, the economic reasonable stripping ratio is determined according to the economic rationality; 2, feasibility, safety and reliability of the technology serve as principles, and open mine final slope forming elements are determined according to existing design specifications and safety procedures; 3, on a topographical and geological map and a geological section map of a deposit serving as a design basis, an upper port of an open mine final realm is delimitated along a mining right range line, and the mining right range line forms a bench edge of a first step; 4, according to the open mine slope forming elements determined in the second step, the steps are delimitated in sequence from top to bottom; 5, in the process of delimitating the final exploiting realm, the exploiting realm is optimized, and meanwhile a transportation system L is arranged and exploited; 6, the layered ore-rock volume and the average stripping ratio Np in the open mine exploiting realm are calculated. The method for determining the surface mine exploiting limit reduces workload, the design efficiency is high, the method is simple, and the practicability is good.

The invention discloses a TBM passing construction method in an unfavorable geological section. The TBM passing construction method in the unfavorable geological section comprises the following stepsthat (1) a tunneling parameter is abnormal and the tunneling is suspended; (2) advanced geological prediction and drainage are carried out; (3) pre-reinforcing is carried out on the front part of a tunnel face and the radial surrounding rock of a cutterhead; (4) the cutterhead is cleaned and the tunneling length is determined and the tunneling is recovered; (5) primary supporting of a shield tailis carried out; and (6) cyclic reinforcement and the tunneling are carried out. According to the TBM passing construction method in the unfavorable geological section, the front part of the tunnel face and the radial surrounding rock of the cutterhead are pre-reinforced by adopting an active shutdown method, the probability of the TBM jamming is reduced, the supporting quality is guaranteed, and grippers are prevented from sinking due to the stress difference of the surrounding rock; and a stratum can be rapidly improved in a short time, so that continuous collapse of the tunnel face is avoided, the TBM passing construction method has the characteristics that the processing speed is fast for the localized unfavorable geology, the secondary collapse caused by long-time shutdown geological deterioration is prevented, the construction period effect is good, and the cost is greatly reduced by adopting the method compared with hundreds or even thousands of detrapped treatment cost after theTBM jamming.

The invention relates to the technical field of geological modeling, in particular to a multi-source geological data coupling modeling method based on drill holes and complex geological sections, which is characterized by comprising the following steps: S1, modeling data preparation: performing data standardization processing on modeling data to generate three-dimensional data, and performing dataconsistency processing; S2, constructing a fault surface: determining a three-dimensional space form of the fault surface, and generating a three-dimensional fault surface; S3, constructing a groundlevel: generating a ground surface according to the ground surface elevation data; sequentially constructing complete stratum surfaces of all the stratums from top to bottom according to the corresponding relation of the stratums; S4, ground level intersection processing: performing curved surface intersection processing, and segmenting a ground level according to an intersection line; after the segmentation is completed, removing surplus stratum surfaces to obtain stratum surfaces conforming to stratum distribution; and S5, constructing geologic body. According to the method, the modeling result is more consistent with the actual situation, and meanwhile, the modeling efficiency of the complex geologic body is improved.

The present invention provides a geological data analysis and modeling method, comprising the following steps: ①Qualitative analysis: for the processed audio magnetotelluric sounding data, use two-dimensional deviation analysis, electrical main axis feature analysis, and polarization feature analysis respectively , Magnetic induction vector feature analysis and quasi-section map feature analysis are analyzed in at least three ways to obtain geological section data; ②AMT inversion: perform nonlinear conjugate gradient NLCG two-dimensional inversion on geological section data; ③Model establishment: according to the above According to the obtained data, according to the principle of continuous drilling, geological profile, lithology data and resistivity contour line, the section is electrically stratified. Combined to establish a geological and geophysical prospecting model. The beneficial effect of the invention is that: through qualitative analysis, AMT inversion and model building, a set of analytical methods with strong applicability, easy operation and system are provided for geological exploration of ore deposits.