209 results about "Geological section" patented technology

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 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 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 relates to an automatic graphing method for a geological section map of a non-isobathic drilled hole. The automatic graphing method is characterized by comprising the following steps of: 1) standardizing stratum information of each drilled hole, unifying stratum numbers, and generating a drilled hole list and a drilled hole stratum list; 2) carrying out stratum wire connection from left to right and from top to bottom; and 3) filling stratum figure patterns on the geological section map after the wire connection, and processing the patterns. Compared with the prior art, the automatic graphing method provided by the invention can effectively process various complex stratums, particularly the geological section map can be automatically graphed by using drilled hole stratum data of the non-isobathic drilled holes of various projects.

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.

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 provides a quantitative evaluation method of fault vertical opening-closing performance during an oil-gas reservoir-forming period and belongs to the technical field of oilfield exploration. The method is independent from experiments, is low in cost, can accurately judge fault vertical opening-closing performance during the oil-gas reservoir-forming period and is applicable to quantitative evaluation of various lithologic cover strata. The method includes following steps: selecting multiple faults of a known area in a studied region as sample points, making longitudinal geological sections perpendicular to leading directions of the faults, and judging vertical opening-closing performance of the faults at the sample points according to distribution features of oil and gas above and below the faults; calculating fault opening-closing coefficient S of each sample point, recording correlation between the fault vertical opening-closing performance of the sample points and the corresponding fault opening-closing coefficient S, and establishing a judgment threshold; calculating fault opening-closing coefficient S corresponding to faults of unknown areas in the studied region, vertically closing the faults when the fault opening-closing coefficient S corresponding to the faults is greater than the judgment threshold, and vertically opening the faults otherwise.

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.