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104 results about "Geological section" patented technology

Stratum-parameter coupling randomness three-dimensional random field modeling and shield construction ground surface settlement rapid prediction method and device based on multi-source data fusion

The invention belongs to the field of geotechnical engineering and engineering geological information modeling, and relates to a stratum-parameter coupling randomness three-dimensional random field modeling and shield construction ground surface settlement rapid prediction method and device based on multi-source data fusion. According to the method, a three-dimensional joint random field acting on stratum types and rock-soil key physical property parameters at the same time can be constructed under the joint constraint of multi-source data such as drilling, geophysical prospecting, geotechnical tests and terrains, and a calibrated, explainable and updatable geological section automatic generation and uncertainty quantification channel is formed; on the premise that geological rationality is guaranteed, section geometry and parameter distribution under the conditions of complex structures and lateral phase change are restored robustly, the accuracy, consistency and interpretability of the three-dimensional geological section are remarkably improved, and a combined uncertainty result which can be directly used for rapid prediction and risk assessment of shield construction settlement is output. The technical problems that a geological section generated by an existing method is not accurate enough, uncertainty is difficult to quantify, and the extrapolation capacity of a complex scene is weak are solved.
Owner:HUAZHONG UNIV OF SCI & TECH

Three-dimensional modeling method for geological section

The invention relates to the technical field of geological image processing, and particularly discloses a three-dimensional modeling method for a geological section, which is used for solving the problem of how to accurately identify and hide irrelevant geological areas and improve the modeling efficiency in geological three-dimensional modeling. Comprising the steps of data acquisition and preprocessing, geologic model constraint, implicit modeling and machine learning optimization, three-dimensional modeling and graphic rendering optimization, model correction and optimization and dynamic interaction and analysis, and four analysis formulas based on hidden requirements are provided; according to the method, by setting the hiding demand judgment formula for the coal seam, the rock stratum, the mined area and the inactive fault, the geological area irrelevant to target research is screened, the geological three-dimensional modeling process is optimized, the accuracy and efficiency of the model are improved, interference of irrelevant data is reduced, and the method has good application prospects. It is ensured that the mineral resource evaluation result better conforms to the actual geological condition, and the precision and credibility of mineral resource prediction are effectively improved.
Owner:ZHONGKUANG ZHONGHE INTELLIGENT GEOLOGICAL ENG (JIANGSU) RES INST CO LTD +1

Underground reservoir three-dimensional geologic model construction method and system

PendingCN121280654A3D modellingLithologyTerrain
The invention relates to the technical field of geological modeling, and discloses an underground reservoir three-dimensional geological model construction method and system. The method comprises the following steps: screening drilling data through a preset precision threshold value, correcting topographic data by using a first precision drilling data set to generate a topographic surface model, reversely calibrating a second precision drilling hole, and establishing a multivariate data fusion mechanism; layering standardization is achieved in combination with sedimentary cycle characteristics, aquifer units are automatically divided, and stratum lithology codes are compiled; a three-dimensional model is generated by adopting an implicit modeling method based on modeling boundary constraints, and the model precision is verified through a profile comparison method and a leave-one-out method; and converting the adjusted geological section into a three-dimensional constraint surface to drive the generation of a virtual drill hole so as to realize incremental updating of the three-dimensional geological model. According to the method, the spatial precision of the terrain surface model is remarkably improved, the problem of non-uniform reference of multivariate heterogeneous data is solved, the reliability and accuracy of model construction are improved, the virtual drilling data set is generated, the data are dynamically modeled, and the dynamic updating of the model is realized.
Owner:CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES CO LTD

Three-dimensional geological section real-time cutting method and system and storage medium

The invention relates to the technical field of computer graphics, in particular to a three-dimensional geological section real-time cutting method and system and a storage medium, and the method comprises the steps: constructing a BVH tree to accelerate the cutting of a three-dimensional geological model, and calculating the projection of intersecting line segments on a cutting surface two-dimensional coordinate system to obtain a projection line segment set; constructing an undirected graph structure based on the projection line segment set; and extracting a closed profile contour based on the undirected graph structure, subdividing a triangular grid, and rendering and displaying. The implementation of the scheme can break through the traditional preprocessing dependence, and improve the profile generation efficiency and the visualization integrity.
Owner:WUHAN DIDA KUNDI TECH CO LTD

Geological modeling construction optimization method suitable for geological disaster exploration of surface mine

The invention relates to the technical field of geological modeling, in particular to a geological modeling construction optimization method suitable for surface mine geological disaster exploration. The method comprises the following steps: fully collecting and integrating geological data and geophysical data, determining a reasonable drilling position by using a scientific geological inversion analysis method, constructing an ore body model by combining drilling sampling data, and constructing a geological profile map by using a GIS (Geographic Information System) to obtain accurate contour parameters so as to construct an original geological three-dimensional model. Meanwhile, a Bayesian method is introduced to calculate probability distribution of the stratum surface, and an original model is labeled and compiled to obtain a final high-precision three-dimensional geological model, so that the defects of a traditional method can be effectively overcome, and the accuracy, reliability and scientificity of geological modeling are improved; and more accurate and comprehensive geological information support is provided for prediction, evaluation and prevention of geological disasters of the surface mine.
Owner:LANGFANG ZHONGTIE PROSPECTING RECONNAISSANCE CO LTD +2

Autonomous rock-soil body drilling instrument based on bionic principle and drilling method of autonomous rock-soil body drilling instrument

The invention discloses an autonomous rock-soil body drilling instrument based on the bionic principle and a drilling method thereof.The autonomous rock-soil body drilling instrument comprises a drill bit, a propelling steering mechanism, an anchoring mechanism, an electric control integrated module and a ground control unit, and the drill bit, the propelling steering mechanism and the electric control integrated module are sequentially connected; anchoring mechanisms are arranged between the drill bit and the propelling steering mechanism and between the propelling steering mechanism and the electric control integrated module; the drill bit is used for cutting a rock-soil body and backwards conveying and discharging the cut rock-soil body to the outside of the drill bit; the propulsion steering mechanism is used for driving the drilling instrument to linearly advance and steer; the anchoring mechanism is used for providing counterforce required by drilling or resetting for the drilling instrument through meshing and separation with surrounding rock and soil bodies; and the electric control integrated module is connected with the ground control unit through an integrated communication cable. The device simulates an anchoring-propelling mechanism of natural organisms, realizes autonomous drilling without an external counter-force device, a slurry protection wall and a probe rod, and has the capabilities of multi-directional drilling, active obstacle avoidance and real-time acquisition of a continuous geological section.
Owner:TIANJIN UNIV

Settlement measuring method and system for bridge design

The invention discloses a settlement degree measuring method and system for bridge design, and belongs to the field of bridge engineering. Geological profile data in a bridge site range is collected, a settlement influence function is constructed based on geological parameters, and a bridge pier load matrix is extracted in combination with bridge design load working conditions; multiplying the settlement influence function by the load matrix to obtain a design settlement initial value of each pier; further calculating a settlement difference value between adjacent piers, constructing a bridge floor elevation deviation function, performing discrete Fourier transform on the bridge floor elevation deviation function, and extracting a dominant frequency characteristic value to judge whether a high-frequency settlement fluctuation behavior exists or not; if the dominant frequency exceeds a preset threshold value, marking the corresponding pier as a settlement sensitive area, and outputting a load adjustment parameter and a foundation elevation correction suggestion; the method can realize prospective identification and parameterized regulation and control of the non-uniform settlement trend in a bridge design stage, has the advantages of high structural adaptability, high prediction precision and the like, and is suitable for bridge foundation optimization design in a complex geological environment.
Owner:SHUIFA PLANNING & DESIGN CO LTD

A high-ferric karst geological section comprehensive parameter fine automatic exploration system and geological grading method

A high-iron karst geological section comprehensive parameter fine automatic exploration system, including walking wheels, drill bit electrodes, drill bit detectors, drill bit magnetic excitation systems, electrode rotation systems, detector rotation systems, magnetic excitation rotation systems, liquid injection systems, control systems, multi-parameter interpretation systems, power systems, and wireless communication systems; the present application is based on the resistivity method and the wave velocity method, and can be used to explore any depth stratum that can be reached, independent of each other and mutually corroborating to reduce the karst geological multiple solutions, Rayleigh waves and electrical signals can transmit the most suitable signal type and strength according to the geological conditions at the set depth, which can realize the fine and automatic exploration of karst geology and improve the exploration efficiency. The present application also corrects the geological classification method in karst areas, and the corrected method can fully consider the development and particularity of karst, providing a method for the automation of high-iron geological exploration in karst areas and avoiding human errors.
Owner:EAST CHINA JIAOTONG UNIVERSITY

Portable geological profile measurement auxiliary support

This utility model belongs to the field of auxiliary supports, specifically relating to a portable geological profile measurement auxiliary support. It includes a hollow cylinder with multiple legs hinged to its outer wall. A mounting sleeve is fixedly connected to the top of the hollow cylinder, and a post is inserted into the upper end of the mounting sleeve. A mounting plate is fixedly connected to the top of the post. An inner conical sleeve is threadedly connected to the outside of the mounting sleeve, and a locking mechanism is provided between the inner conical sleeve and the mounting sleeve. This utility model, by setting an external support leg in the hollow cylinder, with the leg hinged to the outer wall of the hollow cylinder, can quickly unfold to form a triangular support structure, adapting to rugged terrain. Simultaneously, a lifting combination of a threaded shaft and a threaded sleeve is set inside the hollow cylinder. The threaded movement of these two components controls the lifting of the base plate at the bottom of the threaded sleeve. Combined with rollers at the bottom of the base plate, it facilitates carrying and transferring on flat surfaces, making it more convenient than traditional manual transport methods.
Owner:内蒙古伊泰煤炭股份有限公司

Method for quantitatively describing fault inversion process based on balanced section

ActiveCN120143248BSeismic signal processingAlgorithmStage (stratigraphy)
The application discloses a kind of quantitative description fault inversion process method based on balanced section, comprising the following steps: S1: selecting geological profile;S2: division different inversion stage sequence stratigraphy;S3: determine the geologic time of different activity stages of inversion fault;S4: use balanced section technology to restore the evolution history of inversion fault;S5-S7: calculate the slip distance of different stages inversion fault, and calculate the slip rate, inversion intensity coefficient of different inversion stages;S8: establish equivalent point distance, total slip distance, slip rate and inversion intensity coefficient trend chart with geologic time variation, the application is suitable for basin structural analysis technical field, introduce balanced section technology, can more accurately restore fault inversion process;Moreover, can clearly, accurately, quantitative characterization fault inversion process from fault slip distance, the activity intensity of different stages and inversion intensity etc., facilitate different inversion structure contrast, basin structural analysis etc. work is carried out.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Canal project line selection scheme recommendation method and device and electronic equipment

The invention discloses a method and device for recommending a canal project line selection scheme and electronic equipment, and relates to the field of canal project data processing.The method comprises the steps that multi-source geographic information of a target area to be subjected to canal project site selection is fused, and a basic geographic information framework is constructed based on the multi-source fusion information; performing geological stability assessment on different to-be-assessed sub-regions by using a fuzzy logic rule, marking unfavorable geological sections based on geological stability assessment results, preliminarily drawing up N canal route schemes, identifying a matching relationship between each preliminarily drawn-up canal route scheme and a natural resource constraint condition set, and determining the matching relationship between each preliminarily drawn-up canal route scheme and the natural resource constraint condition set; adjusting constraint conditions in the canal line; and comparing and selecting the multiple adjusted canal route schemes by adopting a multi-objective optimization model, and determining a recommended canal route scheme. The technical problems that in the prior art, in the long-distance canal engineering planning line selection process, influences of topography and geology exist, the workload is large, and the cost is high are solved.
Owner:WATER TRANSPORT PLANNING & DESIGN INST

Complex stratum karst cave volume calculation method and related equipment

The embodiment of the invention provides a complex stratum karst cave volume calculation method and related equipment, and belongs to the technical field of geological survey. The method comprises the following steps: acquiring a geological profile map and a borehole histogram; performing information extraction on the drilling histogram to obtain drilling information of each drilling point location; performing structured processing according to the drilling information of all the drilling points to obtain an original stratum distribution table; performing elevation supplementation on the original formation distribution table according to the geological profile map to obtain a standard formation distribution table; based on the standard stratum distribution table, performing data splitting by taking each stratum as a derivation unit to obtain a plurality of stratum derivation tables; performing three-dimensional model reconstruction according to each stratum derivation table to obtain a stratum interface entity model of each stratum; performing target detection on all the stratum interface entity models according to a preset karst cave label to obtain a target karst cave model; and performing area attribute analysis on the target karst cave model to obtain the target karst cave volume, thereby improving the accuracy of karst cave volume calculation.
Owner:GUANGZHOU MUNICIPAL ENGINEERING GROUP LTD +1

Two-dimensional stratigraphic structure prediction method and system under limited borehole observation information condition

The invention discloses a two-dimensional stratigraphic structure prediction method and system under the condition of limited borehole observation information, and the method comprises the steps: carrying out the spatial domain discretization of an engineering geological section of a target region, and obtaining a plurality of grid units; constructing state variables of each grid unit, wherein the state variables comprise feature vectors depicting soil engineering properties and labels representing stratum types; then feature prototypes of various stratums are established based on the drilling sample state variables; a stratum classification model containing a data consistency item and a spatial regularization item is constructed, the former quantifies the matching degree of a grid unit and a stratum type, and the latter realizes spatial continuity constraint by punishing stratum transition of adjacent units; and finally solving the model to obtain a two-dimensional stratigraphic structure prediction result. According to the method, the problems of space continuity and engineering reasonability of stratum prediction under the limited drilling condition are effectively solved, and the stability of a prediction result is improved.
Owner:HUNAN INSTITUTE OF ENGINEERING

Geological anomalous body detection method and system in horizontal drilling well construction and medium

The invention discloses a geological anomalous body detection method and system in horizontal drilling well construction and a medium, and belongs to the technical field of mine water disaster prevention and control. Comprising the following steps: acquiring the minimum permeability, the maximum permeability and the average permeability of a stratum in a coal mine area, and a pressurized water diffusion radius; constructing a two-dimensional model of the geological section at the end hole, and carrying out iterative adjustment on the hole pressure of the end hole to enable the pressurized water diffusion radius at the end hole to meet the exploration requirement; three-dimensional models with different drilling lengths are constructed, and the tapping water pressure of the corresponding drilling length is inversely calculated based on the adjusted final hole pressure; under the condition of the maximum permeability, the maximum leakage amount of the corresponding drill hole length is obtained; in the horizontal drilling well construction process, the actual leakage amount is measured based on the opening water pressure of the corresponding drilling length; if the actual leakage amount exceeds the maximum leakage amount of the corresponding drill hole length, it is judged that a geological abnormal body exists; according to the method, the leakage amount data of whether the geological abnormal body exists in the stratums corresponding to different drilling length sections or not can be accurately given.
Owner:安徽恒源煤电股份有限公司 +1

An open type TBM debris cleaning and supporting integrated device suitable for poor geological section

ActiveCN117365534BSlagReduction drive
The application discloses an open TBM slag cleaning and supporting integrated device suitable for a poor geological section, which comprises a temporary supporting device, an auxiliary conveying device and a slag cleaning operation platform, the auxiliary conveying device is installed on a TBM main beam, the temporary supporting device is installed on the upper portion of the auxiliary conveying device, and the slag cleaning operation platform is installed on the bottom of the auxiliary conveying device. The temporary supporting device comprises a roof, a vertical supporting mechanism and a lateral supporting mechanism, the roof comprises a main shed and a side shed, the slag cleaning operation platform comprises a sliding platform and a slag cleaning mechanical arm, and the slag cleaning mechanical arm is connected with the bottom of the auxiliary conveying device through the sliding platform. The slag cleaning mechanical arm comprises a bottom disc turbine box, a rotating large arm, a motor, a speed reducer, a telescopic large arm, a telescopic small arm, a telescopic arm hydraulic cylinder, a digging arm, a digging arm hydraulic cylinder, a connecting rod, a hinged piece and a shovel. The application can realize the top surrounding rock supporting of a fast anchor rod construction area and the cleaning of the slag accumulated at the bottom of the main beam.
Owner:CHINA UNIV OF MINING & TECH

VTK-based three-dimensional geological section model generation method, system and device and medium

The invention relates to the technical field of three-dimensional modeling, in particular to a VTK-based three-dimensional geological section model generation method, system and device and a medium. The method comprises the following steps: firstly, acquiring original drilling data, performing nested storage according to the position of the original drilling data on an exploration line, and performing cleaning and multi-dimensional sorting to obtain structured drilling data; extracting ore bed boundary points from the structured data, constructing a local adjacency graph, and calculating a comprehensive regularity score of each quadrilateral patch in the local adjacency graph based on regularity quantitative indexes; setting a threshold value, if the comprehensive regularity score is lower than the threshold value, adopting vtkQuad for modeling, otherwise, adopting vtkTriangle for modeling, and generating primitive data; performing topology check on the primitive data, storing the primitive data into vtkCell Array, converting polygonal primitives into triangular primitives, and smoothing the triangular primitives to generate a three-dimensional geological section model; performing visualization and rendering processing to obtain a final three-dimensional geological section model; according to the invention, accurate data visualization support is provided for geological analysis, and the intelligent and precise level of geological work is improved.
Owner:中国建筑材料工业地质勘查中心山东总队

Geological boundary modeling method and device based on function image, equipment and medium

The invention discloses a geological boundary modeling method and device based on a function image, equipment and a medium, and relates to the technical field of geological surveying and mapping. The method comprises the following steps: dividing drilling data into continuous multi-section data along the same horizontal direction of a geological section, including first multi-section data and second multi-section data with different drilling data volumes, and respectively performing segmented fitting on the first multi-section data and the second multi-section data by adopting corresponding fitting functions, and finally, the fitting curve of each segment is drawn into a geological boundary. According to the modeling method, the drawing efficiency and smoothness of the geological boundary are improved.
Owner:CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE

Drill hole constraint geological section generation method based on diffusion generation type model

The invention discloses a borehole constrained geological profile generation method and system based on a diffusion generative model, and the method comprises the steps: obtaining original geological profile image data, and carrying out the preprocessing of the original geological profile image data; constructing a binary mask image on the original geological profile image and generating a shielding input image, and then constructing a sample training set; training a mask constraint diffusion generation model in the submerged space; and according to the geological section to be predicted and the new mask constraint diffusion generation model obtained by training, executing a back diffusion sampling process, and obtaining a complete geological section image meeting the drilling constraint. According to the method, the mask constraint diffusion generation model is trained in the submerged space, so that a complete geological profile map meeting the drilling constraint can be automatically generated according to given drilling columnar data in practical application, and a profile sample set is obtained through multiple times of sampling when needed and is used for constructing a lithologic probability profile map and evaluating the uncertainty of a geological structure.
Owner:SOUTHWEST JIAOTONG UNIV

Municipal pipe network structure automatic design method and device based on multi-source data fusion

The invention discloses a municipal pipe network structure automatic design method and device based on multi-source data fusion, and relates to the field of municipal pipe network design, and the method comprises the steps: pre-constructing a design rule of a pipe network structure; a pipe section of the pipe network structure is matched with a nearest geological drill hole, a corresponding virtual geological section is obtained in combination with geological survey data, and the virtual geological section comprises soil layer type information and soil layer thickness information; according to a foundation treatment scheme judgment rule of the design rule, a corresponding foundation treatment scheme is obtained in combination with the pipe type and soil layer type information of the current pipe section and the foundation bearing capacity characteristic value in the geological survey data; according to a supporting scheme judgment rule of the design rule, a corresponding supporting scheme is determined based on the trench excavation depth, the soil layer type information and the soil layer thickness information of the current pipe section; and the design rule is converted into an executable foundation treatment scheme and an executable supporting scheme, so that low efficiency of artificial experience judgment is avoided, and automation of municipal pipe network structure design is realized.
Owner:POWERCHINA ZHONGNAN ENG

Geological profile measuring device

The invention relates to the field of geological survey, and discloses a geological profile measuring device which comprises a mounting block, a supporting block is rotatably mounted in the mounting block, a supporting seat is mounted at the top of the supporting block, measuring equipment is mounted at the top of the supporting seat, and a plurality of supports are hinged to the bottom of the mounting block; and the leveling mechanism comprises a fixing frame installed at the bottom of the supporting block, and a motor is installed in the fixing frame. According to the device, the leveling mechanism is added to the bottom of the device, and a rotary counterweight force with a vertically downward resultant force is generated, that is, the leveling mechanism is utilized to generate the vertically downward resultant force, so that the leveling mechanism and the supporting block are always in a vertical state as a whole; and the supporting seat and the measuring equipment which are arranged at the top of the supporting block can be in a horizontal state in real time and can be in a dynamic horizontal state all the time, so that the practicability of the device is greatly improved.
Owner:SHANDONG HUIDE GEOGRAPHIC INFORMATION ENG CO LTD

Reservoir area soil bank slope bank collapse width prediction method

The invention provides a reservoir area soil bank slope bank collapse width prediction method, and relates to the technical field of water conservancy and hydropower engineering, and the method comprises the following steps: measuring the current terrain section of a bank slope, obtaining the bank slope height, slope angle and bank slope terrain line before reservoir water storage, and obtaining the characteristic water level of reservoir water storage; drawing an engineering geological profile map; the bank slope soil body is sampled, and physical and mechanical indexes of the bank slope soil body are measured through a test; and drawing a bank collapse width schematic diagram, and predicting the bank collapse width of the bank slope. According to the method, the four-section method bank collapse prediction model is established, the influence of the water level amplitude variation area and stormy waves on the stability of the reservoir bank is fully considered, the problem that the actual bank collapse width is inconsistent with the prediction result after water storage of the reservoir in the prior art is solved, and meanwhile the method has the advantages of being simple, easy to implement, high in reliability and accurate in prediction result.
Owner:POWERCHINA BEIJING ENG CORP

Method and system for determining target geologic body in mining area three-dimensional geologic modeling

PendingCN120972285AGeological explorationSystem
The invention provides a method and system for determining a target geologic body in mining area three-dimensional geological modeling, and belongs to the technical field of geological exploration, and the method comprises the following steps: S1, obtaining mining area geological mineral data; s2, based on the stratum age, the lithology combination and the structural occurrence, a preliminary geologic body is divided in combination with actually measured geological profile data; s3, collecting a physical property measurement sample of the preliminary geologic body; and S4, merging or splitting the preliminary geologic body according to the physical property parameter difference threshold value and the distinguishable degree. According to the method and system for determining the target geologic body in three-dimensional geological modeling of the mining area, samples are collected through a physical property parameter analysis module, density and other parameters are measured, a mean value, a standard deviation and the like are calculated, differences are analyzed through T inspection and a distinguishable degree matrix, and a target geologic body determination module combines or splits a primary geologic body according to a difference threshold value and distinguishable degrees; quantitative analysis is achieved, and the problem that boundaries are difficult to distinguish due to physical property parameter overlapping is solved.
Owner:CHINA MINMETALS CHANGSHA MINING RES INST

A structure for treating poor geological sections of an underground high-pressure gas storage reservoir and its design method

The present invention provides a treatment structure for poor geological sections of an underground high-pressure gas storage reservoir and a design method thereof. The treatment structure comprises replacement concrete disposed between a weak structural layer and backfill concrete. The replacement concrete has an isosceles trapezoidal cross-section in the radial direction of the gas storage reservoir. The upper base of the isosceles trapezoid is connected to the weak structural layer, the lower base is connected to the backfill concrete, and the two lower sides are connected to the surrounding rock on either side of the replacement concrete. The length L3 of the upper base is less than the length L1 of the lower base. The treatment structure of the present invention can prevent the weak structural layer from causing safety problems in the gas storage reservoir due to its low strength and easy deformation.
Owner:POWERCHINA ZHONGNAN ENG

Method and related device for complex formation cave volume calculation

The embodiment of the application provides a complex stratum cave volume calculation method and related equipment, and belongs to the technical field of geological survey. The method comprises the following steps: obtaining a geological profile and a drilling columnar graph; performing information extraction on the drilling columnar graph to obtain drilling information of each drilling point; performing structured processing on the drilling information of all drilling point positions to obtain an original stratum distribution table; performing elevation supplement on the original stratum distribution table according to the geological profile to obtain a standard stratum distribution table; based on the standard stratum distribution table, performing data splitting on each stratum as a derived unit to obtain a plurality of stratum derived tables; performing three-dimensional model reconstruction on each stratum derived table to obtain a stratum interface entity model of each stratum; performing target detection on all stratum interface entity models according to a preset cave label to obtain a target cave model; and performing face domain attribute analysis on the target cave model to obtain a target cave volume. The application can improve the accuracy of cave volume calculation.
Owner:GUANGZHOU MUNICIPAL ENGINEERING GROUP LTD +1

A method for automatically stratigraphic layering and well tie profile construction

This application provides an automatic stratigraphic stratification and well-connected profile construction method, relating to the geological field. The method includes: reading logging curve data from multiple wells and performing preprocessing and difference normalization to obtain a standardized sequence; performing adaptive continuous wavelet analysis and stratigraphic boundary identification on the standardized sequence to obtain a stratigraphic boundary set; automatically classifying stratigraphic units based on the stratigraphic boundary set to construct a classified stratigraphic sequence; performing inter-well comparison based on the multi-frequency components reconstructed from the standardized sequence using adaptive continuous wavelet analysis and a dynamic time warping algorithm with strong boundary constraints to obtain a globally optimal warping path; establishing an inter-well isochronous grid based on the globally optimal warping path, and color-filling using lithology labels from the classified stratigraphic sequence to generate a well-connected geological profile. The technical solution of this application provides a reliable technical means for oilfield stratigraphic evaluation and lithological interpretation.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Method and program product for determining inflow flux of serpentine mantle peridotite

The invention discloses a method and a program product for determining the water inlet flux of serpentine-modified mantle peridotite. The method comprises the following steps: acquiring geophysical data of a target area, constructing a geological section model presenting a geological structure of the target area based on the geophysical data, and embedding initial water content and rock porosity data into the geological section model; carrying out inversion reconstruction on the geometric shape information of the fault in the geological section model by adopting a plane-like section method to obtain fault space distribution data; constructing an earth kinetic model according to the geological section model, and determining permeation data of free water permeating downwards from the upper part of the fault based on the earth kinetic model; according to the temperature and pressure field simulation result, the mineral stability data of the target area and the seepage data, the serpentine water inlet flux of the serpentine reaction area is determined, and the target water inlet flux in the target area is determined. Therefore, the precision and the reliability of serpentine water inlet flux calculation are improved.
Owner:GUANGZHOU MARINE GEOLOGICAL SURVEY

A method for generating geological profiles based on SfM-MVS point clouds

This invention discloses a method for generating geological profiles based on SfM-MVS point clouds, involving the field of geological attribute information extraction, including three important stages: geological outcrop image acquisition and 3D point cloud modeling; extraction of geospatial information and geological attribute information; and data processing and mapping. Geospatial information includes the acquisition of attitude and geometric parameter data, while geological attribute information includes lithology and tectonic properties. This method represents a breakthrough in 3D remote sensing research at the outcrop scale, inheriting the non-contact, macroscopic, comprehensive, and multi-temporal characteristics of remote sensing. It transforms the subjective field recording process into data acquisition and information extraction, avoiding the drawbacks of inaccessibility, discrete information observation, and inconsistent understanding. This enables the digital preservation of geological outcrops and provides methodological support for the construction of a global outcrop database.
Owner:CHANGAN UNIV

A method for geosteering in a horizontal well in a tight sand gas reservoir

This invention provides a geological steering method for horizontal wells in tight sandstone gas reservoirs. First, relevant data from the target well and adjacent wells are acquired. Then, using this data, the geological characteristics of the target sandstone body, its micro-structure, reservoir heterogeneity, and stratigraphic occurrence are determined. Next, using well logging interpretation from adjacent wells and geophysical channel characterization, a refined three-dimensional geological model based on seismic constraints is established to clarify the sandstone body distribution and interlayer development. A geological profile is established along the well trajectory to determine the location of the horizontal well trajectory. Finally, trajectory optimization is performed. This steering method effectively combines geological and seismic data, using three-dimensional geological modeling to reasonably predict the distribution of reservoir sandstone bodies and scientifically assess interlayer development. The geological steering method and its implementation effectiveness are effectively guaranteed, and it can meet the geological steering requirements of different gas reservoirs and well areas with significantly different geological characteristics.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

A discrete element modeling method for reproducing joint network in rock mass

The application provides a rock mass internal joint network reproduction discrete element modeling method, comprising the following steps: measuring field joint information; establishing a discrete element numerical model; arranging a geological profile along the ore body dip direction; cutting a roadway boundary in the numerical model, cutting the measured joint information in the rock mass, and analyzing the correlation between the measured joint length and the triangular block length; selecting the range of the measured joint length and the triangular block length, respectively calculating the simulated joint size and the triangular block size of the hanging wall, the ore body and the footwall, simultaneously calculating the simulated joint spacing and the simulated gap, and embedding the numerical model; and based on the joint geometric parameters, constructing the joint network model of the hanging wall, the ore body and the footwall respectively. The engineering adaptability of the application is enhanced, the deep roadway surrounding rock stability analysis is supported, the model prediction result is close to the field monitoring data, and a reliable basis is provided for support design.
Owner:CENT SOUTH UNIV

Coal mine geologic model dynamic updating method based on drilling data and related equipment

The invention relates to the technical field of geological data processing and prediction, and provides a coal mine geological model dynamic updating method based on drilling data and related equipment. The method comprises the following steps: acquiring drilling data generated by an intelligent drilling machine in a drilling process, and carrying out preprocessing and feature extraction to generate a drilling response sequence taking a drilling depth as an index; performing data analysis to generate a geological response feature vector composed of a plurality of statistical features; performing data analysis and sampling processing on the geological response feature vector through a multilayer Fourier neural operator to generate an initial calculation result; according to the method, the continuity and the consistency of results are optimized through a sequence re-calibration technology, a virtual geological section with high credibility is generated, and finally, accurate and incremental model updating is only performed on a local space region influenced by drilling based on the section, so that the updating efficiency is greatly improved while the accuracy is ensured, the geological model can dynamically evolve along with drilling, and the drilling efficiency is improved. And the urgent demand of a production site on real-time geological information is met.
Owner:SHAANXI SHANMEI PUBAI MINING CO LTD +1