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30 results about "Tectonic deformation" patented technology

Dynamic early warning method and system for large extrusion deformation catastrophe of soft rock tunnel

The invention discloses a dynamic early warning method and system for soft rock tunnel extrusion large deformation catastrophe, and the method comprises the steps: building a soft rock tunnel surface reference model, carrying out the point cloud registration, updating the soft rock tunnel surface model, recognizing a deformation mode, adjusting a deformation mode threshold value, carrying out the apparent dynamic early warning, and carrying out the multi-scale compensation. Constructing a Bayesian catastrophe prediction network based on a control-state coupling mechanism to obtain a large-deformation dynamic catastrophe index, adjusting a threshold value of the large-deformation dynamic catastrophe index to perform internal dynamic early warning, performing multiple regression to obtain a damage mapping relation set, constructing a deformation feature vector, and performing dynamic early warning; and constructing a dangerous event prediction model based on semi-supervised learning, obtaining a dangerous event prediction result in combination with the destruction mapping relation set, and performing event dynamic early warning. The method not only can improve the precision of dynamic early warning of the soft rock tunnel extrusion large deformation catastrophe, but also has good interpretability, and can be directly applied to a dynamic early warning system of the soft rock tunnel extrusion large deformation catastrophe.
Owner:GUANGXI UNIVERSITY OF TECHNOLOGY

Tunnel full-face surrounding rock deformation testing method and system

The application discloses a tunnel full-face surrounding rock deformation testing method and system, and relates to the technical field of geotechnical engineering, and comprises the following steps: driving a force sensor on a pre-constructed annular guide rail to rotate and position a target test point pair, and applying radial pressure to both ends of the force sensor, wherein the force sensor is arranged radially along the annular guide rail, and error compensation learning is further included after the rotation and positioning; collecting deformation data of the target test point pair, and obtaining a deformation modulus of the target test point pair through data analysis; testing each test point pair on the annular guide rail, constructing a deformation modulus distribution field according to a test result, obtaining a deformation modulus spatial distribution map through optimization correction, and determining a supplementary measurement position. The application is used to solve the problems of low efficiency and insufficient self-adaptation of a traditional tunnel surrounding rock deformation modulus testing method.
Owner:ANHUI ROAD & BRIDGE GRP +1

Method for judging multiple fracture stages of buried hill oil and gas reservoir based on tectonic stress field evolution

ActiveCN121480145BGeological explorationPaleozoic
This invention relates to the field of oil and gas reservoir geological exploration technology, specifically a method for identifying multiple fracture stages in buried hill oil and gas reservoirs based on tectonic stress field evolution. The method includes the following steps: Tectonic evolution history analysis step: Geological data of the target buried hill oil and gas reservoir area are systematically collected. Based on seismic profiles, stratigraphic contact relationships, tectonic deformation characteristics, and chronological data, a comprehensive analysis is conducted to construct a multi-stage tectonic evolution history of the area from the Paleozoic to the Cenozoic, accurately determining the geological age and tectonic nature of each key tectonic event. Compared to existing technologies, this application establishes a quantitative discrimination model based on mechanical principles through paleostress field numerical simulation and quantitative prediction of theoretical fracture parameters. This standardizes and quantifies the fracture stage identification process, significantly reducing the uncertainty caused by human factors, improving the objectivity and repeatability of the discrimination results, and achieving a leap from qualitative analysis to quantitative discrimination.
Owner:SOUTHWEST PETROLEUM UNIV

A joint correction method and system for GNSS non-tectonic deformation and a storage medium

The application discloses a joint correction method and system of GNSS non-tectonic deformation and a storage medium. The method obtains GNSS pseudo-range and carrier phase observation data and precise orbit, clock error and other precise products, constructs three-component displacement time series caused by non-tidal atmospheric load, non-tidal ocean load and land hydrology load and temperature-driven thermal elastic displacement time series, and unifies to a reference frame and a time system consistent with GNSS solution. The non-tectonic displacement vector is interpolated to the observation epoch by time, converted from the local coordinate system ENU to the geocentric rectangular coordinate system, and projected to the line-of-sight direction of the satellite to the reference point of the station to form an equivalent geometric distance correction term; the correction term is applied to the pseudo-range observation and the carrier phase equivalent meter domain observation in the same domain as the observation, and then GNSS daily arc segment precise solution is performed to output the coordinate time sequence, which is preferably used for precise point positioning integer ambiguity fixing technology.
Owner:WUHAN UNIV

Ultra-large simulation device and method for basin difference tectonic deformation

The invention discloses a basin difference structure deformation ultra-large simulation device and method, and relates to the technical field of basin simulation, the basin difference structure deformation ultra-large simulation device comprises a supporting frame, two basin simulation bearing boxes are horizontally and fixedly assembled on the inner wall of the bottom of the supporting frame, four groups of bearing box force application mechanisms are vertically and fixedly assembled on the supporting frame on the peripheral side of each basin simulation bearing box, and a basin simulation manufacturing mechanism is horizontally and fixedly assembled on the upper end surface of the supporting frame; the two fluid material bearing tanks are arranged in a mirror image mode and are fixedly arranged on the outer sides of the supporting frames on the non-adjacent sides of the two basin simulation bearing boxes respectively; a solid material bearing box and two movable supports are horizontally arranged on the other two sides of the supporting frame respectively, and a high-definition camera is fixedly assembled on each movable support. And stress monitoring equipment is uniformly arranged in the box body. The output ends of the solid material bearing box and the two fluid material bearing tanks are connected to the basin simulation manufacturing mechanism.
Owner:CHINESE ACAD OF GEOLOGICAL SCI

Geological modeling method and device for strike-slip fault zone

The present disclosure relates to the technical field of geological modeling, in particular to a geological modeling method and device for a strike-slip fault zone. The method comprises the following steps: obtaining a top surface image of a model top surface of a strike-slip fault model of the strike-slip fault zone in a process of a structural deformation physical simulation experiment; determining strain characteristic information of an instantaneous shear strain of the strike-slip fault model on the model top surface in the process of the structural deformation physical simulation experiment based on the top surface image; determining structural deformation characteristic information of different structural sections in the strike-slip fault model based on the top surface image and a profile image of the strike-slip fault model; determining physical property parameters of the different structural sections in the strike-slip fault model based on a simulation logging curve and the strain characteristic information of a region where the strike-slip fault zone is located; determining a target profile image from the profile image based on the physical property parameters of the different structural sections in the strike-slip fault model and the structural deformation characteristic information of the different structural sections; and establishing a geological model of the strike-slip fault zone based on the target profile image, thereby realizing geological modeling of the strike-slip fault zone.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Synsedimentary structure simulation experiment device and synsedimentary structure simulation experiment method

PendingCN121640808AEducational modelsMaterial analysisClassical mechanicsTectonic deformation
The invention belongs to the technical field of tectonic deformation simulation experiments, and discloses a co-sedimentary structure simulation experiment device and a co-sedimentary structure simulation experiment method. The co-sedimentary structure simulation experiment device comprises a sand box, a partition plate and a pushing mechanism. The partition plate is detachably arranged in the sand box and divides the sand box into a first box body and a second box body in the gravity direction, the partition plate is provided with a sand passing part, and the first box body and the second box body are communicated through the sand passing part. The pushing mechanism comprises a first pushing part and a second pushing part, the first pushing part is movably arranged in the sand box, and the second pushing part is arranged on the first pushing part in parallel at an interval and can move together with the first pushing part. And the simulated geological layer is driven by the first pushing piece to form a target simulated recess. And the simulated sedimentary sand can fall into the first box body under the driving of the second pushing piece and is deposited into the target simulated recess. The simulation experiment device for the co-sedimentary structure can better fit the actual environment, the physical simulation experiment of the co-sedimentary structure is realized, and the accuracy of the experiment result is improved.
Owner:PETROCHINA CO LTD

Normal fault modeling and seismic imaging method, device and computer readable storage medium

This disclosure relates to the field of seismic imaging technology, and particularly to a normal fault modeling and seismic imaging method, device, and computer-readable storage medium. The method involves constructing a geological model containing a granular aggregate, setting initial conditions for the geological model based on information about the normal fault, simulating deformation of the geological model based on applied deformation conditions to obtain a dynamic model of the structural deformation of the normal fault, acquiring the volumetric strain distribution characteristics along the fault deformation zone based on the dynamic model, determining the acoustic characteristic parameters corresponding to the dynamic model based on the volumetric strain distribution characteristics, and determining the seismic profile image of the normal fault based on the acoustic characteristic parameters. This allows for the acquisition of seismic profiles of simulated normal faults, thereby enabling further research on seismic wave propagation patterns and imaging characteristics.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Atomic strain calculation method based on dynamic neighborhood and deformation gradient tensor

PendingCN121687227AComputational theoretical chemistryComplex mathematical operationsDynamic fieldTectonic deformation
The invention relates to the technical field of deformation research of an atomic system, and particularly provides an atomic strain calculation method based on a dynamic neighborhood and a deformation gradient tensor, and the method comprises the steps: determining a region in which atomic strain needs to be calculated; constructing a dynamic field; and constructing a deformation gradient tensor to calculate an atomic strain tensor. The method has the advantages that the accuracy of strain calculation is high, the calculation efficiency is remarkably improved, and the applicability and expansibility are high.
Owner:BEIHANG UNIV

Multi-cycle structure deposition process identification method based on growth stratum sand box physical simulation

The invention discloses a multi-cycle structure deposition process identification method based on physical simulation of a growth stratum sand box, and relates to the technical field of deposition analysis, geological data of a target area are obtained, and the geological data comprise stratum thickness, sediment type and structure characteristics; based on current stratum thickness equal-proportion conversion, a growth stratum sand box physical model is established. The dynamic coupling relation between tectonic deformation and deposition filling is visually revealed through physical simulation of the growth stratum sand box, so that a researcher can directly observe how the tectonic activity affects the distribution and accumulation mode of sediments and how the deposition action is fed back to act on the tectonic deformation process; the method overcomes the limitation that the traditional geological survey method is difficult to comprehensively reveal the structure-deposition interaction, provides a powerful tool for deeply understanding the multi-cycle structure deposition process, not only enhances the intuition of geology research, but also improves the analysis capability of complex geological phenomena.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Method for quantitatively evaluating shale gas preservation conditions

The present application provides a kind of quantitative evaluation shale gas preservation condition method, comprising steps 1. Collecting gas sample to be evaluated area and carrying out natural gas component and isotope characteristic analysis.Step 2. Based on the kinetic Rayleigh fractionation model of carbon isotope in kerogen hydrocarbon generation process, the reaction process F of system is determined.Step 3. Determine the isotope fractionation factor ε.Step 4. The prediction of methane generation amount.Step 5. Quantitative characterization of natural gas dissipation efficiency.Step 6. Comprehensive evaluation of shale system preservation condition.The present application perfects the quantitative evaluation method of shale gas preservation condition, helps the comprehensive evaluation of shale preservation condition in complex tectonic deformation area of Sichuan Basin periphery, provides basis for the search of beneficial target area in shale gas exploration, and speeds up the exploration and development process of shale gas reservoir.
Owner:SOUTHWEST PETROLEUM UNIV +1

Method for calculating pore reduction amount of sandstones with different pre-storage porosities by using compressive tectonic stress

PendingCN121705538AComplex mathematical operationsPorosityTectonic stress
The invention provides a method for calculating the pore reduction amount of sandstones with different preexisting porosities by using compressive tectonic stress. The method comprises the following steps: (1) selecting parallel samples to carry out experimental analysis test; (2) calculating the vertical stress hole reduction amount in the burying process; (3) recovering the pre-stored porosity when the tectonic action occurs; (4) calculating the sandstone pore reduction amount corresponding to the lateral extrusion tectonic stress; (5) building a function relationship between the tectonic stress and the hole reduction quantity in a classified manner; (6) calculating'one-stage multiple-effect 'of compressive structure deformation; (7) calculating a'multi-period cumulative effect 'of compressive structure deformation; and (8) recovering the diagenetic-pore evolution history of the compressive structure. Compared with a traditional porosity prediction method, the calculation method provided by the invention plays an important role in prediction of the pre-drilling porosity of the reservoir of the mountain-front tectonic zone, the prediction result is finer and more accurate, the practicability is higher, and large-scale popularization and application are facilitated.
Owner:PETROCHINA CO LTD

Physical simulation experiment method, device and equipment based on geological structure and medium

PendingCN121708815AEducational modelsStructural deformationTectonic deformation
The invention discloses a physical simulation experiment method, device and equipment based on a geological structure and a medium. According to the method, a three-dimensional geological evolution model of a target area is constructed according to at least one of geological data, seismic data, geometric data, kinematic data and dynamic data of the target area; based on a similarity principle, constructing a sand box experimental model of the target area according to the three-dimensional geological evolution model; and pouring and slicing the sand box experiment model by utilizing a gelatin solution to obtain a solidified slice model, and determining the structural deformation characteristics of the sand box experiment model based on the solidified slice model. According to the technical scheme, the sand box experimental model is solidified and sliced by utilizing the gelatin solution, so that the sand box experimental model is prevented from being constrained by boundary conditions after deformation is finished, and the accuracy of the sand box experimental model on geological structure analysis is improved.
Owner:PETROCHINA CO LTD

Denudation method, device, equipment and medium in structural physical simulation experiment

The invention discloses a denudation method, a denudation device, denudation equipment and a medium in a structural physical simulation experiment. The denudation method in the tectonic physical simulation experiment comprises the steps that an initial experiment model is determined according to geological information of a target tectonic area, and tectonic deformation parameters are determined according to the geological information; determining a three-dimensional elevation map of the target tectonic area according to the geological information; determining denudation parameters according to the three-dimensional elevation map; according to the denudation parameters and the tectonic deformation parameters, the initial experiment model is experimented, and a final experiment result is obtained. According to the scheme, the tectonic deformation parameters are determined according to the denudation parameters and the geological information determined according to the three-dimensional elevation map, automatic denudation is performed on the initial experiment model of the target tectonic area in the denudation experiment process, the denudation experiment result is closer to the finally expected experiment result, and the efficiency and the accuracy of the tectonic physical simulation experiment are improved.
Owner:PETROCHINA CO LTD

A method and equipment for determining the formation period of a strike-slip fracture.

This invention relates to the field of geological structural deformation simulation technology, and discloses a method and apparatus for determining the formation period of strike-slip faults. The method includes: constructing a numerical model of the target strike-slip fault; determining the overlying stratum thickness at the time of the target strike-slip fault's development based on the numerical model and a pre-generated stratigraphic thickness model; wherein, in the stratigraphic thickness model, the fault segment length of the target strike-slip fault is used to characterize the overlying stratum thickness; and determining the formation period of the target strike-slip fault based on the overlying stratum thickness. This invention studies the influence of overlying stratum thickness on the fault segment length of strike-slip faults, and further discusses the linear relationship between fault segment length and overlying stratum thickness. It improves existing theories to solve more practical problems, such as predicting overlying stratum thickness based on fault segment length and analyzing the formation age of strike-slip faults, providing theoretical support for studying the geological overview and strike-slip fault evolution process of a certain region and for oil and gas exploration.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Depth positioning method and system for variable-grained rock type niobium-tantalum-rare earth ore deposit

The invention provides a deep positioning method and system for a variable-grained rock type niobium-tantalum-rare earth deposit, and relates to the technical field of geological exploration and deposit science. The method comprises the steps that rock samples are collected on the basis of delineation of a favorable mineralization area; carrying out petrology and geochemistry comprehensive analysis on the rock sample to obtain an analysis result; carrying out EBSD analysis on the rock sample to obtain a fluid migration dominant channel direction; based on the fluid migration dominant channel direction, reconstructing fluid evolution historical data controlled by the strain state; the analysis result and fluid evolution historical data are synthesized, and large-scale mineralization conditions caused by a structure-fluid coupling mechanism are determined; and on the basis of large-scale mineralization conditions, a tectonic deformation-fluid pulse-rich mineralization composite mineralization model is constructed, and a deep prospecting target area is delineated. According to the technical scheme, the positioning precision and the prospecting discovery success rate of the deep concealed ore body of the type of ore deposit are remarkably improved.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Structural deformation strength evaluation method and device, electronic equipment and storage medium

The invention discloses a tectonic deformation strength evaluation method and device, electronic equipment and a storage medium. The method comprises the following steps: calculating a stratum curvature of a target layer based on seismic data and carrying out normalization processing; establishing a tectonic deformation strength standard value system based on the formation curvature; obtaining each construction element index of the target layer based on the seismic data and carrying out normalization processing; performing two-dimensional matching on each structural element index and the structural deformation strength standard value system to obtain the value of the structural element index corresponding to each standard value, and performing correlation analysis on the stratum curvature and each structural element index so as to perform weight assignment on each structural element index; and performing tectonic deformation strength evaluation on the target area based on each tectonic element index and the corresponding weight thereof. According to the method, the tectonic deformation strength can be evaluated only based on a small amount of seismic data, and a reliable theoretical basis is provided for optimization of a favorable basin oil and gas storage area.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Method and device for determining absolute time of tectonic deformation, equipment and medium

The invention discloses a method and device for determining the absolute time of tectonic deformation, equipment and a medium. The method comprises the following steps: determining mineral samples at at least two positions of a target structure, and performing low-temperature thermal chronological analysis on each mineral sample; performing thermal history simulation according to the low-temperature thermal chronology analysis result of each mineral sample to obtain a thermal history simulation result of each position of the target structure; and performing difference comparison on the thermal history simulation results of the positions of the target structure to obtain the structural deformation absolute time of the target structure. According to the technical scheme, after the mineral samples at different positions of the target structure are obtained through differential sampling, the tectonic deformation absolute time of the target structure is determined on the basis of low-temperature thermal chronology analysis, thermal history simulation analysis and differential comparative analysis, the problem that the tectonic deformation absolute time of an existing sedimentary basin is difficult to accurately determine is solved, and the accuracy of the tectonic deformation absolute time is improved. The method for determining the absolute time of the tectonic deformation of the sedimentary basin is realized.
Owner:PETROCHINA CO LTD

Simulation method and equipment for strike-slip fracture growth process based on finite element simulation

The embodiment of the invention relates to the technical field of geological structure deformation simulation, and discloses a strike-slip fracture growth process simulation method and equipment based on finite element simulation, and the method comprises the steps: generating a simulation model of strike-slip fracture according to the range of the strike-slip fracture and the stratum material attribute of a work area where the strike-slip fracture is located; wherein two bottom plates are arranged at the bottom of the simulation model; the grids corresponding to the two bottom plates are bound with each other; setting gravity in the Z direction of the simulation model, applying displacement in the Y direction on the left bottom plate and applying displacement in the-Y direction on the right bottom plate so as to simulate the evolution process of the strike-slip fracture; and drawing a particle deformation graph of the strike-slip fracture according to the evolution process. According to the invention, the loss of physical simulation experiment expenditure can be reduced, the simulation precision and accuracy are improved, and the model is enabled to better conform to the real condition. In addition, the method provided by the invention is simple and convenient to operate, and has a better application prospect and important theoretical significance.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

A method for processing EBSD data fusion in geological structure deformation analysis

The application discloses a kind of EBSD data fusion processing methods in geological structure deformation analysis, it is related to geological exploration technical field, including, the EBSD data of target area, geophysical data, geological mapping data and paleotemperature data are collected, and space registration and gridding processing are carried out, generate multi-channel data body;EBSD data in multi-channel data body is handled, microcosmic parameter is calculated, and multidimensional data cube is generated, based on EBSD data in multidimensional data cube, dynamic recrystallization grain is identified and grain size distribution is counted, combine paleotemperature data through Zener-Hollomon parameter equation inversion, generate paleostrain rate field.The application generates structural fracture development probability three-dimensional body graph through elastoplastic damage mechanics model, and completes geological analysis report by comprehensive comparison with original data, realizes the multi-scale, multi-physical field data fusion and structural deformation quantitative analysis from microcosmic to macroscopic, significantly improves the precision and reliability of geological structure analysis.
Owner:QINGHAI TIBET PLATEAU RES INST CHINESE ACAD OF SCI

Deep complex tectonic zone structure simulation method and device

The invention provides a deep complex tectonic zone structure simulation method and device. According to the seismic data of the target area, determining boundary condition parameters and structural evolution stage division information; determining construction loading control parameters according to the boundary condition parameters; obtaining a target simulation stratum of each stage according to the structural evolution stage division information; according to the structure loading control parameters, the transverse control module and / or the longitudinal control module are / is controlled to carry out corresponding extrusion operation on the target simulation stratum of each stage so as to simulate and form a target structure belt of each stage; and a data acquisition module is used for acquiring stress response data and tectonic deformation image data of a target tectonic zone at each stage in the extrusion process, determining stratum response characteristics under the loading of the target simulated stratum structure, and determining an evolution process of the stratum and mechanical control characteristics of the stratum according to the stratum response characteristics. Therefore, the tectonic evolution process is more accurate and controllable, and the consistency of a simulation result and actual geological evolution is improved.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Pot mountain structure evolution dynamic reproduction method based on chronology and sand box physical simulation

The invention discloses a basin mountain tectonic evolution dynamic reproduction method based on chronology and sand box physical simulation, and relates to the technical field of basin mountain tectonic evolution analys.The method comprises the steps that regional stratum chronology samples are collected, and a thermal diffusion-tectonic deformation coupling model is established in combination with literature data; a thermal chronology technology is utilized to invert a construction activity time node, a time window and a stripping rate of a key construction event are quantified, and key parameters of augmentation-denudation are determined; and converting a chronology result into an experiment initial condition, setting a scale model or a mechanism model, and reproducing dynamic interaction between tectonic deformation and a surface process. The occurrence time sequence and duration of the geological events are accurately determined by combining a chronology method and sand box physical simulation, chronology data provides a time frame for tectonic evolution, a sand box experiment simulates the physical process of tectonic deformation, and the chronology data and the sand box experiment are combined to effectively improve the accuracy of the geologic event time sequence. And a solid foundation is provided for deep understanding of basin mountain structure evolution.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Submerged hill oil and gas reservoir multi-stage crack stage discrimination method based on tectonic stress field evolution

The invention relates to the technical field of oil and gas reservoir geological exploration, in particular to a buried hill oil and gas reservoir multi-stage crack stage judgment method based on tectonic stress field evolution, which comprises the following steps: a tectonic evolution history analysis step: a system collects geological data of a target buried hill oil and gas reservoir area; based on a seismic profile, a stratum contact relation, tectonic deformation characteristics and chronology data, a multi-period tectonic evolution history of the region from ancient generations to neonatology is comprehensively analyzed and constructed, and the geological age and the tectonic property of each key tectonic motion event are accurately determined. Compared with the prior art, the method has the advantages that a quantitative judgment model based on the mechanical principle is established through paleostress field numerical simulation and theoretical crack parameter quantitative prediction, so that the crack period judgment process is standardized and quantified, the uncertainty caused by human factors is greatly reduced, the objectivity and repeatability of a judgment result are improved, and the method is suitable for popularization and application. And the crossing from qualitative analysis to quantitative discrimination is realized.
Owner:SOUTHWEST PETROLEUM UNIV

Physical simulation experimental method for controlling Pb mineralization distribution by inverted folding deformation process

PendingCN122307037AMineralization (geology)Kinematics
This invention discloses a physical simulation experimental method for controlling Pb mineralization distribution during the overturned fold deformation process. Belonging to the interdisciplinary field of structural geology and mineral geology, this method achieves accurate simulation of tectonic deformation and Pb mineralization processes through multi-dimensional similarity matching based on geometry, kinematics, dynamics, and time, combined with multi-parameter synergistic control and full-dimensional monitoring. It can intuitively reveal the coupling mechanism between overturned fold deformation and Pb mineralization distribution, explore the mineralization control mechanism of tectonic deformation under multi-physics field conditions, and establish an overturned fold structure prospecting model based on the actual geological example of the Maoping lead-zinc deposit. This clarifies the prospecting direction and delineates favorable exploration target areas for deep-edge exploration of lead-zinc deposits.
Owner:KUNMING UNIV OF SCI & TECH

Method for automatically drawing profile map of elevation gallery belt for constructing physical simulation model

The invention discloses a method for automatically drawing a profile map of an elevation gallery belt for constructing a physical simulation model, and relates to the technical field of tectonic geology, and the method comprises the following steps: unifying coordinates of a digital elevation model of each stage into a coordinate system for constructing a physical simulation experiment; determining a tectonic deformation axial direction based on the digital elevation model, establishing a corresponding sampling reference path parallel to the tectonic deformation axial direction, and generating sampling points distributed at equal intervals on the reference path; establishing a vertical strip at the sampling points along the normal direction of the sampling reference path, and generating the sampling points on the vertical strip according to a fixed interval; elevation values of all sampling points on the vertical sampling strips are obtained, the maximum elevation value, the minimum elevation value and the average elevation value in each strip are extracted, the three kinds of elevation values are sequentially connected in series according to the sampling sequence numbers of the sampling reference paths, three continuous elevation characteristic curves are formed, and an elevation corridor section map is obtained. The method does not need to depend on GIS software, and can process DEM in batches and automatically generate the elevation corridor section map.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Coal field seismic interpretation multi-mode hidden geological disaster information fusion and dynamic modeling method

PendingCN122072792AEnable dynamic predictionresolve ambiguityBiological modelsDesign optimisation/simulationWell loggingEngineering
The invention discloses a coal field earthquake interpretation multi-mode hidden geological disaster information fusion and dynamic modeling method. The method comprises the following steps: acquiring multi-source heterogeneous geological data of a target coal field area; according to the method, the multi-modal feature tensor fusion model is constructed, so that the problem of multiplicity of solutions of a single data source is effectively solved, and the integrity and consistency of hidden geological disaster features are remarkably improved; conventional seismic attributes are extracted, high-order statistical characteristics of a logging curve and geologic body structure parameters are introduced, lithologic sudden change and tectonic deformation are described from multiple dimensions, and the recognition capacity of a micro-scale hidden disaster body is enhanced; a hybrid neural network combining CNN and LSTM is adopted, historical stratum stress field data and geologic features are fused, a space-time prediction module is constructed, the limitation of traditional static snapshot type interpretation is broken through, a geologic structure stability probability body of a future time sequence can be output, and dynamic prediction of a disaster evolution trend is achieved.
Owner:ANHUI COALFIELD GEOLOGICAL BUREAU EXPLORATION & RESEARCH INSTITUTE

A Physical Sedimentation Simulation Method for Geological Tectonic Deformation

This invention discloses a physical sedimentation simulation method for geological structural deformation, relating to the technical field of sedimentation simulation equipment. The invention includes a sedimentation tank with a storage tank outside. A liquid delivery mechanism is fixedly installed inside the sedimentation tank. The delivery mechanism includes a fixed disc mounted on the sedimentation tank, with an outlet corresponding to three sets of outlet holes on the disc. These three sets of outlet holes are located on a rotating disc, which is rotatably mounted with an outlet plate. The outlet plate contains three sets of outlet channels, each corresponding to a different outlet hole. The outlet channels have different flow rates. This invention, through the delivery mechanism, achieves precise control of fluid velocity and flow rate. By adjusting the pump speed and rotating the outlet plate, it can simulate fluid flow under various environments, significantly improving the accuracy and reliability of the simulation experiment and making it closer to actual geological conditions.
Owner:INST OF GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI

An automatic drawing method of elevation corridor profile of a physical simulation model

The application discloses a kind of automatically drawing methods of elevation corridor profile of structural physical simulation model, it is related to the technical field of structural geology, comprising: the coordinates of each stage digital elevation model are unified to the coordinate system of structural physical simulation experiment;Determine the structural deformation axis based on digital elevation model, and the corresponding sampling reference path is established parallel to structural deformation axis, and the equidistant distribution sampling point is generated on reference path;Perpendicular strip is established along the normal of sampling reference path at sampling point, and sampling point is generated on perpendicular strip at fixed interval;The elevation value of all sampling points on vertical sampling strip is obtained, the maximum, minimum and average elevation value in each strip is extracted, the three types of elevation values are sequentially connected in order of sampling serial number of sampling reference path, three continuous elevation characteristic curves are formed, and elevation corridor profile is obtained.The application can batch process DEM and automatically generate elevation corridor profile without relying on GIS software.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Sequence configuration evolution dynamic simulation method

PendingCN121995533AAchieve accurate reproductionImprove reliabilityClassical mechanicsTectonic deformation
The invention relates to the technical field of evolution dynamic simulation, in particular to a sequence configuration evolution dynamic simulation method. The method comprises the following steps: collecting geological data of a research area, determining a structural evolution sequence of the research area and basic geological data of the research area based on the geological data, and constructing an initial stratum geological model; based on the research area tectonic evolution sequence, performing multi-stage tectonic deformation numerical simulation on the initial stratigraphic geologic model to generate a sequence stratigraphic spatial configuration model; performing seismic forward modeling based on the sequence stratigraphic spatial configuration model to generate a forward modeling seismic data volume; comparing the forward modeling seismic data volume with the acquired actual seismic data volume, and performing iterative correction on simulation parameters of multi-period tectonic deformation numerical simulation according to a comparison result; according to the invention, through sequence configuration evolution dynamic simulation, a sequence configuration dynamic evolution deformation process can be accurately determined.
Owner:INST OF GEOMECHANICS

A method and system for realizing integration of geological modeling and stress field simulation

PendingCN122389516ALithologyMechanical models
The application discloses a method and system for realizing integration of geological modeling and stress field simulation, and belongs to the technical field of geological exploration and development. The method comprises the following steps: project setting and data loading, seismic interpretation and attribute analysis, structural modeling, discrete fracture network modeling and stress field simulation. The application takes a three-dimensional structural model as a unified carrier, takes stratum boundaries, fracture distribution and stratum layering as basic constraints of mechanical modeling, realizes complete matching of a geological framework and a mechanical model grid and a spatial range, adopts a fracture distance constraint and a variogram hierarchical control coupling method, distinguishes a main fracture, a secondary fracture and a surrounding rock area, sets different interpolation rules, takes lithology and a tectonic deformation zone as partition constraints, and completes spatial simulation of mechanical parameters under geological recognition constraints. The structural model provides a spatial boundary for mechanical attribute modeling, and mechanical parameter inversion results feed back and correct the geological model, so that two-way data transmission and collaborative constraints are formed.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)