452 results about "Fracture zone" patented technology

The invention discloses a diastrophic stratum deformation analysis and calculation method for an active fault zone, and relates to the technical field of geological engineering calculation, and the method comprises the following steps: (1) constructing a three-field dynamic coupling model based on an energy density gradient, and unifying dimensions of physical parameters of a mechanical field, a seepage field and a temperature field as an energy density function; according to the diastrophic stratum deformation analysis and calculation method for the active fault zone, the problems of multi-physical field splitting and time scale solidification in a traditional method are solved by constructing an energy-mediated multi-field dynamic coupling model and a space-time decoupling algorithm. On the basis of an interaction path of energy density gradient tensor unified mechanics, seepage and temperature fields, instantaneous bidirectional feedback of three-field parameters is achieved, compared with a traditional model, the pore pressure prediction error is reduced, and the calculation efficiency is improved; and meanwhile, the joint simulation efficiency of the second-level seismic event and the ten-thousand-year tectonic motion is improved, the interface parameter continuity error is controlled, and the precision and stability of cross-scale modeling are improved.

The invention provides a burnt rock aquifer water disaster prevention and control design method which comprises the following steps: exploring mine geological and hydrogeological conditions, determining burnt rock distribution characteristics, an aquifer range and a water-rich abnormal region, and constructing a burnt rock aquifer water diversion characteristic judgment system; on the basis of the residual bursting coefficient of the burnt rock, a calculation formula of the development height of the burnt rock stratum water-flowing fractured zone is corrected, and the development height of the working face mining overlying strata water-flowing fractured zone is accurately judged through the formula; constructing a burnt rock water-bearing layer risk evaluation system according to the relationship between the burnt rock water-bearing layer position and the development height of the water-flowing fractured zone; according to the danger evaluation system, the'intercepting-dredging-building 'burnt rock aquifer layering treatment method is provided. Compared with traditional aquifer water disaster treatment, the method has the advantages that the aquifer damage of the burnt rock can be judged more accurately, layered treatment is more economical and efficient, and the method is of great significance to prevention of underground water inrush accidents and underground water loss and realization of safe, efficient and green mining of coal.

The invention belongs to the technical field of shale oil and gas development, and particularly discloses a multi-source information fused horizontal well casing deformation risk section prediction method, which comprises the following steps: representing shaft crack zone information; establishing a work area construction model and an attribute model; with shaft crack zone information as a constraint, disturbance is performed on crack information predicted based on seismic data, and a three-dimensional crack network model is established; a work area geomechanical model is established, and crustal stress distribution characteristics in the shaft direction of the horizontal well are obtained; a work area casing deformation comprehensive database is established by combining casing mechanical attribute data and work area fracturing construction parameters, and fault zone activity factors are obtained based on the Mohr-Coulomb criterion; and establishing a stratum-fracture-wellbore model, obtaining a mathematical model of fracture zone activity factors and casing deformation degrees, and dividing casing deformation risk grades. According to the method, accurate recognition of the well periphery crack network and advanced pre-judgment of the well periphery crack activation risk and the wellbore casing deformation can be achieved, and guidance is provided for formulating targeted casing deformation prevention and control measures.

Systems and techniques may include enhancing production of a natural resource from a reservoir in the earth.By pumping and circulating a material through a reservoir, where the material interacts with proppant or formation material in fracture zones, the interaction reduces permeability in an overproductive fracture zone and redirects flow to an underproductive fracture zone. Through this self-correcting feedback mechanism, flow redistributes more uniformly across multiple fracture zones over time, resulting in more even permeability distribution and improved reservoir performance. The systems and techniques enable passive treatment using chemical solutions that create self-correcting permeability changes, leading to more controlled and efficient resource recovery from subsurface reservoirs.

The invention provides a rock burst and mine earthquake collaborative treatment method based on regional fracturing, and the method comprises the following steps: selecting a working surface, determining a plurality of rock burst control layers with rock burst risks, then determining a plurality of mine earthquake control layers with mine earthquake risks, and determining a plurality of mine earthquake control layers with mine earthquake risks; performing main control layer analysis on all the rock burst control layers in the fissure zone preferentially to determine a multi-stage rock burst main control layer, performing main control layer analysis on all the mine earthquake control layers above the fissure zone to determine a multi-stage mine earthquake main control layer, and performing logging correction analysis; according to the length and width of the working face, the thickness of the rock burst control layer and the number of the mine earthquake control layers, the layout design of separate layer fracturing is determined, the treatment method achieves comprehensive prevention and control of the mine area risk, the treatment effect on the rock burst and the mine earthquake is remarkable, the disaster risk is reduced, and a powerful guarantee is provided for mine safety production.

The invention discloses a surrounding rock deformation treatment method which comprises the following steps: determining the range of a strong influence area in a fault through advanced geological detection, and adopting a graded support strategy for different influence areas: when the width of the strong influence area in the fault is three times greater than the span of a tunnel, arranging an NPR anchor cable group on the ground surface to form a pre-reinforcement system; during benching, NPR anchor rods and steel arches are combined for supporting in a fault non-weak-influence area, and long and short NPR anchor cables are additionally arranged in a fault weak-medium-influence area for collaborative supporting; double-gradient grouting is implemented in front of the boundary of the moderately strong affected zone, a peripheral reinforcing shell is formed by grouting at the first gradient of 2-3 MPa, and an internal permeation network is formed by grouting at the second gradient of 3.5-4.5 MPa; through real-time monitoring of the axial force of the steel arch, a linkage response mechanism of anchor cable secondary tensioning and grouting and supplementing is established. According to the method, through combination of advanced pre-reinforcement, graded support and dynamic regulation, active control over tunnel surrounding rock deformation of the fault fracture zone is achieved, and the collapse risk and the support structure damage risk are effectively restrained.

The invention relates to the technical field of rock mass testing, in particular to a tunnel water-rich fault fracture zone area loading simulation test device and method.The tunnel water-rich fault fracture zone area loading simulation test device comprises a test box, and a partition plate is arranged in the test box; the partition plate divides the test box into a first area and a second area, and the second area is filled with a rock-soil sample; a lateral loading structure; a vertical loading structure; the simulated fault test structure comprises a mounting frame fixedly connected to the partition plate, a driving structure and a simulated fault unit, one end of the driving structure is hinged to the mounting frame, and the other end of the driving structure is connected with the simulated fault unit; the fault simulation unit is hinged to the mounting frame and used for simulating an adjustable fault, and the technical problems that an existing test device cannot dynamically adjust the fault fracture width and the dip angle according to the load effect and cannot perform real-time coupling simulation on a hydrological seepage field are solved.

The invention discloses a coal mine water flowing fractured zone observation method, device and system and a storage medium, and belongs to the technical field of coal mine safety monitoring and early warning. The method comprises the following steps: constructing an initialized transparent geologic model; acquiring historical fracture electrification method data; the initialized transparent geologic model is used for processing historical fracture electrification method data so as to construct a roof water flowing fractured zone virtual mirror image; processing the virtual mirror image of the roof water flowing fractured zone by using a numerical simulation algorithm to obtain simulation monitoring data; obtaining monitoring difference data according to the simulation monitoring data and the electrical method data characteristics corresponding to the early warning threshold; optimizing the initialized transparent geologic model according to the monitoring difference data to obtain a target geologic model; acquiring fracture electrification method data through a drilling electrical method technology; inputting the fracture electrification method data into the target geologic model to obtain monitoring data; judging whether the monitoring data exceed an early warning threshold value or not; and if yes, triggering an early warning mechanism.

The invention discloses a three-dimensional geological model dynamic updating system and method based on multi-modal data fusion, and belongs to the technical field of geological engineering and information. According to the method, multi-source data of geological radar, earthquake, drilling, remote sensing and the like are integrated, and after unified formatting and quality optimization preprocessing, geological features of a stratum interface, a fault zone and the like are automatically extracted by using a deep learning network; multi-source feature data fusion is realized through space-time registration and attention; constructing a three-dimensional geologic model by adopting a TIN and Octree mixed structure based on a fusion result; dynamic updating of the model is realized through incremental detection and a local reconstruction mechanism, and the boundary of the model is optimized by adopting a radial basis function interpolation. According to the method, the problems of single data, updating lag and the like of a traditional method are solved, the modeling precision and efficiency are remarkably improved, and reliable support is provided for geological engineering decision making.

The invention discloses a roof strata fissure zone monitoring method, which comprises the following steps: S1, layering an overlying strata in the vertical direction according to the height of the overlying strata to form a plurality of sublayers; s2, performing drilling operation on each sub-layer to form a mounting hole for mounting an optical fiber sensor, mounting the optical fiber sensor in each mounting hole, and monitoring the fracture development condition of each sub-layer in real time by using the optical fiber sensor so as to judge the development height of the fractured zone; s3, after the installation of the optical fiber sensor is completed, the installation hole is sealed by using concrete grout so as to prevent the interference of the external environment on the optical fiber sensor; and S4, the optical fiber sensor is connected with a monitoring station, so that the monitoring station can receive, process and analyze transmission data from the optical fiber sensor to judge the development height of the overlying strata fissure zone. The roof rock stratum fissure zone monitoring method has the advantages of simple steps, high monitoring efficiency and the like.

The invention discloses a stochastic finite fault source model establishment method, which comprises the following steps of S1, determining a geometrical shape of a seismic fault based on regional geological data and seismic monitoring data, and estimating a non-planar fault parameter and a fault plane average sliding amount in combination with historical data and an empirical formula; s2, estimating distribution and sliding strength of concave-convex bodies and obstacles on the fault surface according to historical seismic inversion data, and obtaining the sliding amount of each sub-fault by randomly disturbing the average sliding amount; s3, the discrete fault plane serves as a sub-fault unit, and after an initial fracture point and the average fracture speed are determined, random fracture initial time conforming to normal or power law distribution is generated based on a random number method; s4, calculating the seismic oscillation time history of each sub-fault by adopting a random point source method, superposing contributions, introducing the influence of a shallow velocity structure V30, and generating a three-dimensional seismic oscillation field; and S5, comparing actual strong earthquake record adjustment parameters, and outputting a multi-risk-level earthquake motion parameter evaluation result after iterative optimization. According to the method, by fusing randomness and empirical data, the simulation precision of the seismic source model on the uncertainty of the seismic process is improved, the influence of the potential maximum-magnitude earthquake possibly occurring in the active fault zone in the future can be effectively estimated, the seismic oscillation simulation precision and the calculation efficiency can be improved, and the method is suitable for engineering structure aseismic design and seismic disaster evaluation.

The invention discloses a rock hydraulics-based high-position separation water monitoring and drainage control method, which comprises the following steps of: determining a separation water development position according to an early-stage exploration result; a monitoring drill hole and a drainage drill hole which are communicated with the separation water are constructed on the ground surface above the development position of the separation water; a water pressure sensor is arranged at the bottom in the monitoring drill hole; a water suction pump is arranged in the drainage drill hole; a plurality of micro-seismic sensors are arranged in a roof rock stratum of the working face at set intervals, and the development height of the water flowing fractured zone is determined according to micro-seismic signals collected by the micro-seismic sensors; determining the thickness of a separation layer water-resisting layer according to the development height of the water flowing fractured zone; determining an abscission water warning water head according to the thickness of the abscission water water-resisting layer; determining a warning water level according to the separation water warning water head and the separation water bottom plate elevation obtained through early-stage exploration, and setting the determined separation water warning water level as an early warning water level; the water level data in the monitoring drill hole are collected in real time, the real-time water level is obtained, when the real-time water head exceeds the early warning water level, the water suction pump is started to pump separation water, and separation water level control is achieved.

The invention relates to the technical field of oil-gas exploration, and discloses a strike-slip fracture identification method and device based on a multi-seismic attribute fusion technology, and the method comprises the steps: firstly obtaining the seismic data and geological background data of a target region, and then carrying out the recognition of a strike-slip fracture based on the geological background and seismic data; seismic section interpretation is carried out, coherence, curvature, tensor thickness, symmetry illuminance attributes and maximum likelihood attributes are calculated, and finally, according to the fracture scale, optimal attributes are determined and quantitative fusion is carried out to identify the strike-slip fault zone. According to the method, for fractures of different scales, different attributes are preferably selected for quantitative fusion, the advantage complementation effect between different features is achieved, the fracture recognition precision and sensitivity are improved, and researchers are effectively assisted in research work in the aspects of fracture and well location.

The invention belongs to the technical field of geological disaster monitoring, and discloses an automatic geological disaster monitoring device and monitoring method. The method comprises the following steps: completing joint monitoring of surface goaf deformation on the ground; for a bent sinking zone, a fissure zone and a caving zone of the goaf, an electrical method system, a micro-seismic monitoring system and a distributed optical fiber sensor are arranged underground, dynamic tracking and monitoring of underground resistivity, fissure zone expansion, caving zone rock mass breaking change and the boundary of the goaf are conducted respectively, and delineation of underground abnormal bodies is completed; and cooperative monitoring: completing cooperative dynamic coupling monitoring of deformation processes of the curved sinking zone, the fissure zone and the caving zone of the goaf. According to the method, the accurate delineation of the underground abnormal body is completed; and dynamic coupling monitoring of ground and underground deformation of the coal mine goaf is realized.

The invention discloses a tunnel rock-soil deformation identification method and system, relates to the technical field of tunnel and underground engineering monitoring and early warning, and remarkably improves the reliability and timeliness of tunnel weak surrounding rock deformation risk identification. In the abrupt change response link, a time domain convolutional network and a displacement acceleration self-adaptive strengthening mechanism are introduced, so that the capturing capability of the system on nonlinear displacement surge is improved in a leap-over manner; according to the method, the acceleration component is focused and the physical constraint weight is applied, so that the sudden change event is locked in real time, and accidents such as unstability of the tunnel face are prevented from being missed in report; in order to solve the problem of point cloud registration distortion of a joint development area, the geological law of a rock mass structural plane is fused into a registration algorithm, and overall deformation misjudgment caused by rock mass local dislocation is inhibited from the source through a Gaussian mixture model coupling normal elastic deformation threshold and a tangential coulomb friction criterion; the measurement precision of laser scanning in a fracture zone and a fault zone breaks through environmental limitation, and a reliable basis is provided for supporting decision.

The invention discloses a method for selecting a post-mining grouting position for thick-layer roof sandstone water disasters. The method comprises the following steps: (1) finely probing a geologic body of a to-be-grouted area; (2) representing the development degree of the native fracture and the water inflow based on a water inflow observation result in the working face pushing and mining process in combination with the development degree of the native fracture, and evaluating the development condition of the water guide channel of the working face; (3) predicting the development height of the water flowing fractured zone; (4) selecting a grouting layer position; and (5) selecting a grouting position. The method disclosed by the invention has the following beneficial effects: 1, fine exploration work is carried out, comprehensive and accurate cognition of geological conditions is realized, and a foundation is built for subsequent work; 2, the grouting layer position and the plane position are selected scientifically and reasonably, blind selection is effectively avoided, and the water control and roof reinforcement effects are guaranteed; errors and waste are reduced, and construction efficiency and quality are improved.

The invention relates to the technical field of gas reservoir geology evaluation and exploration through earthquake three-dimensional data, in particular to a model and method for predicting rock stratum natural gas development potential based on earthquake three-dimensional data. The method comprises the following steps of: obtaining fault displacement and fault zone width, normalizing data to obtain strike-slip fracture deformation strength S, and predicting rock stratum natural gas development potential according to the strike-slip fracture deformation strength S, so that quantitative correlation between strike-slip fracture structure characteristics and natural gas yield is realized. The fracture reservoir control effect can be converted into a quantifiable evaluation standard from experience judgment, and meanwhile reference is provided for complex structure zone fracture reservoir control research.

The invention discloses a key layer presplitting settlement control method based on overlying strata fracture angle arrangement. The method comprises the steps that geological mining parameters of a target mine are collected and determined; based on the physical and mechanical parameters of each rock stratum, determining the horizon height of the key stratum in combination with a thick and hard rock stratum judgment criterion; according to coal seam mining parameters and overlying strata lithology, the height of a water flowing fractured zone is judged, and high and low horizon classification is conducted on the water flowing fractured zone by combining the horizon of the key horizon; according to the development law of overlying strata damage along the fracture angle from bottom to top, the presplitting position in the horizontal direction of each layer key layer in the presplitting range is calculated and determined, and full-section directional presplitting cutting is carried out; based on thick and hard rock stratum mining-induced stress distribution characteristics and a damage deformation transmission mechanism, a working face moving boundary and a reduction distance of a building (structure) protection coal pillar after key stratum presplitting are calculated and determined. According to the method, presplitting implementation is guided based on the key layer fracture rule, and a new technical approach is provided for subsidence control of the mining area.

The invention provides a real-time early warning method and system for the jamming risk of an open-type TBM crossing fault fracture zone, and relates to the technical field of data processing.The method comprises the steps that an analysis area is constructed with three fixed stress monitoring points as vertexes, and a circumcircle of the analysis area is calculated; defining a circular analysis area according to the circumcircle, and performing fan-shaped partitioning on the circular analysis area to obtain a plurality of fan-shaped analysis units; according to the stress change rate data of each fan-shaped analysis unit, combining the corresponding fan-shaped area to determine a weight coefficient, and determining a dynamic adjustment value; calibrating the tunneling parameter by using the dynamic adjustment value to obtain a calibrated tunneling parameter; and according to the calibrated tunneling parameters, risk grade comprehensive evaluation is carried out in combination with surrounding rock lithology, joint development conditions and water inflow data revealed by excavation, and grading early warning signals are generated. According to the invention, early warning of the fault fracture zone jamming risk can be realized.

The invention provides a comprehensive advanced geological forecasting method for an ultra-deep vertical shaft of a metal mine, and belongs to the technical field of water prevention and control in construction of the ultra-deep vertical shaft of the metal mine. The conditions that a tectonic fracture zone, a high confined aquifer and the like possibly exist in the deep stratum, have construction hidden dangers and are prone to causing water burst disasters are accurately recognized, and the advanced detection precision of the deep stratum of the shaft is improved; meanwhile, a feedback forecasting process of geological analysis-geological modeling-geophysical prospecting circle target-drilling verification is formed, a multi-level verification system is constructed, the specific geological condition of an abnormal area is clearly detected, and the advanced positioning and judgment accuracy of a geological abnormal body in a deep stratum is remarkably improved; and by integrating and fusing multi-source geological information, the geological abnormal body information is comprehensively analyzed and judged, so that the requirements of deep rock mass mechanical property analysis and water inrush disaster prevention and control are met.

The invention relates to a method for simulating a complex earthquake load in a triaxial test, and belongs to the field of geotechnical engineering indoor test methods. The invention mainly overcomes the defects in the prior art, and provides a simulation method for complex earthquake load in a triaxial test, which comprises the following steps: acquiring a near-field strong earthquake record, and carrying out baseline correction and filtering processing on the near-field strong earthquake record; decomposing and synthesizing the near-field strong earthquake record; performing time-history conversion on the near-field strong earthquake record, and determining experimental parameters; preparing a soil-rock mixture sample, and saturating the sample; performing an indoor triaxial test on the saturated sample according to the determined experimental parameters; calculating the correlation between the input waveform and the output waveform according to the test result; and analyzing typical dynamic characteristics of the soil-rock aggregate under the action of the near-field strong earthquake according to a test result. The invention provides a method for analyzing test data under the action of earthquake load, and provides an indoor triaxial test method for carrying out research on dynamic characteristics of a rock-soil body by near-field strong shock of an active fault zone.

The utility model relates to the field of open blasting, and discloses a broken zone drilling machine trepanning stage hole protecting device which comprises a pipe body A and a pipe body B. Grouting openings are formed in the surfaces of the pipe body A and the pipe body B, positioning grooves are formed in the top ends of the outer walls of the pipe body A and the pipe body B, three sets of positioning blocks are fixedly connected to the outer side wall of the pipe body B, and the outer side wall of the pipe body B is fixedly connected with the positioning grooves. A grouting mechanism is arranged on the inner wall of the pipe body A, positioning mechanisms are arranged at the bottom ends of the outer walls of the pipe body A and the pipe body B, the inner wall of a sliding block is elastically connected with a triangular block through a reset spring, each positioning mechanism comprises a positioning ring, and the inner wall of each positioning ring is elastically connected with a wedge block through a limiting spring. According to the utility model, through the arrangement of the positioning mechanism, the pipe body A and the pipe body B are assembled and then are quickly spliced and connected, so that adjustment can be carried out according to the drilling depth of a rock layer to support and fix a blast hole.

The invention discloses a method for discriminating coincidence evolution of a recoil-strike-slip composite fracture system and a related product, and relates to the technical field of geological structures and oil exploration, and the method comprises the steps: obtaining a seismic data volume; carrying out fault interpretation and stratum interpretation on the seismic data volume by combining a geologic model and a three-dimensional visualization method; a tectonic seismic section perpendicular to the strike-slip-recoil composite tectonic zone strike direction is selected according to the interpretation result; reading a strike-slip fault zone multi-layer vertical fault displacement in the tectonic seismic section, and drawing a fault displacement-distance curve graph; and according to the fault displacement-distance curve graph, establishing a fault sectional growth and recoil-strike-slip fracture system evolution model. According to the method, on the basis of the three-dimensional seismic data fine analysis result, the strike-slip fault zone vertical fault displacement is read, the fault displacement-distance curve graph is drawn, the fault sectional growth and recoil-strike-slip fault system evolution model is established, and the technical problem of how to quantitatively characterize growth evolution of the recoil-strike-slip composite structure system is solved.

The invention belongs to the technical field of oil and gas field exploration and development, and discloses an earthquake identification method and system for an internal structure of a small-scale low-sequence fault zone, and the method comprises the steps: determining an earthquake frequency division body of a target interval according to geological data; determining a minor fault main component tuning frequency division body and a minor fault background frequency division body according to the seismic frequency division body of the target interval; carrying out breakpoint sharpening processing on the minor fault main component tuning frequency division body to obtain seismic amplitude data after breakpoint sharpening processing; merging the minor fault background frequency division volume and the seismic amplitude data after the breakpoint sharpening processing to obtain a fused data volume; and determining the internal structure of the fault zone according to the fused data volume. According to the method, factors of an internal structure of the small fault zone and seismic reflection characteristics of the small fault zone are considered, breakpoint sharpening processing is introduced for the first time, and the continuous characteristics of small fractures in the longitudinal direction are enhanced. According to the method, the recognition precision of small fault recognition on seismic data can be improved, and the reflected small fault structure is more deterministic.

The invention provides an earthquake risk assessment method and system for a medium-strong earthquake region, and belongs to the technical field of earthquake risk assessment, and the method comprises the steps: carrying out the partitioning construction of an earthquake region, and obtaining a plurality of structural regions; fitting data of historical earthquakes and modern small and medium earthquakes in each structural area to obtain an earthquake magnitude-frequency relational expression, and calculating to obtain an incidence rate, an earthquake generation probability and a recurrence interval of any level of earthquake in each structural area; and for each structural area, a spatial smoothing method is used to distribute weights such as the occurrence rate, the earthquake generation probability and the recurrence interval of any grade of earthquake in each earthquake grade, and the like, to each fault zone. According to the method, the seismic activity model is established by using the spatial smoothing method, after smoothing processing, the earthquake risk is generally improved and is close to the historical earthquake occurrence situation, and for the areas with unclear earthquake-generating structures and weak seismic activities, the earthquake with large energy release occupies a more important position in distribution, so that the seismic activity is improved. And the potential danger of the earthquake activity can be reflected more accurately.

The invention discloses a method, a device, equipment and a medium for determining magma distribution of an intrusive fault zone, and relates to the technical field of oil and gas field exploration and development, and the method comprises the following steps: loading geological data of a target area; based on the geological data, constructing a fault plane of the magma intrusive fault zone in the target area; calculating a magma distribution indication factor of the magma intrusive fault zone in the target area; and determining a magma distribution position in the magma intrusive fault zone in the target area. According to the method, the value characteristic and the frequency characteristic of the earthquake information amount of the magma invading body are considered, the magma distribution indication factor S of the igneous rock invading fault zone is provided by combining the distribution characteristic of the fracture, the purpose of quantitatively predicting the magma distribution range in the fault zone is achieved, and the method can be used for predicting the closed and oil and gas dredging part in the fault zone. The brought prediction effect is more in line with the actual geological law; and a large number of geological parameters do not need to be counted, research can be directly carried out on seismic data, and the implementation process is more intuitive and rapid.

The invention relates to a geological fracture recognition method based on multi-source geophysical data and a computer system, and solves the problem of high-precision recognition of tiny fractures and complex fracture zones. The method comprises the following steps: acquiring gravitational field model data, full-tensor gravity gradient data and aeromagnetic data of a target area, and carrying out gridding processing, pole conversion processing and edge expansion preprocessing on the data; performing boundary identification calculation on the preprocessed data by adopting a traditional physical field multi-derivative algorithm to generate a first group of boundary information A; carrying out boundary recognition calculation on the preprocessed data by adopting a gravity and full-tensor gravity gradient combined derivative algorithm (an enhanced total horizontal gradient derivative algorithm, a combined derivative algorithm and a combined oblique derivative algorithm) to generate a second group of boundary information B, and carrying out boundary recognition calculation on the preprocessed data by adopting an image edge detection algorithm to generate a second group of boundary information B; generating a third group of boundary information C; and carrying out weighted fusion on the three groups of boundary information to obtain a final fracture identification result.

The invention provides a fault zone three-dimensional structure style identification method and system. The identification method comprises the following steps: S1, collecting seismic profile and horizon data of a research area; s2, fault geometric configuration relations of different structural areas are identified; s3, analyzing section combination features of the fault, and judging and identifying a plane combination pattern of the fault in combination with plane distribution features of the fault; and S4, performing three-dimensional view analysis on the section, and judging the three-dimensional structure style of the fault zone. The growth process and the connection mode of the local boundary fault are comprehensively researched through high-precision closed interpretation of the three-dimensional section and the horizon of the boundary fault, and the defect of a two-dimensional view angle is overcome.

According to the roof coal measure aquifer post-mining partition grouting water-resisting layer reconstruction method and the related equipment provided by the invention, for the post-mining coal seam roof water disaster treatment problem, accurate analysis of coal seam roof rock stratum hydrogeological characteristics is realized by comprehensively considering the geological parameters and the stratum distribution parameters of the target mining area. Then, the development height of the water-flowing fractured zone is accurately determined by using a distribution characteristic algorithm and a numerical simulation algorithm, and then the correlation between the water-flowing fractured zone and hydrogeological characteristics is deeply analyzed through a distribution relation algorithm, so that the difference of different geological conditions can be fully considered; therefore, grouting treatment is carried out according to the target grouting treatment strategy of the mined coal seam roof determined based on the distribution relation, the pertinence of water disaster treatment can be remarkably improved, the problem that the grouting treatment effect is poor due to complex geological conditions is solved, and the water disaster risk of the coal seam roof is effectively reduced.

The invention discloses a deep strike-slip fracture fracture zone identification method, and the method comprises the steps: converting original seismic data into a frequency-wavenumber domain through Fourier transform, carrying out the multi-scale decomposition and downsampling through a radial filter cascade architecture, converting the data into a time-space domain through a directional basis filter, and carrying out the filtering. And acquiring an optimal direction by adopting an optimization strategy, and constructing characterization attributes based on neighborhood attribute differences to extract multi-scale fracture attributes. And introducing a plurality of level set functions to construct an energy functional model, and solving through a dynamic weight adjustment algorithm to realize internal and external band identification. And constructing a model by means of a topological relation based on distance-angle constraint to analyze the three-dimensional space topology. The problems that traditional data processing is not fine and model analysis is insufficient are solved, accurate recognition of the deep strike-slip fracture fracture zone is achieved, and the method has important application value in the fields of oil and gas exploration and development and the like.