67 results about "Outcrop" patented technology

The invention relates to a construction method, device, equipment and medium of a complex geological reservoir model, and relates to the technical field of oil exploration and development. Comprising the following steps: combining obtained riverway scale parameter data obtained by field actual measurement, a three-dimensional digital outcrop profile of an outcrop profile of a research area, a geological knowledge database of configuration units at all levels of a sub-facies reservoir of the research area, and sedimentary microfacies distribution of the outcrop profile of the research area obtained by combining the riverway scale parameter data to obtain X, Y, Z, Z, Z and Z; performing two-dimensional training image slicing in three directions of Z and Z; and performing three-dimensional training image simulation on the two-dimensional training image slices by using an s2Dcd-DS coupling algorithm, and performing three-dimensional geological modeling by using a multi-point geostatistics modeling algorithm to obtain a three-dimensional geological model. According to the construction method provided by the invention, the complex geological conditions and structural characteristics of the complex geological reservoir such as the plains of the braided river delta can be effectively represented, and oil and gas distribution, well location deployment and remaining oil excavation of the braided river reservoir can be guided.

The application provides a method for grading the quality of altered rock mass of underground tunnels, and relates to the technical field of rock mass grading. The method comprises the following steps: obtaining the Q value of the rock mass through the Q system grading method; defining the first index corresponding to the alteration degree, the second index corresponding to the position relationship between the altered rock mass and the tunnel, and the third index corresponding to the groundwater outcrop condition; calculating the product of the first index, the second index, the third index and the Q value to obtain the corrected Q value; and grading the quality of the altered rock mass according to the corrected Q value. In this way, the alteration degree of the altered rock mass, the position relationship between the altered rock mass and the tunnel, and the influence of the groundwater on the altered rock mass are all taken into account, so that the grading of the altered rock mass according to the corrected Q value is more accurate, and the problem of deviation in the grading of the altered rock mass according to the existing Q system grading method is solved. The application is suitable for grading the quality of altered rock mass of underground tunnels.

The application discloses a coal seam water inrush danger monitoring method and system based on repeated disturbance in an ecological fragile area, and relates to the technical field of mine water disaster prevention and control. The method comprises the following steps: comprehensively determining engineering geological conditions according to the vertical depth of the wind oxidation zone and the coal seam characteristic parameters; performing numerical simulation by using a numerical model; based on the positions of the fan lanes of the coal seam working faces in the mine field exploration line graph, determining the water prevention and isolation coal rock pillar setting under repeated disturbance of the coal seam working face near the ecological fragile area coal seam hidden outcrop by using the development heights of the two zones and the height inhibition coefficients of the wind oxidation zone two zones when the coal seam working faces are mined for different lengths, and monitoring the water inrush danger of the working face according to the roof failure characteristics of each working face in the regional roadway. The application can realize real-time and accurate water inrush danger monitoring of the working face near the coal seam hidden outcrop.

The invention belongs to the technical field of sedimentary geology research, and discloses a quantitative sedimentary rock classification evaluation method and system based on biological disturbance. The method comprises the following steps: acquiring a high-resolution image of a unit area of a field outcrop or core sample; identifying a relics fossil or a biological disturbance area in the high-resolution image, and obtaining a biological disturbance quantity percentage of the high-resolution image by using a unit grid method; identifying the belonging number of the relics fossils in the high-resolution image; measuring to obtain the diving hole diameter of each relics fossil, and obtaining the diving hole diameter of the maximum relics fossil; obtaining the natural layer thickness of the field outcrop or rock core sample and the average particle size of the surrounding rock; calculating to obtain a biological disturbance coefficient; and based on the biological disturbance coefficient of the field outcrop or rock core sample, evaluating to obtain a classification evaluation result of the sedimentary rock. When a researcher performs classification evaluation on the same or similar sedimentary rock samples, a relatively consistent result can be obtained, and the repeatability and comparability of evaluation are enhanced.

The embodiment of the invention discloses a method and a device for characterizing a microbial beach deposition configuration, electronic equipment and a medium. The method comprises the following steps: carrying out grading treatment on microbial beach deposition configuration, determining deposition configuration characteristics and configuration unit identification marks of different grades of microbial beach deposition configuration units, and carrying out outcrop interpretation and single well interpretation; the three-dimensional seismic data and the logging data are utilized to determine the superposition pattern and the superposition characteristic of the microbial hillock beach sedimentary configuration unit; the method comprises the following steps: analyzing evolution characteristics of a microbial hillock beach sedimentary configuration according to sedimentary configuration characteristics and superposition characteristics obtained according to field geological outcrop data, three-dimensional seismic data and logging data in combination with sedimentary forward numerical simulation, and establishing a corresponding sedimentary configuration mode; by adopting the scheme, the geological basis is provided for characterization of high-quality reservoirs and connected units by analogy of field geological outcrops, recognition of the microbial hillock beach sedimentary configuration units, summarization of the stacking pattern of the sedimentary configuration units and description of sedimentary evolution characteristics.

The application discloses a surveying-based binary structure small watershed division method and system, and particularly relates to the field of watershed division. Basic data processing of the application includes collecting and preprocessing topography, remote sensing and other data, establishing a basic database, converting vector contour line data into DEM and filling in depressions, generating a non-depression DEM, determining water flow direction by using a D8 algorithm, calculating cumulative flow, and generating a river network. The river channel is converted into a vector runoff network, the sub-watershed range is extracted and mapped, the outcrop point of underground river or karst spring is taken as a corrosion reference, the watershed outlet is determined in combination with the main river channel of a large river, and a complete correlation system is constructed. Finally, the development of the underground water system pipeline is determined through hydrogeological investigation, geophysical prospecting, drilling and pumping test, the results of comprehensive investigation, geophysical prospecting, drilling and pumping test are comprehensively considered to accurately correct the boundary of the underground water system, and the underground water system distribution map conforming to the actual conditions is formed in combination with remote sensing images and administrative division maps.

The invention provides a non-contact measurement method and system for the internal average opening degree of a high-position dangerous rock mass crack, and the method comprises the steps: carrying out the preliminary recognition of a dangerous rock mass through photographing equipment, and obtaining a preliminary recognition result; based on the preliminary recognition result, detonators are hoisted at the same height of the dangerous rock body, the explosive loading amount and the detonating distance are controlled, and the detonators are detonated; performing system identification on the dynamic normal stress time travel curve and the relative normal vibration speed time travel curve, and calculating the equivalent dynamic stiffness of the tension fracture under the dynamic load; and based on the equivalent dynamic stiffness, the initial average open degree of the outcrop and a fracture stiffness-open degree relation model calibrated through an indoor test, the internal average open degree of the high-position dangerous rock mass fracture is obtained through inversion. Through a non-contact measurement-model intelligent inversion technology chain, efficient and accurate measurement of the fracture opening of the dangerous rock mass is realized, and an innovative solution is provided for geological disaster prevention and control.

This application provides a method, apparatus, equipment, and storage medium for intelligent identification and extraction of rock mass structural surfaces on open-pit mine slopes, relating to the field of rock mass surface feature recognition technology. The method includes: acquiring a high-precision three-dimensional geological outcrop model; performing two-dimensional projection on different areas of the model and annotating the structural surface contours, training a semantic segmentation model; using the trained model to identify the target slope projection image and obtain two-dimensional structural surface recognition results; mapping the two-dimensional structural surface traces back to the three-dimensional model based on projection parameters to obtain three-dimensional spatial structural surfaces; cleaning and merging the three-dimensional structural surfaces, removing skew or distorted structural surfaces, merging coplanar structural surfaces, and calculating the structural surface normal vectors to obtain dip, dip angle, and other attitude information. This application solves the problems of low efficiency, high risk, and reliance on manual experience in traditional measurement methods, realizing automated, batch, and high-precision extraction of rock mass structural surfaces on open-pit mine slopes.

The application discloses a kind of seismic facies drive deep carbonate high-precision sedimentary microfacies recovery methods, comprising: basic data collection;Well-seismic calibration;Establish regional isochronous sequence stratigraphic framework;Logging interpretation;Sequence framework within sedimentary facies division: seismic facies division;Establish seismic facies-sedimentary facies conversion relationship;Isochronous sequence stratigraphic framework within division strata slice;Optimization seismic attribute;Establish single factor sedimentary index-seismic attribute relationship;Attribute volume isochronous strata slice;Seismic facies-sedimentary facies under the constraint of high-precision isochronous sedimentary microfacies drawing.The application can accurately predict sequence within sedimentary facies belt boundary by establishing sedimentation-seismic correlation under the condition of less drilling, outcrop;Further optimization can reflect the seismic attribute of sedimentary characteristics, calculate isochronous strata slice;Isochronous sedimentary facies map is obtained by attribute-sedimentary correlation conversion.In practical application, good effect is obtained, and the coincidence rate with actual drilling is high.

The invention provides a copper mine target area prediction method and system based on multi-source information data analysis, and relates to the technical field of computers.The method comprises the steps that firstly, multi-source copper mine related basic information such as earth surface rock outcrop records, soil element content data, area gravity observation data, remote sensing image feature data and geologic structure surveying and mapping data of a target area is collected; performing clue traceability mapping processing on the multi-source basic information to generate a plurality of groups of traceability clue sets; then performing space-time coupling networking processing on the multiple groups of traceability clue sets to construct a dynamic coupling clue network; performing signal resonance strengthening processing on the dynamic coupling clue network to generate a resonance strengthening network; and finally, target region convergence defining processing is executed based on the resonance strengthening network to generate a copper mine target region prediction result, the mineralization potential region range is gradually reduced, the generated copper mine target region prediction result of the target region has higher accuracy and reliability, copper mine exploration work can be effectively guided, the exploration efficiency and success rate are improved, and the exploration cost is reduced.

The application discloses a front land basin surface outcrop three-dimensional geological modeling method, system and device, which comprises the following steps: superimposing research area surface elevation data and a geological map, stereoscopically displaying the geological map and matching the actual surface outcrop stratum; establishing a research area surface outcrop stratum information comprehensive table by combining the geological map through field outcrop geological investigation; superimposing a two-dimensional seismic profile and a three-dimensional geological map, cutting to obtain a modeling range, performing surface layer interpretation according to the research area surface outcrop stratum information comprehensive table, and establishing a shallow geological structure model; calibrating a layer according to research area drilling data, establishing an underground deep geological structure model; and performing three-dimensional space structure modeling according to a geological map and field investigation understanding through computer three-dimensional reconstruction technology in a region without seismic data, and establishing a surface outcrop three-dimensional structure geological model. The application has low operation cost, controllable modeling time, high rationality and reliability of the model, and saves exploration cost.

The invention relates to the technical field of hydrocarbon source rock thermal evolution history reconstruction, in particular to a hydrocarbon source rock thermal evolution history reconstruction method, device, equipment, medium and product, and the method comprises the steps: obtaining thermal evolution parameters of a hydrocarbon source rock sample of a target layer, and constructing a thermal history model of the target layer; obtaining geological data of a target stratum, and establishing a burial history model of the target stratum; based on the thermal history model of the target stratum and the burial history model, carrying out constraint, and reconstructing a hydrocarbon source rock thermal evolution history; the accuracy and the reliability of the field outcrop reconstruction hydrocarbon source rock organic matter thermal evolution history can be improved.

The invention provides a construction tunnel surrounding rock stability prediction method and system, and relates to the technical field of tunnel engineering, and the method comprises the steps: obtaining the three-dimensional point cloud data of a tunnel face rock mass outcrop, and detecting a surrounding rock hidden structure through a geological radar; constructing three-dimensional point cloud data of the concealed structure and aligning the three-dimensional point cloud data with coordinates of the rock mass outcrop point cloud data; calculating the distance from the concealed structure to the tunnel face, and screening out high-risk concealed structure points; establishing a spherical influence area by taking the high-risk hidden structure point as a center, and extracting a rock mass outcrop point in the area as a high-risk surface monitoring point; stress testing is carried out on the monitoring points, and displacement meter sensors are arranged to obtain deformation data; collecting a rock sample to obtain geological strength data, and calculating a surrounding rock damage energy index; estimating a surrounding rock damage energy index and stress of the high-risk hidden structure point through a spatial interpolation method; and calculating the stability coefficient of the surrounding rock by combining the two, grading the stability of the surrounding rock, and formulating corresponding response measures. The tunnel surrounding rock stability can be effectively predicted.

The application discloses a geological multi-scale data hierarchical retrieval method and electronic equipment, and belongs to the technical field of geological data management and retrieval, and comprises the following steps: S1, a multi-scale data system, namely, a three-level data structure system of a digital outcrop model, a rock sample and a rock sample, is constructed; S2, an association mechanism between the three-level data structure system is established, and the association mechanism comprises the following: digital outcrop model-rock sample association and rock sample-rock sample association; and S3, bidirectional association retrieval and feature retrieval are adopted to perform multi-scale data hierarchical retrieval. The efficiency of digital outcrop-rock sample-rock sample association retrieval is improved, the multi-dimensional retrieval capability is possessed, multi-class feature combination query is supported, lithology + era + composition and the like, seamless connection of macroscopic-mesoscopic-microscopic data can be realized, a bidirectional traceable chain is established, and data tracing is complete.

The invention relates to the field of detection and analysis, in particular to a geological structure complex region coal seam analysis method, which comprises the following steps of: firstly, drawing a geological map based on seismic exploration, drilling and geological outcrop data, calculating a structure complexity evaluation value, and dividing a region into light / medium / heavy feature type regions; secondly, acquiring an apparent resistivity root-mean-square error and a fracture index weighted value by adopting a first logging method aiming at the severe area, and judging the continuous damage degree of the coal seam; the medium area is preliminarily evaluated through a second logging method, and when the standard is not met, a third logging method is introduced to calculate a verification value for secondary verification; the light area focuses on ground geological survey and geophysical and geochemical exploration scanning. And finally, integrating multi-stage exploration results to construct a three-dimensional geologic model, and intuitively presenting coal seam distribution and tectonic variation characteristics. According to the method, the accuracy of coal seam analysis and the scientificity of development decision under complex geological conditions are improved through a partition adaptation exploration strategy, a dynamic verification mechanism and three-dimensional visual modeling.

The present application provides a drilling temperature and hydrocarbon accumulation period prediction method and a drilling temperature prediction device, and solves the problem of temperature prediction deviation in actual exploration and production. The drilling temperature prediction method comprises: judging whether the shallow clastic rock layer system of the study area has drilling data; if yes, obtaining the rock thermal conductivity data of the clastic rock based on the drilling data; if no, obtaining the rock thermal conductivity data under different porosity conditions after the change with the burial depth based on the rock thermal conductivity data measured by the outcrop of the study area; collecting the field or drilling samples corresponding to the formation of the study area, and determining the rock thermal conductivity data of the deep carbonate rock formation for the field or drilling samples; establishing a rock thermal conductivity model of the study area based on the rock thermal conductivity of the clastic rock, the rock thermal conductivity data under different porosity conditions after the change with the burial depth, and the rock thermal conductivity data of the deep carbonate rock formation; and obtaining the formation temperature of the drilling based on the rock thermal conductivity model of the study area to predict the drilling temperature.

This invention relates to a method for quantitatively evaluating the degree of water intrusion in a gas reservoir, comprising the following steps: identifying the geological structure and reservoir physical properties of the water-intruded gas reservoir; collecting outcrop samples from the corresponding target reservoir; deploying monitoring sensors at key points of the simulated samples; encapsulating the protective layer and pre-embedding the simulated injection wellbore, as well as prefabricating the gas reservoir injection well and production well; analyzing formation water saturation in the servo pump injection system; simulating gas injection and production under different operating conditions by setting true triaxial geostress conditions; comprehensively evaluating the quantitative assessment of the water edge by monitoring and collecting acoustic velocity, acoustic emission information, and wide-area electromagnetic signals during the gas injection and production process using pre-embedded sensors; and quantitatively evaluating the degree of water intrusion in the gas reservoir under long-term dynamic injection-production alternation using the above data. This invention can be used for the quantitative evaluation of the degree of water intrusion in gas reservoirs under long-term dynamic injection-production alternation, providing technical support for optimizing the injection-production system of depleted gas reservoirs.

The invention discloses an outcrop position positioning method and device based on a digital outcrop model, and the method comprises the steps: collecting outcrop data of a target basin in a research area, and building a digital outcrop database of the target basin; based on the digital outcrop database, establishing a 2.5-dimensional digital outcrop model of the target basin, exporting a corresponding orthoimage based on the 2.5-dimensional digital outcrop model, and generating a 2.5-dimensional outcrop profile image; and activating any link point in the 2.5-dimensional outcrop profile image, calling a three-dimensional digital outcrop model corresponding to the link point through a preset API interface, and positioning a geological outcrop position corresponding to the link point in the three-dimensional digital outcrop model. The geological outcrop position can be accurately positioned, and efficient and accurate acquisition of geological information is realized.

The application discloses a sea surface height inspection equipment layout method based on an interferometric imaging altimeter, belongs to the technical field of altimeter inspection, and is used for sea surface height inspection equipment layout, and comprises the following steps: obtaining position data of a Glider buoy and temperature-salinity-depth data of a profile observed by the Glider buoy; before a satellite passes, the Glider buoy and a GNSS buoy are simultaneously and regionally launched, and synchronous observation of the GNSS and the Glider buoy is realized; the Glider buoy is positioned when descending and ascending to the outcrop, is matched with a grid position in a swath range observed by the satellite, and sea surface height is inverted by using the temperature-salinity-depth data of the profile observed by the Glider buoy. The application is suitable for data characteristics of different resolutions of the interferometric imaging altimeter, realizes synchronous observation of sea surface height under satellite passing by using satellite data of different spatial resolutions, and accurately completes calibration inspection of the altimeter satellite.

The application discloses a rock and outcrop cross-scale correlation method and system based on multi-modal data, belongs to the technical field of three-dimensional data platforms and geological learning, and comprises the following steps: S1, geological outcrop data acquisition and geological outcrop modeling are carried out, a three-dimensional geological outcrop model is obtained, multi-modal data are obtained by simultaneously collecting basic rock sample data, rock sample analysis and test data and rock sample explanation information; S2, the multi-modal data are managed by using a database and a file management mode, and the rock sample and the outcrop are correlated to obtain correlation data. Through the management of the multi-modal data, the deficiency of single expression mode is solved, and the fusion and integration of the multi-modal data are realized. Through the correlation mechanism of the rock and the outcrop, the deficiency of the existing system in the data correlation is solved.

The invention discloses an image-point cloud alternate interactive fusion processing method suitable for a weak texture scene, and the method comprises the steps: introducing an alternate fusion strategy of an image first and a point cloud second, introducing the structure geometric information of the point cloud into image features in an image enhancement stage through employing a local cross attention mechanism, and carrying out the image enhancement. And at the point cloud enhancement stage, feeding back texture and semantic information of the image to BEV point cloud features to realize bidirectional deep fusion. In the aspect of engineering deployment, the alternative interaction structure can reduce half of Transform interaction modules compared with parallel fusion, the calculation complexity and memory overhead are remarkably reduced, the system has higher reasoning speed and lower deployment threshold, and the method is suitable for being deployed in scenes such as unmanned aerial vehicles, fixed monitoring piles and slope vehicle-mounted platforms. And especially in complex environments of typical rock exposure, vegetation occlusion, low texture contrast and the like in the Three Gorges Reservoir Region, the detection accuracy and robustness of structural elements such as cracks, blocks, slip planes and the like can be obviously improved.

This invention relates to the fields of structural geology and geophysical research, and particularly to a seismic geological analysis method, apparatus, electronic equipment, storage medium, and computer program product for salt structures in low signal-to-noise ratio areas. The method includes: identifying target areas with gypsum-salt structures in low signal-to-noise ratio areas based on the sedimentary background of gypsum-salt development and regional dynamic conditions; acquiring seismic profiles and seismic reflection information of the target areas based on geophysical data; obtaining outcrop information of the surfaces traversed by the seismic profile through field measurements; and performing seismic geological analysis of salt structures in the target areas based on the outcrop information and seismic reflection information. This invention facilitates related work in areas with poor seismic data quality and low signal-to-noise ratios, effectively improving the reliability, accuracy, and scientific rigor of (gypsum)-salt structure interpretation. Its effective application in the western basin has shown a high degree of agreement between predicted results and actual drilling findings.

The invention discloses an ecologically fragile area coal seam water inrush danger monitoring method and system based on repeated disturbance, and relates to the technical field of mine water disaster prevention and control. The method comprises the following steps: comprehensively determining engineering geological conditions according to the vertical depth of a wind oxidation zone and coal seam characteristic parameters; performing numerical simulation by using the numerical model; based on the position of a fan roadway of each coal seam working face in a well field exploration diagram, the water-proof and waterproof coal and rock pillar setting under repeated disturbance of coal mining near a coal seam hidden outcrop in the ecologically fragile area is determined by utilizing the development heights of two zones and the height inhibition coefficients of two zones of a wind oxidation zone when the coal seam working faces are mined with different lengths; and monitoring the water inrush risk in the regional roadway according to the damage characteristics of the inclined mining roof of each working face. According to the invention, real-time and accurate monitoring of the water inrush danger of the working face near the coal seam hidden outcrop can be realized.

The invention discloses an underground rock core replacement method for mudstone outcrop based on a chart. Comprising the following steps: S1, carrying out field mudstone outcrop collection and rock core preparation; obtaining existing rock core experiment data, and making a plate according to the existing rock core experiment data in combination with logging sound waves and density; s2, measuring the initial density of the mudstone outcrop under normal pressure; carrying out initial burial depth homing and density value correction on the outcrop core under the plate; s3, rock parameters of the mudstone outcrop homing point under the chart are calculated; if overpressure exists in the target stratum, overpressure correction is conducted on the mudstone outcrop homing point stratum; and S4, judging whether relevant parameters after the mudstone outcrop core correction meet quality requirements or not. The method has the advantages that logging, underground rock cores, experiments and charts are comprehensively utilized, mud rock outcrops at the same position are corrected and homed through the depth of the charts, the density, speed and mechanical properties of mud rocks at different depths are obtained, and three-dimensional geomechanical fine modeling of the underground stratum is achieved.

This invention provides a multi-scale characterization method and apparatus, a reservoir identification method and apparatus, a storage medium, a processor, and a computer program product, belonging to the field of oil and gas exploration technology. The multi-scale characterization method includes: extracting local images of fracture bodies, fracture zones, and fracture zones that make up the fracture bodies layer by layer from the profile images of geological outcrops within the target area; sequentially measuring the first-scale characterization of the fracture bodies from the extracted local images; the second-scale characterization of the fracture zones and fracture zones; and the characterization of the faults, cavities, fractures, and bedrock properties that constitute each fracture zone and fracture zone, serving as the third-scale characterization of each fracture body. This achieves three levels of characterization of the fracture bodies in the research target and surrounding area: outline, internal structure, and structural details. The characterization results are then used to guide reservoir fine description and prediction, reserve evaluation, and development well deployment, among other related work.

The application discloses an inert gas graphic method for identifying geothermal water migration direction and relates to the technical field of mineral resource exploration. 4 He / 20 Ne ratio and 4 He / 36 Ar ratio; a He 4 He / 20 Ne-He 4 He / 36 Ar binary correlation coordinate system is established, and an atmospheric characteristic value coordinate point is indicated; each sample ratio is taken as a coordinate point and is plotted into the coordinate system, and a geothermal water migration direction is determined according to a change trend from high to low of the ratio. The application can realize accurate identification of the geothermal water migration direction in a high-temperature geothermal field lacking of hot spring outcrops by using the stable chemical properties of inert gases, and effectively avoids interference caused by geological processes such as water-rock interaction, mineral deposition and clay mineral adsorption.

Provided is a virtual drilling modeling method and system based on outcrop fine characterization. The method includes: selecting multiple typical sedimentary stratigraphic point positions respectively, and using an outcrop fine observation technology to characterize distribution characteristics of lithology, occurrence, thickness, and an extension range of each outcrop layer at the typical sedimentary stratigraphic point positions; establishing each vertical sequence stratigraphic histogram according to the distribution characteristics, the vertical sequence stratigraphic histogram being used to reflect vertical changes of actual stratigraphy; constructing a modeling data set according to each of the vertical sequence stratigraphic histograms and preset sample drilling core columns; and based on machine learning and interpolation operation methods, constructing a three-dimensional geological model according to the modeling data set. Through the high-precision outcrop characterization technology, the present disclosure can establish an accurate three-dimensional geological model with lower cost and higher efficiency without actual drilling.

The application belongs to the technical field of temporary plugging agents, and particularly relates to a space three-dimensional rough and tortuous crack temporary plugging agent formula optimization method. The method comprises the following steps: preparing a homogeneous cubic outcrop rock sample, and performing wellbore completion; controlling the three-way stress value, so that the rock sample generates a space three-dimensional hydraulic fracture; knocking the rock sample along the crack path by using a rubber hammer with a rubber pad; bonding steel balls with different particle sizes around the crack surface by using epoxy resin, and controlling the crack opening degree; expanding the pipeline inner diameter, pumping temporary plugging agents with different formulas to plug the cracks; setting the maximum pumping pressure, recording the pumping pressure and fluid pumping volume, observing the temporary plugging agent laying form on the three-dimensional crack surface, and judging whether the temporary plugging agent formula can be used for in-crack plugging construction. The method solves the problems that the existing method cannot completely simulate the temporary plugging and fracturing process and cannot consider the influence of the space three-dimensional crack form, and ensures that the optimized temporary plugging agent formula obtains more reliable temporary plugging effect.

The invention belongs to the technical field of sandstone-type uranium ore metallogenic prediction, and particularly relates to a method suitable for rapidly positioning sandstone-type uranium ore in a target stratum exposure region, and the method comprises the steps: carrying out the processing and analysis of uranium ore geological data, and circling a uranium ore target stratum exposure region A; analyzing aviation radioactive data, and extracting an aviation radioactive uranium abnormal region B; carrying out superposition analysis on the A and the area B to determine a favorable uranium mining area C; processing and analyzing soil geochemical exploration data in the C, and extracting a soil geochemical exploration Th / U abnormal region D and a soil geochemical exploration U abnormal region E; hydrogeological data in the C is analyzed, the Th / U abnormal area D and the U abnormal area E are subjected to superposition analysis, and a target area F beneficial to uranium mineralization is determined; soil radon gas measurement is carried out in the F, and a uranium metallogenic target region G is determined; carrying out soil micro-fine granulation detection in the F, and determining a uranium metallogenic target region H; and G and H are subjected to superposition analysis, and a uranium metallogenic target region I is determined. According to the method, the sandstone-type uranium ore in the exposed region of the target stratum can be efficiently and rapidly implemented.