Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

80 results about "Uranium deposit" patented technology

Method for predicting in-situ leaching mining effect of sandstone-type uranium deposits after blasting

A method for predicting in-situ leaching effects of sandstone-type uranium mining deposits after blasting is provided, which comprises: based on a finite element analysis platform, establishing an HJC rock-blasting constitutive model, and carrying out a blasting numerical simulation; calibrating a cloud map of blasting crack damage by using a Kriging interpolation algorithm; establishing a COMSOL multiphysics model; establishing a coupling interface between the COMSOL multiphysics model and PHREEQC based on MATLAB, and optimizing a cycle duration and a time step; performing a geochemical reaction calculation and saving results, running COMSOL files, and inputting the results of geochemical reaction calculation into PHREEQC to obtain a dynamic cyclic iterative simulation; dynamically correcting migration coefficients of uranyl complexes by integrating an LSTM neural network, and stopping the cycle to output multi-scale dynamic simulation results of migration of uranium.
Owner:SHIJIAZHUANG TIEDAO UNIV +1

Sandstone type uranium mine comprehensive prediction method based on big data

PendingCN121880736AMetallogenyEngineering
The invention belongs to the technical field of sandstone-type uranium deposit mineralization prediction, and particularly relates to a sandstone-type uranium deposit comprehensive prediction method based on big data, which comprises the following steps: step 1, collecting and sorting data, and constructing a multivariate information database; 2, analyzing metallogenic characteristics and constructing a sample set; 3, developing and training a prediction model; and 4, packaging and applying the model. According to the method disclosed by the invention, the deep coupling of geological expert knowledge and a machine learning algorithm is realized through a full technical process of systematically integrating multi-source data fusion, multi-dimensional feature space construction, hybrid drive modeling and prediction function realization, so that the generalization ability of a sandstone type uranium mine prediction model is remarkably improved; the prediction normal form transformation from experience to quantitative decision making is realized, and a reproducible and verifiable technical solution is provided for optimization of the favorable metallogenic area of the sandstone type uranium deposit.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Method, system and equipment for identifying sedimentary facies of sandstone type uranium deposit and medium

The invention provides a sandstone-type uranium deposit sedimentary facies identification method, system and device and a medium, and belongs to the technical field of sedimentary facies identification, and the method comprises the steps: obtaining sandstone-type uranium deposit sedimentary facies multi-source data; time-frequency domain feature data, texture feature and waveform feature data and element ratio feature and statistical feature data related to sedimentary facies in the sedimentary facies multi-source data are extracted; time sequence features, three-dimensional structure features and metallogenic environment features are extracted from the feature data and weighted fusion is carried out to obtain the sedimentary facies category recognition probability. Multi-dimensional information complementation is realized by combining logging, earthquake and geochemical data, covering vertical lithology change, three-dimensional sand body distribution and a sedimentary facies state in a redox environment scene, and the focusing capability and the recognition precision of the model are effectively improved.
Owner:2003 INST OF NUCLEAR IND

Cooperative prevention and control method for underground heat damage of hot water type uranium deposit

The invention provides a hot water type uranium deposit underground heat damage cooperative prevention and control method, and belongs to the technical field of mine heat damage prevention and control, and the method comprises the following steps: S1, monitoring deposit geothermal heat damage data, and obtaining monitoring data of rock mass internal temperature, rock wall surface temperature, drainage ditch water temperature, air wind speed, environment temperature and humidity; s2, based on the monitoring data, calculating heat source heat dissipating capacity and dividing heat damage grades, predicting underground temperature field distribution of the mine, and dividing areas with different heat damage grades; and S3, according to the heat damage grade division, implementing at least one prevention and control means of underground excavation working face heat damage prevention and control, underground equipment heat dissipation prevention and control and operator individual heat damage prevention and control aiming at areas with different heat damage grades to form a cooperative prevention and control system. The cooperative system is formed by integrating three types of core prevention and control means, all-directional coverage of heat damage of different dimensions of an underground excavation working face, an equipment area, operators and the like is achieved, and the overall efficiency and economical efficiency of heat damage treatment are remarkably improved.
Owner:THE FOURTH INST OF NUCLEAR ENG OF CNNC +1

A method for extracting aviation release characteristics in a uranium resource sample set

The present application relates to a kind of extraction methods of uranium resource sample set in flight release feature, specifically to a kind of extraction methods of uranium resource sample set in flight release feature.The present application includes the following steps: step 1, known uranium deposit is converted into polygonal uranium mine area information;Step 2, sample label data in uranium mine area is generated according to fixed distance;Step 3, generate the flight release data of grid format;Step 4, the sample label corresponding to the feature value of flight release data generated by polygonal uranium mine area is calculated;Step 5, the calculation result is saved as uranium resource flight release sample data set.The present application can more accurately reflect the situation of flight release feature in uranium mineralization range.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Method for judging existence form of associated gallium in sandstone type uranium deposit

The invention belongs to the field of basic research of sandstone type uranium ore associated resource evaluation, and particularly relates to a method for judging the existence form of associated gallium in a sandstone type uranium deposit, which comprises the following steps of: measuring the contents of major elements and trace elements of a plurality of uranium ore samples, and judging whether gallium meets the lowest grade requirement of associated resources of the uranium deposit; for uranium ore samples exceeding the lowest grade requirement of gallium associated resources, correlation analysis of gallium elements, main elements and trace elements is carried out, and possible key mineral types closely related to gallium are preliminarily speculated; carrying out slice analysis, and circling an approximate range of speculated possible key mineral types; carrying out scanning electron microscope and energy spectrum analysis combined observation, and determining the existence form of gallium in the uranium deposit; the position exceeding the associated grade gallium is determined through laser in-situ analysis; the gallium-related mineral type is directly determined through electron probe analysis; and comprehensively judging the existence form of gallium in the uranium deposit. According to the method, the existence form of associated gallium in the sandstone type uranium deposit can be accurately and quickly judged.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Method for determining a favorable area for sandstone uranium deposits

The embodiment of the application relates to the technical field of sandstone type uranium ore exploration, and particularly relates to a method for determining a favorable area of a sandstone type uranium ore, which comprises the following steps: collecting well logging data of an exploration area of the sandstone type uranium ore, and gradually determining argillaceous content, total porosity of the exploration area, sandstone content of a sand and shale mixed matrix, longitudinal wave time difference, transverse wave time difference and density, equivalent elastic modulus of dry rock of the exploration area, and conversion relationship between longitudinal wave velocity and transverse wave velocity of rock under saturated fluid condition and a transverse wave velocity prediction curve; then, longitudinal wave impedance, velocity ratio of longitudinal wave and transverse wave and a density model are established; according to the model, three-dimensional elastic data bodies of impedance, density and shear modulus of longitudinal wave and transverse wave are determined by inversion; and according to the three-dimensional elastic data bodies, the favorable area of the sandstone type uranium ore is determined. The method for determining the favorable area of the sandstone type uranium ore according to the embodiment of the application can effectively improve the prediction accuracy of a favorable area of a sandstone type uranium ore.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Gravity gradient deep constraint-based sandstone uranium mine excretion structure authenticity discrimination method

The invention belongs to the technical field of uranium ore geological exploration, and particularly relates to a sandstone uranium ore excretion structure authenticity discrimination method based on gravity gradient deep constraint, which comprises the following steps: step 1, deep fracture ridge extraction based on gravity data; 2, constructing a'deep part-earth surface 'structure projection buffer area; 3, removing a micro-landform catchment area based on a DEM (Digital Elevation Model); 4, extracting earth surface remote sensing abnormity; and step five, space coupling and excretion zone authenticity discrimination are carried out. According to the method, by constructing a deep fracture-earth surface projection buffer area model and combining with micro-landform analysis, earth surface non-structural ponding and salt accumulation interference is effectively eliminated, and an effective discharge zone with a deep root is accurately locked.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Coal and allogenic symbiotic uranium mine coordinated mining degree evaluation method based on mining staggered distance

The invention discloses a coal and allogeneic symbiotic uranium ore coordinated mining degree evaluation method based on mining dislocation distance, and the method comprises the steps: depicting the influence of coal mine mining on underground water and uranium ore leaching through building a mining dislocation distance model, and analyzing the mutual interference relation in the mining process of two ores; according to different space staggered distance conditions, four levels of no / weak risk, low risk, high risk and coordinated mining failure are divided, corresponding technical measures such as natural isolation, dynamic regulation and control or engineering isolation are matched, and a resource loss risk and prevention and control capability evaluation matrix is established. On the basis, the resource preservation level and the pollution risk are quantified, a coordinated mining degree index system covering resource safety, production safety and environmental protection is constructed, and comprehensive evaluation is conducted by combining standardization and an analytic hierarchy process. According to the method, the high-risk staggered distance situation can be effectively identified and avoided, and safe and efficient utilization and sustainable development of mineral resources are realized.
Owner:CHINA UNIV OF MINING & TECH

Estimation method of granite-type uranium ore-forming temperature based on arsenic and selenium content of pyrite

The application provides a method for estimating the temperature of the formation of a granite type uranium deposit based on the content of arsenic and selenium in pyrite, which comprises the following steps: firstly, collecting ore samples of the uranium deposit through field geological investigation; then, observing the ore samples under a microscope and analyzing the elements in the laboratory after processing the ore samples; and finally, processing the laboratory data and comprehensively estimating the temperature of the formation of the uranium deposit. The application has reasonable design and simple process, and is simple to operate and has low technical difficulty in estimating the temperature of the formation of the granite type uranium deposit, which is of great significance for deeply understanding the cause of the uranium deposit and predicting the prospect of the formation of the uranium deposit in the deep part.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

One-step method for electrokinetic uranium extraction and separation from sandstone-type uranium deposit

A one-step method for electrokinetic uranium extraction and separation from sandstone-type uranium deposit is provided, including: using an activating leaching agent to adjust pH of activation environment as pH≤3, converting uranium elements in sandstone-type uranium deposit into positively charged uranyl and its complexes; applying direct current (DC) electric field with voltage gradient of 0.1 V / cm to 2 V / cm between cathode and anode, and allowing the uranium elements to move toward a cathode chamber under the action of the electric field and to undergo selective reduction by receiving electrons to produce a low-valent insoluble uranium-containing substance precipitated on the cathode surface. The present invention, through activating leaching, allows the formation of positively charged uranium ions and their complexes only, and electrophysical effects such as electromigration and electroosmosis promote directional movement of uranium toward cathode, thereby achieving uranium extraction from a sandstone-type uranium deposit.
Owner:GUANGZHOU INSTITUTE OF GEOCHEMISTRY CHINESE ACADEMY OF SCIENCES

Geochemical Tracing Methods for Concealed Sandstone-Type Uranium Deposits

ActiveCN116299764BGeological measurementsMetallogenyUranium mineralization
This application relates to the field of tracer exploration or detection, and provides a geochemical tracing method for concealed sandstone-type uranium deposits. The method provides that by measuring the Mo and Th content in the ground atmosphere and soil, it identifies anomaly zones in the Mo element measurement, anomaly zones in the Mo-Th ratio, and comprehensive anomaly zones. Further measurement of the Mo content in the ground atmosphere is then performed in the comprehensive anomaly zones to determine favorable mineralization areas within the exploration area. According to the method provided in this application, it can effectively identify concealed sandstone-type uranium mineralization information and determine favorable uranium mineralization areas within the exploration area.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

A method for adaptive denoising of seismic data of sandstone type uranium mine based on sparse transform

This invention pertains to data processing technology for seismic exploration of sandstone-type uranium deposits, specifically an adaptive denoising method for sandstone-type uranium deposit seismic data based on sparse transform. The method includes: inputting noisy raw two-dimensional seismic data y; initializing the maximum number of iterations I, setting the outer iterative accumulator i=1, and designing a search range J for the denoising coefficient truncation percentage; for each i, calculating the curvelet transform coefficients s of y; for each j within the search range, applying hard thresholding for denoising, and performing an inverse curvelet transform on the denoised coefficients to obtain the denoised seismic data y. j ; Calculate the noise removal ε corresponding to each j j The entropy; compare the calculated noise ε removed for each j. j The entropy is calculated, and the percentage corresponding to the maximum entropy within the search range is taken as the optimal denoising effect, and the corresponding seismic data is output. If i reaches the maximum number of iterations, the loop is exited, and the denoised seismic data corresponding to the current maximum entropy value is used as the output result. This invention can protect the effective signal while suppressing random noise.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Hydrothermal uranium mine regional resource prediction and evaluation method

PendingCN121365755AForecastingPhysical chemistryUranium mineralization
The embodiment of the invention relates to the technical field of exploration or detection by adopting comprehensive technical means, in particular to a hydrothermal uranium mine area resource prediction and evaluation method. According to the hydrothermal uranium ore area resource prediction and evaluation method, the geological cause of hydrothermal uranium ore is firstly judged, then the favorable mineralization area is delineated, and then the attribute of uranium mineralization is judged, so that the favorable mineralization part is determined from the favorable mineralization area. Compared with the prior art, the method has the advantages that the blindness of resource prediction and evaluation of the hydrothermal uranium ore region is reduced, the evaluation efficiency is improved, furthermore, different weights are given to the attributes of uranium mineralization, the effects of different attributes in evaluation are considered, and the evaluation precision is improved.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

A method of uranium mining from sandstone uranium deposits

The present application relates to a kind of sandstone uranium mining method of uranium mining.The method includes: according to the interval between the interval between liquid pumping well and liquid injection well and the permeability of stratum is determined, and according to the thickness of ore bed determines four perforation segments;One liquid pumping well and one liquid injection well correspond to four perforation segments;And each of the perforation segment corresponds to the direction of surrounding well;When indicating the perforation segment on the liquid pumping well, the surrounding well is liquid injection well, when indicating the perforation segment on the liquid injection well, the surrounding well is liquid pumping well;The length of the perforation segment is obtained and is perforated, and according to the length of the perforation segment, the liquid pumping well and the liquid injection well are fractured from bottom to top, until the direction of four perforation segments on any well is fractured;Injection agent is injected into the liquid injection well after fracturing, and leaching solution is extracted from the liquid pumping well after fracturing;The leaching solution is treated, and uranium product is obtained.The present application reduces the cost while improving the permeability, and improves the uranium leaching amount.
Owner:BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY

Method for improving credibility of ore-forming age test result of sandstone type uranium ore

The invention belongs to the technical field of sandstone-type uranium ore, and particularly relates to a method for improving the credibility of a sandstone-type uranium ore metallogenic age test result, and the method comprises the steps: 1, carrying out the sampling, drilling and screening of a working region; 2, selecting a rock core as a sample according to the mineralization thickness of the ore section; 3, dividing each sample into a plurality of lower samples, and respectively carrying out U and Pb isotope determination and radium content determination on the lower samples; and step 4, performing U-Pb isochrone age fitting according to U and Pb isotope determination and radium content determination results of the plurality of lower small samples in each sample to obtain the ore-forming age of the sandstone type uranium ore. According to the method, personal subjective factors in the sandstone type uranium ore metallogenic age test process can be effectively reduced, and the credibility of the sandstone type uranium ore metallogenic age test result is improved.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

A hydrothermal uranium deposit deep structure detection method based on electromagnetic method combined inversion

A hydrothermal type uranium mine deep structure detection method based on electromagnetic method combined inversion, comprising: based on wide area electromagnetic method and magnetotelluric method, respectively acquiring wide area electromagnetic data set and magnetotelluric data set of each measuring point on the measuring line, and synchronously collecting the resistivity of rock samples, and generating a physical parameter table according to the resistivity; the wide area electromagnetic data set and the magnetotelluric data set are subjected to one-dimensional Occam inversion, and first resistivity profile and second resistivity profile are respectively generated; according to the depth weight function, the physical parameter table, the first resistivity profile and the second resistivity profile, an initial resistivity model is generated; the inversion objective function is iteratively solved by using the combined inversion algorithm, and the two-dimensional resistivity inversion profile is output when the iteration is terminated; the two-dimensional resistivity inversion profile is interpreted according to the physical parameter table, and a three-dimensional structural framework is established by using the interpretation result; based on the three-dimensional structural framework and the two-dimensional resistivity inversion profile, the target area in the target mine field is obtained.
Owner:HUNAN GEOSUN HI-TECHNOLOGY CO LTD

A method for predicting the effect of in-situ leaching of sandstone-type uranium deposits after blasting

The application discloses a kind of post-blasting sandstone type uranium mine in-situ leaching mining effect prediction method, it is related to sandstone type uranium mine in-situ leaching mining effect numerical simulation field, including: based on finite element analysis platform, HJC rock blasting constitutive model is constructed, blasting numerical simulation is carried out;Calibration is carried out to blasting fracture damage nephogram by Kriging interpolation algorithm;COMSOL multi-physics field model is constructed;Based on MATLAB, COMSOL multi-physics field model and the coupling interface of PHREEQC are constructed, and circulation time and time step are optimized;Geochemical reaction calculation is carried out and saved, while COMSOL file is run, the geochemical reaction calculation result is input into PHREEQC, and dynamic cyclic iteration simulation is obtained;Through integrated LSTM neural network, uraniumyl complex migration coefficient is dynamically corrected, and the output uranium migration multi-scale dynamic simulation result is obtained.Circulation termination.The application realizes the multi-scale dynamic simulation of uranium migration in the process of lixiviant injection, and improves the uranium migration prediction accuracy.
Owner:SHIJIAZHUANG TIEDAO UNIV

Mining method suitable for coal mine overlying drainage type sandstone uranium mine

The invention belongs to the technical field of mineral exploitation, and particularly relates to a mining method suitable for a coal mine overlying drainage type sandstone uranium ore, which comprises the following steps: acquiring the spatial position of a sandstone uranium ore body through a geological survey means; digging a shaft from the ground to the bottom layer of the sandstone uranium ore body, and digging a gate way below the sandstone uranium ore body; in the delineated area, dividing the sandstone uranium ore body into a plurality of in-situ leaching units through gate tunneling; continuous low-position grouting-liquid pumping dual-purpose drill holes are drilled in the side wall of the gate way in the in-situ leaching unit, and then a crack connected with the sandstone uranium ore body is transformed into a low-permeability crack through post-grouting; guniting is carried out in the gate way of the in-situ leaching unit to form an anti-seepage reinforcing wall; punching a high-level liquid injection hole in the sandstone uranium ore body corresponding to the in-situ leaching unit; and carrying out in-situ leaching treatment to obtain uranium-containing minerals. The mining-induced fracture in the coal mine overlying drainage type sandstone uranium mine can be treated, a local in-situ leaching uranium mining flow field unit is formed, and therefore in-situ leaching uranium mining in a coal mine overlying drainage type sandstone uranium mine reservoir is achieved.
Owner:NANHUA UNIV

Method and system for determining extension form of fracture deep part of granite type uranium mine

The embodiment of the invention relates to the field of electric or magnetic exploration or detection, in particular to a method and system for determining the extension form of a fracture deep part of a granite type uranium mine. According to the method and the system, the relation between the electrical difference and the underground geologic structure can be quantified by determining the relation between the electrical resistivity of the fracture area and the electrical resistivity of the peripheral area of the fracture area; an underground resistivity inversion cross-section diagram is determined according to the frequency-apparent resistivity of each measuring point, and the deep extension form of the fracture can be visually judged; according to the method, the frequency-apparent resistivity at the measuring point is determined only by using the electric field signal, so that the calculation result is more accurate; and in combination with an underground resistivity inversion section diagram of a detection section, the deduction of the deep extension form of the fracture can be more accurate.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Method for evaluating the effect of medium-basic rock intrusion on uranium mineralization in sandstone type uranium deposit

ActiveCN117368440BRock coreMining engineering
The present application belongs to the technical field of uranium mine, and particularly relates to a method for evaluating the effect of intermediate-basic rock intrusion reformation on uranium mineralization in sandstone type uranium mine, which comprises the following steps: step one, data collection; step two, field core observation and sample collection; step three, evaluation of the space-time relationship between intermediate-basic rock intrusion reformation and uranium mineralization; step four, evaluation of the influence of intermediate-basic rock intrusion reformation on the physical property of ore-bearing layer; step five, evaluation of the influence of intermediate-basic rock intrusion reformation on groundwater migration and driving mechanism; step six, evaluation of the influence of intermediate-basic rock intrusion reformation on uranium mineralization; and step seven, comprehensive analysis and evaluation of the uranium mineralization effect of intermediate-basic rock intrusion reformation in sandstone type uranium mine. The method comprehensively evaluates the influence of intermediate-basic rock intrusion reformation on the formation and preservation of uranium mine, identifies the uranium mineralization effect of intermediate-basic rock intrusion reformation in sandstone type uranium mine, and establishes a sandstone uranium mineralization pattern diagram of intermediate-basic rock intrusion reformation.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

A method for determining the potential of a tectonic unit to produce sandstone-type uranium deposits

This application provides a method for determining the potential of tectonic units to produce sandstone-type uranium deposits, belonging to the field of uranium exploration technology. The method includes: dividing the sedimentary basin area into tectonic compression zones, tectonic extension zones, and tectonic strike-slip zones; determining the type of metallogenic block for sandstone-type uranium deposits; determining the type of metallogenic tectonic unit and favorable metallogenic tectonic units; rapidly delineating metallogenic tectonic units based on the ability of each metallogenic block to produce different types of metallogenic tectonic units; and analyzing the delineated metallogenic tectonic units to determine the first-order favorable metallogenic tectonic unit types. This application utilizes the significant control effect of tectonic unit boundaries on the mineralization of sandstone-type uranium deposits, systematically evaluates the metallogenic potential of different tectonic units, and identifies tectonic units with metallogenic advantages. This allows for precise targeting of preferred exploration areas for sandstone-type uranium deposits, opening up new directions for promoting uranium prospecting practices.
Owner:NANCHANG CAMPUS OF EAST CHINA UNIV OF TECH

Method for co-mining coal and associated uranium deposits

ActiveCN117868823Binhibit migrationBreakthrough Mining InteractionsMining engineeringUranium mine
The application discloses a method for jointly mining coal and symbiotic uranium mine, and belongs to the technical field of mine exploitation. The method is specifically as follows: a coal mine field is divided into three zones, one wing of the field is a uranium mine preferential mining zone, the other wing is a coal mine mining zone, and the middle part is a protection zone; liquid pumping and injecting wells for in-situ leaching of the uranium mine are arranged in the coal mine underground; then, a coal seam in the coal mine mining zone of the coal mine field is mined, and meanwhile, the liquid pumping and injecting wells for the uranium mine are constructed downwardly by using a mining preparation roadway in the uranium mine preferential mining zone to perform in-situ leaching of the uranium mine; after the uranium mine is mined, the overlying coal seam of the uranium mine is mined, and the underlying coal seam of the uranium mine is mined by using a filling type or in-situ unmanned mining. The method for jointly mining the coal mine and the uranium mine can avoid the influence of uranium mine mining on subsequent coal mine mining, saves engineering quantity, and improves the confidentiality of uranium mine mining.
Owner:CHINA UNIV OF MINING & TECH

Automatic layering method for logging data of sandstone type uranium deposit

The invention belongs to a uranium mine data layering method, and particularly relates to a sandstone type uranium mine logging data automatic layering method. A sandstone type uranium mine logging data automatic layering method comprises the following steps: step (1), standardization processing; step (2), calculation; (3) carrying out standardization treatment again; step (4), calculating the entropy value and entropy weight of each principal component; (5) standardizing the comprehensive entropy weight principal component score; and (6) carrying out automatic classification and identification on the score data. The method has the remarkable effects that the influence of external interference factors can be reduced, the lithology division precision is high, the efficiency is high and the like, and a foundation is laid for prospecting work of the sandstone type uranium mine.
Owner:NUCLEAR IND CORPS 216

A method and device for determining an enrichment zone of a sandstone-type uranium deposit and a storage medium

The application relates to a sandstone type uranium ore enrichment zone determination method and device and a storage medium. The method comprises the following steps: obtaining the thorium element content in a spectral logging; calculating the uranium element content according to the thorium element content; calculating a sedimentary environment factor; calculating a clay mineral relative content factor; calculating a argillaceous content factor; calculating an organic matter content factor curve; calculating a ore-controlling comprehensive evaluation parameter; and determining a uranium abnormal enrichment section. The sandstone type uranium ore enrichment zone determination method, device and storage medium provided by the embodiment of the application can effectively calculate the ore body enrichment depth, thereby reducing the exploration cost, improving the exploration success rate, and being applicable to new area exploration, and having high popularization and application value.
Owner:PETROCHINA CO LTD

Sandstone type uranium ore prospecting method based on fault subsidence boundary fault

The invention discloses a sandstone type uranium ore prospecting method based on a fault subsidence boundary fault, and belongs to the technical field of uranium ore geological exploration. Comprising the following steps: S1, determining an underground geological structure; s2, determining fault subsidence and fault types; s3, determining the type of an oxidation zone; s4, determining the type of a gray sand body; s5, forming prediction element combination type codes; s6, determining the type of the favorable area; and S7, determining the accurate position of the favorable area, and realizing prospecting prediction. The method is an efficient and reliable prospecting technical method for the sandstone-type uranium ore, is a high summary of latest prospecting results of the sandstone-type uranium ore by analyzing deep fault subsidence and guiding shallow prospecting, and is high in directivity for prospecting work; different from traditional perceptual prospecting cognition, geological elements are coded and combined, natural element digitization is achieved, mathematical calculation is introduced into prospecting work, and the method is more scientific, more reliable and high in operability; as a specific operable prospecting method, the prospecting efficiency and the prospecting rate can be effectively improved.
Owner:核工业二四三大队

A method for screening mineralization feature sets of sandstone-type uranium deposits based on maximum information coefficient

PendingCN122087382AMake up for the shortcomings of not being able to handle non-linear data welleasy to handleMachine learningMetallogenyUranium mineralization
This invention belongs to the interdisciplinary field of uranium geological exploration information technology and big data processing technology. Specifically, it relates to a method for screening mineralization feature sets of sandstone-type uranium deposits based on the maximum information coefficient (MIC). The method includes: Step S1: Extraction and organization of mineralization feature data; Step S2: Data preprocessing; Step S3: MIC calculation and preliminary ranking of feature values; Step S4: Screening feature thresholds based on inflection point analysis to determine key mineralization features. This method can identify key ore-controlling factors with high correlation to sandstone-type uranium mineralization from geoscientific big data, significantly improving the accuracy, efficiency, and interpretability of subsequent machine learning mineralization prediction models, and providing reliable data support for the selection of uranium exploration target areas.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

A fine ore-forming model of granite type uranium deposit

The application discloses a kind of granite type uranium ore fine ore-forming model, it is related to simulation experiment relevant field, including model table, the model table top frame inside is equipped with model display component, the model table transverse plate top bolt installation has operating panel, through the special PCB and current relay control fine magnetic block energization magnetism and promote cast iron plate sliding in magnetic separation cylinder inside, to make it drive rubber column and modularization board and fine display cloth carry out displacement, to make fine display cloth in the ore-forming appearance change deformation simulation action by the modularization of setting modularization board;By projection piece, the ore-forming image is projected to the surface of electric control glass, the projection light of projection piece is focused at color temperature sensor by condenser and light uniform cover at this time, and the light shadow is detected using color temperature sensor, and then by controlling electric control glass energization and forming transparent state, the projection image of projection piece is projected on fine display cloth through electric control glass and realizes the simulation imaging of ore-forming soil layer.
Owner:NUCLEAR IND 230 RES INST

In-situ leaching mining method for high-carbonate sandstone uranium deposit

The invention relates to the technical field of in-situ leaching uranium mining, and provides an in-situ leaching mining method of a high-carbonate sandstone uranium ore deposit, which comprises the following steps of: injecting high-pressure carbon dioxide into an ore bed through a liquid injection drill hole, and migrating a calcium-containing solution to the earth surface through pumping and injection circulation; mixing the calcium-containing solution migrated to the earth surface with sulfuric acid, reacting to generate calcium sulfate precipitate, and carrying out solid-liquid separation; the separated liquid is reinjected into the ore bed; pre-removing the calcium ions until the concentration of the calcium ions in the calcium-containing solution is reduced to a preset value; sulfuric acid with the first concentration is injected into the ore bed for acidification, the sulfuric acid with the first concentration reacts with calcite in the surrounding rock of the ore bed, and a water-resisting layer is built around the ore body; after construction of the water-resisting layer is completed, sulfuric acid with the second concentration is injected into the ore bed to serve as a leaching agent, and uranium is leached and recycled. The technical problems of high acid consumption, easy blockage and water-resisting layer loss in the high-carbonate sandstone uranium ore are solved, and successful development of the high-carbonate sandstone uranium ore deposit is realized.
Owner:BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY

Method for indicating granite type uranium mineralization by using quartz element and cathode luminescence characteristics

The invention belongs to the field of geological mineral exploration, and particularly relates to a method for indicating granite type uranium mineralization by using quartz elements and cathode luminescence characteristics, which comprises the following steps: step 1, collecting and selecting samples; step 2, sample preparation and chemical analysis; step 3, carrying out cathode luminescence CL analysis; and step 4, data processing and model construction. According to the method provided by the invention, through systematic analysis on the quartz sample, especially research on the trace element content and cathode luminescence structure characteristics of the quartz sample, geochemical indexes capable of effectively identifying and predicting the uranium mineralization area are established, and the efficiency and accuracy of granite type uranium deposit exploration can be effectively improved.
Owner:BEIJING RES INST OF URANIUM GEOLOGY