41 results about "Metamorphic rock" patented technology

The invention discloses a metamorphic rock P-T-t trajectory reconstruction method and system based on multi-source data fusion, and relates to the field of metamorphic rock P-T-t trajectory reconstruction.The method comprises the steps that electronic probe microcell map data and internal standard sample data of a metamorphic rock sample are obtained, and multi-stage data correction is conducted; carrying out mineral phase identification and chemical component quantitative interpretation to generate a mineral classification map, an element concentration distribution map and a total rock main component data set; thermodynamic phase equilibrium simulation is carried out, a P-T view profile map is generated, and a P-T track is extracted; performing microcell in-situ chronological analysis on selected minerals in the mineral classification map to obtain chronological data; and carrying out space-time coupling on the P-T trajectory and chronology data, constructing a P-T-t three-dimensional trajectory model of the metamorphic rock, and outputting a visual reconstruction report. According to the method, automation and standardization of the whole process of metamorphic rock P-T-t trajectory from data acquisition and processing to model reconstruction are realized, and the precision, efficiency and reliability of trajectory analysis are improved.

A method for evaluating geological hydrogen source rock in a region is provided. The method includes: collecting magnetic susceptibility data from a plurality of subsurface locations in the region; receiving geophysical survey data of the region, wherein the geophysical survey data comprises geophysical data collected from above ground; tying the magnetic susceptibility data of the plurality of subsurface locations to the geophysical survey data; generating a geologic map of igneous rock, metamorphic rock, or mafic mineral- or iron-rich sedimentary rock within the region based on the magnetic susceptibility data using a model; and determining, based on the geologic map, a target zone of the geological hydrogen source rock with a potential for hydrogen production or with the potential for hydrogen accumulation.

The invention belongs to the technical field of building materials. The invention provides a stone powder-based stone-like material. The stone powder-based stone-like material comprises a stone powder-based stone-like green body and a stone curing layer arranged on the surface of the green body, the stone powder-based stone-like green body comprises a core stone powder base material, functional mineral powder, a bonding modification system, a water reducing agent, water and a decorative aggregate; wherein the components in parts by mass are as follows: 50-70 parts of the core stone powder base material, 8-12 parts of the functional mineral powder, 12-15 parts of the bonding modification system and 0-1 part of the decorative aggregate; the water reducing agent accounts for 1-2% of the total mass of the core stone powder base material, the functional mineral powder and the bonding modification system, and the water accounts for 8-12% of the total mass of the core stone powder base material, the functional mineral powder and the bonding modification system. The stone powder-based stone-like material is based on metamorphic rock mineral raw materials and can simulate the characteristics of natural rock materials, so that the prepared material is remarkably superior to an existing stone-like material in the aspects of texture level, structural compactness and overall stone-like effect; and moreover, the solid waste utilization rate is high, and the process adaptability is high.

The invention discloses a multi-information constraint complex lithology interpretation method and device. The method comprises the following steps: establishing a symbiotic relationship among various lithologies to be explained according to coring data, logging data and logging data in a research area based on the orderliness of vertical superposition and spatial distribution of sedimentary strata; on the basis of the current symbiotic relationship, the logging data is corrected, an intersection chart between the lithology and the sensitive logging curve is drawn, and the intersection chart is used for being combined with the symbiotic relationship to achieve lithology interpretation in the research area. According to the method, multiple information is integrated, multiple to-be-explained symbiotic relationships among lithology are used as constraints, and logging data are reasonably corrected, so that the prediction precision of the rendezvous chart between the lithology and the sensitive logging curve is higher; the method can be used for lithology interpretation of complex lithology, such as sedimentary rock, intrusive rock and intrusive rock overlying and underlying metamorphic rock co-development areas.

This invention discloses a method for accurate lithology identification and correction of logging data based on artificial neural networks, comprising the following steps: collecting logging data, laboratory test data, and regional geological background data of the target area from buried hills; preprocessing the collected logging data and laboratory test data to establish a correspondence between the logging data and laboratory test data, forming a dataset; constructing an artificial neural network model; training and optimizing the constructed artificial neural network model based on the dataset; inputting the logging data of the target well to be corrected into the trained artificial neural network model, outputting corrected mineral element content data; and, based on the corrected mineral element content data and combined with the regional geological background, achieving lithology classification and accurate identification of the target well. This invention uses the above method to convert logging data into laboratory-precision data, improving the accuracy of lithology identification under complex geological conditions such as Archean metamorphic buried hills.

The application discloses a kind of paragenetic metamorphic rock weathering crust weathering alteration index calculation method, comprising: the mass percentage of element of mud logging cuttings is determined;The mass percentage of element is normalized;The mass percentage of element after normalization is converted into oxide molar ratio;According to the change trend of element oxide molar ratio, the relative loss and relative enrichment trend of various elements in paragenetic metamorphic rock weathering crust is judged;According to the trend of element relative loss or enrichment, the easily soluble element and the element easy to remain are determined, and the new paragenetic metamorphic rock weathering crust weathering alteration index calculation formula is fitted;The molar ratio of element oxide is brought into the new calculation formula established, according to the size of the weathering alteration index value calculated, paragenetic metamorphic rock weathering crust is identified, and paragenetic metamorphic rock weathering crust structure is divided.The application provides important technical support for oil and gas basin paragenetic metamorphic rock weathering crust reservoir research.

The application discloses a kind of electrical parameter calculation methods of para-metamorphic rock weathering crust, comprising: reading the conventional logging curve data of the depth corresponding to para-metamorphic rock weathering alteration index;Logging curve data and para-metamorphic rock weathering alteration index data are fitted into linear relationship chart;According to the correlation of the linear relationship chart of fitting, select the logging curve with high sensitivity of para-metamorphic rock weathering crust identification;The logging curve data with high sensitivity of para-metamorphic rock weathering crust identification is normalized;Fitting para-metamorphic rock weathering crust electrical parameter calculation formula;The logging curve data after normalization is brought into formula to calculate and identify para-metamorphic rock weathering crust.The present application is based on the analysis of a large amount of logging curve data, establishes a new electrical parameter calculation model of para-metamorphic rock weathering crust, and proposes a new method for identifying para-metamorphic rock weathering crust.

The present application relates to the technical field of geological exploration, and specifically discloses a kind of open coal mine burnt metamorphic rock blast hole hole protection slurry and its preparation method and application, to drilling wall protection bentonite B as bentonite raw material is prepared into the slurry with the concentration of 120-140kg / m 3 The stirring speed is 900rpm-1100rpm, and the stirring time is 14-15min, then the fibrous material is added in the slurry, the amount is 1-3kg / m 3 , obtain hole protection slurry. The hole protection slurry prepared by the present application has good hole protection effect on open coal mine burnt metamorphic rock blast hole.

A method for evaluating geological hydrogen source rock in a region is provided. The method includes: collecting magnetic susceptibility data from a plurality of subsurface locations in the region; receiving geophysical survey data of the region, wherein the geophysical survey data comprises geophysical data collected from above ground; tying the magnetic susceptibility data of the plurality of subsurface locations to the geophysical survey data; generating a geologic map of igneous rock, metamorphic rock, or mafic mineral-or iron-rich sedimentary rock within the region based on the magnetic susceptibility data using a model; and determining, based on the geologic map, a target zone of the geological hydrogen source rock with a potential for hydrogen production or with the potential for hydrogen accumulation.

A toe plate structure on a deformed rock mass, comprising a toe plate and a face plate, the toe plate comprising a toe plate upper disc and a toe plate lower disc which are mutually butted, and an anti-skid structure is arranged on the butting surface of the toe plate upper disc and the toe plate lower disc; the face plate is connected with the toe plate upper disc; and a water stop structure is arranged in a triangular area formed between the end surface of the toe plate upper disc away from the face plate and the top surface of the toe plate lower disc. Since the toe plate adopts the structure of the toe plate upper disc and the toe plate lower disc which are mutually butted, a split structure is formed, and an anti-skid structure is arranged on the butting surface, when the toe plate upper disc and the toe plate lower disc are deformed uncoordinatedly, if the force borne exceeds the friction between the toe plate upper disc and the toe plate lower disc, the toe plate upper disc and the toe plate lower disc will be dislocated to release the force generated by the uncoordinated deformation and reach a new balance state; if the force generated by the deformation of the toe plate lower disc is less than the friction between the toe plate upper disc and the toe plate lower disc, the toe plate upper disc and the toe plate lower disc will be relatively static, and the toe plate upper disc will continue to keep the supporting effect on the face plate.

The application discloses a metamorphic rock surface porosity analysis and evaluation method and device, equipment and medium, relates to the technical field of oil logging reservoir evaluation, and comprises the following steps: pretreating a rock sample, scanning the pretreated rock sample, and obtaining a rock sample image; identifying and detecting the mineral and background color edge in the rock sample image and segmenting the rock gap image to obtain rock particles and determine the total particle area; adopting a threshold segmentation method to perform threshold truncation on the rock particles, calculate the pore area in the rock particles, adopt a maximum likelihood method to identify the cracks in the rock particles, calculate the crack area in the rock particles, and calculate the pore and crack areas by using the pore area and the crack area; calculating the surface porosity based on the total particle area and the pore and crack areas, analyzing and evaluating the imaging logging crack interpretation result and the surface porosity, and obtaining an analysis and evaluation result. The application can improve the accuracy and efficiency of metamorphic rock surface porosity analysis and evaluation and reduce the complexity of metamorphic rock surface porosity analysis and evaluation.

The invention provides a metamorphic rock boron enrichment mechanism comprehensive investigation system based on a micro-area in-situ technology. The system comprises a sample target preparation and characterization module, a combined micro-area in-situ analysis module, a data integration and processing module and a space-time correlation and evolution sequence reconstruction module which are connected in sequence. The method comprises the following steps: establishing a uniform space coordinate system, and sequentially calling an electronic probe, a laser ablation mass spectrum, an ion probe and other micro-area analysis instruments to carry out collaborative analysis on the same sample target to obtain data of mineral components, trace elements, boron isotopes and zircon U-Pb-Hf isotopes. The system carries out automatic fusion and mineral generation intelligent identification on multi-source data, couples a geochemical model and a machine learning algorithm, constructs a boron element geochemical behavior evolution sequence model taking absolute time as an axis, and realizes quantitative description of the whole process of source, migration and enrichment of boron in an open system. According to the method, the systematicness and the accuracy of the study on the boron enrichment mechanism of the metamorphic rock are remarkably improved.

The invention discloses a reservoir high-quality lithology analysis method and system for metamorphic rock type bedrock, and relates to the technical field of oil and gas geological reservoir analysis, and the method is characterized in that a rock slice image of the metamorphic rock type bedrock collected under a single polarizing microscope is acquired; based on the rock slice image, identifying and classifying different lithologic reservoirs, and extracting secondary reservoir space features in each lithologic reservoir; based on the reservoir space characteristics, determining the total surface porosity and the effective reservoir space proportion of each lithologic reservoir; and comparing and judging the total surface porosity and the effective reservoir space ratio of each lithologic reservoir through the lithologic identification model to obtain an identification result of the high-quality lithologic characters of the reservoirs. According to the method, whether the lithology of various metamorphic bed rock reservoirs is high or not can be effectively and accurately judged, the reservoir performance of the metamorphic bed rock reservoirs with different lithology is converted into visual objective data, and the production and operation cost is effectively reduced.

This invention belongs to the field of geological and mineral survey technology, specifically involving a comprehensive survey system for the rubidium enrichment mechanism of metamorphic rocks based on micro-area in-situ technology. It includes a module for precise characterization of rubidium occurrence state through in-situ petrography, a module for multi-dimensional isotopic mass spectrometry combined with analysis, a module for quantitative inversion of rubidium migration and enrichment behavior, and a module for spatiotemporal coupling and mineralization prediction of multi-stage metamorphic events. These four modules adopt a dual-closed-loop coupling architecture. This invention achieves a significant improvement in spatial characterization accuracy and comprehensiveness, completely overcoming the limitations of existing two-dimensional characterization techniques. By establishing an X-Y-Z three-dimensional coordinate system through a three-dimensional spatial coordinate calibration unit, it achieves full-dimensional characterization of rubidium in the plane and depth directions of metamorphic rock samples. Combined with hierarchical chemical extraction and time-of-flight secondary ion mass spectrometry nanoscale surface scanning technology, it achieves for the first time precise decoupling of the three occurrence states of rubidium: lattice state, adsorption state, and fluid inclusion state, breaking through the technical bottleneck of traditional methods being unable to distinguish the occurrence states of rubidium.

The invention provides an optical fiber sensing network laying method and device capable of identifying hard metamorphic rock tunnel surrounding rock multi-dimensional deformation, and the method comprises the steps: laying sensing optical fibers in a primary support in a tunnel based on the laying device, collecting optical fiber signals based on the sensing optical fibers, processing the optical fiber signals based on an optical fiber three-dimensional stress field calculation model, and calculating the multi-dimensional deformation of the surrounding rock in the tunnel. And the health condition of the tunnel primary support structure is diagnosed by resolving the strain change generated by the optical fiber signal. According to the method, one-dimensional optical fiber monitoring line strain data is upgraded into two-dimensional to three-dimensional deformation field measurement, meanwhile, accurate judgment can be given to a part with abnormal local stress of the hard metamorphic rock tunnel, and whether deformation is uniform convergence, local extrusion or shear failure can be distinguished; through the special optical fiber wave-shaped mounting base and bionic antenna type optical fiber arrangement, the monitoring and recognition capability of local deformation in the hard metamorphic rock tunnel construction process is improved, and the hard metamorphic rock tunnel surrounding rock multi-dimensional deformation can be accurately and effectively recognized and monitored.

The invention discloses a treatment mechanism for dust suppression in tunnel metamorphic rock fault breaking construction, and relates to the technical field of atmosphere dust suppression treatment. The dust suppression device comprises a dust suppression adjusting mechanism, a regulation and control supporting assembly is fixedly arranged below the dust suppression adjusting mechanism, the regulation and control supporting assembly is rotationally connected with the dust suppression adjusting mechanism, and two opening and closing assemblies are symmetrically arranged on one side face of the dust suppression adjusting mechanism. Atmospheric dust suppression is achieved through spraying of the dust suppression adjusting mechanism, meanwhile, the position of the dust suppression nozzle can be adjusted, then the spraying mode is adjusted, the supporting assembly is adjusted and controlled to drive the dust suppression adjusting mechanism to swing up and down and rotate, and then the radiation range of spraying is adjusted; the opening and closing assembly adjusts the spraying radiation range of the dust suppression adjusting mechanism in the corresponding spraying mode, position switching of the dust suppression spray heads between linear arrangement and annular arrangement is achieved, different dust suppression operation requirements are conveniently met, the size of a spraying outlet is adjusted, and pre-humidifying treatment is conveniently carried out in a specified range.

The application discloses a metamorphic rock buried hill reservoir longitudinal zoning logging identification method, which comprises the following steps: collecting element logging, imaging logging and conventional logging data of sample wells in different structural positions of a research area, and preparing a single-well comprehensive columnar graph; dividing the longitudinal structural units of the metamorphic rock reservoir of the sample wells by using the fracture development characteristics and the longitudinal variation characteristics of the chemical alteration index; optimizing the logging curves which have obvious distinguishing effects on each longitudinal structural unit, and constructing a fracture dissolution index calculation formula which reflects the fracture dissolution degree; scaling the fracture dissolution index limit range of each longitudinal structural unit of the sample wells, and establishing a fracture dissolution index zoning model of the metamorphic rock buried hill reservoir; and calculating the fracture dissolution index curve of a to-be-zoned well section by using the fracture dissolution index calculation formula, and dividing the longitudinal structural units of the buried hill according to the fracture dissolution index zoning model of the metamorphic rock buried hill reservoir. The application can accurately and quickly identify the longitudinal structural units of the metamorphic rock buried hill reservoir, has the advantages of simple operation, high precision and less influence of human factors.

The invention discloses a metamorphic rock buried hill while-drilling rapid layer clamping method and application thereof, and the method comprises the steps: analyzing a structure combination mode of an overlying paleo-system reservoir and a paleo-buried hill reservoir, and building a typical reservoir structure combination mode; carrying out screening and data dimension reduction processing on sensitive logging elements based on an LDA algorithm, and constructing a sample data set through core calibration logging; constructing a complex metamorphic rock buried hill lithology identification model based on an SSOM algorithm, and selecting a test sample to carry out model generalization performance verification; based on a sensitive logging element screening result and a prediction result of the complex metamorphic rock buried hill lithology identification model, constructing an ancient buried hill entering layer clamping plate; and guiding geophysical velocity correction and buried hill entering depth prediction of the development well based on the ancient buried hill entering clamping layer chart. According to the invention, rapid identification of complex lithology of buried mountains and overlying strata is effectively realized, and geophysical velocity correction and depth prediction of the top surface of the buried mountains are guided.

The invention provides a prediction method based on earthquake and logging combined inversion metamorphic rock lithology plane distribution, and relates to the technical field of petroleum and natural gas exploration and development, the method comprises the following steps: S1, collecting and standardizing logging data, and preprocessing seismic data; s2, calibrating a lithology classification threshold value through a GR-DEN cross plot and a GR-AI linear model; s3, constructing a low-frequency wave impedance model to supplement earthquake low-frequency information; s4, inverting a high-resolution wave resistance body by using a simulated annealing algorithm, and converting the high-resolution wave resistance body into a GR attribute body; and S5, generating a three-dimensional lithology distribution model based on the lithology classification threshold, and predicting the coincidence rate through blind well verification. According to the method, the vertical high resolution of the logging data and the transverse wide area coverage characteristic of the seismic data are fused, and the simulated annealing algorithm and rock physical modeling are combined, so that the technical problems of fuzzy lithology identification and high transverse prediction multiplicity of solutions of a traditional method in a complex metamorphic rock reservoir are solved.

The embodiment of the invention discloses a metamorphic rock mineral content calculation method and device. The method comprises the following steps: acquiring historical element logging data and mineral content actual measurement data; performing deep matching on the historical element logging data and the mineral content actual measurement data, and constructing a training data set and a verification data set based on a matching result; performing model training on the machine learning model according to the training data set to obtain an initial mineral content prediction model; verifying the initial mineral content prediction model according to the verification data set, and determining a target mineral content prediction model according to a verification result; and obtaining element logging data of a to-be-predicted well, inputting the element logging data of the to-be-predicted well into the target mineral content prediction model for mineral content prediction, and obtaining a mineral content prediction value corresponding to the to-be-predicted well. Therefore, high-precision prediction of the mineral content is achieved, and the problems that a traditional inversion method based on empirical parameters and a volume model is poor in stability, poor in cross-well adaptability and the like are solved.

The invention discloses a marine facies mixed rock complex lithofacies identification method and related equipment, and the method comprises the steps: preferably selecting lithofacies sensitive conventional logging and natural gamma-ray spectrum logging information, and carrying out the standardization processing; on the basis of conventional logging and natural gamma-ray spectrum logging information, identifying complex class-I lithofacies and class-II lithofacies of the marine facies mixed rock; identifying complex III-class lithofacies of marine facies mixed rock based on micro-resistivity imaging logging information; based on conventional logging and natural gamma-ray spectrum logging information, a marine facies mixed rock complex class-I lithofacies and class-II lithofacies recognition chart is established; according to the method, a complex class-III lithofacies plate of the marine facies mixed rock is established on the basis of micro-resistivity imaging logging information, finally the marine facies mixed rock is identified according to the plate and the lithofacies, and compared with an existing method depending on drilling coring and rock debris analysis and assay, the method provided by the invention is easy to operate, low in cost, high in efficiency, high in coverage rate and high in resolution, and can be widely applied to the field of marine facies mixed rock identification. The method greatly solves the problem of high-precision recognition of the complex lithofacies of the basin marine facies mixed rock, supports the research, exploration and development of deep and ultra-deep oil and gas geology of the basin, and has important theoretical significance and good practical application effect.

The invention discloses a pre-drilling productivity prediction method for metamorphic rock buried hill naked eye well completion, and the method comprises the steps: calculating the predicted productivity of a weathering crust of a pre-drilled well, and obtaining the predicted productivity of the weathering crust of the pre-drilled well according to the development magnitude of the weathering crust of the pre-drilled well and a weathering crust productivity template; calculating the predicted capacity of the pre-drilling well crack section, and obtaining the predicted capacity of the pre-drilling well crack section based on the unit crack development comprehensive index capacity of the development area, the crack development comprehensive index of the pre-drilling well and the dominant crack development index of the pre-drilling well; and calculating the buried hill productivity of the pre-drilling well, and obtaining the buried hill productivity of the pre-drilling well based on the predicted productivity of the drilling well weathering crust and the predicted productivity of the pre-drilling well crack section. According to the method, the problems that the productivity of the production well is difficult to split longitudinally and effectively due to the fact that the naked eye section contains different reservoir types and commingled production, and productivity prediction based on a geological model is difficult to establish and carry out are solved, rapid productivity prediction under metamorphic rock buried hill naked eye completion is effectively achieved, and efficient development of buried hill gas reservoirs of the thousand billions of Bohai Sea is guaranteed.

The invention discloses a metamorphic rock area crystalline graphite ore prospecting method and system, and the method comprises the following steps: S1, constructing a structure-mineral-mineralization dynamic adaptation model: dividing the structure type of a target area, and building the corresponding relation of the structure type-ore body occurrence position; according to the method, the graphite flake diameter and the graphitization degree are analyzed, and a mineral characteristic-mineralization stage-resource potential correlation model is established. According to the prospecting method and system for the crystalline graphite ore in the metamorphic rock area, geoelectric data can be collected in all directions and a three-dimensional ore body prediction model can be generated through the arranged prospecting system in cooperation with constraint of a structure-mineral-mineralization dynamic adaptation model, the extension direction, the scale and the occurrence state of a deep ore body are clearly described, and the prospecting efficiency is improved. The detection limitation of a traditional two-dimensional technology is effectively broken through, the hidden ore body missed judgment risk is greatly reduced, and accurate target area guidance is provided for subsequent drilling.

The application discloses a rift valley identification method and device, electronic equipment and storage medium. The diffraction wave imaging is performed on a to-be-identified stratum to obtain a diffraction wave imaging result; whether a vertical section exists in the diffraction wave imaging result is judged; if it is determined that at least one vertical section exists in the diffraction wave imaging result, the position of the rift valley is determined according to the position of the vertical section. The rift valley spatial distribution position possibly existing in the deep metamorphic rock basement is determined by comparing and analyzing the diffraction wave imaging result and the reflection wave imaging result. The problem that the present technology cannot distinguish the rift valley and the multiple wave "false image" in the layered reflection of the deep metamorphic rock basement stratum is overcome, and the accuracy of the rift valley judgment in the deep metamorphic rock basement stratum is improved.

This invention relates to a method for predicting the height of a fault-sealed gas column using cross-sectional stress. Based on the principle that faults, regardless of their lithology, size, or burial depth, are always subject to pressure from the overlying strata and regional stress fields—meaning cross-sectional stress is universally present—this invention establishes a relationship between the magnitude of stress on the cross-section and the height of the hydrocarbon column it can seal. This allows for the prediction of the height of the fault-sealed oil and gas column in all lithological regions, particularly in igneous, metamorphic, and carbonate rock regions. This invention has broad applicability and can solve the problem of determining the height of a fault-sealed hydrocarbon column in special lithological regions.

The invention discloses a metamorphic rock brittleness index determination method and device, equipment and a medium. The method comprises the following steps: determining rock types contained in a rock sample to be measured by utilizing a preset logging curve, and obtaining lithologic mineral components and volume fractions corresponding to each rock type; establishing a rock physical model by using the lithologic mineral composition and the volume fraction; the Young modulus and the cedar ratio of the rock sample to be measured are determined through the rock physical model, and then the brittleness index of the target rock stratum is determined through the Young modulus and the cedar ratio. Through the technical scheme provided by the invention, the rock physical model based on the lithologic mineral cost and the volume fraction can be directly established, and the relationship among the logging time difference curve, the density curve and the rock brittleness is established, so that the brittleness index of the metamorphic rock buried hill is obtained, and the detection accuracy of the metamorphic rock buried hill is improved. The method has the advantages that the required data is less, the data admission cost is saved, and the calculation accuracy is higher.

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

The application discloses a rock-based solidification method of radioactive waste, comprising the following steps: providing a powder of natural rock, the natural rock being a magmatic rock or a metamorphic rock; mixing the rock powder, an auxiliary agent and radioactive waste containing cesium and / or strontium to obtain a mixture, the auxiliary agent being selected from one or more of the group consisting of a dissolving agent and a mineralizing agent; and performing sintering treatment on the mixture at a temperature of 1000-1300 DEG C for 1-3 hours to obtain a solidification body. The method of the application uses widely available natural rock as a base material, and through the introduction of an auxiliary agent, the sintering process can be optimized or the structure of the solidification body can be improved, for example, the addition of a dissolving agent can reduce the sintering temperature to save energy, and the addition of a mineralizing agent can induce the generation of specific ceramic phases to improve the stability of the solidification body, and the effective fixation of radioactive waste containing cesium and / or strontium can be realized through a simple sintering process.

This invention provides a comprehensive investigation system for the boron enrichment mechanism of metamorphic rocks based on micro-area in-situ technology. The system comprises a sample target preparation and characterization module, a combined micro-area in-situ analysis module, a data integration and processing module, and a spatiotemporal correlation and evolutionary sequence reconstruction module, connected sequentially. By establishing a unified spatial coordinate system, multiple micro-area analysis instruments, such as electron probe microanalysis, laser ablation mass spectrometry, and ion probe microanalysis, are sequentially invoked to perform collaborative analysis on the same sample target, obtaining data on mineral composition, trace elements, boron isotopes, and zircon U-Pb-Hf isotopes. The system automatically fuses multi-source data and intelligently identifies mineral generations, and couples geochemical models with machine learning algorithms to construct an evolutionary sequence model of boron geochemical behavior with absolute time as the axis, achieving a quantitative characterization of the entire process of boron source, migration, and enrichment in an open system. This invention significantly improves the systematicness and accuracy of research on boron enrichment mechanisms in metamorphic rocks.

This invention discloses a method for monitoring overpressure in metamorphic buried hill reservoirs based on CCS-UCS, comprising: preprocessing drilling data; constructing a formation pressure monitoring model for drilling; constructing a real-time monitoring model for the triaxial compressive strength of the bottom hole rock; determining the segmented structure using CCS values; constructing linear regression analysis based on CCS segmented structure data and marking abnormally high-pressure segments; constructing a uniaxial compressive strength calculation model for the bottom hole rock, and obtaining real-time monitoring models for the normal pressure segment, abnormally high-pressure segment, and a series of uniaxial compressive strengths across the entire depth; combining the real-time uniaxial compressive strength monitoring model with the formation pressure monitoring model based on the minimum principal stress state of the bottom hole rock, and monitoring the formation pressure values ​​of the marked abnormally high-pressure segments in real time, thereby achieving formation pressure monitoring during drilling. This invention does not rely on the formation pressure formation mechanism or compaction trend line and is applicable to overpressure monitoring in buried hill reservoirs.