73 results about "Bed" patented technology

The invention relates to the technical field of data analysis, in particular to a multi-source data-based concealed vanadium titano-magnetite bed target area delineation method and system, which comprehensively considers various factors possibly influencing drilling, such as geological condition complexity and drill bit wear risk, and has relatively low potential risks in various aspects of trajectory selection. The probability of unexpected conditions such as drill bit damage and borehole wall collapse in the drilling process can be effectively reduced, smooth drilling work is guaranteed, the drilling effect abnormity prediction result and the difficulty abnormity reflect the advantages and disadvantages of the drilling track from different angles, and the drilling efficiency is improved. The drilling effect anomaly prediction considers the influence of various abnormal conditions possibly occurring in the drilling process on the final drilling result, the difficulty anomaly focuses on the drilling difficulty of the trajectory, the two are fused and analyzed, the feasibility and the risk degree of each trajectory are evaluated more comprehensively and accurately, and the prediction accuracy is improved. And the influence degree of the track drilling process on ore deposit target area detection is reduced.

The invention discloses a horizontal well while-drilling method and system suitable for ultra-deep oil and gas reservoir development, and belongs to the technical field of oil exploration and development. (2) accurate target entering is guaranteed through a marker bed control method and a stable inclination top detection method; and 3) predicting the position of the drill bit after target entering to guide the adjustment of the horizontal well. The horizontal well track is adjusted in real time by measuring stratigraphic layering and well deviation data during drilling, the drilling rate of a reservoir can be effectively increased, and an effective technical means can be provided for efficient development of deep oil and gas reservoirs.

A method for predicting CH4 production and CO2 sequestration in a CO2-ECBM process belongs to the field of natural hydrogen resource exploration, and is technically characterized by comprising the following steps: constructing a multiphase and multicomponent coupling model for describing the migration process of water, methane and carbon dioxide of a stratum coal bed gas reservoir; the method comprises the following steps: constructing a geologic model of a stratum coalbed methane reservoir, performing grid division on the geologic model to obtain a plurality of grid units reflecting different spatial distribution positions of the coalbed methane reservoir, and setting initial conditions and boundary conditions of the geologic model; and according to the multiphase and multicomponent coupling model, solving spatio-temporal evolution characteristics of pressure and concentration of water, methane and carbon dioxide of each grid unit of the geologic model to obtain distribution in time and space. According to the method, the influence of the underground water in the coal bed gas on the migration behavior of methane and carbon dioxide is fully considered, the limitation of prediction result deviation caused by neglecting the effect of the underground water in the existing research is overcome, and the accurate prediction of the methane yield and the carbon sequestration amount in the CO2-ECBM process is realized.

The invention belongs to the technical field of intelligent monitoring and safety early warning, and provides an intelligent separation grouting opportunity decision system and method.The system comprises a multi-source monitoring data synchronous acquisition and preprocessing module, an InSAR deformation field spatio-temporal feature extraction module and a micro-seismic event cluster multi-parameter analysis module; according to the method, an InSAR macroscopic deformation field and a microseismic microcosmic fracture sequence are cooperatively utilized by the modules, the real-time evolution stage of mining separation is accurately diagnosed through multi-parameter feature extraction and machine learning intelligent judgment, and a quantitative and scientific optimal grouting opportunity decision is provided accordingly. And effective technical support is provided for prevention and control of mine disasters.

The invention discloses an algorithm-based detritus dolomite sedimentary microfacies identification method, and relates to the technical field of rock sedimentary microfacies identification, and the method comprises the following steps: collecting a detritus dolomite sample, and carrying out analysis to obtain the structure and characteristics of the detritus dolomite sample; extracting features in the structure and the characteristics; selecting a machine learning algorithm; using known detritus dolomite sedimentary microfacies data as a training set, and training a machine learning algorithm to obtain a microfacies recognition model; and then the microfacies identification model is applied to actual detritus dolomite sedimentary microfacies identification, the method can obviously reduce the labor force required by detritus dolomite sedimentary microfacies identification, so that the laboratory analysis is time-saving and labor-saving, and when the microfacies identification model is used for identifying detritus dolomite, the identification result is more objective, effective, accurate and reliable; and the microscopic characteristics or microstructure of the rock stratum can also be captured.

The utility model relates to the technical field of similar simulation experiment equipment, and discloses an experiment device for simulating mine earthquakes induced by movement of a water-containing weakly cemented rock stratum, which comprises a frame body, two movable plate bodies vertically arranged on the frame body and a pressing plate horizontally arranged on the frame body, the two movable plate bodies are in sliding fit with the frame body in the horizontal direction, and the pressing plate is arranged on the frame body. The two movable plate bodies, the pressing plate and a bottom plate of the frame body form a sample chamber for accommodating a rock sample, and the two groups of transverse pressure applying mechanisms are symmetrically arranged on the outer sides of the two movable plate bodies; each group of transverse pressure applying mechanism comprises a horizontal displacement assembly and a pressure applying end part connected to the horizontal displacement assembly, and the horizontal displacement assembly drives the pressure applying end part to move in the direction close to the movable plate body so as to apply pressure in the horizontal direction to the movable plate body. The dynamic pressure change condition of the weakly cemented rock stratum can be truly simulated, and the method has important significance for exploring the law and solving problems.

The invention belongs to the technical field of anti-seepage curtains of red-bed landfills, and discloses an optimal design method for a vertical anti-seepage curtain of an irregular landfill in a red-bed region, which adopts a drilling, geological radar and X-ray diffraction combined technology in the exploration and data acquisition stage to clearly distinguish hydrophilic expansive mudstone and high-permeability sandstone, and the optimal design method for the vertical anti-seepage curtain of the irregular landfill in the red-bed region is provided for the vertical anti-seepage curtain of the irregular landfill in the red-bed region. A space coupling model of the pile body and the red rock stratum is established by means of three-dimensional laser scanning, and the lithologic boundary of the dual seepage system is defined; in the model construction stage, parameter distribution is analyzed through a Markov random field model, regular updating is conducted in combination with a Kalman filtering algorithm, and dynamic changes such as sandstone fracture expansion caused by pile settlement can be adapted; a modified bentonite and nanoscale montmorillonite composite material is used in a sandstone area, construction is conducted through a high-pressure jet grouting technology, the permeability coefficient is set to be that the insertion depth extends to the complete bed rock by 2-2.5 m, and the problem of local leakage caused by the fact that the seepage-proofing design is not matched with the actual conditions of a red layer is solved.

The application discloses a bridge scour simulation and boundary setting method for SPH water-sand two-phase flow, and comprises the following steps: model construction, including setting a bed sand layer area range and defining an inlet and outlet boundary area range; particle construction, including setting fluid particles and bed sand particles of a flow field area based on a multiphase flow theory, setting soil yield strength based on a HBP model and introducing a DP yield criterion, initializing inlet and outlet boundary particle parameters, setting particle type identification, and setting particle position identification; N-S control equation solving, obtaining corresponding flow force parameter results; entering a sediment solving module, including sediment particle conversion and viscosity updating calculation; entering an inlet and outlet boundary updating module, including inlet and outlet particle position retrieval, particle type conversion, and particle supplement and deletion; completing a calculation cycle and entering the next cycle; through secondary development based on the SPH multiphase flow theory, the application can realize numerical simulation of foundation local scour by applying the inlet and outlet boundaries to the multiphase flow model and introducing various structure and state models.

The invention belongs to the technical field of geological research, and provides a helium source rock prediction method and device, a storage medium and equipment, and the method comprises the steps: taking a bed rock top surface seismic horizon explained and tracked by a target area as a bed rock top surface, and taking a preset time window below the bed rock top surface as a target object; making a bedrock seismic waveform classification attribute graph of a preset time window; according to the bedrock seismic waveform classification attribute graph and the seismic reflection characteristics of the various different types of rocks of the bedrock, determining the corresponding relation between the different types of rocks of the bedrock and different seismic waveform distribution areas displayed by the bedrock seismic waveform classification attribute graph; and predicting helium source rocks of different types based on the corresponding relationship and different seismic waveform distribution areas displayed by the bedrock seismic waveform classification attribute graph to obtain a prediction result. Through the prediction method, on the premise of not depending on gravity and magnetic data, the prediction accuracy of the helium source rock can be greatly improved.

The invention discloses a method and a system for inverting underground equivalent circulation density based on a cuttings bed thickness model. The method comprises the following steps: determining the cuttings bed thickness of a whole well section based on the cuttings bed thickness model; the annulus effective flow area and the concentric annulus equivalent hydraulic diameter of the shaft are corrected based on the thickness of the cuttings bed of the whole well section; establishing a wellbore flow model, and determining initial wellbore temperature, wellbore pressure and boundary conditions; based on the wellbore flow model, the current wellbore temperature, the current wellbore pressure and boundary conditions, temperature and pressure distribution data of the whole well section are calculated; judging whether the temperature and pressure distribution data of the whole well section converge or not, and obtaining a judgment result; and if the judgment result indicates that the temperature distribution data and the pressure distribution data of the whole well section are converged, the temperature distribution data and the pressure distribution data in the wellbore annulus are obtained, and the equivalent circulation density of the whole well section is calculated based on the temperature distribution data and the pressure distribution data in the wellbore annulus.

The invention relates to the technical field of geologic model analysis, in particular to a coal bed gas fracturing three-dimensional well network seam network design method based on a geologic model, and the method comprises the steps: firstly constructing a three-dimensional discrete geologic model containing grid node mechanical parameters, and generating a three-dimensional dynamic induced stress potential energy tensor field; performing low-potential-energy gradient optimization calculation by using the field to obtain a shaft space topological coordinate avoiding a high-potential-energy area so as to reduce the well wall instability risk; meanwhile, fracture extension simulation is cut off through an equipotential surface threshold value in the field, and hydraulic fracture geometrical morphology parameters matched with formation energy constraint are accurately determined; and finally, integrating the parameters to generate an optimized three-dimensional well pattern seam network design scheme, and realizing efficient and safe fracturing design based on the rock mass accumulated deformation energy distribution characteristics.

The invention relates to a mineral separation density measurement method based on X-ray imaging. The method comprises the following steps: carrying out initial calibration on an X-ray emission source and a digital detector; performing system calibration on the imaging system by using the calibration plate; collecting an X-ray image without a sample and an original X-ray image of a pure solid particle sample with a known thickness; the bed body is filled with a to-be-detected particle sample with the preset mass, and a particle layer is made to be uniform and loose; collecting an X-ray image of the to-be-detected particle sample, and performing geometric correction, gray normalization and phase distribution segmentation processing on the X-ray image based on a calibration result to obtain a bubble phase region and an emulsion phase region; calculating the fluidized bed layer density based on the bubble phase volume fraction, the emulsion phase volume fraction, the bubble phase density and the emulsion phase density of the to-be-detected particle sample; and calculating the fluidized bed mineral separation density according to the fluidized bed layer density. The invention aims to solve the problems of low resolution, poor anti-interference capability and large model error in the existing mineral separation density detection of the gas-solid fluidized bed.

The invention relates to the technical field of unconventional resource development, in particular to a method and a device for determining lithology space-time distribution characteristics of coal measure gas, and the corresponding method comprises the following steps: building a sequence stratigraphic framework of a target work area according to rock debris logging data and logging data of the target work area; determining dominant storage lithology corresponding to each coal series gas; according to the sequence stratigraphic framework and the advantage storage lithology corresponding to each type of coal measure gas, establishing a well connection section and a lithology plane graph; and according to the well connection profile and the lithologic plan, determining the lithologic spatial-temporal distribution characteristics of the coal-series gas. The effective determination method of the lithology space-time distribution rule is formed on the basis of combination of the sequence strata, the rock core and the logging, rock core constraint, logging lithology correction and high-precision sequence strata isochronous framework constraint, and then the lithology space-time distribution rule of coal bed gas, coal series shale gas and coal series tight sandstone gas evaluation is determined.

The invention discloses a coalbed methane horizontal well horizon automatic identification method and related equipment, and relates to the technical field of drilling horizon identification, and the method comprises the following steps: obtaining non-drilling data of a current block; inputting the non-drilling data of the current block into the layered prediction model, and predicting the non-drilling stratum of the current block to obtain a real-time prediction result; and according to the real-time prediction result, adjusting the direction of the drill bit to enable the drill bit to enter the target at the target position. According to the method, the stratification prediction model for geological stratification real-time accurate recognition in the drilling process is established, the model precision is larger than or equal to 90%, meanwhile, the guiding technical process in the traditional drilling process is optimized, the time for manually judging the stratum, the single well construction period and the single well drilling cost are saved, and the stratum is judged in real time to achieve accurate target entering of a drill bit.

The present application relates to the technical field of hydraulic engineering and river dynamics, and discloses a bed sand gradation file splicing method and device, an electronic device and a storage medium, the method comprising: determining a region to be studied, dividing the region to be studied into a plurality of grids, and layering the grids according to a preset step size downward along the ground surface to obtain a plurality of regional nodes; acquiring bed sand gradation data collected at different depths in different geomorphic regions in the region to be studied; mixing the bed sand gradation data of different depths in different geomorphic regions according to the preset step size to obtain bed sand gradation data of different layers in different geomorphic regions; and matching bed sand gradation data for each regional node according to the type of the geomorphic region corresponding to each regional node and the layer in which each regional node is located to obtain a bed sand gradation file for the region to be studied. The present application splices bed sand gradation files of different geomorphic types, thereby quickly generating a complete bed sand gradation file suitable for a two-dimensional water and sediment model.

The invention relates to the technical field of three-dimensional modeling, in particular to a VTK-based three-dimensional geological section model generation method, system and device and a medium. The method comprises the following steps: firstly, acquiring original drilling data, performing nested storage according to the position of the original drilling data on an exploration line, and performing cleaning and multi-dimensional sorting to obtain structured drilling data; extracting ore bed boundary points from the structured data, constructing a local adjacency graph, and calculating a comprehensive regularity score of each quadrilateral patch in the local adjacency graph based on regularity quantitative indexes; setting a threshold value, if the comprehensive regularity score is lower than the threshold value, adopting vtkQuad for modeling, otherwise, adopting vtkTriangle for modeling, and generating primitive data; performing topology check on the primitive data, storing the primitive data into vtkCell Array, converting polygonal primitives into triangular primitives, and smoothing the triangular primitives to generate a three-dimensional geological section model; performing visualization and rendering processing to obtain a final three-dimensional geological section model; according to the invention, accurate data visualization support is provided for geological analysis, and the intelligent and precise level of geological work is improved.

The invention provides a hierarchical data determination method and device. Logging data of a target well in the target area and standard well data of a reference standard well are obtained; determining logging characteristics of the target well according to the logging data; wherein the logging characteristics comprise ratio characteristics of a natural gamma value and a deep lateral resistivity value and curve morphological characteristics, and the curve morphological characteristics are used for reflecting inflection point positions and curvature changes of a natural gamma curve and a deep lateral resistivity curve; according to the standard well data, geological features corresponding to the target well are determined; wherein the geologic features comprise the average layer thickness feature of the main layer and the layer thickness consistency feature between the target well and the reference standard well; using a preset marker bed prediction model to determine layered data of the target well according to the logging features and the geological features; wherein the layering data is used for guiding reservoir position division of the target well. Therefore, the layered data of the target well is determined by fusing the logging features and the geological features.

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.

The invention discloses a hard rock ditching operation robot for submarine pipe cable laying. The hard rock ditching operation robot comprises a self-adaptive rock breaking control milling, drilling and crushing mechanism and a combined water jet spraying mechanism, and the self-adaptive rock breaking control milling, drilling and crushing mechanism comprises a multispectral submarine sediment scanner, a shaft punching part and a self-propelled drill bit connected with the shaft punching part; the shaft punching part is used for applying impact perpendicular to a milling surface to the self-propelled drill bit; the multispectral seabed sediment scanner is used for scanning the sediment at the ditching position to determine the type of the sediment and adjusting the rotating speed and the impact frequency of the self-propelled drill bit according to the type of the sediment. The problem that the hard rock substrate seabed is broken and ditching is difficult is solved, the pipe cable is buried in the groove through hard rock ditching, the problem that the pipe cable is prone to damage due to the fact that the pipe cable is suspended on the surface of bed rock is avoided, and meanwhile the problem that cost is increased due to the fact that the pipe cable bypasses is also avoided.

In general, in one aspect, embodiments relate to a method and / or system for obtaining one or more measurements collected by a downhole tool at a wellbore depth and defining a piecewise-polynomial inversion model describing one or more formation parameters. Systems and methods herein may further be for performing an inversion on the piecewise-polynomial inversion model to determine one or more formation parameters of the inversion model, and adjusting a path of the downhole tool based at least in part on the or more formation parameters of the piecewise-polynomial inversion model.

The present application belongs to the technical field of oil and gas exploration data analysis, and discloses a seismic horizon interpretation method and system based on marker layer flattening. The method loads 3D seismic data of a study area, and loads or interprets marker layer horizon data; performs layer flattening operation based on the marker layer, forms different coordinate systems before and after flattening, and calculates a conversion formula between the two coordinate systems; and converts the 3D seismic data to a new coordinate system by using the conversion formula. The present application converts data by flattening seismic data according to the marker layer, and interprets seismic horizons in the converted new data volume. For areas where the stratum occurrence inclination angle is large and the structure is complex, resulting in difficult stratum interpretation, the present application can more quickly and accurately perform automatic stratum tracking in 3D seismic data, improve the accuracy of seismic horizon interpretation, better analyze geological deposition rules, and thus effectively reduce the risk of oil and gas exploration.

The utility model discloses a device for improving geophysical prospecting electrical method grounding conditions in a shallow bed rock area, which is provided with an electrode base body, the electrode base body is of a long-strip-column-shaped structure, one end of the electrode base body is provided with a conical column head, the electrode base body is internally provided with a liquid storage soft bag, a puncture needle is arranged above the liquid storage soft bag, and the electrode base body is provided with an electrode core. The puncture needle is installed on the rotating seat, an overflow channel is arranged in the rotating seat, and a hammering cap is detachably installed on the rotating seat. By arranging the liquid storage soft bag, the puncture needle, the overflow channel and the like, the resistance reducing liquid is pre-stored in the device, and a resistance reducing agent does not need to be manually and repeatedly applied on site, so that the operation process is simplified, and the working efficiency is improved. Under the complex terrain condition of a shallow bedrock area, the grounding resistance can be rapidly improved, and the problems that a traditional method is tedious in operation and inconvenient to carry are effectively solved.

The invention belongs to the technical field of geotechnical engineering slope supporting, and particularly discloses a red-bed soft rock long bedding slope supporting structure and a supporting design method.The method comprises the following steps that S1, a geologic model is established; s2, determining a sliding surface and a first deformation length: determining a critical instability length by adopting a method of coupling numerical analysis, theoretical calculation and empirical judgment; s3, gliding thrust is calculated, specifically, the gliding thrust is calculated by considering the strength attenuation characteristic of the red-bed soft rock; s4, judging gliding thrust; s5, double rows of anti-slide piles and pre-stressed anchor cables are adopted for comprehensively supporting and retaining the bedding side slope, and an anchoring section needs to be embedded into a stable stratum; s6, a drainage system is arranged, wherein the drainage system comprises multiple layers of drainage holes and slope surface water interception and drainage; and S7, slope protection. According to the method, insufficient supporting range or excessive design can be avoided.

The invention provides a neonatology gypsum salt rock prediction and salt bottom layer blocking method, and relates to the technical field of petroleum drilling exploration, and the method comprises the steps: predicting the top, bottom and thickness of a gypsum salt rock layer for a target region based on seismic data, drilling time and rock debris logging data, and obtaining a preliminary prediction result; predicting the top, bottom and thickness of the gypsum salt rock stratum of the target area through the element logging data to obtain an element logging prediction result; and the preliminary prediction result and the element logging prediction result are integrated, the gypsum salt rock thickness and the salt bottom of the target area are predicted, and layer blocking is achieved. The method is suitable for predicting the thickness and the top and the bottom of the gypsum salt rock formed by continental deposition of a neonatology ancient-recent line, on the basis of seismic data processing and interpretation and rock debris logging data during drilling, element logging data is combined, gypsum salt rock thickness prediction and salt bottom layer blocking are carried out, the layer blocking prediction accuracy is improved, the gypsum salt rock drilling risk is reduced, and the drilling cost is reduced. The drilling cost and period are saved, field requirements are met, and the method has important application value in the aspect of drilling engineering.

The drill bit device of the pebble bed geological pile driver comprises a drill bit rod body, and spiral blades are arranged on the peripheral side of the drill bit rod body; guide teeth are arranged at the drilling end of the drill bit rod body, a plurality of cutting drill bits are arranged at the drilling end of the spiral blade, and the cutting drill bits are sequentially arranged in the width direction of the spiral blade. The guide teeth are double-separate-head combined guide teeth, and the cutting drill bit is obliquely arranged; in the drilling direction, the height of the guide teeth is larger than that of the cutting drill bit. The drilling difficulty of the pebble bed geological drilling machine is solved, the construction progress is accelerated, the damage of the drilling machine is reduced, and the energy consumption is reduced.

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.

The invention relates to a device and a method for controlling the initial moisture content of a red mudstone sample based on quantitative steam. The device comprises a sealed cabin, a steam generation unit, an environment monitoring unit and a central control unit. Steam is introduced into the sealed cabin through the steam generation unit, the mass of a sample is monitored in real time through a high-precision weighing sensor in the environment monitoring unit, feedback control is conducted through the central control unit, and when the mass of the sample reaches a target value calculated according to the target moisture content, humidification is automatically stopped. The characteristics that steam humidification is mild and uniform are utilized, the problems that the surface of the red-layer mudstone is damaged, the water content is not uniform or the whole is disintegrated due to a traditional liquid water humidification method are solved, accurate, uniform and nondestructive control over the initial water content of the red-layer mudstone sample is achieved, and a reliable sample preparation technology is provided for indoor rock and soil tests.

The invention discloses a shaking table capable of performing magnetic separation, which relates to the technical field of preparation equipment and comprises a mounting mechanism, an angle adjusting mechanism and a reciprocating mechanism, a concentrating flux plate is arranged below the bed plate, an ore feeding groove is formed in the upper right portion of the top end of the bed plate, a water feeding groove is formed in the position, parallel to the ore feeding groove, of the top end of the bed plate, a fine selection area is arranged on the left side of the top end of the bed plate, a re-selection area is arranged on one side of the middle of the top end of the bed plate, and a rough selection area is arranged on the side, located on the re-selection area, of the top end of the bed plate. An electromagnetic field is added in an original compound force field, so that mineral particles are zoned on a bed surface according to density and granularity when facing magnetic minerals, secondary separation is carried out according to magnetism, and minerals with similar density and different magnetisms can be effectively separated.

The present application belongs to the technical field of mineral exploration and geological analysis, and discloses a rapid discrimination method for the genesis of gray sandstone in red beds based on big data and application, wherein the rapid discrimination method collects macro-geological data including lithology, color, structure and spatial distribution and geochemical data including carbon isotope (delta 13C) value, and inputs the data into a big data exploration database; a macro-preliminary judgment is made according to the macro-geological data; quantitative verification is made based on the carbon isotope; the macro-preliminary judgment and the quantitative verification result are integrated for comprehensive judgment to form a standardized process; the relative size of delta 13C is taken as a core quantitative criterion to realize rapid and accurate identification of the sedimentary origin and the epigenetic reduction origin. The discrimination result is directly applied to the delineation of sandstone-type uranium mine target area, ore body prediction and exploration deployment, solves the defects of subjectivity and low efficiency of the traditional method, significantly improves the accuracy and efficiency of uranium exploration, and provides technical support for ore prospecting breakthrough.

The invention relates to the technical field of hydraulic engineering and river dynamics, and discloses a bed sand grading file splicing method and device, electronic equipment and a storage medium, and the method comprises the steps: determining a to-be-studied region, dividing the to-be-studied region into a plurality of grids, and layering the grids downwards along the earth surface according to a preset step length to obtain a plurality of region nodes; obtaining bed sand grading data collected at different depths in different landform areas in the to-be-researched area; mixing the bed sand grading data of the different landform areas at different depths according to a preset step length to obtain bed sand grading data of the different landform areas at different layers; and matching bed grading data for each region node according to the landform region type and the layer corresponding to each region node in the to-be-researched region to obtain a bed grading file of the to-be-researched region. According to the method, the bed sand grading files of different landform type areas are spliced, so that the complete bed sand grading file suitable for the two-dimensional water and sand model is quickly generated.