662 results about "Pellets" patented technology

The invention discloses an integrated measurement method and system for hydrological elements in a high-salinity and high-sand environment, and relates to the technical field of hydrological monitoring, and the method comprises the steps: correcting the theoretical signal receiving strength of each sonar through an established sound attenuation model, and then calculating an effective signal-to-noise ratio, thereby achieving the measurement of the underwater topography in the high-salinity and high-sand environment. According to the method, a dynamic weight fusion algorithm is adopted to perform data fusion on the water depth data of each sonar to obtain fused water depth data, and an inversion method based on residual error minimization is adopted to perform iterative optimization on model parameters, so that the accuracy is relatively high. When the water velocity and the flow rate are measured in the high-salt and high-sand environment, iterative decoupling is carried out based on the sediment particle motion comprehensive model to obtain the sediment particle velocity, then the water velocity is updated based on the measured apparent velocity and the difference value, and after the updated water velocity is converged, the flow rate is calculated. And the accurate water flow rate can be calculated by combining the flow cross section area. The measurement precision of the unmanned ship on the hydrological elements in the saline-alkali area can be improved.

The invention provides a marine unfavorable geology reef limestone grouting strength prediction method based on a pore structure. The method comprises the following steps: calculating a reef limestone rock pore value of a reef limestone rock pore volume accounting for a reef limestone rock mass volume; performing size classification on the equivalent diameters of the communicated pores in the reef limestone, and calculating the volume ratio of each type of communicated pores; calculating the pore sphericity of the pore particles according to the pore particle surface area and the pore particle volume; classifying the pore particles according to the pore sphericity, and calculating the sphericity ratio of each type of pore particles; calculating a seepage coefficient based on the pore value of the reef limestone rock, the volume ratio of various communicated pores and the sphericity ratio of various pore particles; calculating the flow of the slurry flowing in the reef limestone rock under the action of different pressures according to the seepage coefficient; and calculating the tensile strength of the reef limestone rock based on the flow before and after grouting. Through accurate permeability analysis, the construction risk and cost are reduced, and meanwhile the bearing capacity of the foundation base is improved.

The invention belongs to a complex lithofacies shale reservoir structure weak plane mechanical parameter determination method and system, and belongs to the field of unconventional shale oil and gas reservoir transformation. The method comprises the following steps: carrying out a nanoindentation experiment test on a rock core sample containing a structural weak plane to obtain a macroscopic uniaxial elastic modulus and macroscopic fracture toughness of the structural weak plane; constructing a particle flow discrete element numerical model; on the basis of construction of the particle flow discrete element numerical model and the macroscopic uniaxial elastic modulus and the macroscopic fracture toughness of the structure weak plane, particle flow micromechanical parameter calibration is carried out; and obtaining the mechanical parameters of the weak plane of the structure based on particle flow microscopic mechanical parameter calibration. According to the method, the compressive strength, the elastic modulus, the Poisson's ratio, the cohesion, the internal friction angle, the fracture toughness and the tensile strength of the structure weak plane can be rapidly and accurately predicted, the defect that an existing indoor physical experiment device cannot measure mechanical parameters of a non-standard sample is effectively overcome, and input parameters are provided for fine simulation of hydraulic fracturing of a complex lithofacies shale reservoir.

The invention discloses a high-efficiency multiphase flow classification and separation integrated treatment method for argillaceous sandstone uranium ore. The crushed argillaceous sandstone uranium ore mixed material is sequentially subjected to hydraulic polishing and cluster breaking treatment, high-frequency linear vibration grading treatment, first-stage multiphase flow rotational flow grading treatment, deep low-frequency efficient ultrasonic scrubbing treatment, second-stage multiphase flow rotational flow grading treatment, jet flow uniform mixing treatment, micro-current activating treatment, hardening and tempering thickening and efficient squeezing solid-liquid separation treatment. According to the invention, mud and sand deep stripping and material fine grading separation of the crushed argillaceous sandstone uranium ore are realized, meanwhile, the fine-particle argillaceous material is subjected to efficient uniform mixing activation and deep efficient dehydration, and four core materials, namely a coarse sand material, a fine sand material, tailing dry slag and a high-concentration uranium ore leaching solution, are finally formed through continuous work; finally, efficient multi-phase flow fractional separation, concentration and purification treatment of the argillaceous sandstone uranium ore is achieved, residues of uranium elements in tailings are reduced, and the deep extraction rate of uranium ore resources is increased.

The invention provides a mineral leaching property analysis method, which belongs to the field of process mineralogy, and comprises the following steps: crushing and enriching a sample to be detected, and selecting single mineral particles to obtain target mineral particles; the preparation method comprises the following steps: coating a sample preparation grinding tool with epoxy resin glue, adding target mineral particles, and carrying out curing and grinding treatment to obtain a primary sample; cutting the primary sample, placing the grinding surface downwards and the three wear-resistant alloys at the bottom of a sample preparation grinding tool, injecting epoxy resin glue, curing to form a composite sample, accurately grinding, polishing, performing carbon spraying treatment, performing first automatic mineralogical analysis, measuring the area of a target mineral, cleaning, and performing leaching treatment to obtain a treated sample; and after solidification, accurate grinding and polishing and carbon spraying treatment, secondary automatic mineralogical analysis is carried out, the area of the residual target mineral is measured, and the leaching index of the target mineral is calculated. Reliable technical support is provided for mineral processing technology optimization and resource evaluation, and the method is particularly suitable for development of efficient leaching technologies of precious metal, rare earth and the like.

The invention provides a method for detecting the porosity of ores in a dump leaching process, and belongs to the technical field of detection of the porosity of the ores. The method comprises the following steps: taking a dump leaching ore body, screening, uniformly mixing, splitting, putting into a dump leaching column to obtain the volume of a sample subjected to splitting in the dump leaching column, then performing fine grinding, putting into the dump leaching column to obtain the volume of the sample subjected to fine grinding in the dump leaching column, and then performing image analysis on the sample subjected to fine grinding to obtain the pore volume among sample particles subjected to fine grinding. And finally, converting the three volumes to obtain the porosity of the heap-leached ore. Through screening treatment, the sample representativeness is effectively improved; the ore before superfine grinding and after superfine grinding is introduced into a dump leaching column, the sampling uniformity is controlled, and the accuracy and stability of data are improved through the in-pile process under the same test column; an image analysis algorithm is introduced, and meanwhile, a correction coefficient is introduced, so that small pores among particles are precisely measured and calculated. The method is simple in process and convenient to operate, and the ore porosity can be rapidly and accurately measured and calculated.

In one embodiment, the disclosure provides a method on a drilling fluid. The method may include acquiring data from each of a particle-size analyzer, x-ray fluorescence instrument, a mud check, and optionally an x-ray diffraction instrument, to yield acquired data for each of a plurality of drilling mud samples, wherein: (a) the particle size analyzer measures a plurality of drilling mud samples; (b) the x-ray fluorescence instrument and the x-ray diffraction instrument measure a mineral analysis of the plurality of drilling mud samples; and (c) the mud check measures properties of the plurality of drilling mud samples. Further, the method may include plotting a particle size distribution curve for at least one of the plurality of drilling mud samples, and calculating an amount of abrasive formation material(s) within at least one of the plurality of drilling mud samples. Further still, the method may include adjusting the drilling fluid.

The invention relates to a marine-source microbacterium laminae CJB-Jou02 strain capable of efficiently biodegrading PE (polyethylene) microplastics, and the degradation capability of the marine-source microbacterium laminae CJB-Jou02 strain is evaluated. According to the microbacterium capable of degrading the PE micro-plastic leaves, the microbacterium is screened out from a marine mud sample, the preservation number of the strain is CGMCC 29643, the strain treats high-density PE micro-plastic for 30 days, the weight loss rate reaches up to 16.6 + / -0.46%, and the microbacterium can be used for degrading the PE micro-plastic leaves. Based on test results of a scanning electron microscope, a Fourier transform infrared spectrum, a water contact angle instrument and an X-ray diffractometer, the strain is proved to have the capability of efficiently biodegrading the PE micro-plastic, the compact crystal structure of the PE micro-plastic is damaged, the particle diameter is obviously reduced, and the hydrophilicity is increased. Meanwhile, the invention also finds that the microbacterium leaf strain CJB-Jou02 has certain degradation capacity on PE (polyethylene) membranes and microplastic bacteria such as PA (polyamide), PP (polypropylene), PS (polystyrene), PET (polyethylene terephthalate) and the like, and a new solution is provided for solving the problem of environmental pollution of PE microplastics.

The invention discloses a construction method of an artificial geological cover layer for carbon dioxide sequestration, and belongs to the technical field of carbon dioxide sequestration. The construction method of the artificial geological cover layer for carbon dioxide sequestration comprises the following steps: determining construction parameters of the artificial geological cover layer; determining the position of an overlying strata artificial geological cap layer in the mining space, and determining the position of an overlying strata key layer by using a key layer discrimination method according to drilling geological data of a mining area; determining the following grouting parameters including arrangement and size of ground grouting holes, proportion and particle size of grouting materials and grouting pressure; grouting is conducted on the artificial geological cover layers with different depths; and CO2 leakage of the artificial geological cover layer is monitored. According to the construction method of the artificial geological cap layer for carbon dioxide sequestration, the CO2 coal mine mining space geological sequestration reserves can be increased, and the application range of the CO2 coal mine mining space geological sequestration technology is wider.

The invention discloses an efficient multiphase flow fractional separation, concentration and purification treatment system for argillaceous sandstone uranium ore. Comprising a hydraulic polishing and breaking pretreatment device, a high-frequency linear vibration classification device, a first-stage multiphase flow cyclone classification device, an energy-gathered ultrasonic scrubbing device, a second-stage multiphase flow cyclone classification device, a high-frequency linear vibration dehydration device, an efficient uniform mixing activation system and a tempering squeezing dehydration system. According to the invention, mud and sand deep stripping and material fine grading separation of the crushed argillaceous sandstone uranium ore are realized, meanwhile, the fine-particle argillaceous material is subjected to efficient uniform mixing activation and deep efficient dehydration, and four core materials, namely a coarse sand material, a fine sand material, tailing dry slag and a high-concentration uranium ore leaching solution, are finally formed through continuous work; finally, efficient multi-phase flow fractional separation, concentration and purification treatment of the argillaceous sandstone uranium ore is achieved, residues of uranium elements in tailings are reduced, and the deep extraction rate of uranium ore resources is increased.

The invention relates to a deep stratum well hole and cave mining system and method, the system comprises a traffic well hole system, the traffic well hole system is provided with at least one well hole smaller than 1 m, an internal channel formed by the well hole is communicated with a cave formed by excavation, and the internal channel formed by the well hole is configured to be a flow-back channel and / or an injection channel; the well hole and cave mining device is provided with a crushing assembly and / or a cleaning and transporting assembly, the crushing assembly is used for carrying out form-controllable mining on the ore on the cave rock wall surface, and the cleaning and transporting assembly is used for cleaning ore particles in the cave or transporting the ore particles to the flowback channel; and the particle flow lifting system is used for lifting the extracted ore particles out of the well through the flow-back channel. The technical problems that when caves of deep stratums are mined, the supporting effect is poor, and the ore particle clearing and transporting efficiency is low are solved, and large-scale and high-efficiency mining operation can be conducted on the deep stratums or non-hard stratums.

The invention belongs to a rock test simulation method, and aims to solve the technical problems of insufficient model adaptability, lack of cyclic loading and unloading simulation and difficulty in parameter calibration due to dependence on a continuous medium mechanical model method when mechanical behaviors of rocks under cyclic loading and unloading conditions are simulated at present. According to the rock loading and unloading response simulation method and the related device, a compression hardening loading and unloading model is constructed, and the compression hardening loading and unloading model comprises a loading particle deformation constitutive model, an unloading particle deformation constitutive model, a tensile deformation constitutive model and a shear deformation constitutive model. A loading particle deformation constitutive model and an unloading particle deformation constitutive model are added in the compression hardening loading and unloading model, the rock compression hardening cyclic loading and unloading model is suitable for rock compression hardening cyclic loading and unloading simulation, and the hardening characteristic and the softening characteristic of the rock under the cyclic loading and unloading condition can be accurately reflected by finely depicting the interaction of particles in the rock to be tested.

A rock breaking efficiency prediction method based on image recognition and machine learning comprises the following steps: acquiring a rock surface image, performing graying processing by applying an image processing technology, and then performing pixel classification and image segmentation so as to clearly divide different minerals into a plurality of independent structure diagrams; modeling a rock material according to mineral components, importing boundary information of the plurality of structure diagrams into a model, generating a plurality of large-particle filled rock blocks with the same size as the plurality of structure diagrams, and calibrating mesoscopic parameter values according to rock mechanical characteristics; establishing a hob rock breaking discrete element calculation model, and performing multiple intrusion rock breaking simulation tests on rock samples with different mineral contents; collecting simulation results to construct a rock breaking efficiency data set; a prediction model is established based on a PSO-BPNN algorithm, and a rock breaking efficiency prediction model is obtained after training; and carrying out real-time prediction on the rock breaking efficiency by utilizing the established model. According to the method, the influence of rock mineral components on the rock breaking effect of the hob is considered, and efficient and accurate prediction of the rock breaking efficiency of the hob is realized by utilizing a method of combining rock microscopic components and macroscopic rock breaking behaviors.

The invention discloses a deep-sea mining multiphase flow particle conveying prediction and regulation method based on flow pattern recognition. The method comprises the steps that pressure, flow, bubble or liquid drop volume fractions and solid particle volume fractions at different positions in a pipeline are periodically collected through collection equipment; according to the pipe diameter and the gas-liquid ratio and the mixing flow speed obtained through calculation, a pre-built-in flow pattern division algorithm is called, and bubble flow, slug flow, vortex and annular flow are distinguished; solving the volume fractions of gas-liquid discrete units of any diameter in different flow patterns; the conveying speed of solid particles in the multiphase flow is obtained according to the gas-liquid dispersed phase volume fraction; and whether the obtained solid particle conveying speed reaches a preset optimal interval or not is judged, and the flow pattern or the gas-liquid ratio of the multiphase flow in the pipeline is controlled according to the result so as to adjust the solid particle conveying speed. The mining efficiency of submarine minerals can be improved, a dangerous flow pattern formed by an unreasonable gas-liquid distribution ratio can be avoided, and efficiency and safety are both considered.

The invention provides a method for measuring particle granularity and morphology, and belongs to the technical field of process mineralogy. According to the method, the particle size of the particles is analyzed on the basis of particle centroids in combination with geometric and statistical parameters, and meanwhile, morphological characteristics of the characterization particles are analyzed. A specific particle size measurement result is an equivalent radius result based on the centroid and can directly reflect the overall size of the particles, and further, a morphological characteristic result is based on centroid distance statistics and can quantify irregularities of the particles, such as roundness, length-diameter ratio and roughness; according to the test method, measurement is carried out on a two-dimensional plane, the measurement result is not influenced by a selected direction, accurate granularity and morphology characterization can be provided for particles with complex morphology (such as a dendritic or porous structure), and a reliable test method is provided for analysis of complex particle systems (such as geological sediments, industrial powder or biological particles).

The invention relates to the technical field of geological structure deformation simulation, in particular to a method and a device for simulating deformation of a basement involved tectonic zone based on discrete elements, and the method comprises the steps: extracting stratum information of a target area through geological survey and seismic data analysis; defining substrate wall conditions according to substrate activity distribution conditions; setting a target speed according to the multi-stage deformation in the target area; based on the geological parameters, determining particle mesoscopic parameters, and constructing a discrete element model; starting the boundary wall and the foundation wall to move, and simulating the dynamic evolution process of the tectonic zone; and when the contraction amount of the rear edge boundary of the motion plate meets a preset condition, acquiring and analyzing a simulation result based on the motion data of the filling particles. According to the method, by simulating and analyzing various basement involving construction modes, controlling the basement speed boundary conditions, simplifying the model calculation amount of the basement, improving the simulation efficiency and enhancing the result reliability, theoretical and technical supports are provided for oil-gas exploration work of the basement involving tectonic zone.

The invention discloses a multifunctional geotechnical mechanical testing system for controlling temperature, humidity and salinity in an extreme environment, and relates to the technical field of ocean geotechnical engineering and geotechnical engineering. The system integrates a high-precision temperature and humidity and salinity control system, can accurately simulate the influence of complex environments such as extreme temperature and humidity, salt spray corrosion and the like on the mechanical properties of geotechnical materials, supports a direct shear test, a pull-out test, a soil body single-particle crushing test and a geosynthetic material stretching and puncturing test, can distinguish static, dynamic and long-term creep test modes, and can be used for testing the mechanical properties of the geotechnical materials. Comprising creep mechanical property testing under cyclic direct shear and continuous load. A visual monitoring assembly is additionally arranged, so that the microscopic deformation and damage process of the sample can be recorded in real time. Through multifunctional integration, temperature, humidity and salinity joint control, visual monitoring and dynamic and static coupling test devices, the technical bottlenecks of single function, environment simulation limitation and microcosmic observation deficiency of traditional equipment are solved, and high engineering application value and popularization potential are achieved.

The invention provides a method for measuring and calculating the article position of continuous silver ore with the particle size of 0.037 mm or above, and belongs to the technical field of mineral grade detection. The silver grade in the sample is measured and calculated through screening; leaching and measuring the content of silver monomers and continuous silver minerals, and reselecting to obtain a heavy sand product; carrying out fluorescent dyeing on the heavy sand product, and selecting monomer silver minerals; analyzing the color of the silver mineral through point scanning data of a scanning electron microscope, melting the monomer silver mineral to obtain the volume of the monomer silver mineral, and calculating the content of the monomer silver mineral; and carrying out conversion to obtain the continuous silver ore article position with the size of more than 0.037 mm. According to the method, the target mineral is rapidly and accurately obtained by adopting density medium reselection and fluorescent dye tracing; introducing a scanning electron microscope to measure and calculate the actual density of the silver mineral to replace the theoretical density, smelting the silver mineral in a mold, and carrying out volume measurement and calculation to obtain the actual metal amount closer to the actual silver mineral; measuring and calculating errors caused by impurities and irregular shapes of mineral particles are reduced; and the calculated grade of the silver mineral is more accurate.

The present invention relates to a calculation method for the general scour pattern of a cross-sea bridge considering the turbulence effect. The research area including the cross-sea bridge project is determined and meshed, the elevations of each grid node are obtained, typical computational hydrological boundary conditions are selected, a non-hydrostatic three-dimensional mathematical model including the entire cross-sea bridge project is established, the hydrodynamic fields before and after the bridge construction are calculated, the tidal level and flow velocity are verified, the pulsating velocity at each grid node, the sediment settlement velocity in still water and the settlement velocity under the influence of turbulent kinetic energy are calculated, the sediment carrying capacity is calculated according to the estuarine fine sediment model, and finally the general scour amplitude of the seabed at each grid node position is calculated, thereby obtaining the characteristics of the general scour amplitude in the upstream and downstream areas of the bridge. Combining the plane three-dimensional numerical model and the sediment carrying capacity calculation method considering the turbulence effect, through the dynamic equilibrium theory, the accurate prediction of the general scour pattern of the cross-sea bridge including the depth and range is realized, and the calculation accuracy of the general scour pattern of the cross-sea bridge is improved.

The invention discloses a quantitative calculation method for pore evolution of a tight sandstone reservoir under a polarizing microscope, and relates to the technical field of mineral resource development, and the method comprises the following steps: obtaining pore evolution parameters of a rock casting body slice by using a microscope; determining an initial porosity value based on the percentage ratio of the mineral particles of each particle size; calculating the porosity value of the compacted rock on the basis of the residual intergranular pore surface porosity, the cement content surface porosity and the cement corrosion surface porosity; calculating a compaction coefficient based on the deepest buried depth value of the rock, the initial porosity value and the porosity value of the compacted rock; based on the initial porosity value, the compaction coefficient and the depth values of the rock at the multiple depths, the compaction porosity reduction rate of the rock at the corresponding depth is calculated; calculating the cement porosity reduction rate based on the cement content surface porosity and the cement corrosion hole surface porosity; and calculating the corrosion porosity based on the initial porosity value, the particle corrosion pore surface porosity and the cement corrosion pore surface porosity. According to the method, the pore evolution process of the tight sandstone is reproduced.

The invention provides a manufacturing method of a rock-like material considering prefabricated fractures, and the method comprises the following steps: obtaining three-dimensional scanning data of a rock sample through a double-source double-energy CT scanning system, carrying out three-dimensional reconstruction and analysis on the three-dimensional scanning data, and extracting the particle size distribution range, volume fraction and fracture parameters of minerals in rock; according to the particle size distribution and proportion of minerals, mineral particles consistent with rock minerals in type are prepared through crushing and mixed in proportion, and the stacking porosity is calculated; adding epoxy phenolic resin according to the porosity to form a uniformly mixed material; a fracture structure model is generated through the 3D printing technology, and camphor is selected as a fracture model consumable; fully stirring the crack model and the mixed material, filling the mold in a layered manner, and compacting; heating in a muffle furnace to cure the epoxy phenolic resin, sublimating through camphor to form a crack structure, and cooling to obtain the rock-like material with similar mineral composition and crack characteristics. According to the method, the rock similar material containing the prefabricated cracks can be rapidly manufactured.

The invention discloses a method for determining the shale content of tight sandstone, and relates to the technical field of exploration and research of tight rock oil and gas reservoirs. The method comprises the following steps: identifying a rock slice identification photo by using a computer image identification method, obtaining the area percentage of debris particles with the diameter greater than a set threshold value in the slice identification photo, and then calculating the area percentage of argillaceous particles in the slice identification photo; according to the area percentage of the argillaceous particles and the corresponding times of the polarizing microscope, displaying the argillaceous particles in a rectangular coordinate system in a scatter mode; fitting all scatter points by using a nonlinear least square method, and establishing a shale content volume percentage change relation curve under different objective lens multiples of the polarizing microscope; and solving the curvilinear equation, and calculating the shale content of the sample by using the curvilinear equation. According to the method, the error caused by the fact that the shale content is calculated by an eye estimation method singly through a slice identifier is avoided, and the analysis result is more consistent with the real content of the sample, so that the accuracy of the shale content determination by an image method is greatly improved.

The invention discloses a slag permeability coefficient depth distribution prediction method considering a particle crushing effect, and belongs to the technical field of rock-soil body performance prediction. According to the invention, a dynamic triaxial test is carried out on a slag sample, and the dynamic evolution law of grain composition and breakage rate of slag at different depth sites after different vibration times of loading is explored. Meanwhile, a seepage test is carried out on the slag subjected to cyclic loading and crushing through a seepage erosion simulation test device, the critical hydraulic gradient of migration and structural damage of fine particles in the slag of different grades under the seepage erosion effect is explored, the degradation and damage mechanism of the slag is revealed, and a negative index continuous grade formula is used as a hub; according to the method, a prediction model of the particle crushing index and the permeability coefficient is constructed, and the internal mechanism of the particle crushing behavior and the permeability characteristic evolution of the slag roadbed under the cyclic load effect is disclosed, so that the predicted permeability coefficient is closer to the actual permeability coefficient, and the prediction precision is improved.

The invention discloses a comprehensive treatment system and method for shield muck in a complex geological environment. The problem that in the prior art, the shield muck treatment efficiency is low in the complex geological environment is solved. The method mainly comprises the steps that S1, the shield muck is pumped into a mud-water separation system for muck and mud separation; s2, setting the specific gravity separation value of muck-containing particles to be 2.70 KG / m, after the slurry enters a slurry making system, conveying the slurry with the specific gravity of muck-containing particles smaller than 2.70 KG / m to a shield tunneling machine for tunneling circulation, and conveying the slurry with the specific gravity of muck-containing particles larger than 2.70 KG / m to a filter pressing system for filter pressing dehydration or conveying and filling the slurry into a geotextile tube bag for curing dehydration; and S3, sand washing and recycling are conducted on muck generated by the mud-water separation system, the filter pressing system and the geotextile pipe bag. According to the method, the slurry and the muck in the shield muck can be efficiently separated by combining methods of mud-water separation, filter pressing dehydration, geotextile tube bag solidification dehydration and the like, and the separated slurry and the separated muck are respectively recycled.

The invention belongs to the technical field of geological sample analysis, and particularly relates to a heavy mineral fidelity pretreatment and morphology automatic characterization method based on artificial intelligence. The method is based on a medium-low hardness heavy mineral fidelity separation and purification technology, an integrated multifunctional target manufacturing technology, a microscopic image intelligent acquisition technology and intelligent identification and feature extraction based on deep learning. The method comprises the following steps: acquiring fidelity heavy mineral particles which maintain the original three-dimensional morphology, are not reset in internal thermosensitive geological records and are not subjected to any systematic deviation screening on population composition, calculating a series of morphological parameters such as an extension coefficient, roundness, color and the like of each heavy mineral particle, and finally outputting a structured quantitative data report. According to the method, multidirectional and intelligent fidelity is realized from the source, and the analysis flux and objectivity are greatly improved by an automatic process, so that systematic and quantitative mineral resource general survey on massive fine particles in a giant deposition system becomes possible.

It is disclosed a method for building a 3D model of a reservoir, comprising: -defining a pre-sedimentation model comprising a bottom surface comprising a plurality of cells, and -iterating, a plurality of deposition modelling steps, including: ͦ simulating deposition of a layer of sediments on the bottom surface or a previously deposited layer of sediment, each layer corresponding to a determined period of time of sedimentation and comprising a plurality of cells, and ͦ computing petrophysical parameters associated to at least a cell of the generated layer, wherein simulating deposition of a layer of sediments comprises: ͦ Introducing a plurality of particles within the model, each particle being associated to a mineral element and a size, ͦ simulating transport of the introduced particles, the transport of a particle comprising moving the particle from one cell to another or depositing the particle, and ͦ generating, on the bottom surface or on a previously deposited layer of sediments, a layer comprising a plurality of cells where each cell is associated to a thickness of deposited particles, and wherein the petrophysical parameters associated to each cell of the generated layer are computed from the mineral elements and sizes of the particles deposited in each cell.

The invention discloses an abandoned mine oil storage chamber surrounding rock property evaluation method, and relates to the technical field of mineral engineering. The method comprises the following steps: acquiring damaged rock samples with different oil-water soaking times, and analyzing silicon element content change, surface particle characteristics, crack development and hole depth change of the damaged rock samples so as to determine internal structure erosion degree and surface topography characteristics; drawing a uniaxial compression stress-strain curve, a time-varying curve of acoustic emission ringing count rate and accumulated ringing count, a damaged rock sample RA-AF graph and a typical moment vertical displacement field graph, and obtaining acoustic emission characteristics and a surface displacement field of the damaged rock sample; calculating different energy values and drawing an energy evolution trend curve; and comprehensively evaluating the rock properties of the damaged rock sample under different oil-water soaking times according to the internal structure erosion degree, the surface topography characteristics, the acoustic emission characteristics and the energy evolution law. According to the invention, the multi-angle macro-micro characteristics of the surrounding rock of the abandoned mine oil storage chamber can be analyzed, and the comprehensive evaluation of the surrounding rock property is realized.

The invention discloses a rock permeability testing system in a high-temperature and high-pressure environment and a using method thereof, and belongs to the technical field of geothermal development or coal in-situ gasification mining. The test system is composed of a stress loading system, a test kettle assembly and a magnetic particle imaging system. When in use, the stress loading system and the test kettle assembly provide conditions such as high temperature, high pressure, seepage fluid and the like for a test piece; and detecting the spatial distribution state of the nano magnetic induction particles added in the seepage fluid through a magnetic particle imaging system to observe the pore and crack distribution characteristics in the test piece or detecting the nano magnetic induction particles added in the pollutant solution to observe the pollutant migration condition. The test system is scientific in design, simple in structure and easy to operate and maintain, can monitor pore fracture distribution and pollutant migration conditions in the test piece in real time under high-temperature and high-pressure conditions, provides accurate dynamic observation data, and provides important technical support for reservoir assessment and optimization in a complex environment.

The invention relates to a pellet compressive strength factor detection device, and belongs to the technical field of ironmaking processes, S1, selecting pellet samples of the same batch, respectively weighing, recording the mass, and marking; s2, carrying out porosity detection on the batch of pellet samples to obtain a porosity index; and S3, carrying out compression resistance detection on the eight groups of pellet samples in the batch at the same time through a detection device. Through cooperation of the feeding assembly and the driving assembly, a pellet sample in the fixed cover is divided into eight equal parts, through cooperation of a shielding ring and an electric telescopic rod A, the pellet sample is fed at a time, and through a pressing mechanism and a pressure sensor, compressive strength detection of eight sets of samples in one environment is achieved at the same time; through cooperation of the scraper blade and the gear motor, the crushed pellet samples are cleaned and fed in sequence, the pellet samples can be detected again in the same mode, the detection continuity is achieved, the overall detection time is shortened, and the overall detection working efficiency is improved.

The disclosed embodiments provide a technique for modeling a marine carbon dioxide removal system. The technique includes generating, via a plume dispersal simulation, a plurality of trajectories for a plurality of particles associated with a marine carbon dioxide removal intervention. The technique also includes computing, based on a set of intervention concentrations associated with the plurality of trajectories, (i) a set of carbonate system values and (ii) a set of air-sea flux values over a time period associated with the plurality of trajectories. The technique further includes generating, based on the set of carbonate system values and the set of air-sea flux values, a set of predicted effects associated with the marine carbon dioxide removal intervention over the time period.