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136 results about "Regional geology" patented technology
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Regional geology is the geological study of large-scale regions. Usually, it encompasses multiple geological disciplines to piece together the history of an area. It is the geologic equivalent of regional geography. The size and the borders of each region are defined by geologically significant boundaries and by the occurrence of geologic processes. Examples of geologically significant boundaries are the interfingering facies change in sedimentary deposits when discussing a sedimentary basin system, or the leading or boundary thrust of an orogen.
Method of constructing a geomechanical model of an underground zone intended to be coupled with a reservoir model
InactiveUS20050234690A1MoreEasy to predictElectric/magnetic detection for well-loggingComputation using non-denominational number representationModel methodDiscretization
Method of constructing a geomechanical model of an underground zone intended to be coupled with a reservoir model allowing simulation of fluid flows in the zone, from a geological model of the zone discretized by a fine grid. Basically, geomechanical properties are associated with the various cells of the geological model on the basis of experimental data, the underground zone is discretized by a geomechanical grid with larger cells than the geological grid, and a scale change is applied to the geomechanical data included in the geological model in order to define equivalent geomechanical properties at the scale of the geomechanical grid of the zone. Application: improvement in the quality of coupled simulations between geomechanical and reservoir models.
Owner:INST FR DU PETROLE
High-altitude permafrost region porphyry type copper polymetallic mine exploration technology combination method
InactiveCN103852807AImprove exploration efficiencyNarrow down the scope of prospectingGeological measurementsPetrochemistryRegional geology
The invention discloses a high-altitude permafrost region porphyry type copper polymetallic mine exploration technology combination method which can improve the prospecting success rate. The method includes the following steps: A, determining a metallogenic system as a collision orogenic metallogenic system in cooperation with a collision orogenic regional geological background according to the output spatial-temporal characteristics of a permafrost region porphyry type copper molybdenum mine typical mineral deposit and numerous mineral occurrences; B, measuring stream sediments with the aim of observing geochemical halos on the upper portion of a porphyry body mineral body, defining a magnetic abnormity region through high-accuracy magnetic measurement, and defining a remote sensing predicting region with the aim of forecasting mineral resources such as copper, lead and zinc through high resolution remote sensing; C, conducting 1:1 soil profile or petrochemistry profile, groove and well exploratory exposure on explored abnormal or mineralization clues; D, defining a mineralized region or the mineral body; E, verifying the defined mineralized region or mineral body through drilling; F, determining the mineral body or the mineral deposit. By means of the method, the prospecting working period of a porphyry type copper molybdenum mineral region can be shortened, and meanwhile numerous metal mineral bodies can be explored.
Owner:青海省地质矿产研究所
Three-dimensional geological model constructing and integrating method for mountain city area
ActiveCN103886641ABuild accuratelyRealize visual integration3D modellingGeomorphologyVisual integration
The invention discloses a three-dimensional geological model constructing and integrating method for a mountain city area, and belongs to the field of three-dimensional geological models. The construction of the three-dimensional geological model for the mountain city area is achieved through the method; due to the fact that the features of the geological structure of the mountain city area are combined, according to the process of constructing a sectional framework, drawing a section and constructing a geological model and the method for constructing the geological model by utilizing the section, the construction of the three-dimensional geological model for the mountain city area is completed more accurately. According to the three-dimensional geological model constructing and integrating method, visualization integration of the three-dimensional regional geological model is further achieved, and a data basis is provided for application analysis of geological topics. Moreover, with regard to the result data of the formed three-dimensional regional geological model, visual integration simulation on a three-dimensional digital city platform is achieved, and real-time geological analysis of the three-dimensional geological model can be achieved in a three-dimensional scene.
Owner:CHONGQING SURVEY INST
Computer-aided geologic investigation system based on portable machine
InactiveCN1477567AAuxiliaryGo digitalSpecial data processing applicationsGeological measurementsData warehouseData acquisition
The present invention relates to a computer-aided geological survey system based on portable machine. It adopts the multiple S integration technique including GIS, GPS, DBS, RS, CADS, ES and ANNS systems and method oriented towards object to make design and development. The data collected by said system are fed into unified space data base and attribute data base, and the data base technique can be used to make effective connection and information extraction. The system includes front-stage material collecting and reduction, wild data acquisition and indoor data comprehensive reduction three subsystem platforms.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Low pressure recovery process for acceleration of in-situ bitumen recovery
A method for recovery of hydrocarbons from a subterranean reservoir by operating adjacent injector producer well pairs under conditions of steam assisted gravity drainage (SAGD) with a lateral drainage well between and substantially parallel to them; the lateral drainage well is operated under conditions of intermittent steam injection and alternating oil, water and gas production; NCG is co-injected with steam into both the injector wells and the lateral drainage well at selected intervals, and in selected quantities in order to control the steam saturation of the SAGD steam chamber and the rise of the steam chamber, and to encourage lateral fluid communication between the adjacent well pairs and the LD well; controlling gas injection and production in order to control the rise of the steam chamber to improve production of oil; operating the well pairs and the LD well under conditions of a steam chamber pressure that is initially and briefly high to establish a steam chamber, but thereafter may be reduced to as low as 200 kPa; operating this low pressure SAGD in reservoirs that are at low pressure, due to factors such as depleted gas caps, regional geology, lack of cap rock, thief zones, or other low pressure zone or loss zones.
Owner:ATHABASCA OIL CORPORATION
Shale gas single well geological comprehensive evaluation method
ActiveCN106168685AThe geological comprehensive evaluation is clearClear evaluationGeological measurementsFragilityFacies
The present invention discloses a shale gas single well geological comprehensive evaluation method. The method comprises the following steps: stratigraphic division and comparison and sedimentary facies analysis; shale gas reservoir forming condition and main controlling factor analysis; shale fragility analysis; evaluation grading according to a shale gas selection region evaluation parameter table suitable for exploration and development of a research region; and finally, optimization of the layer segments of profitability and the ranges of profitability. Through adoption of the technical scheme, the shale gas single well geological comprehensive evaluation method can objectively and roundly evaluate the shale gas single well geological condition and can provide detailed reference data for well exploitation and geological evaluation of adjacent shale gas single wells and shale gas regions in the later period so as to break the limitation of the current evaluation method, define the shale gas single well geological comprehensive condition and avoid unnecessary waste.
Owner:SOUTHWEST PETROLEUM UNIV +1
Method for filling digit on map utilized in regional geological survey
InactiveCN1480892AAvoid confusionEliminate differencesProgram controlSpecial data processing applicationsData processing systemGeological survey
Analyzing, designing and editing the digit filling system through unified modeling language (UML) designing tool and selected helical type software life cycle model based on different needs. Original geologic field information obtained from observation, fetched object etc. along continuous geologic route through help of digitized map spotting procedure of field route is converted to relevant data processing system so as to obtain digitized actual material map, sketch geologic map and geologic map. The invention realizes digitization and standardization in regional geological survey as well as speeds up time for arranging and processing data in regional field geological survey.
Owner:DEV RES CENT OF CHINA GEOLOGICAL SURVEY
Small sand body boundary identification method and small sand body space quantitative description method
InactiveCN104698496AImprove forecast accuracyAccurate borderSeismic signal processingGeomorphologyWell logging
The invention discloses a small sand body boundary identification method and a small sand body space quantitative description method. The small sand body boundary identification method comprises the following steps: summarizing the development rules and scale of a sand body according to the geological situation of a region; summarizing the seismic response characteristics of a reservoir and carrying out seismic profile identification and interpretation through seismic forward modeling; processing earthquake in a frequency division way, extracting seismic attributes of different frequency bands, and adopting known well data analysis to preferably select seismic attributes better corresponding to the reservoir and the sand body; and finely describing the sand body by comprehensively adopting the geological rules, sand body seismic response characteristics and frequency-division seismic attribute analysis. The small sand body space quantitative description method comprises the steps of drawing the boundary of a sand body and determining a favorable area of a reservoir by the above method, and quantitatively describing the spatial shape of the sand body through well logging constrained inversion. The boundary of a described small sand body is accurate and quick to describe, and the accuracy of reservoir predication can be improved.
Owner:CHINA PETROLEUM & CHEM CORP +1
Interpretation method and system for hydrofracture micro-seismic event
The invention provides an interpretation method and system for a hydrofracture micro-seismic event. The method comprises: collecting regional geological structure data of a target reservoir stratum; collecting seismic fissure data of the target reservoir stratum; collecting a hydrofracture micro-seismic event of the target reservoir stratum; extracting attribute data from the seismic fissure data; determining a reservoir stratum characteristic parameter according to the seismic fissure data; and on the basis of the regional geological structure data, the attribute data, and the reservoir stratum characteristic parameter, interpreting the hydrofracture micro-seismic event to obtain an interpretation result. Therefore, on the basis of combination of the attribute reflecting the natural fissure feature in the seismic data, the reservoir stratum characteristic parameter, and the micro-seismic event feature, the interpretation result of the micro-seismic event distribution feature becomes persuasive; the reservoir stratum modification result can be evaluated well; and the follow-up horizontal well pattern layout can be guided.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
A method for predicting trend of regional geological hazards
The invention discloses a regional geological hazard trend prediction method, comprising the following steps: inferring and analyzing the occurrence law of the geological hazard; setting a predictioncalculation unit, a prediction period and a prediction period; according to the occurrence of geological hazards in many years and the statistical regularity of geological environmental factors such as slope height, slope degree, rock and soil mass type, geological structure and so on, at the same time, the influence of different geological hazards being analyzed based on the historical data of geological hazards, and the value being assigned quantitatively; finally, after the end of the prediction period, the prediction results being checked according to the actual situation of geological hazards, the reasons of prediction deviation being analyzed, and the parameters being assigned by feedback and correction, so as to optimize the prediction model. On the basis of geological environment conditions, considering the main influencing factors such as climate, earthquake and human engineering activities, the occurrence trend of geological disasters, such as the number of geological disasters, the period of high occurrence, the key areas and the main types, can be accurately predicted quantitatively, so as to provide support for the deployment of geological disasters prevention.
Owner:中国地质环境监测院
Sandstone-type uranium mine favorable mineralization lithofacies belt positioning method
ActiveCN109270589ATo achieve the purpose of plane recognitionPracticalGeological measurementsHorizonStructure of the Earth
The invention belongs to the technical field of sandstone-type uranium mine mineralization prediction, and relates to a sandstone-type uranium mine favorable mineralization lithofacies belt positioning method. The method includes the following steps that: step 1, regional geological data are collected, and a sandstone-type uranium mine uranium-prospecting key area and target horizon are determined; step 2, the sedimentary facies type and spatial distribution characteristics of the key area and the target horizon in the step 1 are sorted; and step 3, the sedimentary facies belt of favorable uranium mineralization is delineated qualitatively and quantitatively on the basis of a uranium-bearing stratum structure, sand body physical properties, lithological combinations, paleoclimate, oxidizing zone developmental conditions and uranium-bearing geological conditions.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
Method for calculating mineralization relation of clay mineral object and uranium in sandstone type uranium deposit
ActiveCN103954739AAvoid mixingThe purification method is reasonable and feasibleEarth material testingClay mineralsOxidation zone
The invention belongs to geology technical field, and more specifically relates to a method for calculating mineralization relation of a clay mineral object and uranium in a sandstone type uranium deposit. A purpose of the method is a quantitative analysis of mineralization relation between the clay mineral object and uranium in the sandstone type uranium deposit. The method comprises the following steps: taking an interlayer oxidation zone, a transition zone and a reducing zone for selecting the samples for different subzones, calculating mass of three samples, uranium-containing mass and proportion; separating and purifying the clay mineral object, and calculating the mass; analyzing types, composition and property of the clay mineral object in three samples; calculating the uranium-containing mass and the uranium-containing proportion; performing an adsorption reaction experiment of the clay mineral object and uranyl nitrate to obtain the most favorable adsorption condition; researching the secondary adsorptivity of the clay mineral object in the sample to uranium under the most favorable adsorption condition; analyzing the adsorptivity difference of a typical mineral standard sample mixture and the clay mineral object in the sample, comparing the area geology background and the most favorable adsorption condition, and determining the enrichment effect of the clay mineral object to uranium.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
Soft coal step-by-step zooming hydraulic fracturing anatonosis device and method
ActiveCN107725020AEffective fracturingEasy extractionFluid removalGas removalForming gasHydraulic fracturing
The invention relates to a soft coal step-by-step zooming hydraulic fracturing anatonosis device and method, relating to the field of coal mine gas extraction. A hydraulic fracturing anatonosis deviceincludes a hole sealing device and a hydraulic fracturing device. The method contains the following steps: S1, classifying coal strength from the near to the distant according to field coal-rock massactual measurement regional tectonic distribution, coal mass joints and pore and fracture development situations, determining coal bed joints and pore and fracture development situations as well as coal strength, and forming gas extraction fracturing drill holes; S2, efficiently sealing the gas extraction fracturing drill holes by adopting a hole sealing device; and S3, carrying out step-by-stepzooming hydraulic fracturing on the gas extraction fracturing drill holes by adopting the hydraulic fracturing device. According to the device and the method which are provided by the invention, fractures in coal-rock masses can be extended to the utmost extent when being sufficiently developed, strong support is provided by follow-up efficient gas extraction, and a technical guarantee is providedfor precise gas extraction of a working surface and safe production.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
Coverage type karst multi-line simultaneous detection and survey method under strong interference condition
InactiveCN108612074ASolve the karst problemValid Match Test RequirementsIn situ soil foundationCoverage TypeRock core
The invention discloses a coverage type karst multi-line simultaneous detection and survey method under a strong interference condition. The coverage type karst multi-line simultaneous detection and survey method under the strong interference condition comprises the following steps of: researching the background of areal geology and regional hydrogeology, collecting and analyzing background information and early-stage survey data of areal geology and regional hydrogeology, and determining spacing between survey points and a geophysical prospecting CT profile line net arrangement form accordingto the project type, the design scheme and the early-stage survey data; adopting an intuitional method to observe a drilled rock core, adopting a drilling color television to perform in-situ observation of an karst cave or a soil cave, acquiring a hole wall image in real time by an imaging system, and performing primary image on an all-hole wall; knowing karst cave distribution, a shape and a large-scale basic development rule according to detection and survey; comprehensively explaining and delineating an abnormal point according to geophysical prospecting results, and performing planar projection synthesis on abnormal regions delineated on different CT profiles; and performing comprehensive drilling, test, geophysical prospecting and hydrogeological conditions to analyze the karst development rule. The coverage type karst multi-line simultaneous detection and survey method has the advantage of being capable of accurately reflecting a karst development condition.
Owner:长江岩土工程有限公司 +2
Transtensional fault mudstone smearing effect evaluation method
ActiveCN108508484ASolve the technical defect that the closedness evaluation is difficultThe evaluation method is accurateSeismic signal processingLithologyGeomorphology
The invention discloses a transtensional fault mudstone smearing effect evaluation method comprising the following steps: 1, determining a transtensional fault according to regional geological background and fracture combination forms; 2, using time-depth conversion to obtain an inclination slip L of the transtensional fault on an earthquake profile vertical to the fault direction; 3, obtaining asection scratch direction according to the bored fault and cored rock core observation, and obtaining an angle [alpha] between the fault total slip direction and a direction slip; 4, using a trianglefunction: L1=L / sin [alpha] to obtain the fault total slip L1; 5, projecting the logging lithology data to the geological profile, thus obtaining a lithology joint relation of different layers of two fracture plates; 6, solving the ratio between an accumulated thickness H of the fault mudstone and the transtensional fault total slip, thus obtaining a calculation formula DMSP. The method can accurately calculate and determine the transtensional fault enclosing capability, thus predicting and evaluating an oil gas migration direction.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Gas-containing-coal multistage permeability increasing method
InactiveCN106437824AQuality improvementImprove use valueFluid removalGas removalINCREASED EFFECTCoal
The invention discloses a gas-containing-coal multistage permeability increasing method. The gas-containing-coal multistage permeability increasing method includes the steps that firstly, the geological conditions of a coal seam hosting region, the coal metamorphism degree, the coal class and gas parameters are determined; secondly, according to whether a coal seam is located at a fault portion or a fold portion, different schemes are adopted to achieve first-stage permeability increasing of gas containing coal and detect the permeability increasing effect, and if a preset effect is achieved, permeability increasing of the whole coal seam is carried out with the first-stage permeability increasing scheme; thirdly, if the preset effect is not achieved, on the basis of the first-stage permeability increasing, second-stage acidification permeability increasing is carried out on the gas containing coal; finally, after the second-stage acidification permeability increasing is completed, gas extraction is carried out on the gas containing coal. According to the gas-containing-coal multistage permeability increasing method, different permeability increasing schemes are formulated according to the geology of different coal-seam hosting regions, and high pertinence is achieved; meanwhile, after multistage permeability increasing is adopted, the gas permeability of the coal seam is greatly improved, and the gas extraction rate is increased.
Owner:田成林
Mining area water resource comprehensive utilization method based on mine water underground storage
InactiveCN108755836AReduce ineffective effluxAvoid wastingDrinking water installationAridWater source
A mining area water resource comprehensive utilization method based on mine water underground storage comprises the following steps of: step 1, determining the hydrogeological parameters of the roof of an underground reservoir; based on the regional geological hydrogeological data, the formation structure of a coal seam roof and the distribution of a water-blocking layer are determined through ground hydrogeological drilling and underground drainage drilling; step 2, determining the water storage system of the underground reservoir; step 3: comprehensively usingthe water resources in the mining area; through the water storage system of the underground reservoir in step 2, external water resources, the underground drainage and the roof water resource are incorporated into the comprehensiveutilization of the water resources, and the water resource utilization is carried out by using aseparate water supply principle; therefore, the method reduces the ineffective discharge of mine water resources and avoids the waste of the water resources; the external purchase of domestic water is reduced, and the related expenses of an enterprises are saved. Finally, the sustainable utilization ofthe mine water resources in the arid ecologically vulnerable area of North China is realized, and the valuable groundwater resources in the area are protected to a maximum extent.
Owner:XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
Method for prospecting pegmatite rare metal
InactiveCN109324355AImprove exploration efficiencyShorten the survey cycleGeological measurementsMarking outPegmatite
The invention discloses a method for prospecting a pegmatite rare metal. The method comprises the following steps of preliminarily identifying a pegmatite vein space distribution by use of high-precision remote sensing interpretation according to a regional geological background and a magmatic rock distribution region; performing geological survey by use of a large 1:10,000 scale; accurately plotting a pegmatite vein distribution law graph to preliminarily screen out a pegmatite vein distribution region; performing stream sediment measurement in a ratio of 1:25,000 and large-scale high-precision magnetic measurement, delineating a rare element stream sediment anomaly distribution diagram and a high-precision magnetic measurement anomaly diagram; deploying a lithogeochemical profile in a ratio of 1:5,000 in a key anomaly section for control tracing, preliminarily and optimally marking out a pegmatite-containing vein material; deploying an exploratory trench for disclosure control to mark out a mineralized body or an ore body; preferably optimally deploying a drilling hole for the pegmatite vein with high grade and large scale according to characteristics of the mineralized body or the ore body to perform deep verification, and specifically delineating the ore body.
Owner:青海省地质调查院
Multi-stage permeability increasing method for coal body containing gas
Owner:SHANDONG UNIV OF SCI & TECH
Geological disaster monitoring method and monitoring system based on big data
PendingCN110046772AGuarantee normal economic constructionEnsure the safety of life and propertyForecastingTransmissionOccurrence dataIncidence estimation
The invention discloses a geological disaster monitoring method and monitoring system based on big data. The method specifically comprises the following steps: S1, installing data acquisition equipment; S2, monitoring area geological data detection and acquisition, S3, performing acquisition and detection data wireless transmission, S4, performing historical disaster data extraction and analysis,S5, performing disaster occurrence rate estimation, S6, performing disaster pre-analysis according to disaster occurrence rate estimation values, and S7, performing disaster occurrence judgment and reminding. The invention relates to the technical field of geological monitoring. The geological disaster monitoring method and monitoring system based on big data realize to accurately judge geologicaldisaster occurrence rate of the monitored area, and the pre-judgment error is greatly reduced. A plurality of geological detection devices are arranged in a monitoring area for wireless transmissionof detection data. Comprehensive geological disaster situation estimation is carried out in cooperation with historical geological disaster occurrence data, and the purposes of guaranteeing normal economic construction of the monitoring area and life and property safety of people are achieved through accurate estimation.
Owner:王国新
Radar satellite remote sensing coal-exploration method
ActiveCN102176061AAvoid blindnessIncrease success rateDetection using electromagnetic wavesRadio wave reradiation/reflectionNatural satelliteEarth surface
The invention provides a radar satellite remote sending coal-exploration method which comprises the following steps: interpreting a radar satellite image to obtain the position information of a carbonaceous rock;, and actually measuring the coal-containing information of the carbonaceous rock on the basis of interpretation. Compared with the prior art, the radar satellite remote sending coal-exploration method has the beneficial effects that a microwave (radar) waveband can penetrate through the cloud, fog, rain and forest in the tropical rain forest, the radar satellite data image can directly reflect the surface geological condition in the tropical rain forest to initially interpret the radar satellite data so as to determine a regional geological structure and the distribution range of the coal-containing rock system; and a remote sensing coal-exploration work region is determined according to the distribution range of the coal-containing system, the blindness of selecting the geological coal-exploration region is prevented, the coal-exploration risk is avoided, and the success rate of exploring new coal fields is greatly improved.
Owner:CHNA ENERGY INVESTMENT CORP LTD +1
Geological disaster early warning system
InactiveCN111429698AImprove recognition accuracyReflect the status of the assignmentAlarmsEarly warning systemMining engineering
The invention belongs to the technical field of geological disaster early warning, and discloses a geological disaster early warning system, which comprises a vibration detection module, a terrestrialheat detection module, a mobile monitoring module, a land subsidence detection module, a main control module, a geological structure identification module, a disaster model construction module, a judgment module, an early warning module and a display module. According to the invention, proper size parameters can be selected according to different conditions of different areas of an image throughthe geological structure identification module, so that the geological structure identification precision is improved; meanwhile, the three-dimensional geological disaster model and the disaster areageological model which are constructed through the disaster model construction module are constructed based on the interpolated drilling data, so the occurrence state of geological disasters in spacecan be reflected more truly; and the three-dimensional model is connected with a database, so that geological disaster information can be edited and queried.
Owner:EAST CHINA UNIV OF TECH
Tunnel and underground engineering surrounding rock fracture water grouting control design method
ActiveCN108487918AEnsure safety and stabilityUnderground chambersTunnel liningWater flowDesign methods
The invention discloses a tunnel and underground engineering surrounding rock fracture water grouting control design method. The tunnel and underground engineering surrounding rock fracture water grouting control design method comprises the steps of analyzing of regional geology and hydrology geology conditions, finding out of master control water-flowing-fracture-contained basic geological features, analyzing and testing of physical and chemical properties of typical grouting control materials, building of the fracture tunnel interior grouting diffusion control equation, calculation of the theoretical value of the grouting pressure based on grouting process control, calculation of limit grouting pressure based on surrounding rock stability analysis, determining of the design values of thegrouting final pressure and the drilling intervals, formulating of the grouting finishing standard, dynamic design of underground engineering surrounding rock fracture water grouting control schemesand the like. By adopting the design method, scientific selecting of key technological parameters in the tunnel and underground engineering surrounding rock fracture water grouting plugging engineering can be achieved, and the good grouting effects is achieved.
Owner:SHANDONG UNIV OF SCI & TECH
Debris flow channel siltation depth calculation method based on drilling data
ActiveCN110162866AJudgment criteria are intuitiveEasy accessForecastingSpecial data processing applicationsGeomorphologyWell drilling
The invention discloses a debris flow channel siltation depth calculation method based on drilling data, which comprises the following steps: S1, through analysis of regional geology, earthquakes anddrilling data, screening a drainage basin with geological conditions as an actual geological model, and quantitatively characterizing influence factors for controlling the debris flow channel siltation depth in the actual geological model; s2, based on the statistical sample data, establishing a quantitative relation between the sediment depth of the debris flow channel and the width of the debrisflow channel and the longitudinal slope of the channel, and analyzing the correlation; s3, screening abnormal points before the established calculation model, screening special samples such as drilling position offset debris flow channels, channel opening accumulation areas and the channel width abrupt change out, and completing sample data screening. The method solves the problem that the control precision of debris flow geological disasters and the initiative to cope with disasters cannot be improved by the conventional method.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
Precise dynamic outburst prevention method based on transparent space geophysics
InactiveCN107798189AAccurately eliminate outstanding risksSolve the problems existing in the anti-burst workForecastingDesign optimisation/simulationAnalysis dataData information
The present invention relates to a precise dynamic outburst prevention method based on the transparent space geophysics, and belongs to the field of mines. The method comprises: using the theoreticaltechnology of the transparent space geophysics to establish a spatial digital analysis model, combining with the modern high-precision geological prospecting technology and equipment to precisely identify and classify the regional geological structure of the mine, and determining the influence of coal and gas outburst key geological bodies on the gas occurrence; using a big data cloud computing technology to analyze the correlation between various factors, and precisely predicting the multi-indicator coupling of outburst risks in the coal seam area; and analyzing the correlation between data information, and establishing a scientific gas drainage model for mines according to specific procedures to achieve optimal scientific drainage of mines. According to the method provided by the presentinvention, parameters of each link in the outburst prevention process are dynamically managed in an online manner, comprehensive analysis is carried out in real time, the laws of coal and gas outburst are accurately grasped, and multiple precise measures are provided for dynamic outburst prevention, so that blindness of outburst prevention work is reduced, and the costs of outburst prevention engineering are saved.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
Large area penetrating goaf bag-type filling treating method by areas and by steps
ActiveCN106894838ARange of influence of control instabilityThe scope of the collapse effect is reducedMaterial fill-upRoom and pillar miningMedicine
The invention discloses a large area penetrating goaf bag-type filling treating method by areas and by steps. The filling treating method comprises the following steps that a, according to the occurrence situations of a goaf and ore pillars, the goaf is divided into partitions to be filled and blank leaving partitions; b, strip-shaped bag-type filling blocking walls are constructed on the outer periphery of the partitions to be filled; c, the partitions to be filled are filled by steps according to treating orders; and d, filling treating by areas and by steps of the goaf is completed. The technical problems that the blocking and filling treating process of the large area penetrating goaf cannot be controlled, the filling quality is poor and the treating effect is poor are solved. The potential safety hazard of the large area goaf can be eliminated by steps; the influence of the goaf on the earth surface and regional geologic environment can be controlled, and safety accidents caused by the goaf are avoided. The filling treating method is suitable for treating of large area penetrating goafs, especially for gently-inclined ore bodies, and treating of goafs exploited through a room-and-pillar method and a comprehensive method.
Owner:CHINA MINMETALS CHANGSHA MINING RES INST
Disaster-pregnant performance evaluation method for karst region inrush water disaster source
InactiveCN104615873ASimple designSpecial data processing applicationsTest analysisCorrelation function
The invention discloses a disaster-pregnant performance evaluation method for a karst region inrush water disaster source. The method includes the steps that identification indexes are selected, wherein a tunnel with disaster-pregnant performance needing to be identified is selected as an identification sample, and necessary parameters and optional parameters are selected according to practical engineering region geological surveying and underground water parameter test analysis; index weight calculation is conducted on the necessary parameters and the optional parameters one by one through a correlation function method, and the weights of the indexes are acquired; a single-index attribute measure function is established according to a single-index attribute measure function table, and a single-index attribute measure is calculated according to the weights of the indexes and the single-index attribute measure function which are acquired through calculation; a multi-index comprehensive attribute measure is calculated according to the single-index attribute measure; attribute identification analysis is conducted, wherein according to the multi-index comprehensive attribute measure, a proper confidence coefficient is selected, and the disaster-pregnant grade of practical engineering is acquired through calculation. Disaster-pregnant factors easy to acquire and measure serve as indexes for evaluating the disaster-pregnant performance of the inrush water disaster source, and the disaster-pregnant grade of practical engineering is quantitatively evaluated.
Owner:SHANDONG UNIV
Coal mine underground micro-seismic monitoring sensor arrangement method based on P-wave incident direction
ActiveCN111308559AEasy constructionMeet the project siteMining devicesSeismology for water-loggingEngineeringMechanical engineering
The invention provides a coal mine underground micro-seismic monitoring sensor arrangement method based on a P-wave incident direction, and belongs to the technical field of coal mine underground safety monitoring. The method comprises the following steps: determining a P-wave main incident direction of a micro-seismic event in a monitoring area according to a stress characteristic of a monitoringobject and a seismic source mechanism characteristic statistical law in the monitoring area; then establishing a two-dimensional area construction coordinate system and a layered stratum model conforming to geological characteristics of the monitoring area, and further establishing a ray path equation of P waves; substituting ray parameters, stratum parameters, wave velocity parameters and the like into a ray equation in sequence to obtain the optimal position of sensor arrangement in a coal seam medium; and finally, sequentially solving the sensor positions corresponding to other main incident directions of the P waves of all seismic sources in the monitoring area, and using the sensor positions as the optimal arrangement positions of the sensors in the three-dimensional monitoring area.The method is simple in calculation and accurate in result, and can be suitable for the design of the optimal position of the micro-seismic monitoring sensor of horizontal layered medium undergroundengineering such as coal mines.
Owner:SOUTHWEST UNIVERSITY
Regional geologic rock body fracture simulation method based on fractal algorithm
InactiveCN106529033ADesign optimisation/simulationSpecial data processing applicationsThree dimensional simulationGeomorphology
The invention discloses a regional geologic rock body fracture simulation method based on a fractal algorithm. The regional geologic rock body fracture simulation method comprises the following steps: firstly, partitioning a geologic body in a region alongside a tunnel into different regions according to property information of tunnel surrounding rocks; secondly, researching different regions respectively, and calculating fractal depths of the regions according to the surrounding rock property information of different regions; thirdly, determining an LS grammatical structure of a three-dimensional fracture according to on-site statistical information; and lastly, resampling a generated three-dimensional simulation fracture to generate a three-dimensional rock body fracture. Through adoption of the rock body fracture simulation method, the aim of manually controlling a fractal fracture tree form of the three-dimensional fracture is fulfilled by researching how to control the fracture tree form with a growth angle parameter alpha and probability control parameters U and V, how to draw the fractal fractures in different shapes of the three-dimensional fracture and how to adjust proportions of various fractal elements during generation of the fractal fractures; a parametric design of drawing the fractal fractures of the three-dimensional fracture with an LS grammar is realized through a program; and the three-dimensional fracture in an engineering region of the tunnel is simulated.
Owner:PLA UNIV OF SCI & TECH
Sandstone-type uranium mine early exploration rapid area selection method
The invention belongs to the field of sandstone-type uranium ore favorable zone prediction technology research, and particularly relates to a sandstone-type uranium ore early exploration rapid selection method. The method comprises the steps of 1, collecting and arranging research results and regional geological data of a working area, and defining a basin edge uranium-enriched basement and a rockmass distribution range; 2, determining stratum characteristics and uranium-bearing property of the working area, and determining a main ore-bearing target stratum; carrying out favorable sedimentaryfacies belt distribution characteristic research, and accurately positioning the spatial range of favorable mineralization lithology-lithofacies belt; 3, defining a favorable uranium mineralization age, defining ancient landform characteristics of a favorable mineralization period of an ore-bearing target stratum, and defining the distribution position of a sandstone type confluence channel in the working area; and 4, quickly selecting a favorable exploration area.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
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