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32 results about "Poikilitic" patented technology
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Poikilitic texture refers to igneous rocks where large component crystals contain smaller crystals of other minerals within them. In poikilitic rocks, the contained smaller crystals are termed 'chadacrysts' and the larger phenocrysts are termed 'oikocrysts'. A poikilitic texture is most easily observed in petrographic thin sections.
Volcanic zone fault sealing comprehensive evaluation method
InactiveCN104914481ASure objectiveReduce uncertaintyGeological measurementsFracture zoneWeight coefficient
The invention discloses a volcanic zone fault sealing comprehensive evaluation method specifically based on Karamay oilfield volcanic rock development area. A volcanic zone fault sealing forming mechanism is mainly lithologic opposition and diagenesis. A lithologic opposition characteristic can be reflected in the aspect of the difference between the density of rock stratums on both sides. The diagenesis of a fault zone is affected by cross section pressure, closeness and the like. Through the filling of argillaceous debris and the injection of late fluid, the fault zone is strongly closed. According to the invention, a concept model of fault plane density difference is established; a variety of parameters (cross section normal stress, closeness index and the like) are combined to evaluate diagenesis closeness and docking closeness; closeness influence factors are induced; a weight factor is proposed; through a weight coefficient, a mathematical model is built to acquire a comprehensive factor; and the fault sealing is comprehensively evaluated. According to the invention, a variety of geological factors are considered; accurate requirements of fault sealing quantitative evaluation can be met; and the method can be widely applied to the field of oil and gas resource geological exploration and development evaluation.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Method for correcting porosity of volcanic rock suffered from clay alteration
ActiveCN107829731ASolve the difficulty of high porosityHigh precisionBorehole/well accessoriesPorosityRock core
The invention discloses a method for correcting the porosity of a volcanic rock suffered from clay alteration. The method comprises the following steps: selecting a representative volcanic rock core,determining whether there are alterations and alteration types, and measuring the conventional porosity and clay content of the rock core suffered from clay alteration; analyzing the response characteristics of the volcanic rocks suffered from clay alteration on conventional logging curves, and selecting four conventional logging curves which are sensitive to clay alteration; considering the weight of influence of each curve and determining formula combination forms so as to construct a curve which can comprehensively reflect clay alteration degree of the volcanic rock through a sensitive logging curve; constructing a target stratum clay content calculation model through the clay content and the calculated alteration degree curve obtained from the whole rock mineral analysis; and finally correcting the porosity of the volcanic rock suffered from clay alteration by the physical model of the study area in combination with clay content curves. The method achieves continuous correction ofthe porosity of the volcanic rock suffered from clay alteration and improves the calculation accuracy of the porosity of the volcanic rock suffered from clay alteration.
Owner:PETROCHINA CO LTD
Association type high-temperature resistant fracturing fluid suitable for volcanic rock fracture
The invention provides an association type high-temperature resistant fracturing fluid suitable for volcanic rock fracture. The fracturing fluid comprises two parts, namely a base liquid and construction additives. The base liquid comprises following components by weight: 0.5-0.9% of a thickening agent and 0.2-0.3% of a flow promoter, with the balance being water. The construction additives comprise a thickening auxiliary agent and a gel breaker. The thickening auxiliary agent is 0.25-0.45% by weight of the base liquid. The gel breaker is 0.02-0.05% by weight of the base liquid. The fracturing fluid belongs to supramolecular structure fluids, and has good viscoelasticity, thus achieving viscoelastic sand carrying. The fracturing fluid has characteristics of capability of being clean and free of residue, good temperature resistance, shearing resistance, shearing dilutability, and the like. During fracturing construction, the fracturing liquid can reduce friction so as to reduce the construction pressure, and the fracturing liquid is low in harm to a reservoir stratum, thus increasing the success rate of fracturing construction, improving fracturing effects, and increasing the productivity of the reservoir stratum. The fracturing liquid is suitable for fracturing transformation of a volcanic rock reservoir stratum.
Owner:CHINA PETROLEUM & CHEM CORP +2
Modified composite iron-manganese removal filtering material and preparation method thereof
InactiveCN106799203AIncrease surface areaControl changesOther chemical processesWater contaminantsManganeseMaterials science
The invention relates to a modified composite iron-manganese removal filtering material and a preparation method thereof. The filtering material comprises the following components in parts by weight: 15-20 parts of modified volcanic, 10-15 parts of modified medical stone, 60-70 parts of quartz sand, 10-20 parts of modified active carbon and 8-10 parts of kaolin. In the invention, by adopting the modified volcanic, modified medical stone, quartz sand and modified active carbon as raw materials and through a special modifying technology, the surface area of the volcanic, medical stone, quartz sand and active carbon is expanded, and the effective adsorption rate is increased; on the one hand, the limit of traditional iron-manganese removal technology on manganese sand is changed, and the water treatment cost is effectively lowered; on the other hand, by adopting the composite, the specific gravity of the filtering material can be effectively lowered, and the water consumption for back flushing and the regeneration difficulty are effectively reduced; and compared with the manganese sand filtering material and quartz sand filtering material, the adsorption quantity is remarkably increased, and the operation time is noticeably prolonged.
Owner:云南沃润特环境工程有限公司
Artificial porous volcanic rock plate and preparation method thereof
InactiveCN110436843AWide variety of sourcesIncrease productivityCeramicwareColor differenceFlexural strength
The invention relates to the technical field of artificial stone, and discloses an artificial porous volcanic rock plate and a preparation method thereof, wherein the artificial porous volcanic rock plate comprises, by weight, 600-920 parts of inorganic active powder having an average particle size of 5-40 [mu]m, 900-1200 parts of sand having a particle size of not more than 4.75 mm, 36-90 parts of ice cubes, 14-20 parts of a high-performance admixture, 5-10 parts of pigment powder, 0.01-0.05 part of a retarder, and 10-20 parts of a water repellent agent, and a water-to-gel ratio is 0.2-0.25.According to the present invention, the artificial porous volcanic rock plate has characteristics of realistic effect, low water absorption rate, light weight, bright color, acid resistance, alkali resistance, corrosion resistance, good decoration effect, low price and the like, has a compressive strength of greater than 100 MPa and a bending strength of greater than 14 MPa, and can solve the problems of poor mechanical properties and poor durability of natural volcanic rock materials; the method has characteristics of wide raw material source and high production efficiency, can achieve industrial production, and can solve the problems of limited resources and high cost of natural volcanic rock plates; and the obtained product can solve the problems of color difference and not bright colorof natural volcanic rock plates, and improve the decorative effect of inorganic decoration plates.
Owner:黄贺明
Method and device for judging effluent of medium-base volcanic bound water
PendingCN112049623AAccurate ExplorationHigh pore structure complexityPermeability/surface area analysisBorehole/well accessoriesRock coreBound water
The invention discloses a method and a device for judging effluent of medium-base volcanic bound water. The method comprises the steps that a measurement result of a target rock core is acquired, wherein the target rock core is a rock core of to-be-detected medium-basic volcanic rock, and the measurement result is result data obtained by measurement of nuclear magnetic porosity and T2 cut-off values of the target rock core; nuclear magnetism movable bound water saturation and nuclear magnetism porosity of the target rock core are determined according to the measurement result; and the nuclearmagnetism movable bound water saturation and the nuclear magnetism porosity of the target rock core are judged according to a preset relational expression to determine whether the effluent of the to-be-detected medium-base volcanic rock exists or not, and the preset relational expression is used for representing a linear relationship between the nuclear magnetism movable bound water saturation andthe nuclear magnetism porosity. According to the method, the problem that volcanic rock and other complex stratums cannot be accurately explored in related technologies is solved.
Owner:PETROCHINA CO LTD
Detection method of shallow interface between volcanic rock and granite
InactiveCN104076386AImprove consistencyMeet the evaluation requirements of different buried depthsSeismologyLongitudinal waveGranolithic
The invention relates to a detection method of the shallow interface between volcanic rock and granite. The method sequentially comprises the following steps that firstly, nearby the insidious interface between the volcanic rock and the granite, the velocity of longitudinal waves and the velocity of transverse waves are obtained through seismic waves generated due to excitation of an artificial seismic source; secondly, a first parameter, a second parameter and a Poisson ratio parameter are obtained, wherein the first parameter is a difference between the square of the velocity of the longitudinal waves and the square of the double velocity of the transverse waves, the second parameter is a difference between the square of the double velocity of the longitudinal waves and the square of the velocity of the transverse waves, and the Poisson ratio parameter is obtained by dividing the first parameter by the second parameter; thirdly, a Poisson ratio parameter low-value range from 0.10 to 0.23 is selected to represent the volcanic rock, and a Poisson ratio parameter high-value range from 0.24 to 0.31 is selected to represent the granite. According to the method, influences of a part of interference factors are reduce, the form of the interface between the volcanic rock and the granite is sketched, and a basis is provided for rock mass evaluation of high-level radioactive waste geological disposal.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
Nuclear magnetism and resistivity combined inversion water saturation method based on new three-water model
PendingCN114035236ASolve the acquisition problemGood application effectElectric/magnetic detection for well-loggingWater resource assessmentWater modelGeophysics
The invention provides a nuclear magnetism and resistivity combined inversion water saturation method based on a new three-water model, and relates to the technical field of volcanic rock reservoir detection, and the method comprises the following steps: 1) building a T2-I model suitable for volcanic rock according to rock electricity experiment data, nuclear magnetism experiment data, the new three-water model and a fractal theory. According to the nuclear magnetism and resistivity combined inversion water saturation method based on the new three-water model, the influence of different aperture ranges on model parameters is considered, the fractal theory is introduced, the problem of solving related parameters in different aperture ranges is successfully solved, the calculated water saturation is closer to a real measured value, and the method has a good application effect in the volcanic reservoir, overcomes the defect that the water saturation of the volcanic reservoir is rarely researched in the previous research, and solves the problem that the influence of the difference of different aperture ranges on model parameters is not considered in the volcanic reservoir in the prior art.
Owner:JILIN UNIV
Deodorizing filler for biofilter
PendingCN111172149AImprove adsorption capacityLarge specific surface areaDispersed particle separationOn/in inorganic carrierExpanded clay aggregateBiofilter
The invention discloses a deodorizing filler for a biofilter. The deodorizing filler comprises a bottom layer, an intermediate layer and a top layer which are arranged from bottom to top, wherein thebottom layer is formed by accumulating volcanic rocks having the diameter of 5-8cm; the intermediate layer is formed by mixing the following materials in percentage by weight: 5-10 percent of stone grains, 30-40 percent of ceramsites, 15-20 percent of glass reinforced plastic blocks having the surface coated with a nano-particle layer, 20-30 percent of peat soil and 10-15 percent of volcanic rockshaving the diameter of 2-3cm; and the top layer is formed by accumulating glass reinforced plastic blocks having the surface coated with a nano-particle layer. The deodorizing filler has the advantages that the three-layer structure mode has strong adsorbability and large specific surface area, favors microbe growth and reproduction and odor adsorption, has high structural strength and long service life and can achieve the aim of waste utilization.
Owner:GUANGZHOU NEWEARTH ENVIRONMENTAL PROTECTION IND
Composition for enhancing traction on ice and snow
InactiveUS20170166791A1Efficient use ofGreat tractionOther chemical processesLime coatingsSnowpackEngineering
A composition of matter enhances friction of a surface covered with snow or ice. The composition includes particles of limestone and particles of volcanic rock, the particles having a size in a range of about 0.125-1.0 inches, and more preferably 0.125-0.25 inches. Limestone is present in the composition in a percentage of about 53-67%, by weight, and volcanic rock is present in a percentage of about 33-47%, by weight. The components are thoroughly mixed to form a homogeneous mixture. When the composition is applied to a snow-covered or ice-covered surface, the coefficient of friction of the surface increases so much that the surface can be considered a “non-slip” surface.
Owner:GREENWALD STEVEN
Method for identifying ultra-deep volcanic rock
ActiveCN112394394AImprove recognition accuracyAbnormal enhancementSeismic signal processingAlgorithmPrincipal component analysis
The invention discloses a method for identifying an ultra-deep volcanic rock, and the method comprises the following steps: carrying out lateral mandatory filtering of a seismic data volume of a volcanic development zone, and highlighting the discontinuity of a longitudinal seismic data volume; with a principal component analysis data fusion method, enhancing abnormal characteristics of the volcano channel; carrying out chaotic attribute processing on the reflection clutter features to obtain a chaotic reflection value; performing lithofacies prediction on the chaotic reflection value throughclustering analysis; processing the chaotic reflection value by adopting a K-prototype algorithm to obtain a lithofacies classification result; and identifying a volcanic rock by integrating volcanicchannel abnormal characteristics and lithofacies classification results. The geological meaning multiplicity of the earthquake anomalous body is reduced, the ultra-deep volcanic rock identification method is provided, and the identification precision of the ultra-deep volcanic rock reservoir is greatly improved.
Owner:CHINA PETROLEUM & CHEM CORP +1
Volcanic glaze and rock plate
The invention relates to the technical field of architectural ceramics, and particularly discloses a volcanic glaze and a rock plate. The volcanic glaze comprises the following components by weight: 20-35 parts of potassium feldspar; 10 to 20 parts of albite; 8-12 parts of washed kaolin; 5-8 parts of calcined kaolin; 5-8 parts of calcined talc; 3-5 parts of zinc oxide; 1-3 parts of aluminum oxide; 8-10 parts of barium carbonate; 2-5 parts of corundum; 8-10 parts of dolomite; and 10-15 parts of pearlescent frit. The glaze disclosed by the invention is applied to the rock plate, the glossiness of the rock plate is between 8 and 10 degrees after the rock plate is fired, the whole rock plate has soft light texture, such as special waxy gloss of volcanic rock, fine and smooth touch feeling and some retardation feeling when being touched, so that the rock plate has more real and natural volcanic rock texture.
Owner:广东新岩素智能家居科技有限公司
Mineral substance volcanic rock fire-resistant bus
PendingCN113880496ASolve problems that cannot adapt to various environmentsExtended service lifeInsulated cablesCable/conductor manufactureFirming agentPhysical chemistry
The invention discloses a mineral substance volcanic rock fire-resistant bus which is prepared by the following steps: preparing the following raw material components: 20-30 kg of epoxy resin, 10-15 kg of a curing agent, 20-30 kg of volcanic rock, 20-30 kg of zirconium dioxide powder, 20-30 kg of chromic oxide powder and 10-15 kg of quartz sand; the mineral substance volcanic rock is formed by mixing the epoxy resin, the curing agent, the volcanic rock, the zirconium dioxide powder, the chromic oxide powder and the quartz sand; the mineral substance volcanic rock is used for protecting the fire-resistant bus, so that the mineral substance volcanic rock is resistant to fire, and after the fire-resistant bus is formed by mixing the epoxy resin, the curing agent, the volcanic rock, the zirconium dioxide powder, the chromic oxide powder and the quartz sand and is combusted for three hours, the fire-resistant bus can be normally electrified only by spraying for 15 minutes for heat dissipation, and the fire-resistant effect is achieved; and the fire-resistant bus can operate in water throughout the year, can also normally work in extremely cold weather of minus 110 DEG C, and can work for a long time in severe environments such as acid and alkali.
Owner:江苏盈聚电气有限公司
Coarse-grained pyroclastic rock identification method and device, and electronic equipment
ActiveCN110837114AAccurate identificationImprove reliabilitySeismic signal processingElectric/magnetic detectionWell loggingPyroclastic rock
Owner:PETROCHINA CO LTD
Rock physical modeling method and device
The invention discloses a rock physical modeling method and device. The method comprises the steps that: volcanic rock mineral component content is obtained, and the elastic modulus of a mixed mineral is calculated based on the volcanic rock mineral component content; pore parameters of various pores are determined based on the pore types in volcanic rock, the pore parameters include porosity and pore aspect ratio; pores are added into a rock matrix based on the pore parameters of various pores of the volcanic rock, and the bulk modulus and shear modulus of a dry rock skeleton are calculated; and a volcanic rock physical model is established based on the elastic modulus of the mixed mineral, the bulk modulus of the dry rock skeleton and the shear modulus. With the rock physical modeling method and device of the invention adopted, the technical problem that the rock physical model of the volcanic rock is difficult to establish due to the fact that the volcanic rock reservoir has the characteristic of heterogeneity in the prior art is solved.
Owner:PETROCHINA CO LTD
Volcanic rock identification method and system based on Internet of Things, terminal and medium
ActiveCN111982743AAccurate identificationImprove work efficiencyPermeability/surface area analysisSpecific gravity measurementSolid componentPore distribution
The invention discloses a volcanic rock identification method based on the Internet of Things. According to the technical scheme, the volcanic rock identification method is characterized by comprisingthe steps that multiple sets of images of a target object at different collection angles are acquired; carrying out image processing on the plurality of groups of images and then constructing a three-dimensional model of which the surface is composed of a plurality of grid planes; extracting pore distribution information and pore brightness information of the surface layer of the target object according to the multiple groups of images, and performing pore mapping processing on the three-dimensional model according to the pore distribution information; calculating the simulation volume and the pore distribution area of the target object according to the three-dimensional model; calculating a pore average depth value according to the pore brightness information, calculating a pore ratio ofthe surface layer of the target object by taking the depth value as a standard, and calculating the pore ratio of the whole target object in combination with the simulated volume; obtaining the weight value of the target object, and calculating the average density of the solid components according to the weight value and the volume of the solid components; and judging the category of the target object according to the average density distribution range of the entity components to obtain an identification result. And the volcanic rock category can be quickly and accurately identified.
Owner:CHANGCHUN INST OF TECH
Pretreatment method of volcanic rock type uranium ore with high acid consumption and difficult leaching
ActiveCN112156884AImprove leaching rateSuppressed flotationWet separationUraninitePretreatment method
The invention discloses a pretreatment method of volcanic rock type uranium ore with high acid consumption and difficult leaching, and belongs to the technical field of ore dressing. The method comprises the steps that the volcanic rock type uranium ore is subjected to gravity separation first, thus uranium concentrate with brannerite as the main component is obtained, gravity separation tailingsare subjected to a foam flotation method, and then uranium concentrate with uraninite as the main component is obtained. According to the mineral composition and crystal phase characteristics of the volcanic rock type uranium ore, the method combining gravity separation and flotation is adopted, the brannerite and uraninite are separately and efficiently recycled, and mineral separation of acid-consuming gangue is realized. The concentrate yield of the brannerite is 13.98%, the uranium grade is 1.053%, the recycling rate is 48.22%, the distribution rate of the brannerite is 87.57%, the flotation concentrate yield of the uraninite is 9.74%, the uranium grade is 1.375%, the recycling rate is 43.87%, different uranium ores are separately recycled, thus the method is beneficial to subsequent uranium recycling by adopting different leaching methods, the betafite which is difficult to leach can be subjected to pressure leaching, the uraninite can be directly leached by adopting conventionalagitation, and with the pretreatment method, the production cost can be effectively reduced while the leaching rate of uranium is improved.
Owner:BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
Identification method of neutral volcanic-andesite
ActiveCN111189830AAccurate identificationRapid identificationInvestigating crystalsBasaltic andesiteClassical mechanics
The invention relates to an identification method of neutral volcanic-andesite. The identification method comprises the following steps: finding a to-be-detected plagioclase from a rock slice under anorthogonal polarizing microscope; respectively testing extinction angles of two groups of bicrystal monomers of the plagioclase to be tested; if the difference between extinction angles of the two groups of bicrystal monomers is less than 5 degrees, considering that the section of the plagioclase to be tested is the section of the inverted-T (010) bicrystal junction surface, and taking the average value of the extinction angles of the two groups of bicrystal monomers, namely the maximum extinction angle phi max of the inverted-T (010) section; if the difference between the extinction angles obtained in the two times is greater than 5 degrees, taking the average value of the extinction angles of the two groups of bicrystal monomers as a visual extinction angle phi '; and at the moment, ifthe apparent extinction angle phi' of the meso-clinic stone is smaller than 24 and the bicrystal width c is smaller than 0.029777 mm when the section is beveled into the bicrystal surface, the meso-clinic stone can be determined as the meso-clinic stone, and the rock sample is the neutral volcanic-andesite. Neutral volcanic rock-andesite can be quickly and accurately distinguished from basic volcanic rock-basalt and transition rock-basaltic rock-basaltic rock, and the identification accuracy is high.
Owner:山东省地质矿产勘查开发局第一地质大队
Method for predicting volcanic rock high-quality reservoirs step by step
InactiveCN111474601AReduce ambiguityImprove heterogeneityGeological measurementsWell drillingGeophysics
The invention provides a method for predicting volcanic rock high-quality reservoirs step by step. The method comprises the following steps: (1) finely depicting the distribution range of a structurefavorable area; (2) comprehensively identifying the distribution range of the favorable lithofacies; and (3) predicting the volcanic rock fracture development degree and distribution range. From an actual drilling result, a favorable reservoir development area identified by using a step-by-step control high-quality reservoir prediction technology has a good matching relationship with a drilling result. Exploration practice proves that the thought and the technology for predicting the high-quality reservoir are practical and feasible, and are worthy of popularization and application in similarregions.
Owner:PETROCHINA CO LTD
Method for analyzing development characteristics and distribution rules of permo-Ordovician volcanic rocks in Shuntuogole region
The invention provides a method for analyzing development characteristics and distribution rules of permo-Ordovician volcanic rocks in a Shuntuogole region. The method comprises the following steps: S1, dividing single-well stages of volcanic rocks in a research region and establishing a rock-electricity relationship chart; S2, carrying out lithology interpretation and seismic fine calibration interpretation of all single-well volcanic rocks in a three-dimensional area; and S3, establishing a volcanic rock development mode, and summarizing volcanic rock development characteristics and distribution rules of the research area. The method provided by the invention provides a technical support for the distribution detection of the Taran Ordovician oil reservoir in the Shuntuogole region.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
Fractured volcanic rock stratum return-loss leakage plugging method
PendingCN114075943ASolve the problem of poor plugging effect of lost return leakageDrilling compositionSealing/packingWell drillingSlurry
The invention provides a fractured volcanic rock stratum return-loss leakage plugging method. The invention discloses a fractured volcanic rock stratum return-loss leakage plugging method. The method comprises the following steps of collecting leakage data of a leakage well, and determining a leakage type of the leakage well according to the leakage data; plugging slurry being prepared; evaluating the indoor leaking stoppage effect by using a leaking stoppage instrument; pulling out a hole and putting a polished drill rod, putting a drilling tool to the bottom of a leakage layer of the leakage well, filling drilling fluid in an annular space, and pumping leakage stopping slurry; and pulling out the hole to the upper liquid level of the special plugging slurry, closing the blowout preventer, and pressurizing to squeeze the plugging slurry into the leakage layer till the drilling parameters all meet the drilling design requirements. The method effectively solves a problem of poor return-loss leakage stoppage effect of volcanic fractured formation in the prior art.
Owner:PETROCHINA CO LTD
A Method for Determining the Fracturing Scale of Volcanic Reservoir
ActiveCN104712301BFrac design time reductionReduce professional requirementsFluid removalVolcanic GasesPrincipal stress
The invention discloses a method for determining the fracturing size of a volcanic reservoir. The method comprises the following steps of collecting minimum principal stress curve lines, determining perforation intervals, carrying out statistics on sand proportion data and formation testing result data, forming a board chart, and determining the sand proportion limit of the reservoir. The method improves the efficiency for predicating the fracturing size on site, and reduces the difficulty for predicating the fracturing size of a volcanic gas reservoir, requirements for technicians are relatively low, and the working efficiency and the economic benefit are improved.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Volcanic rock high-porosity low-permeability reservoir reserve calculation method based on multi-factor permeability
ActiveCN113109888ACalculation method is simpleIn line with the actual situationGeological measurementsSoil scienceRock core
The invention discloses a volcanic rock high-porosity low-permeability reservoir reserve calculation method based on multi-factor permeability. According to the method, logging data, coring data and geological data of a target well are utilized, the porosity and permeability of a core of the target well are measured, a porosity and permeability cross plot is drawn, the relation between the porosity and the permeability in the target well is established, the influence of a high-porosity and low-permeability reservoir on reserve calculation is analyzed, and then the influence of a pore structure on seepage characteristics is anlayzed according to a scanning electron microscope graph of the core of the target well, the reserves of a target well is calculated by using single-factor permeability and multi-factor permeability based on a volumetric method, reserves calculation results adopting the single-factor permeability and the multi-factor permeability are compared, the difference of calculation results of different reserves calculation lower limits is analyzed, and the accuracy of reserve calculation of the multi-factor permeability is verified by using a high-porosity and low-permeability reservoir in the target well. According to the method, the influence of the complex diagenesis on volcanic high-porosity low-permeability reservoir reserve calculation is comprehensively considered, and the calculation precision of the reserves can be improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1
A Porosity Correction Method of Clay Altered Volcanic Rocks
ActiveCN107829731BSolve the difficulty of high porosityHigh precisionBorehole/well accessoriesPorosityRock core
Owner:PETROCHINA CO LTD
Volcanic rock geologic body lithology detection device and method based on computer big data
InactiveCN112763689AImprove adsorption capacityImprove sampling efficiencyMaterial analysis by observing effect on chemical indicatorEarth material testingLithologyPhysical chemistry
The invention discloses a volcanic rock geologic body lithology detection device and method based on computer big data, and belongs to the field of lithology detection. According to the scheme, porous adsorption balls in a detection pipe enter a volcanic rock along gaps of the volcanic rock through the flow direction of guiding liquid, a water-soluble sealing layer rubs with the interior of the volcanic rock, melts and falls off, volcanic rock internal substance components are swept to the outer sides of the porous adsorption balls through the adsorption fibers, after abrasion of abrasion blocks at the outer ends of the porous adsorption balls and the interior of volcanic rock disappears, air enters the spherical adhesion net through the magnetic powder, negative pressure is generated, volcanic rock substances enter the interior of the porous adsorption balls through the negative pressure, the volcanic rock substances enter the interior of the porous adsorption balls, the adsorption effect of the porous adsorption balls is improved, the porous adsorption balls are not prone to falling off from the outer side of the porous adsorption balls, substance components in volcanic rock are not prone to falling off from the outer ends of the porous adsorption balls, and the volcanic rock sampling efficiency and detection quality of the porous adsorption balls are improved.
Owner:CHANGCHUN INST OF TECH
A reserve calculation method for volcanic high-porosity and low-permeability reservoirs based on multi-factor permeability
ActiveCN113109888BCalculation method is simpleIn line with the actual situationGeological measurementsPorositySoil science
The invention discloses a method for calculating reserves of volcanic rock high-porosity and low-permeability reservoirs based on multi-factor permeability. The present invention utilizes the well logging data, coring data and geological data of the target well, and by measuring the porosity and permeability of the core of the target well, draws a pore-permeability intersection diagram, establishes the relationship between the porosity and permeability in the target well, and analyzes the porosity and permeability of the target well. The impact of seepage reservoirs on the calculation of reserves, and then according to the scanning electron microscope image of the core of the target well, the influence of pore structure on the seepage characteristics is analyzed, and the reserves of the target well are calculated using the single-factor permeability and multi-factor permeability based on the volumetric method. Based on the reserve calculation results of factor permeability and multi-factor permeability, the difference in the calculation results of different reserve calculation lower limits is analyzed, and then the high-porosity and low-permeability reservoir in the target well is used to verify the accuracy of reserve calculation based on multi-factor permeability. The invention comprehensively considers the influence of complex diagenesis on the calculation of reserves of volcanic high-porosity and low-permeability reservoirs, which is beneficial to improving the calculation accuracy of reserves.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1
A method for identifying volcanic rock lithology based on characteristic parameter curves of acoustic wave and resistivity
ActiveCN110346416BImprove visibilityFit closelyAnalysing solids using sonic/ultrasonic/infrasonic wavesMaterial resistanceLithologyAcoustic wave
The invention relates to a method for identifying volcanic rock lithology based on characteristic parameter curves of acoustic waves and electrical resistivity, comprising the following steps: (1) acquiring the acoustic time difference curve of the volcanic rock to be identified; (2) acquiring the electrical resistivity curve of the volcanic rock to be identified; 3) Mathematical operation is performed on the acoustic time difference curve obtained in step (1) and the resistivity curve obtained in step (2) to obtain a characteristic parameter curve. The method for identifying the lithology of volcanic rocks based on characteristic parameter curves of acoustic waves and resistivity disclosed by the present invention has the following beneficial effects: 1. Improve the identification degree of volcanic rock lithology in the vertical direction, and have a good agreement with cuttings logging; 2. Improve the lithology of volcanic rocks It improves the convenience and objectivity of volcanic rock lithology identification.
Owner:北京金海能达科技有限公司 +1
Volcanic rock oil and gas reservoir development method and volcanic rock compressibility obtaining device
PendingCN114112831AIncrease oil and gas productionMaterial strength using tensile/compressive forcesFluid removalRock coreGeophysics
The invention provides a volcanic rock oil and gas reservoir development method and a volcanic rock compressibility obtaining device, and belongs to the technical field of oil and gas field development. According to the technical scheme provided by the embodiment of the invention, the rock core of each layer section in the oil and gas reservoir is obtained, the pressure and temperature conditions of the stratum where the rock core is located are simulated, then the rock core is fractured, and the initial permeability and the fractured permeability of each rock core are obtained respectively; and the compressibility can reflect the complexity of forming a fracture network after the rock core is fractured, so that development measures are selected for different layer sections according to the compressibility, the layer sections with good compressibility can be preferentially selected for exploitation, and the exploitation efficiency is improved. And construction measures suitable for different layer sections can be formulated for the layer sections, so that the oil and gas yield of volcanic rocks is increased.
Owner:PETROCHINA CO LTD
Multi-flow secondary flow speckle rock identification method based on geological survey
PendingCN114384602AImprove recognition accuracyLow costEarth material testingOptically investigating flaws/contaminationMetallogenyGeological survey
The invention belongs to the field of uranium ore geological exploration, and particularly discloses a geological survey-based multi-flow secondary flow speckle rock identification method, which comprises the following steps of: (1) carrying out regional geological survey and effective information extraction; (2) carrying out petrology and mineralogy research on the target rock mass; (3) surveying the occurrence of the target rock mass; (4) surveying the characteristics of the contact zone of the rock stratum system; and (5) comprehensively analyzing and identifying the secondary flow speckle rock mass. According to the method, accurate identification of the secondary flow speckle rock can be realized; the problem that in volcanic rock type uranium ore exploration, secondary flow speckle rocks closely related to uranium mineralization cannot be accurately recognized, and consequently the uranium mineralization potential is inaccurately evaluated is effectively solved.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
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