495 results about "Volcanic rock" patented technology

The invention relates to a method for identifying the lithology of volcanic rock. The method comprises the following steps of: determining the types of rock needing lithological identification; calculating the content of each element in stratigraphic rock in percentage by weight by using the theory of oxygen closed mold on the basis of elemental capture spectroscopy logging information; classifying the lithology of volcanic rock by using a silicon-alkali classification method; extracting the rock structure information of different classes of lithology of volcanic rock on the basis of imaging logging information in combination with oilfield on-site coring analysis and geologic description; combining the rock components calculated according to elemental capture spectroscopy logging with therock structure information determined according to the imaging logging information together and converting a TAS two-dimensional plane into a three-dimensional plane by using the rock structure information as a third dimension scale; and realizing three-dimensional volcanic rock lithological identification by using an SVM (Support Vector Machine) method. By adopting the method, the coincidence rate of lithological identification can be improved to reach more than 90%, which is 10 times that of the traditional method.

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.

The invention relates to a method for predicting volcanic rock facies, and relates to the technical field of petroleum exploitation reservoir engineering. The method comprises the following steps: (1) forward modeling, (2) seismic attribute extraction, (3) attribute optimization, (4) volcanic rock facies classification, (5) multi-attribute neural network pattern recognition and (6) rock facies prediction, wherein in the step of forward modeling, profile forward modeling is performed on the basis of seismic geologic horizon calibration; in the step of seismic attribute extraction, horizon-oriented seismic attributes are extracted in allusion to a target horizon, and an attribute time window range is determined; in the step of attribute optimization, seismic attributes reflecting volcanic rock distribution are optimized, and preprocessing is performed; in the step of volcanic rock facies classification, category classification is performed on the volcanic rock facies according to a well drilling result; and in the step of rock facies prediction, a plurality of seismic attributes are fused according to neural network parameters acquired by training, and a distribution variation law of the volcanic rock facies in an unknown area is predicted. The prediction method provided by the invention fuses multiple seismic attributes and well drilling information, overcomes the defect that a single seismic attribute only partially reflects the lithological combination difference, and can effectively predict spatial distribution of the volcanic rock facies.

The invention relates to the technical field of oil reservoir productivity prediction, in particular to a prediction method for volcanic rock oil reservoir productivity. The prediction method comprises the following steps: step one, collecting the oil reservoir basic parameters of oil reservoirs or similar oil reservoirs of tested oil wells in target blocks, including individual well productivity Q, perforation reservoir thickness h, crude oil volume factor B0, comprehensive skin factor s, perforation productivity ratio PR, starting pressure gradient lambda, after-pressing well testing permeability Ks, formation pressure pe, flowing pressure pw, wellbore radius rw, fluid viscosity u, and fracturing fracture length, wherein the unit of the after-pressing well testing permeability Ks is mD, the units of the formation pressure Pe and the flowing pressure Pw are MPa, the unit of the wellbore radius rw is m, and the unit of the fluid viscosity u is MPa*s. Compared with an existing analogy method, the prediction method is more targeted, and the precision is higher, the precision can be improved to 60% above through the method disclosed by the invention, and a good method is provided for exploration oil testing, layer selection and the like.

The invention provides a gas layer and water layer recognition method for a low-porosity and low-permeability reservoir, belonging to the field of oil exploration and development. According to the porosity logging measurement principle, through analyzing factors affecting the logging porosity curve value, the method for recognizing gas layer and water layer in high-salinity mud filtrate and low-porosity and low-permeability gas reservoir is provided by the invention. The gas layer and water layer recognition method based on a low-porosity and low-permeability reservoir provided by the invention is easy to implement, has high operability and is intuitive and clear in recognition; the accuracy of gas layer fluid recognition can be improved greatly while the cost is lowered by utilizing the method provided by the invention; and the method has a wide application range in field practice, and the method has great operability for either low-porosity and low-permeability volcanic rocks or carbonate and sand shale.

The invention discloses a method and a device for volcanic rock crack quantitative prediction. The method for volcanic rock crack quantitative prediction comprises steps of obtaining drilling well rock core data, imaging well logging data and logging curves, generating single well crack density indication curves according to the drilling well rock core data, imaging logging data and logging curves, establishing an oil reservoir three dimensional geology model, extracting geology attribute reflecting cracks from the oil reservoir three dimensional geology model and extracting earth physics attribute reflecting cracks from earthquake data, performing correlation discrimination and generating a pre-judging result according to the single well crack density indication curve, the geology attribute and earth physics attribute, wherein the pre-judging result comprises some kinds of crack attributes, the crack correlation of which is greater than a preset vale, performing crack distribution simulation in a three dimensional space according to the pre-judging result, calculating the continuous distribution model of the three dimensional space and performing quantitative prediction on the crack between wells. The method and device for volcanic rock crack quantification prediction disclosed by the invention can realize the quantitative prediction of the crack between wells and can quickly and accurately determine the favorable task during the volcanic rock oil reservoir exploration and development.

The invention belongs to the field of treatment and regeneration of urban sewage, and provides a quick starting method for a technology for simultaneous denitrification and COD removal under the condition of normal-temperature and low-C/N sewage. The method comprises the steps as follows: firstly inoculating some mature CANON sludge, and enabling the CANON sludge to perform biofilm culturing on volcanic rock filtering material, and quickly constructing an aerobiotic AOB and anammox oriented microbial system; then reducing the inflowing water substrate concentration and adjusting the aeration and hydraulic retention time, so as to improve the nitrogen removal load, and realize the high-load stable operation of the CANON technology under the condition of a medium ammonia nitrogen substrate; finally adding an organic carbon source into the inflowing water, performing heterotrophy for the growth of denitrifying bacteria, and controlling the temperature, free ammonia, aeration and other conditions, so as to optimize the aerobiotic AOB, anammox and denitrifying bacteria coexisted micro-environment, and successfully start an SNAD technology. According to the invention, the difficult problems that a large amount of organic carbon sources are required to be added for biological denitrification in the long term and the cost is prodigious are solved, and a method is provided for starting of the SNAD technology under the condition of normal-temperature and low-C/N simulated wastewater.

The invention discloses a method for confirming the reservoir forming time of a volcanic rock type oil and gas reservoir. The method comprises the following steps: firstly, selecting an experimental sample; secondly, simulating a thermal history of the volcanic rock reservoir; thirdly, confirming a reservoir forming stage of the volcanic rock type oil and gas reservoir; fourthly, confirming the reservoir forming time of the volcanic rock type oil and gas reservoir. The method indirectly obtains the reservoir forming time of the volcanic rock type oil and gas reservoir on the basis of research on the thermal evolution history of the volcanic rock reservoir and a fluid inclusion forming stage, eliminates influence of volcanic rock diachronism, burial history, thermal history, reservoir forming history and the like on confirmation of the reservoir forming time of the volcanic rock type oil and gas reservoir, improves the accuracy for confirming the reservoir forming time of the volcanic rock type oil and gas reservoir, and provides more accurate guidance on exploration and development of volcanic rock type oil and gas.

The disclosed invention relates to the use of a volcanic rock mined from an unwelded ash flow tuff to remove toxic metals from contaminated aqueous solutions. The material adsorptive properties can also be enhanced using a combination of zero valent iron, oxidized iron derivatives and activated carbon to create a binding system.

The invention provides a boron slag aerated brick. The boron slag aerated brick is prepared from the raw materials: 20 to 30 weight parts of boron slag, 25 to 30 weight parts of coal ash, 5 to 10 weight parts of cement, 4 to 6 weight parts of modified sepiolite powder, 5 to 10 weight parts of powdered carbon, 5 to 10 weight parts of ceramics factory waste, 5 to 10 weight parts of calcium carbonate powder, 10 to 15 weight parts of lime, 0.1 to 0.3 weight percent of triethanolamine lime, 4 to 5 weight parts of gypsum, 0.02 to 0.08 weight part of aluminum powder, nekal which is 3 to 5 percent based on the weight of the aluminum powder, 0.01 to 0.02 weight part of calcium bicarbonate, 2 to 3 weight parts of volcanic rock, 1 to 2 parts of lignocellulose, 0.3 to 0.5 weight part of soda ash, 1 to2 weight parts of white emulsion, 1 to 2 weight parts of hydroxypropyl methyl cellulose sodium, and 1 to 2 weight parts of chitosan. Boron slag is added into the raw materials of the aerated brick, other conventional aids and modified aids are added, and the aerated brick processed by an appropriate process is low in cost, high in performance, achieves a cyclic economy effect of changing waste into wealth, and reduces pollution; and the processed aerated brick has the characteristics of light volume weight, high thermal insulation performance, good sound absorption effect and high intensity, and can be used for a non-load bearing wall body or a load bearing wall body.

The invention relates to an intelligent prediction method and system for reservoir parameters of a volcanic rock oil reservoir. The method comprises the steps that firstly data preprocessing is performed on known logging information of the volcanic rock oil reservoir according to the logging curve characteristics, and logging curve data reaching a certain threshold with the reservoir parameter correlation of the volcanic rock oil reservoir is extracted from data pretreatment results to form training set data and the remaining logging curve data forms test set data; based on the training set data, a plurality of regression algorithms are combined with a big data machine learning algorithm to automatically establish regression estimation models between the reservoir parameters of the volcanic rock oil reservoir and the logging curve characteristics, and the regression estimation models are subjected to automatic optimization of the model parameters based on the multiple regression algorithms; the test set data is used for testing and evaluating the optimized regression estimation models, and the unqualified models are subjected to automatic optimization of the model parameters untilthe regression estimation model is qualified by inspection and evaluation; and finally, the regression estimation model qualified by the inspection and evaluation is used for carrying out the intelligent prediction of the unknown reservoir parameters, and the prediction result has high precision and small errors.

The invention discloses a method for firing a paving brick by recycling municipal sludge. In the method, raw materials for brick manufacturing comprise 50-60 parts of municipal sludge, 5-8 parts of straw coated particle, 4-6 parts of gypsum, 10-15 parts of silicate cement, 14-18 parts of fluorite slag, 5-8 parts of shale, 3-5 parts of modified meerschaum, 10-15 parts of volcanic rock, 15-25 parts of zeolite and 5-10 parts of cocoanut charcoal. The manufactured paving brick has the advantages of light weight, high strength, favorable water resistance, less deformation possibility, high safety, no pollution, environment friendliness, energy saving and the like. According to the invention, the method is simple and easy to operate, the raw materials are wide in sources, the cost is low, the energy is saved, and the casual discharge of municipal sludge is reduced, thereby achieving favorable social benefits and economic benefits.

The disclosed invention relates to the use of a volcanic rock mined from an unwelded ash flow tuff to remove toxic metals from contaminated aqueous solutions. The material absorptive properties can also be enhanced using a combination of zero valent iron, oxidized iron derivatives and activated carbon to create a binding system.

The invention discloses a rock wool produced by using phosphorous slag and a preparation method thereof, the rock wool is prepared by phosphorous slag as main raw material and dolomite and bauxite both as auxiliary raw material, wherein the proportions of the raw materials by weight part are calculated as below: 60-85 parts of phosphorous slag, 1-8 parts of dolomite and 10-25 parts of bauxite. Compared with the current method for producing rock wool with natural volcanic rock or volcano metamorphic rock, the method according to the invention realizes the production of the rock wool by using the phosphorous slag as raw material, which not only settles the raw material problem about rock wool heat-preserving material during the production in regions without natural volcanic rock or volcano metamorphic rock, but also widens the comprehensive utilization scope of industrial solid wastes such as the phosphorous slag and the like; adopting the method can effectively utilize the phosphorous slag and other industrial solid wastes to develop novel product with high added value, conforming to the requirements of policies related to cyclic economy as well as energy conservation and pollution reduction, and simultaneously achieving excellent development prospect. The rock wool produced according to the method has the advantages of good fireproof and heat preservation performance, long use time and the like, and is particularly suitable for the use as heat preservation material in the industries such as heat preservation of building energy-saving wall, chemical industry, building material, etc.

The invention discloses a preparation process for aerated concrete block with raw materials containing modified nano mineral powder. The preparation process comprises the following steps: weighing volcanic rock powder and gypsum according to weight ratio; stirring and mixing for 2 to 3 minutes at the speed of 700 to 1000 rpm after adding appropriate water, and then grinding to obtain mixed slurry of volcanic rock powder and gypsum; adding other raw materials such as modified nano mineral powder which is required for aerated concrete block preparation according to the weight ratio again; stirring and mixing the materials for 3 to 5 minutes at the speed of 2000 to 2800 rpm; pouring the obtained mixed slurry into the mold for forming; then procuring for 1 to 3 hours at the temperature of 40 to 50 DEG C; releasing the mold and lifting the produced material to a cutting department for cutting to obtain block blanks; putting the blocks into a reaction kettle to conserve with steam; and after the conservation is finished, putting the blocks into a warehouse. According to the invention, the preparation process for aerated concrete block with raw materials containing modified nano mineral powder optimizes the formula and materials, so that the strength and the frost resistance of the blocks are improved significantly.

The invention discloses an iron and manganese removal modified filter medium which takes volcanic rock as a carrier, as well as the preparation method thereof. The carrier of the modified filter medium is the volcanic rock coated with a polycondensate modifier. The volcanic rock is firstly pretreated by an acidic reagent, and then the pretreated volcanic rock is coated with a polycondensate modified mixed liquor, thereby realizing the modification to the volcanic rock. The modified volcanic rock filter medium can have better removal effect on iron ions and manganese ions in the neutral or the slightly acidic environment, thereby effectively removing the iron ions and the manganese ions in the mine water, realizing the resource recovery of the mine water and relieving the water using problem existing in the arid water shortage area; and the starting time is short, thereby having good effect on removing the heavy metal ions and the chroma in the industrial wastewater.

The invention relates to a volcanic rock weathering crust identification and classification standard based oil and gas exploration method. The volcanic rock weathering crust identification and classification standard based oil and gas exploration method comprises sorting basic data, performing well selection at the target position, establishing a water volcanic rock stratum contained volcanic rock weathering crust secondary porosity well logging evaluation model, establishing an oil-gas cement quality volcanic rock stratum contained volcanic rock weathering crust secondary porosity well logging evaluation model, obtaining a secondary porosity index in an oil-gas cement quality volcanic rock weathering crust, establishing a volcanic rock weathering crust structural identification and classification standard and performing oil and gas reserve evaluation according to structural characteristics of a volcanic rock weathering crust. According to the volcanic rock weathering crust identification and classification standard based oil and gas exploration method, the problem that analysis test data are less in the past and accordingly quantitative identification and classification cannot be performed on the volcanic rock weathering crust structure is solved, the area range of the identification and classification of the volcanic rock weathering crust structure is widened, and accordingly the oil field scientific research personnel can identify and classify out the volcanic rock weathering crust structure easily and the establishment of the volcanic rock weathering crust well logging evaluation models and the identification and classification standard is scientific and universal.

The invention provides a hydrocarbon saturation evaluation method based on a non-conductive pore model, and belongs to the field of oil-gas exploration and development. The method includes determining non-conductive porosity in a stratum and the ratio in the total porosity according to rock physical experiments, and utilizing an evaluating equation based on the non-conductive pore hydrocarbon saturation to determine the hydrocarbon saturation of a reservoir stratum. The method is effective to complex reservoir stratum, which is not adaptable to the traditional Archie theory, hydrocarbon saturation quantifying evaluation; lithological background conductivity factors are taken into account, and the method is particularly adaptable to the reservoir stratum which has large changes in lithology and strong heterogeneity; the method is adaptable to hydrocarbon saturation evaluation of complex reservoir stratums of various volcanic rocks, fractured carbonate rocks, metamorphosed rocks and the like, and reliable technique support is provided for efficient exploration and development of complex oil and gas reservoirs.

The invention discloses a rice husk ash-containing light partition board for buildings raw materials. The partition board is prepared from the following raw materials by weight part: 40-45 of serpentinite powder, 25-30 of portland cement, 15-20 of rice husk ash, 10-15 of gypsum powder, 3-5 of bauxite, 3-5 of volcanic rock powder, 1-2 of red mud, 1-2 of attapulgite, 2-4 of nano-mineral modified mixed powder, 0.5-1 of an acrylic emulsion, 1-2 of fatty alcohol-polyoxyethylene ether, 7-9 of a hydrogen peroxide solution with a concentration of 30-40%, and a proper amount of water. The partition board provided in the invention has the advantages of high strength, good shock resistance, sound insulation, thermal insulation, water resistance and the like.

The invention provides ecological concrete prepared based on an adsorbing material. The ecological concrete comprises aggregate, a solid additive and a liquid additive, wherein the aggregate comprises volcanic rock accounting for 70%-80% of the total mass of the aggregate and ceramsite or carbon black accounting for 20%-30% of the total mass of the aggregate, the volcanic rock serves as the adsorbing material, and the ceramsite or the carbon black serves as adsorbing molecules; the mass ratio of the aggregate to the solid additive to the liquid additive is 300: (1-3): (1-3). A method for purifying water by using the ecological concrete comprises the following steps: mixing the adsorbing material, the adsorbing molecules and clay, putting the mixture in cloth bags, laying the cloth bags so as to serve as a bottom layer, laying the ecological concrete on the cloth bags, laying planting soil mixed with the adsorbing material on the ecological concrete, and planting plants on the planting soil. According to the method, the indexes such as COD (Chemical Oxygen Demand), TP (Total phosphorus) and TN (Total Nitrogen) of water yielded by purification under the conditions of identical climatic environments, water flow and pollutant concentration are obviously reduced.

The invention provides a tail water artificial wetland treatment system of a sewage treatment plant, which at least includes a shallow multi-stage drop channel, an artificial combined unit wetland, an underflow wetland and a biological stabilization pond; the shallow multi-stage drop channel includes a water channel and a multi-stage drop dam , the artificial combined unit wetland includes an aerobic nitrification area, anoxic denitrification area and a sedimentation area, the subsurface flow wetland includes an inlet channel, a microbial reaction area, wetland plants and an outlet channel, and the biological stabilization pond is provided with an aquatic plant system and the aquatic animal system, the sewage sequentially passes through the shallow multi-level drop channel, the artificial combined unit wetland, the subsurface wetland and the bio-stabilization pond, and the dwarf evergreen bitter grass and emergent plants are planted in the shallow multi-level drop channel, and the The aerobic nitrification area and the anoxic denitrification area of ​​the artificial combined unit wetland are arranged with several microbial growth base units at intervals. The microbial reaction area of ​​the subsurface wetland is limestone, volcanic rock and gravel from top to bottom with particle sizes ranging from small to large.

The invention provides a piedmont nappe belt volcanic rock region reverse fault subdivision vertical carrying capability evaluation method. The method comprises steps that a fractured zone structure geologic model, a fractured zone structure layer permeability and effective stress relation model, a fractured zone structure layer geometric relation model, a fractured zone permeability evaluation model, a fractured zone permeability correction factor mathematical model are established; a fault carrying capability evaluation profile is selected in an optimized way; a fault subdivision vertical carrying quantitative evaluation model is established; and a fault carrying quantitative evaluation index threshold value is determined. The reverse fault subdivision vertical carrying capability evaluation method is advantageous in that the three-dimensional quantitative evaluation of the fracture carrying capability of the brittle stratum development region of the volcanic rock is realized, and the fault carrying capability quantitative evaluation method is enriched; the method can be widely used for the reverse fault carrying performance evaluation of the compressional basin piedmont nappe belt volcanic rock region, and therefore an important guiding significance is provided for oil and gas exploration.

The invention relates to a catalyst for treating industrial organic wastewater by a heterogeneous catalysis wet oxidation process and a preparation method thereof, which are mainly used for solving the problem of low COD removal rate in the prior art. The heterogeneous catalysis wet oxidation catalyst taking volcanic rock as a carrier comprises the following components in parts by weight: A: 97.5-99.7 parts of volcanic rock and B loaded on A: 0.3-2.5 parts of at least one precious metal of Ru, Pd, Pt and Au. By adopting the catalyst and the preparation method thereof, the problem is perfectly solved, and the catalyst can be used for treating industrial organic wastewater.