52 results about "Poikilitic" patented technology

The invention discloses a lithology generality joint feature classification model construction method, which relates to the technical field of intelligent geological prospecting, introduces a cross-scale feature alignment mechanism, and utilizes scale transformation factors to dynamically match the resolutions of macroscopic, mesoscopic and microscopic features, thereby avoiding feature distortion caused by direct fusion; for example, in a volcanic rock and sedimentary rock mixed area, rough texture of a remote sensing image originally conflicts with smooth response of a logging curve, but through alignment processing, the model can automatically balance credibility of different data sources, and misjudgment is reduced; inter-scale dependence modeling is further enhanced through introduction of the feature association graph, vertical sequence association of a thin interbed is captured through a graph structure, the boundary of a millimeter-level thin layer is made clear, and the problem of fuzziness caused by neglecting of interlayer interaction in an existing scheme is solved.

The invention provides a volcanic rock matrix-fracture dual-medium type oil reservoir oil layer evaluation method and system, and belongs to the technical field of geological engineering, oil reservoir processes and well logging interpretation. According to the method, a matrix porosity calculation chart is established through core scale logging, crack pores are added into an Archie sandstone conductive model to serve as conductive channels, the crack porosity is deduced, and finally, the matrix pores, the crack pores, the oil saturation and an oil testing result are combined to obtain the conductivity of the Archie sandstone. And the quantitative distinguishing method for the matrix-fractured dual-medium oil and gas reservoir oil layer is formed. According to the method, the gap of simultaneous research of the matrix and the crack is filled, the oil layer recognition precision is improved, the judgment standard is more strict and more reasonable, and the reliability is high.

The invention relates to a reservoir prediction optimization method and system based on a buried hill volcanic rock core test. The method comprises the following steps: S1, performing ultrasonic active source detection on a volcanic rock sample through an annular observation system to obtain actually measured travel time and a ray path; and S2, theoretical travel time and a ray path are calculated based on the initial speed model, iterative updating is carried out on the initial speed model based on a preset inversion method until the theoretical travel time and the ray path are consistent with the actually measured travel time and the ray path, model iteration is completed, the model is output, and the output model is the speed structure in the volcanic rock sample. And S3, establishing a rock physical model according to the speed structure and the core pores. And S4, calculating according to the rock physical model to obtain a rock physical interpretation quantity version related to the dessert parameters, and performing engineering and geological dessert parameter prediction by using pre-stack seismic data. According to the method, the key parameters of the buried hill volcanic reservoir can be effectively predicted through accurate rock physical modeling.

The invention provides a lithology identification method based on conventional logging information. The lithology identification method comprises the following steps: S1, acquiring an interval transit time AC curve, a stratum density DEN curve and a natural gamma GR curve in a conventional logging sequence of a target well; s2, a wave impedance IMP curve is obtained through calculation by means of the interval transit time AC curve and the stratum density DEN curve; s3, generating a combined curve of wave impedance IMP and natural gamma GR; s4, based on a preset lithology discrimination standard, performing quantitative lithology identification according to the combined curve to obtain a quantitative lithology identification result; and S5, generating a lithologic section of the target well according to a lithologic quantitative identification result. The method is easy to operate, data are easy to obtain, the lithology of sandstone, mudstone and volcanic rock can be rapidly and accurately recognized, feasibility and credibility are high, and a scientific lithology recognition means is provided for exploration and development technicians.

The invention provides a volcanic rock complex area pre-stack space residual amplitude compensation method, and relates to the technical field of seismic post-stack data compensation. According to the method, the amplitude change rule of the target stratum is reflected through root mean square amplitude statistics of the igneous rock development area target stratum; after smoothing and normalization, abnormal root mean square amplitude attributes caused by bad traces and abnormal traces possibly existing in the seismic superposition data are eliminated; by extracting an amplitude compensation factor, obtaining a calculation factor which can be applied to the pre-stack CMP gather; the pre-stack space residual amplitude compensation of the volcanic rock complex area is realized, and the spatial amplitude consistency of a target layer is improved.

An in-situ metal-leaching system comprising an injection well 109 arranged to receive at ground level a leaching solution comprising a lixivant and inject it into underground glassy volcanic rock 102, and a production well 108 and metal extraction plant 105 arranged to receive and process metal leached from the rock 102. Heat can be extracted by means of a heat exchanger 106 from the leaching solution or output fluid from the metal extraction plant 105 and output fluid from the metal extraction plant 105 can be returned to the injection well 109. The metal can be a rare earth, zirconium, niobium, tantalum, hafnium or zinc and the rock 102 can comprise peralkaline rhyolite volcanic tuff. The leaching solution can have a pH of less than 4 (e.g. comprising sulfuric acid) or greater than 10.

The invention discloses a volcanic rock reservoir saturation calculation method based on basin simulation paleo-pressure recovery, which comprises the following steps of: firstly, recovering paleo-pressure of hydrocarbon source rock in a target area by utilizing basin simulation and a fluid inclusion method, and calculating filling pressure of a reservoir in a reservoir forming period by combining hydrocarbon column buoyancy of an oil and gas reservoir and hydrostatic pressure of a stratum; then oil (gas) saturation of each capillary pressure sample is determined by using a filling pressure and core mercury injection experiment, and a nuclear magnetic resonance logging T2 cut-off value is calibrated; and finally, the oil (gas) saturation of the whole well section is calculated by using the calibrated nuclear magnetic resonance logging information. According to the method, the combined action of buoyancy filling and source rock overpressure in the volcanic rock reservoir formation process is comprehensively considered and used for mercury injection experiment data analysis, nuclear magnetic resonance logging information is calibrated through the core mercury injection experiment result to achieve reservoir saturation calculation, and the saturation evaluation accuracy of the volcanic rock reservoir is effectively improved.

The application discloses a qualitative identification method for thin-layer mudstone interlayer in volcanic rock, which comprises the following steps: firstly, determining a mudstone section stably existing in the whole area through core observation and logging data, and taking the mudstone section as a standard section; secondly, selecting three curves (a neutron logging curve, an acoustic time difference logging curve and a density logging curve) responding best to the mudstone, standardizing logging curves of the standard section and the volcanic rock section in the whole area, and determining the peak value and the distribution range of the logging curves; selecting sample points with the best effect in the mudstone section and the volcanic rock section, taking the acoustic time difference logging curve as the horizontal coordinate, and taking the neutron logging curve and the density logging curve as the vertical coordinate respectively to establish a logging interpretation chart, qualitatively determining the identification standard of the mudstone and the igneous rock, and predicting the mudstone interlayer in the volcanic rock in a single well according to the chart. The application solves the problem of qualitative identification of the thin-layer mudstone interlayer in the volcanic rock, and provides reliable technical support for the analysis of the remaining oil potential of the igneous rock.

The utility model relates to the field of volcanic rock pouring buses, and discloses a connecting device for volcanic rock pouring buses, which comprises a fixing plate, the top of the fixing plate is fixedly connected with a first fixing block, the bottom of the fixing plate is fixedly connected with a second fixing block, and the bottom of the fixing plate is fixedly connected with a supporting block. A first connecting plate is slidably connected to the inner wall of the first fixing block, a first connecting groove is fixedly connected to the outer wall of one side of the first connecting plate, a fixing groove is fixedly connected to the top of the first connecting groove, and a second connecting plate is slidably connected to the inner wall of the second fixing block; the top of the second connecting plate is fixedly connected with a second connecting groove, and the top of the second connecting groove is fixedly connected with a connecting strip. The inner wall of the circular groove is adaptively matched with the bottom of the spring damper, so that the connecting strip is firmly fixed under the reset action of the spring damper, quick plug-pull type connection is realized, the connection time is shortened, and the working efficiency is improved.

The invention discloses a longitudinal and transverse wave VSP-based segmented amplitude attenuation factor calculation method and system and a medium, and relates to the technical field of geophysical exploration and rock physics analys.The method is improved on the basis of a traditional amplitude attenuation factor calculation method, a segmented geologic model of a target area is constructed based on a strong reflection interface, longitudinal wave and transverse wave zero offset VSP data is utilized, and the seismic data of the target area is calculated. The geological amplitude attenuation factor of each layer section of the layered medium is obtained through longitudinal and transverse wave joint inversion and segmented quantification, accurate compensation of stratum amplitude attenuation under strong reflection shielding of a coal seam, a volcanic rock layer and the like is achieved, and more reliable parameters are provided for solving the problems of data distortion and the like caused by shielding effects below strong reflection in ground seismic data processing. The obtained amplitude attenuation factor can be directly used for guiding fidelity processing and high-resolution imaging of ground seismic data, and signal recovery and imaging quality of deep and hidden reservoirs are remarkably improved, so that a more reliable geophysical basis is provided for subsequent fine description of the reservoirs and fluid detection.

The invention discloses volcanic rock core splitting equipment, and belongs to the technical field of volcanic rock core splitting. The volcanic rock core splitting equipment comprises a lifting type cutting assembly used for carrying out core splitting on a volcanic rock sample, a clamping assembly used for fixing the volcanic rock sample and a moving assembly used for moving the clamping assembly, the clamping assembly comprises two sets of clamping parts used for clamping the volcanic rock sample, the two sets of clamping parts are oppositely arranged, and the clamping parts are arranged on the lifting type cutting assembly. The bottom parts of the two groups of clamping parts are hinged, and the driving assembly is used for controlling the opening and closing of the two groups of clamping parts; according to the invention, through the arrangement of the two groups of clamping parts, the two ends of a sample can be clamped and fixed, and the driving assembly is matched in the cutting process, so that the occurrence of saw blade clamping can be reduced, and the occurrence of saw blade clamping can be reduced while the sample is fixed; therefore, the problem that in the prior art, in the volcanic rock sample core splitting process, a sample fixing mode is prone to being clamped by a saw blade is solved.

The invention relates to an evaluation method of a broken basin volcanic rock reservoir, and belongs to the technical field of physical exploration. Determining the parameter value of the lower limit of the reservoir through the relationship between the pore throat radius distribution and the mercury injection displacement pressure; constructing a geologic function related to the porosity, the gas saturation and the permeability; and integrating the reservoir average pore throat radius, the comprehensive evaluation parameters, the porosity and the permeability, and establishing a reservoir comprehensive grading evaluation standard. Based on well drilling logging data and seismic data, a geological basis is provided for work such as evaluation, exploration and development deployment of a favorable area of the volcanic gas reservoir.

The invention relates to the technical field of oil and gas reservoir transformation, in particular to an in-section balanced fracturing transformation method suitable for a volcanic rock reservoir. The method comprises the following steps: step 1, carrying out stress grading on fracturing desserts in any fracturing section; 2, determining the number of perforation clusters corresponding to each stage of fracturing dessert and the number of perforation of each cluster; 3, perforation is carried out on the target fracturing section according to the determined perforation cluster number and the perforation number of each cluster; 4, fracturing transformation is conducted on the target fracturing section step by step in cooperation with a seam temporary plugging technology till transformation is completed; and 5, the steps 1-4 are repeated till transformation of all the fracturing sections is completed. According to the technical scheme, the fracturing technology can be more targeted and effective, a larger-volume fracture net is achieved, and the purpose of balancing volume fracturing is achieved.

The invention relates to the technical field of mineral products, in particular to a volcanic rock type molybdenum polymetallic ore prospecting prediction method based on multivariate heterogeneous data, and the method comprises the steps: systematically collecting a research area, mineral product data, geochemical data, geophysical data and landform data, summarizing a regional metallogenic law, dissecting typical ore deposit characteristics, and constructing a theoretical metallogenic model; and constructing a digital elevation model, and cleaning and preprocessing geochemical and geophysical data. Rich regional background information is provided for the model, and dependence on single regional data is avoided. According to the method, the ore deposit-mineralization-enrichment-ore-free classification sample library is constructed, the problem of unreasonable sample division is solved, and the adaptability of the model to different mineralization conditions is enhanced.

The embodiment of the present application provides a kind of production method, device and equipment of volcanic rock model and storage medium, belong to model making field.The production method of volcanic rock model includes: the characteristic data of volcanic mechanism is obtained;According to characteristic data, the digital model of volcanic mechanism is generated;According to digital model, the mold of volcanic mechanism is manufactured;Based on digital model, according to the processing of mold according to preset production process, the model of volcanic mechanism is obtained;Preset production process includes carving process and pouring process.The present application improves the intuitiveness of volcanic rock reservoir.

The invention discloses a method for depicting a fire body based on a multichannel coherent reflection intensity slope attribute. The method comprises the following steps: acquiring seismic geological section features corresponding to each geological layer of the fire body in a research area; depicting a volcano channel phase of the fire body in the research area and determining a development range of the volcano channel phase on the basis of the seismic geological section characteristics and the multiple coherent average energy slices of the fire body in the research area; the method effectively solves the problem that the existing volcanic rock mass recognition technology is slow in recognition speed and poor in recognition effect on the features of the fire mountain body structure.

The invention relates to the technical field of oil and gas, and discloses an experimental device for simulating volcanic rock oil and gas reservoir microfractures, which comprises an experimental table, a supporting seat, a supporting rod and a supporting rod, the fluid injection assembly is arranged on the upper surface of the supporting seat and used for injecting liquid and oil into the device; the experiment assembly is arranged on the experiment table and comprises a shell, the lower surface of the shell is fixed to the upper surface of the experiment table, a collecting hopper is fixed in the shell, a rock core is arranged in the collecting hopper, a crack groove is formed in the rock core, and supporting frames which are in bilateral symmetry are fixed to the outer wall of the collecting hopper; the outer wall of each supporting frame is fixedly provided with first hinged blocks which are symmetrical left and right. Through cooperation of the internal structure of the experiment assembly, the hydraulic rod and the conical block, a rock core is clamped and fixed, meanwhile, replacement is convenient, meanwhile, the crack expansion range is controlled, and the problem that the experiment precision is insufficient due to the fact that the rock core is not firmly fixed in a traditional experiment device is solved.

The application provides a volcanic rock matrix-fracture double medium type oil reservoir evaluation method and system, and belongs to the technical field of geological engineering, oil reservoir technology and well logging interpretation.The application establishes a matrix porosity calculation chart by core calibration logging, adds a fracture pore as a conductive channel in an Archie sandstone conductive model, deduces fracture porosity, and finally combines the matrix pore, the fracture pore, the oil saturation and the oil test result to form a matrix-fracture type double medium oil and gas reservoir quantitative identification method.The application fills the gap of the research on the matrix and the fracture at the same time, improves the oil reservoir identification precision, and is more strict and reasonable in the identification standard, and is high in reliability.

The invention provides a method and a device for recovering the denudation thickness and the thermal historical evolution process of a superimposed basin. The method for recovering the denudation thickness and the thermal historical evolution process of the superimposed basin comprises the following steps: selecting a rock sample of a target work area; wherein the rock sample is at least one of a sandstone sample, a volcanic rock sample and a metamorphic rock sample containing apatite and zircon mineral particles; performing in-situ microcell isotope dating measurement on the rock sample to generate a dating measurement result; and determining the denudation thickness according to the ground temperature gradient of the target work area and the dating measurement result, and recovering the thermal historical evolution process. According to the method, quantitative recovery of the stratum denudation thickness caused by multi-stage tectonic cycle superposition and inversion of the dynamic evolution process of the thermal history under multi-stage tectonic activity superposition can be achieved, the defects in the prior art are effectively overcome, and the method has great significance in research and exploration evaluation of oil and gas accumulation in the complex superimposed basin.

The present application relates to the technical field of deep gas risk exploration, and particularly relates to a deep low exploration area volcanic reservoir prediction method, device, equipment and medium. The method comprises the following steps: according to the reservoir sensitive parameters of a research area, a post-stack virtual well constrained inversion is selected to obtain a low frequency model of a full low frequency band of a virtual well; a geological model is established based on the low frequency model of the full low frequency band and seismic interface information; based on the reflection characteristics of the volcanic rock in the research area, a Laplace operator frequency division configuration attribute is used to depict the volcanic rock body; according to the geological model and the volcanic rock depiction result, a configuration attribute of a slice position of a target layer is extracted, low frequency modeling is carried out based on the configuration attribute constraint to obtain a configuration attribute volume controlled low frequency model; and inversion is carried out based on the configuration attribute volume controlled low frequency model to obtain a volcanic reservoir prediction result of the research area. The present application realizes the spatial distribution depiction of irregular geological bodies, and the depiction of special geological bodies is clearer, which has an important supporting role for risk well deployment.

The invention relates to the technical field of volcanic rock cover layer analysis devices, in particular to a volcanic rock cover layer component analysis and recognition device which comprises a base, a positioning assembly, a first recognition assembly and a second recognition assembly. The upper side of the positioning assembly is provided with a first identification assembly capable of scanning and identifying the volcanic rock layer sample from top to bottom and obtaining a first scanning result, the second identification assembly comprises a synchronous material taking assembly, a feeding conveyor belt and a reagent supply mechanism, and the synchronous material taking assembly is arranged below the positioning assembly. The device is reasonable and compact in structure and convenient to use, the first recognition assembly obtains the first scanning result to provide guidance for subsequent reagent assay detection, the reagent assay efficiency and the detection accuracy are improved, the overall automation degree can be greatly improved by arranging the synchronous material taking assembly, the feeding conveying belt and the reagent supply mechanism, and the labor intensity of workers is reduced. The detection efficiency is improved.

The application discloses a kind of overpressure genesis contribution evaluation methods of volcanic gas reservoir based on well logging identification, it is related to the technical field of oil and gas exploration and development, its steps are as follows: first step: using geological data, distinguish overpressure and normal pressure volcanic rock depth section, clear overpressure development scale;Second step: using well logging data, identify overpressure development genesis;Third step: using rock resistivity-density relationship, the contribution of different genesis overpressure is obtained.The method can quantitatively calculate the contribution ratio of different genesis to overpressure formation according to the change amount of the volume properties and the conduction properties of the rock in the overpressure section, reducing the influence of manual intervention, avoiding artificial error or error, so that the prediction method has high quantitative prediction accuracy.

The present application relates to the technical field of digital image processing of geological structure, and particularly relates to a method for identifying volcanic tectonic fractures after weathering modification. The method of the present application comprehensively uses drilling, imaging logging, core and sidewall core data, combines with chart drawing and stereographic projection functions, realizes identification and statistics of volcanic tectonic fractures after weathering modification, and significantly improves the identification accuracy of volcanic tectonic fractures.

The invention discloses a volcanic rock reservoir hydrothermal activity age determination method, and relates to the technical field of volcanic rock identification. Comprising the following steps: acquiring a zircon sample target of a volcanic reservoir to be detected; carrying out laser Raman spectrum test to obtain zircon sample target Raman spectrum data; processing the data to obtain the peak position and the full width at half maximum of the vibration peak v3SiO4 of the zircon sample target; fitting the full width at half maximum of the vibration peak v3SiO4 and the position parameters of the center of the wave crest so as to determine the morphological characteristics and components of the inclusions in the zircon; performing isotope proportion and trace element composition analysis to determine the formation age of zircon; and constructing a full width at half maximum-time fitting curve, and judging the formation period of the hydrothermal mineral symbiotic with the zircon. The method not only can be used for dividing the zircon period in volcanic lava, but also can be used for better judging the formation cause of the zircon, and provides an important judgment basis for the volcanic reservoir suffered from the later hydrothermal / tectonic action event and the time of the later hydrothermal / tectonic action event.

The application discloses a multi-modal volcanic rock fine-grained lithology identification method and system based on temperature scaling probability calibration, and belongs to the cross technical field of artificial intelligence and geophysical exploration. In view of the problems that the feature-level multi-modal fusion method is prone to overfitting, has poor generalization ability under the conditions of geological small samples and low signal-to-noise ratio, and the overconfident output probability of a deep neural network leads to unreliable fusion decision, the application proposes a three-section decision-level framework of 'decoupling-calibration-fusion'. First, an image expert network and a logging expert network are constructed, and independent feature extraction and classification are respectively performed on rock slice images and logging data; second, temperature parameters are respectively fitted on a verification set, and the non-normalized prediction values output by the two expert networks are temperature scaled to convert into calibrated probability distribution; and finally, the probability distribution is weighted and fused with a learnable weight parameter to realize fine-grained lithology identification.

1. Name of the design product: Bottle cap (volcanic rock). 2. Use of the design product: The design product is used as a bottle cap for sealing. 3. Design key points of the design product: Lies in the shape of the product. 4. Picture or photo that best shows the design key points: Perspective view 1.

The invention relates to the technical field of volcanic rock oil reservoir development methods, in particular to a double-medium oil reservoir stepped crack expansion reservoir transformation method which comprises the steps of processing evaluation index data of volcanic rock with a certain storage-production ratio, constructing an evaluation index weight vector and an evaluation index membership matrix, and calculating a stepped expansion potential index according to the evaluation index weight vector and the evaluation index membership matrix. The method comprises the following steps: preferably selecting a perforation interval for expansion transformation according to a calculation result, determining parameters such as reasonable construction displacement of the perforation interval in combination with inter-well rock mass conditions, increasing subsequent expansion step by step, controlling fracture height and fracture length excessive extension, increasing the number of fractures, increasing the complexity of the fractures, and analyzing pressure drop during each fracture expansion shut-in period. Therefore, the seepage state is judged to evaluate the crack expansion operation effect. According to the method, stepped crack expansion fracturing is carried out on the optimized interval, the crack height is effectively controlled, a complex micro-crack net is formed, the production degree of a carboniferous oil layer, especially a thin-difference layer and an interlayer and inter-well oil-water relation complex oil layer is improved, and the volcanic rock development effect and recovery efficiency are effectively improved.

The invention belongs to the field of oil and gas geophysics, and particularly discloses a volcanic rock volcanic channel identification method and device, and the method comprises the steps: obtaining a texture feature attribute and a tensor attribute based on a volcanic rock original time domain seismic data body; and fusing the texture feature attribute and the tensor attribute, and depicting the volcanic channel development position of the volcanic rock. According to the volcanic rock volcanic channel identification method, texture feature value attributes and tensor attributes are fused, the volcanic channel development position under the volcanic mechanism background can be completely described, and finally a complete and effective technical method and process are provided for volcanic rock volcanic channel phase identification.

The invention relates to the technical field of digital image processing of geological structures, in particular to an identification method for volcanic rock structure cracks after weathering transformation. According to the method, well drilling, imaging well logging, rock core and wall center data are comprehensively utilized, chart drawing and astrophe polar projection functions are combined, volcanic rock structure fractures after weathering transformation are recognized and counted, and the recognition precision of the volcanic rock structure fractures is remarkably improved.

The invention discloses a volcanic rock inorganic mineral full cast busbar support hoisting structure, relates to the technical field of busbar support hoisting, comprises a wall body and a cast busbar body, the cast busbar body is arranged on one side of the wall body, mounting plates are fixedly connected at equal distances on both sides of the cast busbar body, and triangular brackets are evenly arranged on one side of the cast busbar body close to the mounting plate, which can not only ensure that the cast busbar body does not deviate during the installation process, but also avoid the negligence of the staff due to long-term high-intensity operation, such as failure to maintain the stable state of the cast busbar body, or failure to ensure the absolute accuracy of its position when fixing the cast busbar body, thereby perfectly achieving the expected installation effect, ensuring that the cast busbar bodies are tightly connected and in good contact, reducing contact resistance, and accurate cast busbar body installation can ensure the reliability of electrical connection, and reduce the risk of electrical discharge, short circuit or system failure caused by installation deviation.