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64 results about "Igneous rock" patented technology

Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust. Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure, or a change in composition. Solidification into rock occurs either below the surface as intrusive rocks or on the surface as extrusive rocks. Igneous rock may form with crystallization to form granular, crystalline rocks, or without crystallization to form natural glasses. Igneous rocks occur in a wide range of geological settings: shields, platforms, orogens, basins, large igneous provinces, extended crust and oceanic crust.

Systems and methods for evaluating hydrogen generation potential using magnetic susceptibility and gravity measurements for geologic hydrogen exploration

A method for evaluating geological hydrogen source rock in a region is provided. The method includes: collecting magnetic susceptibility data from a plurality of subsurface locations in the region; receiving geophysical survey data of the region, wherein the geophysical survey data comprises geophysical data collected from above ground; tying the magnetic susceptibility data of the plurality of subsurface locations to the geophysical survey data; generating a geologic map of igneous rock, metamorphic rock, or mafic mineral- or iron-rich sedimentary rock within the region based on the magnetic susceptibility data using a model; and determining, based on the geologic map, a target zone of the geological hydrogen source rock with a potential for hydrogen production or with the potential for hydrogen accumulation.
Owner:KOLOMA INC

A three-dimensional multi-parameter fusion igneous rock positioning method and system

This invention discloses a three-dimensional multi-parameter fusion method and system for igneous rock location, relating to the field of geological exploration. The method includes: acquiring three-dimensional geological parameter data of a target area and preprocessing it to obtain three-dimensional multi-parameter data; using a trained igneous rock classification and recognition model to identify the probability prediction value of the type of each three-dimensional grid in the three-dimensional multi-parameter data; and performing smoothing processing based on the probability prediction values ​​of the three-dimensional grid types and the probability prediction values ​​of neighboring three-dimensional grid types to determine the final type of all three-dimensional grids, thereby obtaining the igneous rock mass type and three-dimensional location. This invention, by aligning and fusing multiple three-dimensional data of the target area and confirming the rock mass type of each three-dimensional grid based on multiple parameters, can accurately identify the rock mass type at each location, thus improving the accuracy of igneous rock mass location.
Owner:CHINA NONFERROUS METALS (GUILIN) GEOLOGY AND MINING CO LTD

Method, storage medium and device for determining flow direction of intrusive rock mass

The present invention discloses a method, storage medium, and device for determining the flow direction of an intrusive rock mass. The method identifies the intrusive rock mass and the bedrock model in the intrusive rock mass within a three-dimensional region, determines the target bedrock model based on the seismic reflection characteristics of the bedrock model, and tracks the target bedrock model to obtain the three-dimensional spatial morphology of the target bedrock model. In addition, based on three-dimensional seismic data, the distribution characteristics of the fault system in the adjacent layers of the intrusive rock mass are determined. Finally, by combining the three-dimensional spatial morphology of the target bedrock model and the distribution characteristics of the fault system, the flow direction of the intrusive rock mass is comprehensively determined based on the correlation between the three-dimensional spatial morphology and the distribution characteristics of the fault system and the flow direction of the intrusive rock mass. This method can effectively determine the flow direction of deep intrusive rock masses, and can also provide a basis for the exploration of igneous rock masses, facilitating the implementation of well site deployment and well trajectory optimization.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Method for predicting coal quality of magma contact metamorphic zone based on organic geochemical data

The invention provides a magma contact metamorphic zone coal quality prediction method based on organic geochemical data, and relates to the technical field of coal quality prediction. The magma contact metamorphic zone coal quality prediction method based on the organic geochemical data comprises the following steps that S1, at least two sampling sections are arranged in the direction perpendicular to a contact zone of a magma rock mass and a coal seam, one sampling section is perpendicular to a coal seam sedimentary layer, the other sampling section is parallel to the coal seam sedimentary layer, coal samples are collected on the sampling sections at equal intervals, and coal samples are obtained; and obtaining organic geochemical data of the critical control points. Through sparse sampling and transition point recognition algorithms, data requirements are greatly reduced, the prediction period is shortened, complex simulation is replaced by template matching, the prediction process is intuitive and explainable, a multi-source verification and reliability grading mechanism ensures that the result is stable, the overall method is high in practicability and easy to deploy and apply in a resource limited scene, and the prediction efficiency is improved. And the decision-making quality and benefit are improved.
Owner:HEBEI UNIV OF ENG

Foundation structure based on highly saturated brine crystallization technology and construction method thereof

PendingCN121853544AImprove bearing capacityImprove anti-settling performanceSoil preservationSalt lakeIgneous rock
The invention relates to the technical field of construction engineering foundation treatment, in particular to a foundation structure based on a high-saturation brine crystallization technology and a construction method of the foundation structure. The foundation structure comprises a basic primary salt rock bearing layer, a bottom framework cementing layer and a surface sand gravel compensation layer. As the magmatic rocks are very hard, high in density and enough in salt lake chemical environment resistance, the magmatic rocks are directly put into a hypersalinity brine area to form a rigid framework, framework building-in, gap filling and overall cementing are achieved through natural crystallization of salt lake hypersalinity brine, and a core rigid framework of the foundation is formed; the structure can be connected with a primary salt rock bearing layer of a lower foundation to form a stress transmission system, can resist soaking erosion caused by conventional fluctuation of the brine water level, has anti-floating and anti-seepage dual performance, can improve the foundation bearing capacity and the anti-settling capacity, and enables a building newly built on a salt lake to be more stable. Meanwhile, the magmatic rocks are natural materials, so that the salt lake environment is not polluted, and the environmental protection property is good.
Owner:CHINA CAMC ENG

Systems and methods for generating hydrogen and magnetite from rock

Systems and methods for sequestering carbon, evolving hydrogen gas, producing iron oxide as magnetite, and producing magnesium carbonate as magnesite through sequential carbonation and serpentinization / hydration reactions involving processed olivine- and / or pyroxene-rich ores, as typically found in mafic and ultramafic igneous rock. Precious or scarce metals, such nickel, cobalt, chromium, rare earth elements, and others, may be concentrated in the remaining ore to facilitate their recovery from any gangue material.
Owner:OHIO STATE INNOVATION FOUND

Systems and methods for evaluating hydrogen generation potential using magnetic susceptibility and gravity measurements for natural hydrogen exploration

A method for evaluating geological hydrogen source rock in a region is provided. The method includes: collecting magnetic susceptibility data from a plurality of subsurface locations in the region; receiving geophysical survey data of the region, wherein the geophysical survey data comprises geophysical data collected from above ground; tying the magnetic susceptibility data of the plurality of subsurface locations to the geophysical survey data; generating a geologic map of igneous rock, metamorphic rock, or mafic mineral-or iron-rich sedimentary rock within the region based on the magnetic susceptibility data using a model; and determining, based on the geologic map, a target zone of the geological hydrogen source rock with a potential for hydrogen production or with the potential for hydrogen accumulation.
Owner:KOLOMA INC

A qualitative identification method for thin mudstone interlayer in volcanic rock

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.
Owner:PETROCHINA CO LTD

Inflection wave imaging method based on reverse time migration

PendingCN121956110AImproving Imaging AccuracyImprove image qualitySeismic signal processingSalt domeWave field
The invention provides an inflection wave imaging method based on reverse time migration, and the method comprises the steps: 1, carrying out the extrapolation of a seismic source wave field and a detection point wave field, and extracting the local ray parameters of the wave fields; 2, calculating a local stratigraphic dip angle of the wave field; 3, if the local stratigraphic dip angle is larger than 90 degrees, the inflection wave single-shot imaging result is calculated; if the local stratigraphic dip angle is smaller than 90 degrees, an imaging reflection angle is calculated; 4, calculating an inflection wave imaging result; 5, accumulating single shot results to a final imaging result; and step 6, repeating the steps 1 to 5 until all shots are calculated. According to the inflection wave imaging method based on reverse time migration, an inflection wave is imaged by using a two-way wave equation wave field bidirectional continuation reverse time migration method, so that the imaging precision of a high and steep dip angle complex structure is improved, and technical support is provided for especially exploration of high and steep structure complex areas such as salt mounds, igneous rocks and reverse masks.
Owner:CHINA PETROCHEMICAL CORP +3

Structural environment probability discrimination method and device based on multi-source geochemical data

The invention provides a multi-source geochemical data-based tectonic environment probability discrimination method and equipment, and relates to the technical field of geological prospecting, quality screening is performed on total rock, zircon and apatite data according to metadata of a target igneous rock sample, the influence of original data quality difference on a discrimination result is reduced from a data source, and the discrimination efficiency is improved. The screened total rock element vector, the screened zircon point location data and the screened apatite point location data are subjected to detection limit uniformization through metadata, so that the comparability of cross-batch and cross-laboratory is improved, and false correlation is inhibited; and feature calculation and feature aggregation are performed on the transformed total rock element vector, the transformed zircon point location data and the transformed apatite point location data, so that the problems that multi-point location data fusion is not standard and cross-evidence consistency cannot be quantified are solved, and the judgment stability of a construction environment is improved from multiple aspects.
Owner:CENT SOUTH UNIV

A comprehensive prediction method for oil-uranium-hot dry rock-shale oil in sedimentary basins

This invention discloses a comprehensive prediction method for oil-uranium-hot dry rock-shale oil in sedimentary basins, belonging to the field of geological exploration technology. This method involves using effective geophysical methods to extract basic geological background information, constructing a three-dimensional spatial framework of the basin, clarifying the correlation between structures, strata, and igneous rocks, calculating the correlation coefficient and intercept of airborne gravity and magnetic anomalies, initially screening key target areas, extracting key information on energy resource accumulation / mineralization, performing two-dimensional or three-dimensional characterization of target geological bodies, combining magnetotelluric sounding inversion profiles with seismic and drilling data, adjusting core parameter settings, and overlaying oil-uranium-hot dry rock-shale oil resource accumulation / mineralization evaluation information to obtain comprehensive energy resource prediction results. This method can provide scientific and technical support for basic geological research on oil-uranium-hot dry rock-shale oil in sedimentary basins and provide comprehensive and reliable prediction of resources.
Owner:CHINA AERO GEOPHYSICAL SURVEY & REMOTE SENSING CENT FOR LAND & RESOURCES

Method, device, equipment and medium for determining magma distribution in intrusive fault zones

The present invention discloses a method, device, equipment and medium for determining the distribution of magma in an intrusive fault zone, which relates to the technical field of oil and gas field exploration and development, including: loading geological data of a target area; constructing a fault plane of a magma intrusive fault zone in the target area based on the geological data; calculating a magma distribution indicator factor of the magma intrusive fault zone in the target area; and determining the magma distribution position in the magma intrusive fault zone in the target area. The present invention considers the value characteristics and frequency characteristics of the seismic information of the magma intrusion body, and combines the distribution characteristics of the fault to propose a magma distribution indicator factor S of the igneous rock intrusive fault zone, thereby achieving the purpose of quantitatively predicting the distribution range of magma in such fault zones. It can be used to predict the closed and drained oil and gas locations in the fault zone, and the resulting prediction effect is more in line with actual geological laws. It does not require the statistics of a large number of geological parameters, and can be directly studied on seismic data, making the implementation process more intuitive and rapid.
Owner:PETROCHINA CO LTD

High capacity bushing plate for producing igneous rock fibers

An inductively heated bushing box and fiber formation method for an igneous rock melting furnace. The bushing box includes side walls with a water cooling system surrounded by one or more induction coils for maintaining and even temperature distribution of melted charge before the melt is extruded through tips of a bushing plate. The bushing plate is offset from the bottom of the one or more induction coils to avoid end effects and better ensure consistent eddy current formation. By increasing the uniformity of temperature distribution over a larger surface area, the system allows for a greater number of tips per bushing plate, and therefore provides for greater efficiency.
Owner:ROCK FIBER INC

Systems and methods for generation of hydrogen by in-situ (subsurface) serpentinization and carbonization of mafic or ultramafic rock

ActiveUS12716336B2Ultramafic rockCarbonization
Apparatuses, systems, and methods are disclosed for producing and liberating hydrogen gas and sequestering carbon dioxide through sequential serpentinization and carbonation (mineralization) reactions conducted in situ via one or more wellbores that at least partially traverse subterranean geological formations having large concentrations of mafic igneous rock, ultramafic igneous rock, or a combination thereof.
Owner:OHIO STATE INNOVATION FOUND

Inematic rock seismic fractal recognition and construction method

The invention discloses an igneous rock seismic fractal recognition and construction method. The method comprises the steps of well seismic calibration; determining the distribution type of igneous rocks in the research area based on well-seismic calibration; seismic detection of the intrusive rock mass: eliminating strongly reflective sandstone in the intrusive rock mass in the research area to obtain an intrusive rock attribute body; carrying out earthquake detection on the fire body, extracting a variance body of the fire body in the research area, carrying out normalization, and pressing a high-value section by using a target pressing and releasing technology to obtain an indicator of the fire body; carrying out the extraction of the top and bottom enveloping surfaces of the fire body from the attribute body after the target compression, and carrying out the background compression of the fire body through the constraint of the top and bottom enveloping surfaces of the fire body, thereby forming a background shielding reinforcement of the fire body; and performing fractal construction on the igneous rock, and combining the intrusive rock attribute body and the fire body background shielding reinforcement body to obtain a complex of igneous rock space distribution. According to the method, spatial distribution of igneous rocks is comprehensively described through fractal detection and an embedded construction technology, and a geological foundation is laid for well trajectory optimization and well leakage prevention of an igneous rock development area.
Owner:CNOOC ENERGY TECHNOLOGY & SERVICES LTD

Igneous rock wave impedance inversion method based on combined magnetic-seismic low-frequency modeling

The present invention provides a method for igneous rock wave impedance inversion based on combined magnetic and seismic low-frequency modeling. This method comprises the following steps: 1. using multi-scale analysis to strip deep magnetic anomalies and quantitatively obtain residual magnetic anomalies in igneous rocks; 2. analyzing seismic reflection characteristics to characterize the three-dimensional boundary geometry of igneous rocks; 3. performing deep-domain three-dimensional combined magnetic and seismic modeling; 4. constructing a combined magnetic and seismic low-frequency wave impedance model; and 5. performing combined magnetic and seismic wave impedance inversion. This method effectively integrates the respective advantages of magnetic and seismic methods to construct low-frequency and high-resolution wave impedance models of igneous rock development zones, providing a more comprehensive reference for the subsequent detailed description of favorable volcanic reservoirs and the deployment of exploration targets.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Quantitative detection method for oil and gas content of igneous rock

The invention relates to the technical field of oil-gas exploration and reservoir evaluation, and discloses an igneous rock oil-gas content quantitative detection method, which comprises the following steps: S1, rock sample selection and pretreatment: cutting a representative igneous rock sample into a sample with a standard size, and sealing and storing; s2, measuring the porosity and permeability of the sample to obtain pore volume and pore structure information; s3, placing the sample in a high-temperature and high-pressure experimental device, gradually increasing the pressure to target pressure, heating to target temperature, and simulating reservoir temperature and pressure conditions; and S4, under the target temperature and pressure condition, enabling the fluid in the sample to reach a balanced state. By simulating the real formation temperature and pressure conditions, the problem of oil and gas release of closed pores and micropores is solved, accurate quantitative detection of the oil and gas content in igneous rocks is realized, and the method is suitable for various igneous rock types and complex pore structures and ensures that the measurement result is stable and reliable.
Owner:XINJIANG UNIVERSITY

Profile restoration methods, devices, equipment and media

This application provides a method, apparatus, equipment, and medium for profile restoration, relating to the field of geological structure restoration technology. The method includes: determining a deformed region in a target profile to be restored; wherein the target profile is a cross-sectional view of a target region, which is a region that has been intruded by igneous rocks and deformed into gypsum-salt rocks; identifying a reference surface based on the deformed region to determine a target reference surface in the target profile; wherein the target reference surface includes a top interface of the reference surface; performing preliminary restoration of the target profile based on the target reference surface to generate an original profile; wherein the original profile includes the original sedimentary interface of the gypsum-salt rocks; generating a geological structure profile corresponding to the original profile; and performing curve fitting between the top interface of the reference surface and the original sedimentary interface in the geological structure profile to determine the restored profile corresponding to the target profile. This application can effectively solve the problem that existing balanced profile techniques cannot accurately restore geological structure profiles after igneous rock intrusion.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Vertical melting furnace for igneous rock fiber manufacturing

PendingUS20260209099A1FiberCrystallization temperature
The present invention is directed to a vertical volcanic rock melting furnace having a reduced spatial footprint relative to prior art furnaces. The melting furnace includes a top melting section, which raises the temperature of a charge above the liquidus temperature, a middle cooling section configured to reduce the temperature of the melt, and a bottom conditioning section configured to maintain the melt above a crystallization temperature before the melt is distributed to one or more bushing plates to extrude into fibers. The top melting section and the bottom conditioning sections are surrounding by induction coils for inductively raising the temperature of the melt.
Owner:ROCK FIBER INC

Underground hot water resource prediction method and related device

The invention discloses an underground hot water resource prediction method, an underground hot water resource prediction device, underground hot water resource prediction equipment and a computer readable storage medium, and the method comprises the steps: carrying out the data preprocessing based on obtained geological data; carrying out plateau geological structure feature analysis on the basis of a fracture structure data set, a magmatic rock distribution data set, a gravity anomaly data set, a magnetic anomaly data set and an electrical structure data set to obtain graded fracture system parameters, deep heat source parameters and heat flow channel parameters; constructing a characteristic index system based on the graded fracture system parameters, the deep heat source parameters, the heat flow channel parameters and the geothermal display data set to obtain a comprehensive index system; based on the comprehensive index system, the geothermal display data set and the environment correction parameter set, a prediction model is constructed and trained, and a geothermal resource prediction model is obtained; and inputting the to-be-predicted area data into the geothermal resource prediction model to obtain a geothermal resource probability distribution diagram.
Owner:QINGHAI ZHONG COAL GEOLOGY ENG CO

Inematic rock distribution range prediction method and system based on multiple integrals, and medium

The invention discloses an igneous rock distribution range prediction method and system based on multiple integrals and a medium, and the method comprises the steps: determining the general distribution range of igneous rocks, carrying out the whole-region tracking of the top and bottom surfaces, and obtaining an igneous rock top enveloping surface and an igneous rock bottom enveloping surface; the method comprises the following steps: acquiring original seismic data, and performing multiple integration on the original seismic data based on a multiple integration algorithm to obtain a data volume after multiple integration; calculating a transverse gradient attribute based on the frequency-reduced seismic data volume after multiple integration; and according to the transverse gradient attribute, calculating a root-mean-square amplitude attribute between the igneous rock top envelope surface and the igneous rock bottom envelope surface, so that the igneous rock distribution range can be predicted. According to the method, the igneous rock distribution range is quickly and accurately predicted in combination with seismic data multiple integration and transverse gradient attribute methods, and technical support is provided for exploration deployment. The method is particularly suitable for predicting the igneous rock distribution range in a less-drilling-well area.
Owner:CHENGDU NORTH OIL EXPLORATION DEV TECH

Water-rich fire area open pit coal mine side slope safety rock pillar reserving method

The invention discloses a water-rich fire area open pit coal mine slope safety rock pillar reserving method, and belongs to the technical field of slope stability evaluation and disaster prevention and control. The method includes the following steps that the geometrical shape, rock stratum distribution and temperature anomaly area data of an open pit coal mine slope are obtained, and a burning area boundary is delimited by combining historical burning records; establishing a slope geologic model of the water-rich fire rock area through the ascertained boundary and water-rich condition of the fire rock area in the slope; and taking the outermost side point of the edge of the burning area as a starting point, reserving a rock pillar, selecting a numerical value of which the stability coefficient is greater than and closest to Fst, and determining the width of the safety flat plate reserved by the corresponding section. According to the method, the stability rule of the side slope is studied, and an important guarantee is provided for safety production of the surface mine containing the burned rock side slope.
Owner:CCTEG SHENYANG ENG CO

Seismic data processing method, device, equipment and storage medium

The application discloses a kind of seismic data processing method, device, equipment and storage medium, belong to the technical field of seismic exploration.The method is by Fourier transform to first seismic data and seismic wavelet, respectively obtain first spectrum and second spectrum, then based on first spectrum and second spectrum, determine the reflectivity data volume, convert the reflectivity data volume into lithology wave impedance body, again lithology replaces lithology wave impedance body, obtain igneous rock wave impedance body, convert igneous rock wave impedance body into igneous rock reflection signal data, finally, igneous rock reflection signal data is separated from first seismic data.It can be seen from this, the method only removes igneous rock strong reflection signal from seismic data, retains reservoir effective signal, so that reservoir prediction can be carried out based on reservoir effective signal, to improve the accuracy of reservoir prediction.
Owner:PETROCHINA CO LTD

Prospecting method of Zijinshan copper-gold deposit based on surface geology and rock physical properties

ActiveCN118642199BMagnetisation measurementsWater resource assessmentMetallogenyMineralization (geology)
The present invention discloses a prospecting method for the Zijinshan copper-gold deposit based on surface geology and rock properties, which relates to the technical field of prospecting methods and includes the following steps: Step 1: Obtain the spatial position of underground magnetic rock bodies through magnetic field observation and inversion according to the prospecting target; Step 2: Find the old strata and magnetic rock bodies or hidden rock bodies on the surface; Step 3: Infer the maximum mineralization depth through drilling rock physical property testing; Step 4: Predict the mineralization range based on geochemical anomalies, comprehensive geophysical anomalies, and geological anomalies; Step 5: Drill verification and modify the prospecting range; Step 6: Summarize the hydrothermal magma diagenesis and mineralization model. The present invention adopts the above-mentioned prospecting method for the Zijinshan copper-gold deposit based on surface geology and rock properties, identifies the intense alteration zone through core physical property observation, and then determines the location of the ore body by combining geology and other geophysical and geochemical methods; The magnetic susceptibility of the rock in the depth direction reveals the diagenesis and mineralization environment; The magnetic susceptibility of the aeromagnetic three-dimensional inversion infers several hidden igneous rock bodies.
Owner:ZIJIN MINING GROUP CO LTD +1

Method for producing a building material from porous igneous rock and using the building material as an aggregate in the production of concrete

The invention relates to a method for producing a building material in which aggregate particles of porous igneous rock, in particular pumice, are wetted with a liquid component containing graphene oxide and silicon dioxide dispersed in water and subsequently, while in motion, contacted with a fine-grained component containing at least cement and finally dried or processed with a water-cement mixture in a mixer to form concrete. The invention further relates to a building material for producing concrete. The building material comprises aggregate particles of porous igneous rock, in particular pumice, and a coating containing cement, graphene oxide, and silicon dioxide, which is hydraulically hardened on a surface of the aggregate particles.
Owner:RIECKERMANN MATERIALS & TECHNOLOGIES PTE LTD

A predictive method for the height of a fault-sealed air column using cross-sectional stress.

This invention relates to a method for predicting the height of a fault-sealed gas column using cross-sectional stress. Based on the principle that faults, regardless of their lithology, size, or burial depth, are always subject to pressure from the overlying strata and regional stress fields—meaning cross-sectional stress is universally present—this invention establishes a relationship between the magnitude of stress on the cross-section and the height of the hydrocarbon column it can seal. This allows for the prediction of the height of the fault-sealed oil and gas column in all lithological regions, particularly in igneous, metamorphic, and carbonate rock regions. This invention has broad applicability and can solve the problem of determining the height of a fault-sealed hydrocarbon column in special lithological regions.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Method for predicting helium reserves of oil field in igneous rock development area

The invention discloses an igneous rock development area oil field helium reserve prediction method. The method comprises the following steps that a fracture system and an igneous rock channel are identified according to oil field seismic data, geological data and logging data; according to helium isotope proportion analysis, the doping proportion of mantle source helium is calculated; a trap controlled by the fracture system is selected, and the helium migration linear speed of the fracture system is calculated; a trap controlled by an igneous rock wall is selected, and the helium migration point velocity of an igneous rock channel is calculated; identifying a trap control element of each trap in the oil field range, and calculating the reserve volume of mantle source helium in a layering manner; calculating the total reserve of the mantle source helium in the research area according to the trapped distribution in the oil field range; and calculating the total helium reserve of the igneous rock development area oil field according to the average doping proportion of the mantle source helium. The method is high in operation speed, and the calculated helium reserves of the igneous rock development area oil field are more reasonable and reliable.
Owner:CNOOC TIANJIN BRANCH

Full waveform inversion and tomography inversion combined velocity modeling method and device

The invention relates to the technical field of geophysical exploration, and particularly discloses a full waveform inversion and tomography inversion combined velocity modeling method and device, and the method comprises the steps: building an initial tomography velocity model; establishing a full-waveform inversion velocity model in a layering manner based on the initial chromatography velocity model by using the refracted waves and the reflected waves; performing pre-stack depth migration imaging quality control on the full-waveform inversion velocity model; and sequentially performing high-precision chromatography inversion iteration on the full-waveform inversion velocity model to obtain a combined velocity model. According to the full-waveform inversion and tomography inversion combined speed modeling method provided by the invention, the high-precision speed model is established by combining full-waveform inversion and tomography inversion technologies, so that the spatial distribution position and the relatively accurate speed of igneous rock can be inverted, the inversion precision of the igneous rock speed model is improved, and the calculation accuracy of the igneous rock speed model is improved. The space boundary and the position of the igneous rock are finely depicted, the imaging influence of the speed on the periphery of the igneous rock and an underlying stratum is eliminated, and the imaging precision is improved.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Automatic Analysis Method and Device for Geological Events Based on Geological Profiles

This invention discloses an automatic analysis method and apparatus for geological events based on geological profiles. The method includes: (1) reading the geological profile, fault lines, and a list of sedimentary strata in the study area; (2) serializing the surface exposed strata of the profile into a coded sequence; (3) analyzing, reducing, and recording Quaternary sedimentary formation events; (4) analyzing and reducing igneous rock strata and recording intrusion events; (5) detecting faults and determining their types, and then recording the faults and their effects during movement; (6) identifying and recording folds according to the principle of symmetry; and (7) formatting the list of geological events and saving it as a local file. This invention can automatically analyze Quaternary sedimentary events, intrusion events, fault events, and fold deformation events in geological profiles with basic accuracy, and automatically analyze the related strata, with high efficiency and low cost.
Owner:NANJING NORMAL UNIVERSITY