75 results about "Geophysical prospecting" patented technology

This invention relates to the field of geophysical exploration and oil and gas geological analysis technology, and discloses a method for predicting fractured reservoirs in carbonate buried hills based on geological guidance and multi-scale fusion. The method includes: constructing a three-dimensional geological guidance constraint body using paleogeography and fault systems as geological priors; characterizing the fracture response mechanism using Gabor wavelet frequency division and structural tensor; constructing sensitive attributes and predicting the fracture body using a multi-branch convolutional neural network that fuses multi-source seismic attributes; and calculating the fracture complexity index based on the predicted fracture body to classify and zone the buried hill fractures. This invention introduces geological guidance constraints to improve the geological consistency of the prediction results; utilizes multi-scale Gabor frequency division and structural tensor analysis to achieve multi-scale fracture characterization; enhances model interpretability and prediction accuracy by fusing multi-source attributes through a multi-branch convolutional neural network; and achieves quantitative reservoir classification through the fracture complexity index, effectively guiding well location deployment and drilling decisions.

The application discloses a kind of electric source short offset distance transient electromagnetic pseudo three-dimensional inversion method, system, equipment and medium, and it is related to geophysical prospecting technical field.The method includes: the multiple source data is normalized, and based on the data after pre-processing, underground space is divided and valued using Gaussian difference method, and initial three-dimensional model is constructed;Based on the initial three-dimensional model, nonlinear conjugate gradient algorithm is used for pseudo three-dimensional inversion, and the value of transverse and longitudinal constraint factor is adaptively adjusted in the inversion process, and inversion data is obtained;According to the inversion data, the three-dimensional imaging information of underground electrical structure is extracted;The three-dimensional imaging information is used for geological interpretation and resource assessment.The application can establish initial three-dimensional model by Gaussian interpolation, carry out efficient inversion calculation using nonlinear conjugate gradient algorithm, and adaptively adjust transverse and longitudinal constraint factor in the inversion process, to realize high-precision pseudo three-dimensional imaging of underground electrical structure.

The application discloses a small sample magnetic anomaly data enhancement and boundary identification method and system based on StyleGAN2-ADA, and relates to the field of geophysical exploration.The method comprises the following steps: establishing an initial small sample set; constructing a generative adversarial network based on adaptive discriminator augmentation (ADA), training a generator by using the initial small sample set, and generating a large amount of high-fidelity magnetic anomaly data; calculating boundary labels for the generated data by using a physical operator fusion strategy, and constructing a large-scale labeled training set; constructing a U-Net boundary identification network, pre-training the U-Net boundary identification network by using the large-scale labeled training set, fine-tuning the U-Net boundary identification network by using measured data, and finally outputting the magnetic anomaly boundary position of a target to-be-measured area.The application solves the problems of a lack of measured samples and high labeling costs in deep learning in magnetic exploration, realizes high-quality expansion of data under small samples, and improves the generalization ability and noise resistance of the boundary identification network to complex geological features.

The utility model relates to the technical field of downhole geophysical prospecting, specifically a kind of instrument shock absorption type storage device for downhole geophysical prospecting. Including: storage component, the storage component includes box, lid, storage, shock pad and sealing element, the lid rotationally connected on box, storage is set to the inside of box, shock pad is fixedly connected at the bottom of box, the sealing element is set to the outside of box;Protective component, the protective component is set to the inside of box and lid, and protective component includes buffer, foam pad, magic tape, limiting piece and pull rope, buffer is set to the inside of storage, foam pad is set to the inside of box and lid, magic tape is set to the outside of foam pad, limiting piece and pull rope are all set to the outside of buffer. The utility model can avoid that instrument is extruded harm, utilizes lining bushing and is wrapped with instrument protection, can reduce the impact force from each direction, improves the protection effect to instrument.

The present application relates to the technical field of metal ore geophysical exploration, and discloses a magnetic logging identification method suitable for tungsten-molybdenum polymetallic ore in the south Qinling tectonic belt, which comprises the following steps: step 1, drilling holes in the exploration area, and carrying out nine-parameter geophysical logging on each drilling hole, wherein the nine parameters include natural gamma, natural potential, apparent resistivity, magnetic susceptibility, apparent polarization rate, magnetic measurement three components, hole inclination, hole diameter and well temperature. The magnetic logging identification method suitable for tungsten-molybdenum polymetallic ore in the south Qinling tectonic belt establishes a multi-parameter collaborative logging identification system suitable for tungsten-molybdenum polymetallic ore in the south Qinling tectonic belt, uses parameters such as natural gamma and apparent resistivity to divide the lithology, uses apparent polarization rate and magnetic susceptibility as the core to identify the mineralization zone, uses the magnetic measurement three components to judge the blind ore body, realizes the integrated exploration process of 'lithology division-mineralization zone delineation-blind ore body identification', and effectively overcomes the defects of single parameter and insufficient information utilization of the traditional method.

The utility model discloses a kind of geophysical prospecting multi polarization receiving electrode devices, it is related to electrode device technical field, including: electrode;Upper fixed disc, fixed in the top of the electrode;Lower fixed disc, fixed on the electrode and located below the upper fixed disc, gap is formed between the lower fixed disc and the upper fixed disc, the diameter of lower fixed disc is less than or equal to the diameter of upper fixed disc;Multiple movable slots, along axial direction and be opened in the radial direction of the lower fixed disc;Plug pin, movably inserted in the movable slot;Limit cap, fixed in the top of the plug pin, and the width of the limit cap is greater than the slot width of the movable slot;The utility model is with the aid of the unique structure of plug pin and movable slot, automatically tilt to different directions when plug pin inserts geological medium, can flexibly adjust insertion posture according to geological relief, soil tightness, and form three-dimensional limit to opposite electrode after being closely contacted with geological medium.

The utility model discloses a geological geophysical exploration equipment cable protection device, including the support of triangular stable structure, rotation axis and detachable bearing tray composition, bearing tray one side connection winding bottom disc is used for cable storage, and the other side welds the drive disc with recess, the bottom installation motor of support passes through chain drive arrangement, and is equipped with snail type shell protection, and the auxiliary disc sets the hole and the light reflection groove, and the support is equipped with handle, antiskid pad, electric torch and quick -release board with brush. The utility model discloses through triangular support ensures stability, and detachable bearing tray structure is convenient for cable loading and unloading, and snail type shell provides comprehensive protection, and motor and manual hole realize double -mode wire winding, and insulating handle and antiskid pad enhance security and portability, and integrated electric torch satisfies the dark environment operation demand, and brush module automatic cleaning cable, and the light reflection design promotes night identification, and the whole realization cable protection, high -efficient collection and puts and the environmental adaptation integration function, and the geological exploration operation efficiency and security are improved significantly.

The application discloses a surveying-based binary structure small watershed division method and system, and particularly relates to the field of watershed division. Basic data processing of the application includes collecting and preprocessing topography, remote sensing and other data, establishing a basic database, converting vector contour line data into DEM and filling in depressions, generating a non-depression DEM, determining water flow direction by using a D8 algorithm, calculating cumulative flow, and generating a river network. The river channel is converted into a vector runoff network, the sub-watershed range is extracted and mapped, the outcrop point of underground river or karst spring is taken as a corrosion reference, the watershed outlet is determined in combination with the main river channel of a large river, and a complete correlation system is constructed. Finally, the development of the underground water system pipeline is determined through hydrogeological investigation, geophysical prospecting, drilling and pumping test, the results of comprehensive investigation, geophysical prospecting, drilling and pumping test are comprehensively considered to accurately correct the boundary of the underground water system, and the underground water system distribution map conforming to the actual conditions is formed in combination with remote sensing images and administrative division maps.

The application discloses a karst evaluation unit construction and feature factor extraction method, relates to the technical field of karst geological disaster prediction and evaluation, and is based on topography, geology, hydrology, geophysical prospecting, drilling and human activities and the like to perform spatial dispersion on a research area based on multi-source data, so that initial spatial units for bearing karst action and underground cavity information are formed. The initial units are divided into multiple types of karst evaluation units by identifying karst structure features, underground cavity distribution, roof-soil combination relationship and hydrological connectivity. Further, attributes such as karst development intensity, cavity geometric features, roof stability, hydrological disturbance and surface load change are extracted, and a unified feature factor system is constructed. The method can provide a standardized spatial unit basis for karst collapse susceptibility or risk analysis.

The integrated prevention and treatment method of the burned rock water disaster of the present application proposes the concept of combination of resistance and permeation and advanced active prevention and treatment, breaks the thinking stereotype of traditional coal seam roof water disaster independently relying on water drainage and full section curtain interception, and creates a new concept of active comprehensive prevention and treatment of dynamic supply interception, drainage and dry static reserves, and combined use of local bypass flow. The problems of multiple solutions of geophysical prospecting and limitations of drilling are scientifically solved, and for the first time, the fine quantitative delineation of the strong water-conducting burned rock zone is realized from two-dimensional range to three-dimensional water-rich structure. A gravity drainage of an inclined borehole, a roadway catchment, and a gravity flow of a catchment channel form a passive underground water drainage link. The difficulty of drainage and dryness in treating the burned rock water disaster is reduced, and due to the use of the passive underground water drainage link of the gravity flow of the catchment channel, the cost is further reduced. The collected clean water flows into the external clean water warehouse, realizes repeated use, reduces resource waste, and is suitable for large-scale use and promotion in the field of coal mine water disaster prevention and treatment technology.

The application discloses a buried pipeline positioning geophysical prospecting method based on gas acoustic waves, and the method comprises the following steps: obtaining pipeline preset information of a to-be-detected operation area; generating a pipeline estimated path according to the pipeline preset information, and determining a corresponding target acoustic excitation mode through a preset excitation parameter library; generating a control instruction to inject a coded acoustic signal into the pipeline based on the target acoustic excitation mode, and synchronously obtaining response signal data collected by a sensor array moving along the pipeline estimated path; calculating and obtaining a planar trajectory of the pipeline in the ground through a beam forming algorithm based on the response signal data; obtaining the buried depth of the pipeline through a preset propagation attenuation model based on the coded acoustic signal and the response signal data; and outputting a pipeline detection result based on the planar trajectory of the pipeline in the ground and the buried depth of the pipeline. The application realizes high-precision and anti-interference pipeline detection by using the recognizability of coded acoustic waves and the spatial resolution capability of array beam forming.

This invention relates to the field of geophysical exploration technology, specifically to a multi-channel adaptive subtraction method and system for protecting target strata. The method includes optimized layer protection multi-channel adaptive subtraction processing after combining multi-channel layer protection models (masks). This method solves the problem that since multiple waves and primary waves in the original data do not completely satisfy the orthogonality condition, the effective signal is usually damaged during the adaptive subtraction process. It has the technical effect of effectively protecting the primary wave of the target strata and achieving a significant optimization and improvement in the matching subtraction results.

The application discloses a kind of mass geophysical prospecting data storage retrieval and drawing method in mobile terminal map under offline state, it includes: (1) mobile terminal geophysical prospecting data is stored using embedded relational database sqlite, and table is respectively built according to project, view level;(2) when map program runs, according to the level of map display, view range, project authority in lower level, retrieve, render data in the data table of corresponding level;In high level range, only render all line data that meet the conditions according to project authority;(3) when user carries out map zooming, moving operation each time, first retrieve operation of geophysical prospecting data is carried out, according to the result of retrieval, drawing is carried out in batch in different layers;(4) the default map range of first opening of map application is controlled.The application can bring very intuitive efficiency improvement to construction planning management, vehicle mobile navigation, efficient production organization of geophysical prospecting project, the prospect is very broad, and it has very important significance.

The application discloses a kind of shallow buried covering type karst leakage path detection method.It includes the following steps, S1: the karst distribution characteristics of region is interpreted by remote sensing, and the initial target area is determined in combination with hydrogeological survey;S2: the target area is detected by AMT on a large scale, and the low resistivity anomaly zone is identified;S3: based on AMT result, the abnormal band is scanned by encryption using GPR, and the bedrock surface and karst shape are drawn;S4: based on the upstream of the karst groundwater seepage path judged preliminarily by hydrogeological survey, throw tracer, and set receiving point downstream to dynamically monitor the tracer concentration in water sample to determine the connectivity between the injection point and the receiving point;S5: integrate remote sensing, geophysical prospecting and tracer data, construct three-dimensional groundwater flow-solute transport model, and output groundwater runoff network.The application has the advantages of improving detection accuracy, reducing cost and improving detection efficiency.

The application discloses a method for obtaining soil strength indexes based on soil layer geophysical prospecting data, and comprises the following steps: S1, obtaining the test depth and equivalent shear wave velocity of different measuring points in a target site; obtaining the drilling samples of each measuring point at the corresponding depth, obtaining the corresponding internal friction angle and soil type; preprocessing the collected data to obtain a comprehensive data set; S2, selecting the test depth and equivalent shear wave velocity in the comprehensive data set as basic features, constructing derived features, performing feature standardization, and obtaining a data set; dividing the data set into a training set and a test set; S3, based on the training set obtained in S2, optimizing and training the soil classification model and the internal friction angle prediction model; S4, obtaining the soil strength index internal friction angle based on the soil classification model and the internal friction angle prediction model obtained by the training in S3. The method of the application realizes high-precision prediction of soil strength indexes by constructing derived features and introducing physical range constraints.

The present application belongs to the field of deep space exploration and geophysical exploration, and particularly relates to a method and device for detecting lunar low-frequency electromagnetic field, aiming at solving the problem of unstable potential measurement in the lunar surface rare plasma environment. The present application comprises: deploying first, second and third electric field sensor probes in an orthogonal configuration on the lunar surface; applying a controllable bias current to each probe to actively adjust and stabilize the particle exchange process between the probe and the surrounding plasma, so that it works at a stable working point which is not sensitive to environmental disturbance, thereby reliably obtaining the accurate potential at the position of each probe; finally, by calculating the potential difference between the first probe and the second probe, and between the first probe and the third probe, the first and second electric field components which are orthogonal to each other are determined respectively. The present application overcomes the interference of the special lunar surface environment on potential measurement, and realizes stable and reliable detection of the lunar low-frequency electric field.

This application relates to petroleum geophysical exploration technology, disclosing a method, apparatus, electronic device, and storage medium for identifying fractured-vuggy reservoirs. The method for identifying fractured-vuggy reservoirs includes: acquiring seismic data of the fractured-vuggy reservoir to be identified and inversion data obtained based on the seismic data; matching the fractured-vuggy reservoir to be identified with a preset fractured-vuggy structure template based on the seismic data and the inversion data, wherein each fractured-vuggy structure template includes feature data obtained from seismic forward modeling of a fractured-vuggy structure and feature data obtained from post-stack impedance inversion based on the data obtained from seismic forward modeling; and predicting the fractured-vuggy filling structure of the fractured-vuggy reservoir to be identified based on the matched reservoir structure template. This method is at least beneficial for efficiently and quickly identifying the fractured-vuggy filling structure of fractured-vuggy reservoirs, thereby enabling better well location deployment and well trajectory design.

The application discloses a composite detection device based on multi-view field while-drilling advanced geological prediction and a construction method for processing geological disasters. The composite detection device and the construction method for processing geological disasters can combine drilling and geophysical prospecting, and can effectively and timely and accurately predict water and mud inrush disasters in front. The composite detection device comprises a drill bit, a drilling system and a geophysical prospecting system. The drilling system at least comprises a drilling core support structure, a drilling driving structure and a continuous monitoring control structure. The drill bit is arranged on a drilling end of the drilling core support structure through the drilling driving structure. The geophysical prospecting system is arranged on the drilling core support structure along a drilling direction. The drill bit drills and deflects through the drilling driving structure under the control of the continuous monitoring control structure. The drilling parameters of the drill bit are monitored, transmitted and analyzed through the continuous monitoring control structure. The geological parameter information of corresponding positions detected by the geophysical prospecting system is transmitted, analyzed and warned through the continuous monitoring control structure.

The utility model discloses a mountain geophysical prospecting drilling machine embedded oil consumption monitoring devices based on micro flow sensing, including oil consumption monitoring devices, oil inlet pipe and oil outlet pipe, the housing of oil consumption monitoring devices is equipped with positive displacement flow sensor, UPS power module, singlechip module and internet of things module, singlechip module is connected with positive displacement flow sensor, internet of things module electric signal respectively, internet of things module and cloud server wireless communication connection, positive displacement flow sensor is oval gear flow sensor, compares with prior art, the utility model discloses accurate measurement oil volume through positive displacement flow sensor, after the data of singlechip processing, by NB IoT module real -time upload to cloud server, realize the remote automatic monitoring in the accuracy of plus or minus 10%, solved the mountain environment artificial transcription low efficiency, the problem that current equipment can not real -time upload data.

This disclosure relates to the field of petroleum geophysical exploration technology, and particularly to a method, apparatus, device, and medium for strong stacking noise attenuation analysis. The method includes: dividing the original pre-stack seismic data into time windows to obtain target time windows; statistically analyzing the amplitude energy characteristics, velocity characteristics, and frequency characteristics corresponding to the original pre-stack seismic data in each target time window; constructing a dynamic feature matrix based on the amplitude energy characteristics, velocity characteristics, and frequency characteristics; fitting the feature data in the dynamic feature matrix to obtain a stacked noise model; adaptively attenuating the stacked noise model using the original pre-stack seismic data; when the denoised signal does not meet the denoising standard, returning to the step of dividing the original pre-stack seismic data into time windows to obtain target time windows, until the denoised signal meets the denoising standard; and outputting the denoised signal when the denoised signal meets the denoising standard. This invention can improve the accuracy of strong stacking noise attenuation.

This application discloses a seismic data processing method, apparatus, and computer equipment, belonging to the field of geophysical exploration. The method includes: acquiring seismic data; creating a first shared project corresponding to the first seismic data on a seismic data sharing platform; acquiring the data creation environment; and, provided the data creation environment meets security requirements, setting script generation and editing permissions, where editing permissions restrict the scope of members accessing second seismic data. Security requirements include at least one of system requirements and project member requirements; and creating a second shared project corresponding to the second seismic data on the seismic data sharing platform based on the editing permissions. This approach enables the rapid creation of shared projects with low security levels and improves the management efficiency of shared projects with different security levels.

This invention belongs to the technical field of oil and gas geophysical exploration, and relates to a method, system, storage medium, and electronic device for intelligent surface wave suppression of seismic data. The method includes constructing seismic shot gather data containing surface waves and obtaining clean learning labels; building a QAU-Net network architecture based on the U-Net network architecture and introducing an attention mechanism; training a network model for suppressing surface waves; and evaluating the training effect of the network model. This invention improves the accuracy of seismic surface wave suppression.

This disclosure relates to the field of oil and gas geophysical exploration technology, and particularly to a method, apparatus, and computer-readable storage medium for inverting elastic parameters. The method involves acquiring seismic data volumes and sedimentary facies maps of the study area, as well as drilling data from adjacent study areas. The drilling data includes: well logging data from the wells; determining, based on the sedimentary facies map, well logging data matching the characteristics of each sedimentary facies zone in the study area as virtual well logging data; determining the optimal location of virtual wells within each sedimentary facies zone; determining the elastic parameter curves of each virtual well based on the logging data of each virtual well; establishing a facies-controlled low-frequency model of elastic parameters under both longitudinal and transverse constraints based on the optimal location of each virtual well and the corresponding elastic parameter curves; and performing pre-stack facies-controlled inversion based on the seismic data volume and the facies-controlled low-frequency model to obtain the inversion results of the elastic parameters. This method can obtain elastic parameter inversion results in low-exploration areas that better conform to actual geological sedimentary patterns, thereby more accurately characterizing the distribution features of sand bodies.

The application provides a DGTD electromagnetic field acquisition method and device based on high-order central difference, and relates to the technical field of geophysical prospecting, and comprises the following steps: discretizing a target stratum region of a time-domain discontinuous Galerkin method (DGTD) electromagnetic field model in space to obtain polyhedral subdivision grids of each region; obtaining node scalar basis functions and edge vector basis functions of the grid units; performing weighted testing on the edge vector basis functions to obtain a semi-discrete form; performing high-order central difference according to the semi-discrete form to obtain a time-discrete form; the time-discrete form is an electromagnetic field time-domain step formula; obtaining discrete electromagnetic energy corrected by an absorbing boundary condition; obtaining a stability condition; and according to the stability condition and the electromagnetic field time-domain step formula, the electric field intensity and the magnetic field intensity on each edge of the polyhedral subdivision grids are iteratively updated. The method and device provided by the application greatly improve the precision and calculation efficiency of the DGTD method.

The application provides a roadway water disaster detection method and device, a storage medium and a system. The method comprises the following steps: obtaining geological parameters of a roadway to be excavated, and determining drilling information of the roadway to be excavated according to the geological parameters; obtaining a while-drilling engineering parameter and a drill bit state in the process of drilling the drill hole, and obtaining first detection data by using a first electromagnetic wave detector with a first frequency when the drill bit state indicates that drilling is in progress; obtaining second detection data by using a second electromagnetic wave detector with a second frequency when the drill bit state indicates that drilling is paused, the first frequency being greater than the second frequency; and determining whether a water disaster area exists in the roadway to be excavated according to the first detection data, the second detection data and the while-drilling engineering parameter. The application solves the problem that, in the prior art, after geophysical prospecting is completed, drilling verification is required when a water disaster above a roadway is detected, thereby reducing the efficiency of excavation.

This application relates to a method and apparatus for encrypting resistivity data. The method constructs a spatially matched sparse 3D data volume by inserting sparse resistivity data into a dense seismic grid. Utilizing the high-resolution spatial framework of the seismic data, it can better leverage the subsurface structural information contained within the seismic data, allowing the resistivity data completion process to reference a richer spatial context. Furthermore, it introduces a completion technique based on depth image priors, leveraging the powerful feature learning capabilities of deep neural networks to learn the intrinsic structure and texture features of the sparse 3D data volume by optimizing the network's own parameters. Through innovative data integration and deep learning completion strategies, this method effectively overcomes the limitations of existing technologies in processing sparse resistivity data and fusing multi-source data, providing a more accurate and efficient data encryption solution for the field of geophysical exploration.

The utility model relates to a kind of geophysical prospecting detection line portable electrode installation device, including installation shell, intermediate conducting part, geophysical prospecting detection line side connecting terminal assembly and detection electrode side connecting terminal assembly.Use, the electrical cable end portion of geophysical prospecting detection line is clamped by each split jaw of first terminal lug, then is pulled into upper cylindrical jack screwing, the electrical cable end portion of detection electrode is clamped by each split jaw of second terminal lug, then is pulled into lower cylindrical jack screwing, intermediate conducting part is conducted through conducting rod and conducting cable geophysical prospecting detection line and detection electrode, the quick installation connection of geophysical prospecting detection line and detection electrode is realized.The device solves the problem of low installation efficiency, on the one hand guaranteeing connection firm, on the other hand improving installation efficiency.