78 results about "Electrical imaging" patented technology

The application discloses a kind of active fault borehole stratum comparison methods combined with high-resolution logging data, it is related to stratum comparison technical field, comprising: first respectively obtaining test fault region and test bottom layer region;Real-time data acquisition is carried out based on electrical imaging logging, and differential analysis model is established;The differential analysis model is optimized, and the ground fault comparison model is obtained;Active fault borehole stratum comparison method is obtained based on the data in ground fault comparison model;The application is used to solve the problem of low precision and efficiency in the existing active fault borehole stratum comparison method.

The application discloses a kind of magnetoacoustic electric imaging method, system, equipment, medium and product, it is related to magnetoacoustic electric imaging field, the method comprises: according to the number of array elements of annular array probe Randomly generate multiple sets of space delay coding;Space delay coding is set on the annular array probe, and the corresponding ultrasonic wave of space delay coding is emitted by annular array probe;The delay of each array element is different, and the ultrasonic wave waveform emitted by each array element is identical;While array element emits ultrasonic wave, the magnetoacoustic electric signal excited by space delay coding is collected by electrode, and the ultrasonic wave emission of each set of space delay coding corresponds to the collection of one magnetoacoustic electric signal;According to each set of space delay coding, corresponding acoustic vibration velocity field is simulated and generated;According to the acoustic vibration velocity field corresponding to all space delay coding, system matrix is determined;According to system matrix and magnetoacoustic electric signal, reconstruct conductivity image, realize magnetoacoustic electric imaging, and the application improves spatial resolution and improves imaging effect.

The application discloses a kind of acoustic-electric tomography image imaging algorithm based on two-point gradient iterative method, and the innovation is to improve the calculation efficiency by two-point gradient iterative method, and the accuracy of image reconstruction is improved by the selection of regularization term.The core of the application is to use the characteristics of acoustic-electric hybrid imaging, that is, when the boundary detection current is applied, the power density data is obtained by using ultrasonic disturbance, so as to obtain the internal data of biological tissue.At the same time, according to the different characteristics of different biological tissue conductivity, different regularization terms are introduced, two-point gradient iterative method is established, and high-resolution reconstruction of biological tissue conductivity is realized.Compared with the traditional acoustic-electric imaging method, the application reduces the calculation and storage cost of multiple observation currents, improves the imaging efficiency.And the iteration process is modified by using a special regularization term, so that the boundaries or geometric characteristics of different tissues can be accurately determined, and the imaging accuracy is improved.

The invention belongs to the technical field of mineral calculation and reservoir evaluation, and particularly discloses an electric imaging logging mineral component quantitative characterization method based on porosity spectrum correction, which comprises the following steps: preprocessing original electric imaging logging data, and generating a high-density pixel image; performing probability density statistical analysis on the pixel value of each depth point in the high-density pixel image to obtain a pixel waveform spectrum; calculating the apparent porosity of each pixel point in the high-density pixel image to generate a pore spectrum; performing pore fluid influence correction on the original electrical imaging data based on the pore spectrum, performing image enhancement to generate a pure mineral pixel waveform spectrum, and performing equalization processing to obtain an imaging mineral probability map; according to mineral content data obtained through core XRD total rock analysis, an imaging mineral spectrum is subjected to quantitative calibration, and distribution cut-off threshold values and pixel point value ranges corresponding to different minerals are recognized and deduced. The method can effectively solve the calculation error caused by the influence of the traditional imaging mineral calculation fluid on mineral calculation.

The invention relates to the technical field of aviation photoelectric imaging, in particular to an aviation photoelectric pod load interface control device and method.The aviation photoelectric pod load interface control device comprises a main controller, a communication control module and a receiving and transmitting switching module, and the main controller is connected with a plurality of subsystem assemblies and a man-machine interaction system; a communication interface of each subsystem assembly is connected with a corresponding input / output interface in the communication control module, a communication interface of a man-machine interaction system is connected with a corresponding input / output interface in the communication control module, and a normal communication control task is completed; and in the maintenance mode, the communication interface of the maintained subsystem assembly is switched to the external interface. According to the invention, the communication interface of the maintained subsystem assembly is switched to the external interface, so that the disadvantage caused by disassembly due to maintenance is avoided, and the maintenance efficiency is improved.

This application discloses a design method for an optoelectronic imaging system with laser protection and privacy protection functions, relating to the field of optoelectronic imaging. The method includes: determining an optimized point spread function based on preset point spread distribution characteristics, target energy divergence, and point spread radius using an optical-algorithm joint optimization framework; determining an initial phase distribution based on imaging parameters using the Gerchberg-Saxton algorithm; adjusting the initial phase distribution using a stochastic gradient descent algorithm, guided by the difference in energy divergence of the point spread function, to determine the optimized phase distribution corresponding to the optimized point spread function; and using the optimized phase distribution to load the phase modulation component of the optoelectronic imaging system. This application can achieve high-quality optoelectronic imaging with laser protection and privacy protection capabilities.

The invention discloses a shale deposition structure automatic identification method and device, and relates to the field of shale oil exploration and development, and the method comprises the steps: obtaining an image of a rock core and an electric imaging logging image corresponding to the rock core; processing and identifying a bedding boundary in the electrical imaging logging image; determining the number of stratification in the core image; determining a corresponding relation between the number of bedding boundaries in the electrical imaging logging image and the number of bedding in the image of the rock core; based on the corresponding relation and the bedding boundary of the electrical imaging logging image of the non-coring stratum, the actual bedding number of the non-coring stratum is determined, and then the sedimentary structure of the non-coring stratum is determined. After the corresponding relation of the bedding boundary between the actual image of the stratum core and the electric imaging logging image corresponding to the rock is determined, the sedimentary structure of the shale stratum can be automatically determined according to the electric imaging logging image, and the actual core does not need to be sampled and manual identification does not need to be carried out. And the automatic identification of the sedimentary structure of the shale stratum can be realized by adopting electric imaging logging.

The invention discloses a three-dimensional electrocardiogram imaging method and device based on a dynamic atrium model and a medium, and relates to the technical field of electrocardiogram imaging, and the method comprises the steps that atrium multi-temporal image data and physiological state related data are collected, and the physiological state related data at least comprise respiratory signals and body position change data; based on the atrium multi-temporal image data, constructing an initial dynamic atrium model in combination with an adaptive grid optimization technology; performing form and position optimization on the initial dynamic atrium model through a self-adjusting geometric optimization algorithm by using the physiological state related data; generating an electrical activity transfer matrix based on the optimized dynamic atrial model, wherein the electrical activity transfer matrix is used for describing transfer characteristics of atrial electrical activity; based on the electrical activity transfer matrix and the body surface potential signal, three-dimensional electrocardiogram imaging is achieved through electrocardio imaging inverse problem solving. According to the invention, the solution precision of the ECGI inverse problem can be improved.

The present application relates to a kind of microfracture width calculation method and system based on electric imaging plate model, it includes: based on plate formation model, the fracture width of plate formation, angle, length and mud resistivity, matrix resistivity electric signal response are obtained;From the electric signal response result, the response law of fracture parameter of electric imaging is extracted, and the fracture width representation formula of the fracture angle of the fracture position based on resistivity disturbance rate and electric imaging extraction is obtained according to the response law of fracture parameter;After electric imaging instrument calibration, the final resistivity fracture width calculation result is obtained.The present application can solve the problem that the calculation error of fracture of 100 microns level is larger using traditional fracture width calculation formula, and can be widely applied in the field of petroleum geological exploration.

This application relates to the field of optoelectronic imaging technology, specifically to an image sensor, imaging device, and imaging method. The image sensor includes a pixel array, which comprises multiple functional units arranged in an array. Each functional unit includes at least two pixel sub-units. Each pixel sub-unit includes at least two polarization pixels and at least one spectral pixel. The spectral pixel includes a first photosensitive pixel layer and a narrowband filter layer. In each functional unit, the narrowband filter layer of the spectral pixel corresponding to the at least two pixel sub-units has a different center wavelength. This application enables efficient acquisition of polarization and spectral information through a single exposure and effectively reduces device size and manufacturing costs.

An electrostatic charge image developing toner set contains a white toner that contains white toner particles including a binder resin, a white colorant, and a release agent, and a non-white color toner that contains color toner particles including a binder resin, a color colorant, and a release agent, in which, in observation of cross sections of the white toner particles and the color toner particles, in a case where a proportion of an area of a domain of a release agent present in a surface layer region from a surface of the white toner particles to a depth of 1 μm or less with respect to an area of all domains of the release agent present in a cross section of the white toner particles is represented by WW, and a case where a proportion of an area of a domain of a release agent present in a surface layer region from a surface of the color toner particles to a depth of 1 μm or less with respect to an area of all domains of the release agent present in a cross section of the color toner particles is represented by WC, a relationship of WC<WW is satisfied.

A large-aperture reflective zoom and laser communication integrated camera is disclosed, relating to the fields of optoelectronic imaging and laser communication technology. It addresses the technological gap where liquid zoom lenses cannot be applied to large-aperture RC systems, and the problem of relying on additional components for integrated visible light imaging and laser communication, making it difficult to balance lightweight design and high performance. The camera consists only of a primary mirror, a liquid zoom lens array, a grating film, a visible light detector, and an infrared detector. The front of the liquid zoom lens integrates a multi-layer liquid zoom lens array, with each layer having a different focal length. Independent drive circuits electrically control and adjust each lens layer to eliminate aberrations and adjust the focal length for optical systems of different apertures. The grating film on the back exhibits high reflectivity to visible light and high transmittance to 1550nm laser light, enabling visible light to form an RC structure imaging optical path, while the laser light is transmitted to complete communication. This invention can be widely applied in aerospace, aviation, and ground observation scenarios.

The application discloses a method, device and equipment for identifying sweet spots of shale oil in a salinized lake basin. The method comprises the following steps: firstly, determining a rock structure factor of a stratum based on a natural gamma curve, volume density logging data and skeleton density logging data of the stratum, so as to determine the lithology of the stratum and identify reservoir rock layers in the stratum based on the rock structure factor; then, determining a lamination index of the rock in the stratum based on electrical imaging logging data, so as to identify source rock layers in the stratum based on the lamination index; and finally, identifying a sweet spot development section of the shale oil in the salinized lake basin based on the reservoir rock layers in the stratum and the source rock layers in the stratum. The method can quickly identify the sweet spot development section of the shale oil in the target area, and provides a basis for later oil and gas development.

The application provides an electrical imaging well logging completion method and device and computer equipment, and belongs to the technical field of well logging. The method comprises creating a mask of a current well logging image according to a known region and a missing region in the current well logging image; performing pixel inference and iterative completion of the missing region on the well logging image and the mask based on an image completion model to generate a well logging image after completion of the missing region, wherein the image completion model is obtained by performing training processing on a constructed neural network for performing pixel feature extraction and pixel dependency capture based on the well logging image and the mask. The method performs iterative completion of the missing region in the well logging image based on the image completion model, performs mask updating once in each iteration, gradually optimizes the image repair result through multiple rounds of operation, so that the image completion model is suitable for completion of the well logging image with multiple missing scales, and the well logging image after completion has high accuracy and no artifacts.

The invention provides an electric imaging logging-based dense glutenite micro-crack automatic identification method, which comprises the steps of 1, preprocessing electric imaging logging original data, 2, carrying out interpolation restoration on blank stripes between polar plates in an electric imaging image, 3, carrying out sliding processing on a whole-well-periphery dynamic imaging image, and 4, carrying out sliding processing on the whole-well-periphery dynamic imaging image. The method comprises the following steps of 1, setting a feature extraction algorithm and corresponding different radiuses, 2, marking a training set, 3, setting a classifier, 4, training the classifier, 8, calculating parameters of the microcracks, and 9, generating a result map. The method provides powerful technical support for reservoir evaluation, exploration and development of compact glutenite.

The embodiment of the invention provides a fractured anticline structure area fracture direction step-by-step rapid judgment method and device, and the method comprises the steps: firstly collecting core data, logging data, electric imaging logging data and other data, and completing small layer division comparison and fracture direction planar graph and profile graph based on electric imaging logging; and based on the relationship between the crack direction and the fault direction, dividing the crack into a fault-related crack and a wrinkle-related crack. Further, the directions of the two types of fractures are judged respectively, and the directions of the fractures related to the fault are judged according to the position plane relation between the fractures related to the fault and the fault; and for the fold-related crack, judging the direction of the fold-related crack according to the longitudinal relationship between the fold-related crack and the neutral surface. The method can be used for cracks with different scales, is simple to operate, and can quickly judge the crack directions of different structural parts.

This application provides a method, apparatus, and computer equipment for repairing missing areas in well logging electrical imaging, belonging to the field of oil and gas exploration and development technology. The method includes: preprocessing the obtained current well logging electrical imaging image and creating a mask for the missing areas in the preprocessed image; inputting the preprocessed image and the mask into a pre-constructed completion model to fill the missing areas in the image, and outputting a completed image. The completion model is obtained by training an initially constructed denoising diffusion probability model in stages. The network used for denoising inverse diffusion in the completion model is a vector quantization variational autoencoder, and a noisy image is introduced as prior information of the known region to constrain the denoising inverse diffusion process. This method, combining a denoising diffusion probability model, a vector quantization variational autoencoder, and prior information of the known region based on the noisy image, achieves accurate filling of blank strips.

To provide a manufacturing method of a toner for electrostatic charge image development capable of producing a toner for electrostatic charge image development with a narrow charge amount distribution and excellent charge stability.SOLUTION: A manufacturing method of a toner for electrostatic charge image development includes: a step 1 of obtaining an aqueous dispersion liquid of toner particles by agglomerating and fusing resin particles in an aqueous medium; and a step 2 of filtering the aqueous dispersion liquid of toner particles obtained in the step 1 and drying it using a flash dryer. In the step 1, the ester group concentration of the resin constituting the resin particles is 5 mmol / g or more and 15 mmol / g or less.SELECTED DRAWING: Figure 1

The invention relates to the technical field of logging data processing, and particularly discloses an electric imaging logging reservoir space identification method and system based on a longest communication path, and the method comprises the steps: converting an electric imaging logging image of a target region into a binary image, calculating the transverse longest communication path length and the vertical longest communication path length of each pixel point in the binary image; determining a middle-low angle crack image of the target area based on all the transverse longest connected path lengths, and determining a high angle crack image of the target area based on all the vertical longest connected path lengths; and determining a corrosion hole image of the target area according to the binary image, the medium-low angle crack image and the high angle crack image. According to the method, the separation of the crack image and the corrosion hole image of the electric imaging image can be realized, the original form of the crack image and the corrosion hole image is maintained to the greatest extent, the distribution of the reservoir space is well described, and a basis can be provided for the fine evaluation of the reservoir pore structure.

The invention provides a maintainable logging electrical imaging auxiliary polar plate, and relates to the technical field of petroleum well logging. The logging electrical imaging auxiliary pole plate comprises an auxiliary pole plate body, a cover plate, a plurality of electrode buckles and a plurality of pole buckle connecting assemblies, an accommodating groove, a connecting via hole and a plurality of mounting sleeve holes are formed in the auxiliary polar plate body, and one end of a connecting wire of the electrode buckle penetrates through the connecting via hole and enters the accommodating groove; a pole buckle connecting assembly and an electrode buckle are detachably arranged in each mounting sleeve hole, the electrode buckles are detachably arranged in the mounting sleeve holes through the corresponding pole buckle connecting assemblies, each electrode buckle is provided with an electric connecting end and a conductive end, and the electric connecting end of each electrode buckle is connected with one end of the corresponding connecting wire; the cover plate is used for covering the containing groove to form a sealed containing cavity, and the containing cavity is used for containing balance oil. According to the maintainable logging electrical imaging auxiliary polar plate, the problem that in the prior art, an electrode buckle is fixedly poured on an auxiliary polar plate and cannot be maintained, so that the maintenance cost of a logging imager is high is solved.

The invention provides a reservoir productivity prediction method and electronic equipment, and belongs to the technical field of petroleum geophysical exploration, and the method comprises the steps: calculating reservoir physical property parameters based on natural gamma logging information and interval transit time logging information; based on the electric imaging logging information, reservoir high-conductivity fracture parameters are calculated; calculating near-well far-end crack parameters based on acoustic remote detection logging information; and on the basis of the reservoir physical property parameters, the high-conductivity fracture parameters and the far-end fracture parameters, the comprehensive productivity logging index is constructed, the purpose of improving the reservoir productivity comprehensive prediction precision is achieved, operation is simple and rapid, and a basis is provided for reservoir gas testing layer selection, development and utilization.

The invention relates to a compressibility evaluation method based on multi-source crack imaging logging data fusion, which comprises the following steps of: acquiring multi-source logging data and identifying well wall cracks, realizing cross-scale acquisition of near-well crack and far-well crack information, and forming a crack basic data set; constructing a multi-source logging data fusion and crack three-dimensional network, and fusing well wall crack parameters of a near-well area and crack imaging results of a far-well area to represent crack space distribution in a target detection range by taking a shaft as a center; rock mechanical parameters based on sound wave and density logging are calculated; and calculating a brittleness index and a compressibility index, integrating the brittleness index, the fracture network density, the development degree and the ground stress difference ratio, constructing a reservoir fracture comprehensive compressibility evaluation model, and completing the evaluation of the fracture compressibility. The near-well electrical imaging data and the far-well acoustic imaging data are deeply fused, the rock mechanical parameters are fused and calculated, and the problem that in the prior art, crack features and the rock mechanical parameters are mutually separated is effectively solved.

The application discloses an active electrode system for magnetic particle magneto-acoustoelectric imaging, comprising an active electrode module, an ultrasonic excitation module and an intelligent controller module. The active electrode module comprises six pairs of active electrodes, each of which is composed of an electrode sensor and a signal conditioning module; the signal conditioning module comprises a preamplification circuit, a filter circuit and a secondary amplification circuit; the intelligent controller module controls the ultrasonic excitation module to rotate around the measured object and emit ultrasonic excitation, and controls the corresponding active electrode pair to collect magnetic particle magneto-acoustoelectric signals. The application provides an active electrode system capable of improving the quality of magnetic particle magneto-acoustoelectric signals, realizing efficient and automatic multi-angle data collection, improving imaging efficiency and solving the problems of low signal-to-noise ratio of magnetic acoustic electric signal collection, insufficient adaptation of wideband and high impedance signal source in the prior art and the like.

The application discloses a conductivity distribution image prediction method, system, device, medium and product, relates to the field of magnetic acoustic electric imaging, and comprises the following steps: randomly generating multiple conductivity distribution images with different geometric shapes, and generating an excitation sound field with a rotation angle of 0 to plus or minus 88 degrees based on a limited-angle rotation scanning mode; training a conductivity model by taking the magnetic acoustic electric signal corresponding to the excitation sound field as input and taking the conductivity distribution image as output, and determining a trained conductivity network; the conductivity model comprises multiple sub-networks, and each sub-network comprises a denoising diffusion probability model; acquiring a current limited-angle magnetic acoustic electric signal based on the limited-angle rotation scanning mode; inputting the current limited-angle magnetic acoustic electric signal into the trained conductivity model, and outputting a predicted conductivity distribution image, so that the effectiveness of imaging an object with irregular conductivity distribution and the credibility of reconstructing the conductivity distribution image are improved.

The present application relates to the technical field of carbonate reservoir evaluation, and particularly relates to a carbonate reservoir heterogeneity analysis method, system, device and storage medium, the method obtains core petrophysical experiment data, conventional logging data and FMI electrical imaging image data, and performs data fusion to obtain an electrical imaging porosity spectrum two-dimensional curve; then, by performing feature extraction on the electrical imaging porosity spectrum two-dimensional curve, a porosity spectrum heterogeneity factor, a borehole porosity heterogeneity factor, a dissolution index parameter and a final carbonate reservoir heterogeneity comprehensive factor are determined; by comprehensively considering various data and information, quantitatively evaluating reservoir characteristics, constructing a comprehensive factor and other means, strong technical support is provided for in-depth analysis of carbonate reservoir heterogeneity, and the accuracy and reliability of carbonate reservoir heterogeneity analysis and evaluation are high. The present application solves the problem of poor accuracy of carbonate reservoir heterogeneity analysis in the prior art.

The invention discloses an electrode position optimization method for magnetic nanoparticle concentration magneto-acoustic-electric imaging, which comprises the following steps of: presetting a plurality of groups of electrode number candidate values at the boundary of a biological tissue, and evaluating reconstructed image results under different electrode numbers to determine the optimal electrode number; taking the center position of the electrode as an optimization variable, and constructing an electrode position optimization index based on a sensitivity matrix; a deep learning model based on a deep neural network is constructed, and the model takes the electrode position optimization index as input and takes the electrode position parameter as output; and training the deep learning model, inputting an electrode position optimization index target value to the model after training is completed, and outputting a corresponding electrode position coordinate. According to the method, the precision and stability of the reconstructed image can be improved, the repeated simulation and trial-and-error cost is reduced, and the electrode optimization efficiency is improved.

The invention relates to a well logging electric imaging blank strip filling method and system and a computer program, and the method comprises the steps: carrying out the preprocessing of the electric imaging data of a whole well section, and obtaining a plurality of sub-data files with the same size; determining the number of second terminals, and sending the plurality of sub-data files to the second terminals; sending a data filling instruction, controlling the second terminal to carry out filling processing on the received sub-data files, and feeding back a filling processing result of each sub-data file after the filling processing is completed; and in response to the received filling processing results of all the sub-data files, performing post-processing on all the filling processing results, and further obtaining a full-well-section filling result in a heterogeneous calculation mode. By means of the method, the calculation efficiency of logging electrical imaging long well section data blank strip filling can be improved, the hardware limitation of the prior art is broken through, and logging electrical imaging blank strip filling can be rapidly and effectively carried out.

To provide a method for manufacturing an electrostatic charge image developing toner which exhibits excellent low-temperature fixability even in high-speed printing.SOLUTION: A method for producing a toner for electrostatic image development includes a step of melt-kneading at least a crystalline vinyl resin C, an amorphous resin A, and a release agent using an open-roller type kneader, and a step of pulverizing the kneaded product obtained in the previous step.SELECTED DRAWING: None

The present application pertains in one embodiment to a sensor sub for use in a drillstring having a drill bit on a distal end for drilling a wellbore in a formation. The sensor sub comprises a tool body having a longitudinal axis; a first pocket on the tool body wherein said first pocket extends radially inward from an outer surface of the tool body and a second pocket on the tool body wherein said second pocket extends radially inward from an outer surface of the tool body. The first pocket comprises a first sensor selected from a type consisting of resistivity sensor, a sonic sensor, an ultrasonic sensor; a pressure sensor; an electrical imaging sensor; a gamma sensor; a density sensor; a neutron sensor; an acoustic sensor, an accelerometer, a magnetometer, and a gyroscope. The second pocket comprises a second sensor selected from a type consisting of resistivity sensor, a sonic sensor, an ultrasonic sensor; a pressure sensor; an electrical imaging sensor; a gamma sensor; a density sensor; a neutron sensor; an acoustic sensor; an accelerometer, a magnetometer, and a gyroscope. The first sensor and the second sensor are each a different type. A control unit may be operably connected to the first sensor and the second sensor such that the control unit is configured to determine the type of sensor, send data to the first and second sensor, and receive data from the first and second sensor.