Azimuth extraction gather consistency processing method

The invention provides an azimuth extraction gather consistency processing method. The main process comprises the following steps: pre-stack gathers of seismic data acquired in two different periods are analyzed; the azimuth is calculated by calculating the positions of shot points and receiver points of common-reflection-point seismic gathers acquired in different periods; and the common-reflection-point seismic gathers of the latter period are extracted according to whether the azimuths are consistent or not by taking the data acquired in the former period as a reference gather and the data acquired in the latter period as a monitoring gather, and observation system degradation is performed. Therefore, the azimuths of the common-reflection-point seismic gathers of the seismic data acquired in the former and latter periods are consistent or close, the influence of anisotropy brought by position inconsistency is reduced, and the consistency between the seismic data acquired at two times ...

First arrival automatic pickup abnormal delay detection method based on azimuthal anisotropy control

The invention provides a first arrival automatic pickup abnormal delay detection method based on azimuthal anisotropy control. The first arrival automatic pickup abnormal delay detection method comprises the steps of performing first arrival automatic pickup on all seismic data; carrying out delay iterative calculation on the automatically picked first arrival to obtain shot point delay time and formation speed; the influence of shot point delay time and offset on first arrival time is eliminated; according to the orientation and offset distance of each detection point relative to the shot point, performing spatial arrangement on the processed first arrival pickup points in a polar coordinate system; according to the terrain complexity, carrying out azimuth interval division on the first arrival pickup point; under the control of a sliding time window, performing distance-based outlier detection on the first arrival time in each azimuth interval, and detecting and deleting first arrival ...

Equipment of drying face paper of preprinting packing box

Seismic data lossy compression method based on blind inversion theory

The invention provides a seismic data lossy compression method based on a blind inversion theory. The seismic data lossy compression method based on the blind inversion theory comprises the following steps: step 1, inputting seismic data corresponding to a current shot number; 2, extracting local seismic data of the current gather in a space window based on a preset space window range in X and Y directions; step 3, local seismic data compression is carried out based on a blind inversion theory; 4, judging whether the sliding window traverses the current gather or not; and 5, judging whether all shot gathers are processed or not. According to the seismic data lossy compression method based on the blind inversion theory, local time-space information of multiple seismic signals is utilized to achieve compression storage of local feature reflection events, the data compression ratio is higher than that of a general lossless compression technology, and the requirement for real-time data processing ...

Relative amplitude-preserved point spectrum analog high-resolution processing method based on improved S-transform

The invention belongs to the geophysical exploration technology, and relates to a relative amplitude-preserved point spectrum analog high-resolution processing method based on improved S-transform. After the acquisition of seismic data, improved S-transform processing is performed on one piece of the seismic data to obtain the two-dimensional time-frequency spectrum of the piece of seismic data, and point spectrum analog high-resolution processing is performed in a time-frequency domain to realize relative amplitude-preserved processing on the seismic data. By performing wavelet amplitude spectrum analog processing on the point spectrum in the two-dimensional time-frequency spectrum of the seismic data, the wavelet amplitude spectrum of all sampling point time of the piece of seismic data can be obtained, namely, the two-dimensional wavelet amplitude spectrum of the time-frequency domain. High-resolution seismic data can be obtained by designing a two-dimensional deconvolution operator ...

Multi -functional installing support of electric power supervisory equipment

The utility model discloses a multi -functional installing support of electric power supervisory equipment, including connecting piece, linking arm and stationary blade, the one end and the connecting piece of linking arm are connected, and the other end is articulated with the stationary blade, the stationary blade is installed and is located at pole, eave, wall etc. And electric power supervisory equipment installs on the connecting piece, can be according to actual conditions, and the installation angle of adjust connection arm and stationary blade can adapt to multiple installation occasion, need not make to order according to installing, simple structure, the commonality is strong, can batch production, can reduce manufacturing cost and construction cycle.

Extremely-shallow layer absorption compensation method based on viscoelastic medium model

Provided is an extremely-shallow layer frequency compensation method based on a viscoelastic medium model. The scheme is as follows: the quality factor Q of an extremely shallow layer is calculated with use of micro-logging data based on the spectral ratio of direct waves of two adjacent cannons (referred to as a spectral ratio method); the velocity v of longitudinal wave is calculated based on the difference between the first-arrival time of the direct waves of two adjacent cannons; a mathematical empirical formula of Q and longitudinal v is fitted out by analyzing the relation between Q and v of the extremely shallow layer; tomographic inversion is performed on the first-arrival time of refracted waves of a reflected seismic record to obtain a speed model of the extremely shallow layer; a Q value model of the extremely shallow layer is further obtained based on a formula of the relation between Q and v of the extremely shallow layer obtained through analysis of the micro-logging data; ...

Micro power consumption intelligent sensing method and device for metering appliance with rotary parts

This is a mini power consume intelligent sensor with rotating elements used to the measuring instrument and its working method. In the measuring instrument are installed with exchange members and processor, and to supply electric power by the processor to the exchange members, while the processor, and to supply electric power by the processor to the exchange members, while the working course of processor at least include two time intervals: The time interval t3: the processor is common working condition, the working frequency is fast, and supply the electric energy to exchange member for time long, and catch the electric signal of exchange element. The time interval t4: the processor is on save energy working condition, the working frequency is low, it process the catch signal from the exchange element, and translate it into digital signal.

Primary wave and interlayer multiple wave combined imaging method

The invention provides a primary wave and interlayer multiple combined imaging method. The method comprises the following steps: performing forward wave field extrapolation on source wavelets based on a reverse time migration principle to obtain wave field information of upper, lower, left and right boundaries of a velocity field; carrying out equalization extension pseudo-multichannel matching on the forward upper boundary wave field and the seismic record, and solving a matching factor; acting the matching factor on the forward modeling left, right and lower boundary wave fields to obtain a matched boundary wave field; taking the seismic record and the matched boundary wave field as input data of reverse time migration reverse extrapolation, and performing reverse wave field extrapolation; performing uplink and downlink wave field separation on the seismic source and the detection extrapolation wave field based on F-K conversion; and imaging by applying a wave field separation imaging ...

First arrival automatic pickup method based on improved energy ratio method and time domain outlier detection

The invention provides a first arrival automatic picking method based on an improved energy ratio method and time domain outlier detection. The first arrival automatic picking method comprises the following steps: step 1, automatically picking shot gather first arrival by using the improved energy ratio method; 2, arranging the first arrival of the adjacent shot gather according to time-offset; 3, eliminating abnormal points in the arranged first arrival by applying a distance-based outlier detection method; 4, performing abnormal first arrival elimination on the first arrival processed in the step 3 by adopting a grid-based outlier detection algorithm; and step 5, outputting a final first arrival pickup result. The method has a good anti-noise capability, and the analysis of the actual seismic data processing test result shows that the abnormal value in the pickup first arrival is automatically eliminated after the processing is carried out by using the improved energy ratio method and ...

Method and device for quickly positioning shot records with abnormal observation coordinates

The invention provides a method and a device for quickly positioning an abnormal shot record of an observation coordinate. The method comprises the following steps of: 1, loading an observation system for a seismic acquisition shot record; 2, calculating a linear dynamic correction curve t (x, v); 3, according to the calculated linear dynamic correction curve, reflection amplitude absolute values Ai corresponding to xi and ti in the shot record are extracted; 4, calculating the statistical absolute amplitude of the moment corresponding to each linear dynamic correction curve in the shot records; and 5, outputting the statistical absolute amplitude E value of each shot record and the shot record position information, and sorting according to the E values from small to large. According to the method and the device for quickly positioning the abnormal shot records of the observation coordinates, the shot records with the abnormal observation coordinates can be efficiently and intuitively positioned ...

Air cable alarming system and method

The trolley cable alarm system and method comprises the radio alarm receiving module that can send out message to the preset end through the moving telephone network, two or more radio emitting module with the damage of its probe cable, it will send out alarm signal together with the address code of each radio emitting module, probe circuit being constant close oblique switch two or more series of the input end of the radio emitting module, and the oblique switch fixed on the cables.The alarm system can effectively send out alarm message and remind the broken location of the cable for timely repair and ensuring domestic and production load.

Full-node seismic acquisition data efficient quality control method based on sparse node data

The invention provides a full-node seismic acquisition data efficient quality control method based on sparse node data, and the method comprises the steps: 1, determining the position of a spatial sparse sampling point for a full-node layout position designed in an acquisition work area; 2, intelligent node instruments are arranged at the determined spatial sparse sampling point positions; 3, acquiring full-time recorded seismic data received by the intelligent node instruments at the spatial sparse sampling points; 4, active source seismic data are extracted from seismic data recorded by the node instrument in a full time mode, and a common detection point gather is formed; 5, carrying out the quality analysis of the seismic collection data by taking the detection point gather as the input; and step 6, outputting quality and monitoring attributes of the common shot point recorded seismic data. According to the method, on the basis of seismic data efficiently recovered from a very small ...

Amplitude preserving treatment analysis and evaluation method

The invention relates to the seismic data treatment field, in particular relating to a method for analyzing and evaluating the amplitude preservation performance of seismic treatment process. The technical scheme of the invention is as follows: inputting initial SEGY seismic data and SEGY seismic data subjected to amplitude preserving treatment; analyzing the seismic record difference; analyzing horizontal amplitude energy; analyzing horizontal frequency; analyzing the horizontal signal-to-noise ratio; and analyzing auto-correlation of seismic wavelets. The method provided by the invention has the following effect: amplitude and fidelity preservation is the key factor for the seismic data treatment quality, therefore, a manure method is needed to analyze and evaluate the amplitude preservation performance of the seismic data treatment process. In the method provided by the invention, the analysis of the amplitude preservation performance of the seismic records is mainly focused, and the ...

Near-surface comprehensive information processing explanation method

The invention relates to a method for acquiring near-surface comprehensive information processing explanation by using a seismic logging document, and the method comprises the following steps: loading seismic micro-logging original SEGD data and shotpoint position data; matching a seismic micro-logging position with a shotpoint position to determine the position of the seismic micro-logging in the whole work area; pointing a rational triggering depth of each micro-logging by browsing the record of the seismic micro-logging document; picking a first-motion wave of the seismic micro-logging data; computing the speed and thickness of a surface rock by using a first-motion time interval curve of the micro-logging data; computing surface layer energy attenuation by combining the computed surface rock speed thickness information with the seismic micro-logging data; and performing the three-dimensional interpolation by using the analyzed rational triggering depth and the surface rock speed thickness ...

Time-frequency threshold denoising method for passive seismic signals

The invention provides a time-frequency threshold denoising method for a passive seismic signal. The time-frequency threshold denoising method for the passive seismic signal comprises the following steps: step 1, inputting a single-channel passive seismic signal; step 2, converting the input signal to a time-frequency domain through short-time Fourier transform STFT; step 3, completing noise estimation; step 4, performing spectrum neighborhood division and corresponding threshold estimation based on the SURE theory; 5, applying a neighborhood attenuation factor to the corresponding region; and step 6, a result after noise attenuation is converted to a time domain through inverse short-time Fourier transform (ISTFT). The time-frequency threshold denoising method for the passive seismic signals does not depend on coherence of multi-channel signals and can be applied only through single-channel data, the whole denoising process is completely driven by data, good signal-noise separation capacity ...

Abnormal first arrival automatic elimination method based on digital image connectivity algorithm

The invention provides an abnormal first arrival automatic elimination method based on a digital image connection algorithm, and the method comprises the steps: 1, carrying out the binarization processing of a first arrival pickup result, and converting the first arrival pickup result into a binary image; step 2, performing expansion processing on the binarized graph to obtain an expanded binary image; step 3, performing channel communication judgment on the image in the step 2, and reserving communication blocks greater than a channel communication threshold value; step 4, carrying out multiplication operation on the binary image of which the abnormal connected blocks are removed and the binary image in the step 1, and determining a first arrival position after processing as 1 in an operation result; step 5, performing adjacent channel abnormal first arrival judgment on a result after communication processing; and step 6, mapping an identification result to an original single shot, and ...

Networking type multilayer warning light device

The utility model discloses a networking type multilayer warning light device, including central controller, central controller is connected with communication interface module and switch element, and the output of switch element is connected with information reminder module, the communication interface module can with communications such as the monitored control system of enterprise, security protection system, thing networking, can realize functions such as the inspection of remote equipment state, long -range maintenance, be favorable to realizing the intelligent standardized operation of on -the -spot warning or information, messenger warning device develops to intelligent direction, in addition, having a reverse diode D2 who switches on in that relay J's control coil both ends are parallelly connected, switching on in the twinkling of an eye at relay J control coil, the induced electromotive force in the twinkling of an eye that the control coil produced passes through diode D2 and ...

Constrained tomography speed modeling method based on reverse ray tracing

The invention provides a constrained tomography speed modeling method based on reverse ray tracing. The constrained tomography speed modeling method based on reverse ray tracing comprises the steps of: extracting angle domain common image gathers; automatically fitting the residual curvature of the extracted angle gathers, and calculating a travel time residual by means of a conversion relationship between the travel time residual and a depth residual; by means of a reverse ray tracing method, recording a ray arc length, and calculating a sensitivity matrix; calculating a slow degree disturbance and updating a speed model; and stacking the front depth migration and the extracted angle domain common image gathers, iterating the steps until all controlled layers are updated. The constrained tomography speed modeling method based on reverse ray tracing realizes high migration speed analysis efficiency and high precision in waveform inversion. On condition that a waveform inversion technique ...

Intelligent power supplier

The invention relates to an intelligent power supplier, which is connected with a phase line and a zero line of an alternating-current mains supply. A master switch and two parallel switches arranged on the rear of the master switch are arranged on an alternating current supply line; one of the two parallel switches controls a primary device, and the other switch controls the power supply of a secondary device; and an intelligent control circuit is respectively utilized to control the on-off of the three switches. The intelligent power supplier can capture the startup and shutdown actions of the primary device to automatically and orderly start up or shut down the primary device and the secondary device; moreover, the intelligent power supplier has the functions of automatic shutdown, time shutdown, false startup prevention, false shutdown prevention and frequent startup and shutdown prevention, and can prevent blind shutdown caused by the overvoltage and under-voltage of the power supply ...

Automatic first break picking method based on edge detection

The invention relates to an automatic first break picking method based on edge detection, in particular to an automatic first break picking technology based on edge detection, which comprises the steps of: first, inputting original seismic data and conducting graying processing on the seismic data, and then, carrying out seismic data edge detection by virtue of airspace differential operators and finishing the edge detection by corresponding templates and image convolution, finally, correcting the edge detection results with an edge tracking technology, completing the automatic picking of seismic data of the first break and outputting picking results; a manual selection method is used for selecting an edge point as a starting point; and the edge tracking technology mainly utilizes tracking 'bug' for tracking. When being used for picking up the first break from three-dimensional seismic data, the automatic first break picking technology based on edge detection can reduce time by 7 days to ...

Intelligent power supplier

The invention relates to an intelligent power supplier, which is connected with a phase line and a zero line of an alternating-current mains supply. A master switch and two parallel switches arranged on the rear of the master switch are arranged on an alternating current supply line; one of the two parallel switches controls a primary device, and the other switch controls the power supply of a secondary device; and an intelligent control circuit is respectively utilized to control the on-off of the three switches. The intelligent power supplier can capture the startup and shutdown actions of the primary device to automatically and orderly start up or shut down the primary device and the secondary device; moreover, the intelligent power supplier has the functions of automatic shutdown, time shutdown, false startup prevention, false shutdown prevention and frequent startup and shutdown prevention, and can prevent blind shutdown caused by the overvoltage and under-voltage of the power supply ...