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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 11. Отображено 11.
11-05-2011 дата публикации

Method for processing seismic data

Номер: CN0102053261A
Автор: Tang Jianming, Ma Zhaojun, Xu Xiangrong, Gan Qigang, Xu Tianji, Wang Bin, Su Jinyi, Wen Xuekang
Принадлежит:

The invention provides a method for processing seismic data. The method comprises the following steps: performing wave field separation to the seismic data to obtain longitudinal wave data and converted wave data; performing anisotropic processing to the longitudinal wave data; and performing anisotropic processing to the converted wave data.

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Номер записи: 1
11-05-2011 дата публикации

Method for acquiring azimuth velocity of seismic converted wave and method for processing seismic data

Номер: CN0102053262A
Автор: Tang Jianming, Ma Zhaojun, Xu Xiangrong, Gan Qigang, Xu Tianji, Kang Li, Xu Meijuan, Ma Ruhui
Принадлежит:

The invention provides a method for acquiring the azimuth velocity of a seismic P-SV converted wave and a method for processing the data of the seismic converted wave according to the acquired azimuth velocity. The method for acquiring the azimuth velocity of the seismic P-SV converted wave comprises the following steps: in the asymptotic common conversion point (ACCP) gather of wide azimuth converted wave seismic data, the ACCP gather is divided into a plurality of azimuth sectors based on the difference between azimuth angles, and the seismic data in each azimuth sector comprises a plurality of channels in the ACCP gather; on the basis of the seismic data of the plurality of channels in each azimuth sector, the velocity of the azimuth sector is determined; ellipse fitting is performed on the velocity of each azimuth sector; and the azimuth velocity of each azimuth is determined based on the fitted ellipse, and the velocity is applied to the normal-moveout correction of each azimuth seismic ...

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Номер записи: 2
16-04-2014 дата публикации

Multi-channel matching tracking method based on seismic data

Номер: CN103728660A
Автор: GAN QIGANG, XU DUO, YANG KEMING, TANG JIANMING, XIE GANGPING, LI SHUGUANG, XU TIANJI, HU ZHIQUAN, HU BIN, KONG XUANLIN, YU QIN, XIAO WEIDE, WANG JINLONG, WEN XUEKANG
Принадлежит:

The invention discloses a multi-channel matching tracking method based on seismic data. The method includes the steps that based on other seismic channels adjacent to one single seismic channel fL(t) in one group of seismic channels {f1(t), f2(t), ... , fL(t)}, the single seismic channel fL(t) is decomposed many times according to the equation (2) so as to obtain a plurality of sub waves with the formula shown in the specifications, the sub wave with the formula shown in the specifications is obtained in the nth decomposing, is the basic sub wave shared by all the seismic channels in the group of seismic channels {f1(t), f2(t), ... , fL(t)}, and is in the mode of the Morlet sub wave, L is the number of the seismic channels in the group of seismic channels, N is the decomposing number, n is an integer from 1 to N, a{l, n} is the amplitude of the wavelet obtained in the nth decomposing, and R fL(t) is the final remaining seismic channel. The nth decomposing includes the steps that an initial ...

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Номер записи: 3
11-05-2011 дата публикации

Oil-gas reservoir identification method

Номер: CN0102053259A
Автор: TANG JIANMING, XU TIANJI, CAI XIYUAN, ZHANG HONG, LI XIANGUI, GAN QIGANG, YE TAIRAN, CHENG BINGJIE, JIANMING TANG, TIANJI XU, XIYUAN CAI, HONG ZHANG, XIANGUI LI, QIGANG GAN, TAIRAN YE, BINGJIE CHENG
Принадлежит:

The invention provides an oil-gas reservoir identification method. The method comprises the following steps: slow transverse wave seismic data in a plurality of places of a local area is obtained; the property of one or more slow transverse waves in the plurality of places is calculated according to the slow transverse wave seismic data; the average value of the property of the one or more slow transverse waves in the plurality of places is calculated; and the property of the one or more slow transverse waves in the plurality of places is respectively compared with the respective average value, and the area favorable for the distribution of the oil-gas reservoir is determined according to the comparison result. According to the oil-gas reservoir identification method provided by the invention, the gas and water properties are distinguished by utilizing the sensitivity characteristics of slow transverse waves to fluid viscosity, so as to improve the oil-gas prediction accuracy.

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Номер записи: 4
18-05-2011 дата публикации

Method for matching longitudinal and transverse waves

Номер: CN0102062873A
Автор: Tang Jianming, Xu Tianji, Ma Zhaojun, Gan Qigang, Yang Keming, Kong Xuanlin, Wang Yankun, Wu Qingjie
Принадлежит:

The invention provides a method for matching longitudinal and transverse waves, which comprises the step of matching longitudinal wave seismic data with transverse wave seismic data, wherein the matching may be the matching of reflection time, the matching of reflection energy or waveform matching; in the matching of the reflection time, the reflection time of a converted transverse wave profile is corrected by using a time correction coefficient alpha, so that the corrected reflection time of the converted transverse wave profile can be matched with that of a corresponding longitudinal wave profile; in the matching of the reflection energy, the reflection energy of a converted transverse wave is corrected by using an energy correction coefficient beta, so that the corrected reflection energy of the converted transverse wave can be matched with that of a corresponding longitudinal wave; and in the waveform matching, a waveform of the converted transverse wave is corrected by using a calculated ...

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Номер записи: 5
11-05-2011 дата публикации

Inverse Q filtering method for seismic wave signal

Номер: CN0102053273A
Автор: Gan Qigang, Xu Duo, Tang Jianming, Yang Keming, Zhang Yonggang, Xu Tianji, Li Xiangui, Chen Benchi
Принадлежит:

The invention provides an inverse Q filtering method for a seismic wave signal. The method comprises the following steps: extracting a quality factor Q value from the seismic wave signal collected from a seismic channel; performing time-frequency transformation on the collected seismic wave signal so as to acquire a seismic wave frequency spectrum shown in the specification, wherein tau is a travel-time and omega is an angular frequency; and performing inverse Q filtering on the seismic wave frequency spectrum by utilizing the following formula shown in the specification, so as to acquire the seismic wave frequency spectrum U (tau, omega) after inverse Q filtering, wherein gamma is equal to 1/(phiQ); omega h is the highest frequency within the seismic bandwidth; sigma 2 is a stable factor; i is an imaginary part unit; tau' in exponential terms is an integration variable, and the value range of the integration variable is within an integrating range from omicron to tau; and the quality factor ...

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Номер записи: 6
18-05-2011 дата публикации

Method for designing seismic exploration and observation system

Номер: CN0102062869A
Автор: Tang Jianming, Gan Qigang, Xu Xiangrong, Li Xiangui, Xu Tianji, Ma Zhaojun, Wen Xuekang, Cheng Bingjie
Принадлежит:

The invention provides a method for designing a seismic exploration and observation system, which comprises the following steps of: 1) arranging a shot row and a detector to form a first arrangement sheet, exciting shotpoints in the shot row one by one, and recording seismic waves generated when the shotpoints are excited by using the detector; 2) moving the detector in the first arrangement sheet and re-arranging the shot row to form a plurality of arrangement sheets, wherein the shotpoints in the shot row are excited one by one after each arrangement sheet is formed, the detector records the seismic waves generated when the shotpoints are excited, and the next arrangement sheet is formed; and 3) taking the arrangement sheets formed in the step 1) and the step (2) as a composite template, rolling the composite template horizontally and vertically in an exploration area, and executing the steps 1) and 2) every time the composite template is rolled until the exploration area is covered.

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Номер записи: 7
14-05-2014 дата публикации

Method for detecting frequency-variable gas in storage layer.

Номер: CN103792574A
Автор: GAN QIGANG, WU HENGZHI, LI SHUGUANG, XIE GUANGPING, XU DUO, XU TIANJI, TANG JIANMING, CAO BO, ZHAO DI, JIANG NENGCHUN, LYU QIBIAO, SU JINYI, HU ZHIQUAN, JIANG LEI, WEN XUEKANG
Принадлежит:

The invention provides a method capable of extracting a speed frequency dispersion effect from seismic data, achieving gas detection and gas-water identification in a rock storage layer by means of different speed frequency dispersion characteristics of a gas-containing storage layer and a water-containing storage layer. The method comprises: acquiring pre-stack seismic data of the storage layer; performing frequency division processing on the pre-stack seismic data in order to acquire the pre-stack seismic data body under each frequency; solving a following formula described in the description in order to acquire P wave speed variation rate frequency dispersion and S wave speed variation rate frequency dispersion of each sample point of the seismic channel of the storage layer; calculating a frequency-variable AVO attribute according to a relation among the P wave speed variation rate frequency dispersion, S wave speed variation rate frequency dispersion and the frequency-variable AVO ...

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Номер записи: 8
16-04-2014 дата публикации

Fine residual static correction method

Номер: CN103728665A
Автор: WU BO, TANG JIANMING, YANG KEMING, XU TIANJI, GAN QIGANG, WANG JIAN, MA ZHAOJUN, HU ZHIQUAN, ZHANG HONG, LI XIANGUI, CAO BO, ZHENG GONGYING, JIANG YINGYING, SI XINGYAN, DING YU'NAN
Принадлежит:

The invention discloses a fine residual static correction method used for processing original seismic data. The original seismic data comprise at least one CMP trace gather, and each CMP trace gather comprises a plurality of seismic traces. The method comprises the steps that (A), wavelet deformation trace pretreatment is conducted on the seismic traces in each CMP trace gather to eliminate the seismic traces with serious wavelet deformation; (B), self-adaptive separation superposition is conducted on the seismic traces in each CMP trace gather to generate new model traces G2(t); (C), cross-correlation calculation is conducted between the seismic traces in each CMP trace gather and the corresponding new CMP superposition model traces G2(t) to obtain the delay time of the seismic traces in the CMP trace gather; (4), after the steps (A), (B) and (C) are executed on the CMP trace gather, the statistical cross-correlation algorithm is adopted to separate the shotpoint static correction value ...

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Номер записи: 9
11-05-2011 дата публикации

Method for acquiring azimuth velocity of primary wave and method for processing earthquake data

Номер: CN0102053260A
Автор: Tang Jianming, Ma Zhaojun, Xu Xiangrong, Gan Qigang, Li Xiangui, Wang Bin, Kong Xuanlin, Huang Yue
Принадлежит:

The invention provides a method for acquiring azimuth velocity of a primary wave and a method for processing primary wave data according to the acquired azimuth velocity. The method comprises the following steps of: dividing a common midpoint (CMP) gather into a plurality of azimuth sectors according to different azimuth angles in the gather of the common midpoint of broad azimuth primary wave data, wherein the wave data in each azimuth sector comprises a plurality of channels in the CMP gather; determining the velocity of the azimuth sector according to the wave data in each azimuth sector; elliptically fitting the velocities of all azimuth sectors; and determining the azimuth velocity of each azimuth according to the fit ellipse, and using the velocity on dynamic correction and other processing of the wave data in each azimuth.

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Номер записи: 10
06-07-2011 дата публикации

Seismic wave decomposition method

Номер: CN0102116868A
Автор: GAN QIGANG, XU DUO, TANG JIANMING, XU TIANJI, YE TAIRAN, CHENG BINGJIE, JIANG NENGCHUN, CAI JUNLAN, QIGANG GAN, DUO XU, JIANMING TANG, TIANJI XU, TAIRAN YE, BINGJIE CHENG, NENGCHUN JIANG, JUNLAN CAI
Принадлежит:

The invention relates to a seismic wave decomposition method which comprises the following steps: selecting a Gabor small wave or a Morlet small wave as a wavelet form; carrying out multiwavelet decomposition on an obtained seismic signal; calculating three parameters of the small wave, namely time shift u, center frequency Omega, phase shift Phi through the complex attribute of the seismic signal in each decomposition; calculating a time scale parameter Sigma according to the three parameters; estimating the amplitude Alpha of the small wave; and determining a final parameter through iteration and decomposing wavelets with different dominant frequencies. The seismic wave decomposition method improves the traditional matched tracking method and improves the calculation efficiency; and meanwhile, Sigma is self-adaptive and adjustable.

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Номер записи: 11