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1. 发明申请

WO2006088729A2 METHOD AND APARATUS FOR TRUE RELATIVE AMPLITUDE CORRECTION OF SEISMIC DATA FOR NORMAL MOVEOUT STRETCH EFFECTS 审中-公开
标题翻译：用于正常移动效应的地震数据的真相相对振幅校正的方法和方法
公开(公告)号：WO2006088729A2
公开(公告)日：2006-08-24
申请号：PCT/US2006/004688
申请日：2006-02-09
申请人： CHEVRON U.S.A. INC. , HERKENHOFF, E., Frederic , ALFORD, Richard, B. , MARTIN, Harry, L.
发明人： HERKENHOFF, E., Frederic , ALFORD, Richard, B. , MARTIN, Harry, L.
IPC分类号： G01V1/28
CPC分类号： G01V1/362 , G01V2210/52 , G01V2210/522
摘要： The present invention provides a method and apparatus for arriving at true relative amplitude destretched seismic traces from stretched seismic traces. The method compensates for offset varying reflection interference effects due to normal moveout. Stretch factors β and also input spectra are determined for NMOR stretched seismic traces. Estimates are then made of stretched wavelet spectra from the input spectra. A destretched wavelet spectra is then obtained. Shaping correction factors are determined by taking the ratio of the destretched wavelet spectra to the stretched wavelet spectra and are applied to the input spectra of the stretched traces to arrive at a destretched trace spectra. True relative amplitude scaling factors are computed by taking the ratio of a true relative amplitude property of the destretched wavelet spectra to a corresponding true relative amplitude property of the stretched wavelet spectra. Finally, the true relative amplitude scaling factors are applied to the destretched trace spectra to arrive at true relative amplitude destretched seismic traces.
摘要翻译：本发明提供一种用于从拉伸地震迹线到达真实的相对振幅破坏的地震迹线的方法和装置。该方法补偿由于正常移动引起的偏移变化反射干扰效应。确定NMOR拉伸地震迹线的拉伸因子ß和输入光谱。然后从输入光谱中估计拉伸的小波谱。然后获得破坏的小波谱。整形校正因子是通过将破坏后的小波谱与拉伸的小波光谱的比值进行确定的，并且应用于拉伸轨迹的输入光谱以得到一个残留的迹线光谱。通过将破坏后的小波谱的真实相对振幅特性的比值与拉伸的小波频谱的对应的真实的相对振幅特性的比值来计算真实的相对幅度缩放因子。最后，将真实的相对幅度缩放因子应用于残余轨迹光谱，以获得真实的相对幅度破坏的地震迹线。

2. 发明申请

WO2006088729A3 METHOD AND APARATUS FOR TRUE RELATIVE AMPLITUDE CORRECTION OF SEISMIC DATA FOR NORMAL MOVEOUT STRETCH EFFECTS 审中-公开
标题翻译：用于正常移动效应的地震数据的真相相对振幅校正的方法和方法
公开(公告)号：WO2006088729A3
公开(公告)日：2007-07-05
申请号：PCT/US2006004688
申请日：2006-02-09
申请人： CHEVRON USA INC , HERKENHOFF E FREDERIC , ALFORD RICHARD B , MARTIN HARRY L
发明人： HERKENHOFF E FREDERIC , ALFORD RICHARD B , MARTIN HARRY L
IPC分类号： G01V1/28
CPC分类号： G01V1/362 , G01V2210/52 , G01V2210/522
摘要： The present invention provides a method and apparatus for arriving at true relative amplitude destretched seismic traces from stretched seismic traces. The method compensates for offset varying reflection interference effects due to normal moveout. Stretch factors ß and also input spectra are determined for NMOR stretched seismic traces. Estimates are then made of stretched wavelet spectra from the input spectra. A destretched wavelet spectra is then obtained. Shaping correction factors are determined by taking the ratio of the destretched wavelet spectra to the stretched wavelet spectra and are applied to the input spectra of the stretched traces to arrive at a destretched trace spectra. True relative amplitude scaling factors are computed by taking the ratio of a true relative amplitude property of the destretched wavelet spectra to a corresponding true relative amplitude property of the stretched wavelet spectra. Finally, the true relative amplitude scaling factors are applied to the destretched trace spectra to arrive at true relative amplitude destretched seismic traces.
摘要翻译：本发明提供一种用于从拉伸地震迹线到达真实的相对振幅破坏的地震迹线的方法和装置。该方法补偿由于正常移动引起的偏移变化反射干扰效应。确定NMOR拉伸地震迹线的拉伸因子ß和输入光谱。然后从输入光谱中估计拉伸的小波谱。然后获得破坏的小波谱。整形校正因子是通过将破坏后的小波谱与拉伸的小波光谱的比值进行确定的，并且应用于拉伸轨迹的输入光谱以得到一个残留的迹线光谱。通过将破坏后的小波谱的真实相对振幅特性的比值与拉伸的小波频谱的对应的真实的相对振幅特性的比值来计算真实的相对幅度缩放因子。最后，将真实的相对幅度缩放因子应用于残余轨迹光谱，以获得真实的相对幅度破坏的地震迹线。

3. 发明申请

WO2004104636A1 METHOD FOR SIGNAL-TO-NOISE RATION ENHANCEMENT OF SEISMIC DATA USING AMPLITUDE NOISE ATTENUATION 审中-公开
标题翻译：使用振幅噪声衰减的地震数据信号噪声增强方法
公开(公告)号：WO2004104636A1
公开(公告)日：2004-12-02
申请号：PCT/US2004/015291
申请日：2004-05-14
申请人： CHEVRON U.S.A. INC. , HERKENHOFF, E., Frederic , BONES, Dennis, G. , LOUIE, Kendal, Bong, Hu
发明人： HERKENHOFF, E., Frederic , BONES, Dennis, G. , LOUIE, Kendal, Bong, Hu
IPC分类号： G01V1/00
CPC分类号： G01V1/364 , G01V2210/21 , G01V2210/32
摘要： A method for enhancing signal-to-noise (S/N) ratio of seismic data is presented. An ensemble of input traces is decomposed into a plurality of frequency bands of traces. Trace and signal power and then a maximum allowable signal-to-noise ratio are estimated for each frequency band. Weights are calculated which are functions of the inverse noise power or rms. The amplitudes in each of the traces are reformed using a fitting function which utilizes the estimated weights to create true relative amplitude signal enhanced traces. The weighting function has data adaptive parameters which can be changed to accommodate noise characteristics such coherency, incoherency, Gaussian and non-Gaussian distributions, etc. The method may be applied across many different coordinate systems. The method may be applied iteratively to seismic data to shape the noise distribution of the seismic data.
摘要翻译：提出了一种提高地震数据信噪比（S / N）比的方法。输入轨迹的整体被分解成多个迹线频带。对于每个频带估计跟踪和信号功率，然后估计最大允许信噪比。计算权重是反噪声功率或均方根的函数。使用拟合函数对每个迹线中的幅度进行改变，该拟合函数利用估计的权重来产生真实的相对幅度信号增强迹线。加权函数具有数据自适应参数，其可以被改变以适应噪声特性，如一致性，不相容性，高斯和非高斯分布等。该方法可以应用于许多不同的坐标系统。该方法可以迭代地应用于地震数据，以形成地震数据的噪声分布。

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