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    • 8. 发明授权
    • High fidelity rotation method and system
    • 高保真旋转方式和系统
    • US06182015B2
    • 2001-01-30
    • US09268261
    • 1999-03-15
    • Suat AltanJianchao LiXianhuai Zhu
    • Suat AltanJianchao LiXianhuai Zhu
    • G01V128
    • G01V1/284
    • A method and system for processing first and second seismic traces includes rotating the first seismic traces and the second seismic traces to forty-five degrees in the time domain. In one embodiment, the rotated first time domain traces and second time domain traces are transformed to the frequency domain to obtain an amplitude spectrum for each rotated first time domain trace and an amplitude spectrum for each rotated second time domain trace. Each amplitude spectrum is squared to obtain a power spectrum for each transformed and rotated time domain trace. The phase of each transformed rotated time domain trace to zero. The power spectrum for each transformed rotated time domain trace is then averaged. Each transformed rotated time domain trace is divided into time windows. A power spectrum for each window is obtained for the entire of each transformed rotated time domain trace. The power spectra of each window of the transformed rotated time domain trace is summed to obtain a summed first power spectrum. A third power spectrum representing a source wavelet is defined. The third power spectrum is divided by the power spectrum to obtain a set of frequency domain scalars. The amplitude power spectrum is multiplied by the set of frequency domain scalars. The result of this multiplication is inverse transformed. The amplitudes of the inverse transformed result is compared to derive an first amplitude scalar.
    • 用于处理第一和第二地震迹线的方法和系统包括在时域中将第一地震迹线和第二地震迹线旋转到四十五度。 在一个实施例中,旋转的第一时域迹线和第二时域迹线被变换到频域以获得每个旋转的第一时域跟踪的幅度谱和每个旋转的第二时域跟踪的幅度谱。 每个幅度谱平方以获得每个变换和旋转的时域轨迹的功率谱。 每个变换的旋转时域跟踪的相位为零。 然后对每个变换的旋转时域轨迹的功率谱进行平均。 每个变换的旋转时域跟踪被分为时间窗口。 对于每个变换的旋转时域轨迹的全部,获得每个窗口的功率谱。 将转换的旋转时域轨迹的每个窗口的功率谱相加以获得求和的第一功率谱。 定义表示源小波的第三功率谱。 将第三功率谱除以功率谱,得到一组频域标量。 幅度功率谱乘以频域标量集合。 该乘法的结果被逆变换。 将逆变换结果的振幅进行比较,得到第一幅度标量。
    • 9. 发明授权
    • Vertical cable time processing
    • 垂直电缆时间处理
    • US06442490B1
    • 2002-08-27
    • US09607272
    • 2000-06-30
    • Jianchao LiLong Don Pham
    • Jianchao LiLong Don Pham
    • G06F1900
    • G01V1/42G01V1/28G01V1/362G01V2210/20G01V2210/52G01V2210/53
    • A method for processing three-dimensional seismic data is provided. The seismic data is at least partially the result of receiving a seismic wave with a seismic receiver. At least a portion of the seismic wave is generated by a seismic source. The source and receiver are both horizontally offset and vertically offset. The method comprises binning at least a portion of the seismic data in common reflection point bins. The method comprises sorting the seismic data within the bin to create common reflection point gathers. The method further comprises analyzing velocity, and applying surface consistent statics corrections to at least a portion of the seismic data within said common reflection point gathers. The method also comprises applying a non-hyperbolic normal moveout equation to at least a portion of said seismic data, and stacking at least a portion of said seismic data within said common reflection point gathers.
    • 提供了一种处理三维地震数据的方法。 地震数据至少部分是用地震接收机接收地震波的结果。 地震波的至少一部分由地震源产生。 源和接收器都是水平偏移和垂直偏移。 该方法包括在共同的反射点箱中对地震数据的至少一部分进行合并。 该方法包括对箱内的地震数据进行排序,以创建共同的反射点集合。 该方法还包括分析速度,以及将表面一致的静态校正应用于所述共同反射点集合内的地震数据的至少一部分。 该方法还包括将非双曲正态移动方程应用于所述地震数据的至少一部分,以及将所述地震数据的至少一部分堆叠在所述公共反射点集合内。