公开(公告)号：US06263284B1

公开(公告)日：2001-07-17

申请号：US09298549

申请日：1999-04-22

申请人： Richard L. Crider ,  Leon Thomsen ,  Gerard Beaudoin

发明人： Richard L. Crider ,  Leon Thomsen ,  Gerard Beaudoin

IPC分类号： G01V128

CPC分类号： G01V1/286 ,  G01V1/364 ,  G01V2210/56

摘要： The instant invention is generally directed toward methods of using an AVO-type analysis on unstacked seismic data to identify subsurface exploration prospects. More particularly, a new method of identiflying and displaying converted mode seismic reflections is provided that has significant advantages over that in the prior art. Additionally, the instant invention can be used to attenuate or eliminate seismic reflections such as multiples that are not flattened by conventional velocity analysis. Further, a method is disclosed that provides for identification and display of only those seismic reflections deemed consistent with the usual or expected AVO behavior. Finally, another aspect of the instant invention involves the use of statistical goodness of fit measures, such as the Coefficient of Determination, to create a seismic display that is indicative of the degree to which each time slice in a gather conforms to a proposed AVO model.

摘要翻译： 本发明通常涉及使用对未堆放地震数据进行AVO型分析来识别地下勘探前景的方法。 更具体地，提供了一种识别和显示转换模式地震反射的新方法，其具有比现有技术中显着的优点。 此外，本发明可以用于衰减或消除诸如通过常规速度分析未平坦化的倍数的地震反射。 此外，公开了一种提供仅识别和显示与通常或预期的AVO行为一致的那些地震反射的方法。 最后，本发明的另一方面涉及使用诸如确定系数的统计拟合度量来创建表示每个时间片中的每个时间片符合所提出的AVO模型的程度的地震显示 。

公开(公告)号：US4972382A

公开(公告)日：1990-11-20

申请号：US359808

申请日：1989-05-31

申请人： Richard L. Crider

发明人： Richard L. Crider

IPC分类号： G01V1/36

CPC分类号： G01V1/364 ,  G01V2210/22 ,  G01V2210/3246

摘要： Time-invariant multichannel seismic data filters are applied to seismic data traces for rejecting coherent noise signals within a time-space window. In one embodiment, these filters are applied for rejecting all signals having the same trace-to-trace slopes as the coherent noise signal. Segments of the filtered traces that are within the time-space window are added to corresponding segments of unfiltered traces outside of the time window for producing reconstituted time-variantly filtered traces. In another embodiment, these filters are applied for rejecting the coherent noise signals and passing all other signals within the time-space window and passing all signals outside of the window for producing time-variantly filtered traces.

摘要翻译： 时不变的多通道地震数据滤波器被应用于地震数据轨迹，用于在时空窗口内拒绝相干噪声信号。 在一个实施例中，这些滤波器被应用于拒绝具有与相干噪声信号相同的轨迹到轨迹斜率的所有信号。 在时间窗口内的已滤波迹线的段被添加到时间窗口之外的未滤波迹线的相应段，用于产生重构的时变滤波迹线。 在另一个实施例中，这些滤波器被应用于拒绝相干噪声信号并且传递时间 - 空间窗口内的所有其它信号，并将所有信号传递到窗口外部，以产生时变滤波的迹线。