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1. 发明公开

EP0869375A2 Spatial de-aliasing of the 3-D Kirchhoff DMO operator 失效
标题翻译：在3-D Kirchhoff DMO操作员中的Beseitigung von Aliasing
公开(公告)号：EP0869375A2
公开(公告)日：1998-10-07
申请号：EP98302529.7
申请日：1998-04-01
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： Beasley, Craig J. , Mobley, Everett C.
IPC分类号： G01V1/36
CPC分类号： G01V1/362 , G01V2210/522
摘要： A method is disclosed for processing seismic survey data to generate an unaliased 3-D DMO operator using two dimensional sampling theory to the spatial traverse of the operator as well as to the temporal axis. First a continuous DMO operator is generated along the line segment (10) connecting a source (5) and a receiver (R) directed at an arbitrary azimuth relative to a biaxial output grid. The operator is discretized at spaced-apart sample points (such as 16,18,20,30) along the DMO aperture segment (10), the spacing (D) being equal to or less than the output grid dimensions (dx,dy). An exponentially tapered sinc filter function is applied to the samples which are then interpolated onto the output grid.
摘要翻译：公开了一种用于处理地震勘测数据以产生使用二维采样理论对操作者的空间横移以及到时间轴的未混叠的三维DMO算子的方法。首先，沿着连接相对于双轴输出栅格的任意方位角的源（5）和接收器（R）的线段（10）生成连续的DMO操作器。操作者沿着DMO孔径段（10）在间隔开的采样点（例如16,18,20,30）处离散，间隔（D）等于或小于输出栅格尺寸（dx，dy）。将一个指数渐变的sinc滤波函数应用于样本，然后插值到输出栅格上。

2. 发明公开

EP0869375A3 Spatial de-aliasing of the 3-D Kirchhoff DMO operator 失效
标题翻译：在3-D基尔霍夫DMO操作者混叠消除
公开(公告)号：EP0869375A3
公开(公告)日：2000-02-23
申请号：EP98302529.7
申请日：1998-04-01
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： Beasley, Craig J. , Mobley, Everett C.
IPC分类号： G01V1/36 , G01V1/28
CPC分类号： G01V1/362 , G01V2210/522
摘要： A method is disclosed for processing seismic survey data to generate an unaliased 3-D DMO operator using two dimensional sampling theory to the spatial traverse of the operator as well as to the temporal axis. First a continuous DMO operator is generated along the line segment (10) connecting a source (S) and a receiver (R) directed at an arbitrary azimuth relative to a biaxial output grid. The operator is discretized at spaced-apart sample points (such as 16,18,20,30) along the DMO aperture segment (10), the spacing (D) being equal to or less than the output grid dimensions (dx,dy). An exponentially tapered sinc filter function is applied to the samples which are then interpolated onto the output grid.

3. 发明授权

EP0869375B1 Spatial de-aliasing of the 3-D Kirchhoff DMO operator 失效
标题翻译：在3-D基尔霍夫DMO操作者混叠消除
公开(公告)号：EP0869375B1
公开(公告)日：2004-11-17
申请号：EP98302529.7
申请日：1998-04-01
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： Beasley, Craig J. , Mobley, Everett C.
IPC分类号： G01V1/36 , G01V1/28
CPC分类号： G01V1/362 , G01V2210/522

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