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REVERSE TIME MIGRATION AND MULTIPLE MIGRATION BASED METHODS
REVERSE TIME MIGRATION AND MULTIPLE MIGRATION BASED METHODS
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机译:反向时间迁移和基于多重迁移的方法
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摘要
A device, medium and method for generating an optimal image of a subsurface of the earth. The method includes receiving (702) measured seismic data D related to the subsurface of the earth, wherein the measured seismic data D includes primary data Dp and multiple data Dm; calculating (704) estimated multiple seismic data dm based on (i) a reverse time multiple demigration operator Mm and (ii) an initial image r of the subsurface; generating (706) an objective function E that includes a first term defined by a cross-correlation of the measured multiple data Dm with the estimated multiple seismic data dm; and calculating (708) the optimal image of the subsurface by maximizing or minimizing the objective function E.
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机译:用于生成地球地下的最佳图像的设备,介质和方法。该方法包括:接收(702)与地球的地下有关的测量的地震数据D,其中,测量的地震数据D包括原始数据D p Sub>和多个数据D m Sub>;根据(i)逆时多次反偏移算子M m Sub>和(ii)地下的初始图像r计算(704)估计的多个地震数据d m Sub>。生成(706)目标函数E,该目标函数E包括通过测量的多个数据D m Sub>与估计的多个地震数据d m Sub>的互相关而定义的第一项;并且通过最大化或最小化目标函数E来计算(708)地下的最佳图像。
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