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Multiple attenuation in the image space

Paul Sava and Antoine Guitton

paul@sep.stanford.edu, antoine@sep.stanford.edu

ABSTRACT

Multiples can be suppressed in the angle-domain image space after migration. For a given velocity model, primaries and multiples have different angle-domain moveout and therefore can be separated using techniques similar to the ones employed in the data space prior to migration. We use Radon transforms in the image space to discriminate between primaries and multiples. This method has the advantage of working with 3-D data and complex geology. Therefore, it offers an alternative to the more expensive Delft approach.



 
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Stanford Exploration Project
7/8/2003