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Conclusions

Multiples can be suppressed in the angle-domain, after migration. For a given velocity model, primaries and multiples have different moveout in the image space, and therefore they can be separated using similar techniques as the ones employed in the data space, prior to migration. We use Radon transforms, although these methods are neither unique, nor ideal.

Because we are using prestack depth migration, this method takes into account the effects of complex wavefield propagation in the same way that the Delft approach does. However, our proposed scheme has the potential to be affordable with 3-D data. Therefore, for complex geology, this method stands between multiple attenuation in the data space with Radon transforms and the Delft approach where multiples are first predicted and then subtracted.


next up previous print clean
Next: Acknowledgment Up: Sava and Guitton: Multiple Previous: Discussion
Stanford Exploration Project
7/8/2003