Amplitude-preserving Monte Carlo 3D Prestack Migration

We present an amplitude-preserving imaging condition based on a least-squares approach that applies to Monte Carlo wavefield migration methods. Its implementation requires the knowledge of the overall shot illumination map that can be computed at a negligible additional cost during the migration process. The resulting condition is not sensitive to instability effects usually plaguing other formulations. Furthermore it compensates irregular shot illumination and focusing/defocusing effect caused by the velocity field. Finally, we show how the shot illumination volume is used as an independent tool for a better interpretation of seismic data.

@InProceedings{ABCC02,
  author       = {Arienti, M. and Bonomi, E. and Cardone, G. and Cazzola, L.},
  title        = {Amplitude-preserving Monte Carlo 3D Prestack Migration},
  booktitle    = {Proceedings of 64th EAGE Conference and Exibition, Florence - Italy},
  year         = {2002},
  keywords     = {Least-squares imaging condition, wavefield migration, Monte Carlo methods, reflectivity},
  url          = {https://publications.crs4.it/pubdocs/2002/ABCC02},
}