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Velocity estimation for seismic data exhibiting focusing-effect AVO (part 2)

Ioan Vlad

nick@sep.stanford.edu

ABSTRACT
Vlad and Biondi (2002) have shown that focusing-effect AVO (FEAVO) exists and is visible in the angle domain. They have conjectured that wave-equation migration velocity analysis (WEMVA) might solve the FEAVO problem. I continue that line of work by showing evidence that WEMVA is the right tool, and by redoing the preprocessing and velocity analysis of the dataset on which FEAVO was defined.

Introduction
Previous work by others
- Attempts to invert FEAVO-affected data for a velocity model
- Wave Equation Migration Velocity Analysis
The new approach
Evidence that the proposed approach is feasible
Conclusions
Future Work
Acknowledgments
REFERENCES
APPENDIX A - Derivation of formulas for FEAVO anomaly shapes
APPENDIX B - THE FORWARD LINEARIZED DOWNWARD CONTINUATION OPERATOR
: APPENDIX C - preprocessing details
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Stanford Exploration Project
11/11/2002