Time migration velocity analysis by velocity continuation |

**Sergey Fomel**

Time migration velocity analysis can be performed by velocity
continuation, an incremental process that transforms
migrated seismic sections according to changes in the migration velocity.
Velocity continuation enhances residual normal moveout correction by
properly taking into account both vertical and lateral movements of
events on seismic images. Finite-difference and spectral algorithms
provide efficient practical implementations for velocity continuation.
Synthetic and field data examples demonstrate the performance of the method
and confirm theoretical expectations.

- Introduction
- Numerical velocity continuation in the post-stack domain

- Numerical velocity continuation in the prestack domain

- Examples

- Conclusions
- Acknowledgments
- Bibliography
- About this document ...

2013-03-03