||Time migration velocity analysis by velocity continuation||
Up: Reproducible Documents
Published as Geophysics, 68, 1662-1672 (2003)
Time migration velocity analysis by velocity continuation
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.