Residual Prestack Migration and Interval-velocity EstimationCopyright by the author. |
Common terms and phrases
bottom-of-salt reflector changes in interval common-reflection-point gathering computed depth conversion depth km depth-migrated dipping reflector equation Fermat's principle Figure fixed depth point fixed events Horizon residual-slowness analyses interval slowness interval velocity interval-slowness model interval-velocity estimation interval-velocity model kinematics lateral velocity variation linear linear operator midpoint km migrated and stacked migrated constant-offset sections migrated image migration velocity North Sea data null space objective function offset operator G optimization problem perturbation prestack depth migration prestack time migration pseudo-depth km reflector point residual constant-offset migration residual depth migration residual migration residual moveout residual NMO residual NMO+DMO residual prestack migration residual slowness residual time migration residual velocity residual zero-offset migration residual-migration operators salt dome Sea data set seismic shows slowness model specular rays stacked image stacked section stacking trajectory stacking velocities stationary points subsurface tomography traveltime-tomography velocity analysis velocity information velocity model velocity-analysis wavenumber