Prestack Data Enhancement Using Local Traveltime Approximation

The quality of recorded seismic data depends on many factors such as complexity of the subsurface, strong noise level, the topography of the earth’s surface, near surface inhomogeneities etc. We propose to use a local common offset (CO) approximation for traveltime stacking surface description. It allows to approximate traveltimes of reflection events in the vicinity of arbitrary ray and thus arbitrary offset. We present the general workflow and the implementation of a signal enhancement scheme.