3D Prestack Kirkhoff Beam Migration For Depth Imaging: Theory And Data Exemplos

We present a beam implementation for 3D prestack Kirchho depth migration of seismic data. Unlike conven-<br>tional Kirchho migration in which the input seismic traces in time are migrated one at a time into the 3D image<br>volume for the Earth's subsurface, the beam migration processes a group of input traces at a time. The migration<br>of each group of traces, or supergather, consists of two major steps: slant stacking the traces into a