Anti-aliased Kirchhoff 3-D migration
Published:January 01, 2008
David E. Lumley, Jon F. Claerbout, Dimitri Bevc, 2008. "Anti-aliased Kirchhoff 3-D migration", Prestack Depth Migration and Velocity Model Building, Ian F. Jones, Robert I. Bloor, Biondo L. Biondi, John T. Etgen
Download citation file:
A significant degradation in the quality of Kirchhoff migration images can arise when the migration operator summation trajectory is too steep for a given input seismic trace spacing and frequency content This phenomenon is called “operator aliasing and is strictly distinct from and independent of data aliasing Unfortunately the conditions which lead to significant operator aliasing are common in most 3-D Kirchhoff migration work due to the sparse and irregular nature of 3-D acquisition geometries and the need to minimize the size of 3-D migration input data volumes.
Figures & Tables
Prestack Depth Migration and Velocity Model Building
During the past decade, a radical change has taken place in the way seismic processing delivers a subsurface image. Previously, we employed a purely linear processing sequence, moving from data preconditioning to velocity estimation and culminating in a single time-migrated 3D image. The work of the contractor’s data processor was separate and distinct from that of the client’s interpreter.