Angle-gather time migration

Sergey Fomel and Marie Prucha

sergey@sep.stanford.edu, marie@sep.stanford.edu

ABSTRACT

Angle-gather migration creates seismic images for different reflection angles at the reflector. We formulate an angle-gather time migration algorithm and study its properties. The algorithm serves as an educational introduction to the angle gather concept. It also looks attractive as a practical alternative to conventional common-offset time migration both for velocity analysis and for AVO/AVA analysis.