oa New Concepts in Seismic Reflection Imaging

It is widely accepted that a true-amplitude prestack migration in ultimately the most desirable reflection-imaging process. However, it makes sense to implement this process only if the macro model is sufficiently acceptable. Hence, other processes like migration-to-zerooffset, dip moveout, homeomorphic imaging and multi focusing become more and more necessary to achieve the ultimate goal. A unified theory has recently evolved for macro-model-based and non-macro-model-based reflection imaging methods. It includes Kirchhoff-type techniques, image waves and homeomorphic imaging. This paper will give a short introduction to these new fundamental reflection imaging concepts, with wich information can be obtained that goes beyond those obtained by prestack depth migration.