Phase Residues for Stratigraphic Discontinuities Detection

Spectral decomposition has proven to be very successful in direct hydrocarbon detection, thin bed thickness determination, and lithology identification. To date, most publications have focused on the application of the spectral magnitude, and little has been introduced about interpreting the spectral phase although seismic acquisition and processing does a much better job in preserving phase than it does in preserving amplitude. This paper shows how to improve seismic spectral decomposition interpretation by detecting the phase discontinuities in the joint time-frequency spectral phase.