Application of the Tau-P transform to processing of Australasian data

Abstract

The Tau-P transform has been a subject of research in exploration seismology for at least a decade. Many techniques for processing seismic data in the Tau-P domain have been developed, including velocity analysis using reflections and refractions, time-variant linear noise filtering, hyperbolic velocity filtering, coherency filtering and trace interpolation. However, in general these techniques have not been extensively used in practice, principally because of accuracy limitations of the discrete inverse transform, and also because of the high computing costs. Improvements in the fidelity of the transform have now been achieved and, in the last two years, Tau-P domain processing has come to be widely used on Australasian data. Also, much Australasian data has been found to respond well to Tau-P domain techniques.