Abstract

Thrust belt seismic data from NE part of India has always been constrained by topography, near surface heterogeneity and energy penetration issues. Out of these, shallow sub surface complexity and topographical variation have direct impact on the alignment of reflection events and frequency content of the stacked sections. Seismic data from Naga thrust area posse strong challenges such as statics correction, noise elimination and velocity estimation to the processing geophysicists. An effort has been made in this paper to improve the S/N ratio to produce geologically conformable image of the subsurface. This paper delves on the processing strategy employed. The processing efforts were challenged by the scarce geological information available for the area. Meticulous analysis of the dataset and application of fit for purpose noise attenuation algorithm, better static & residual static solutions and CVS velocity picking helped in realizing the objective of seismic imaging in the area.