Abstract

In most hydrocarbon bearing covered basins structures can be delineated easily in the deeper horizons, no such structural features are apparent in the shallower horizons of the basin in conventional seismic data. To overcome this problem drainage based geomorphic analysis had been used as an tool to define faults in the surface that had been correlated with sub surface faults from seismic data to decipher structures in the shallow sediments where seismic signatures are absent. This procedure had been tested successfully in four blocks of Himalayan Foreland in West and East ganga Basin, Purnea Basin and Bengal Basin and this tool can be used as an effective and low cost complementary tool to conventional seismic exploration as well as it can serve as a guideline for seismic reinterpretation of a basin.