Abstract

In spite of advancement in seismic data acquisition and processing, imaging in structurally complex area such as fold belts has improved marginally. In such geologically complex areas conventional approach to imaging did not yield satisfactory results. Though in such areas 3-D survey is more preferable but due to several constraints, acquiring 3-D data is not possible. Rough topography & difficult accessibility makes 3-D land seismic data acquisition prohibitively expensive. Conventional 2-D land seismic data has its own limitations especially in fold belt areas, difficult to image anticlinal portion properly. An alternative to conventional 2-D in such areas is swath-line recording geometry. Swath-line recording provides much higher fold (720 fold in the present case) than typical 2-D land surveys, thus provides data with a much higher signalto-noise ratio.