On the Application of Common-Depth-Point Shooting in the Surma Basin, Bangladesh: A Case Study of the Rashidpur Structure

An analysis of the available seismic data from the Rashidpur anticlinal structure in the Surma basin, Bangladesh, shows that there are only a few interfaces that may generate significant reflections (medium category reflectors) down to the depth of four km, while the rest correspond to the category of weak reflectors. The relative amplitudes of different types of multiple events reveal that only 1^st order surface multiples and peg leg multiples may possess amplitudes that can be detected on a seismogram. It has been concluded that the application of common-depth-point (CDP) shooting in the Surma basin should be directed towards not only enhancing signal-to-noise ratio (SNR), but also obtaining precise seismic velocity information.