C007 SENSITIVITY ANALYSIS OF DEPTH SEISMIC IMAGES FOR STRUCTURAL INTERPRETATION IN FOOTHILLS Abstract 1 Getting a geologically realistic seismic image still remains a big challenge in foothills exploration as geology displays high structural complexity accounting for strong lateral velocity contrasts whereas seismic data show low signal to noise ratio. Ranges of seismic imaging tools including pre-stack time migration re-datuming and depth migration have been developed to deal with this. When the velocity variations are strong across the lines depth migration is definitely required and directly provides seismic images in depth. It requires however the construction of detailed depth models describing


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