Abstract

This paper describes a case history of 3D seismic survey carried out in Contai area of Bengal basin, India during the year 2007 by an ONGC departmental crew, GP-29. The objective of the survey was to image paleo-channels in the depth range from 500m. to 2000m and deep seated strati-structural features occurring in the depth range of 2000m. to 3500m. The survey was done deploying state-of-the-art recording equipment 408UL with a geometry consisting of 1176 active channels, square bin of the dimension 25m. x 25m. and foldage equal to 42. The survey was accompanied with stringent data quality that resulted in good quality of data to the satisfaction of the client.