Model Based Calibration of Time Lapse Seismic

G042 MODEL BASED CALIBRATION OF TIME LAPSE SEISMIC Abstract 1 We present a method for pre-stack calibration of repeated seismic surveying (time-lapse seismic data). The method is tested on real data producing pre-stack differences less than 5% in the overburden with frequency content above 90 Hz. Introduction The continuous request for increased efficiency in oil recovery demands a more accurate description of the reservoir and the fluid motion within the reservoir. Repeated or time lapse seismic is one of the most useful tools providing such information. A number of successful monitoring studies have been presented especially from steam-flood injector of