Summary
In recent years, time-lapse seismic data has been acquired to understand dynamic reservoir characterization. The interpretation of time-lapse data does not only involve amplitude seismic data but also other seismic attributes such as impedance data. In Weyburn Field, the P-impedance inversion method is applied to time-lapse seismic data to monitor the CO2 flood in the thin Midale carbonate reservoir. The P-impedance difference between the baseline and repeated seismic surveys shows CO2 fingering along off-trend permeability zones and also CO2 vertical movement. This information can be used to improve the recovery process in the field.
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2003. Society of Exploration Geophysicists
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