Time Lapse Analysis of a Pseudo-3D Surface Seismic Data at the CO2 SINK Project Site, Ketzin, Germany

Pseudo-3D surface seismic data (baseline and repeat) were acquired in conjunction with CO2 injection at the Ketzin site. Similar processing steps were used for the baseline and repeat data sets. After processing, stacked profiles from both data sets were compared. No large differences were found on Line 6, and good quality data of line6 starts about 300m away from the injection borehole. On a pseudo-3D profile, with midpoints falling close to the injection point, we observe differences in the two data sets. Our results are consistent with full 3D seismic time-lapse studies over the injection site.