Zero-Offset VSP Monitoring of CO₂ Storage: Impedance Inversion and Wedge Modelling at the Ketzin Pilot Site

Figure 10

Result of wedge modelling for the 10–20–80–100 Hz bandpass filtered data. Top: the corridor-stacked trace of the measured repeat is plotted on the left side. The coloured amplitudes are overlain by the wiggle trace. On the right, the result of wedge modelling is shown, from left to right for 1 m to 12 m reservoir thickness. The top and bottom of the reservoir are plotted as dashed black lines. Bottom: NRMS error between the modelled and measured traces.