H017 Impact of Time and Depth Imaging Methods on Quantitative 4D Reservoir Management A.K. Kvalheim* (Hydro Oil & Energy Research Centre) I.A. Sandø (Hydro Oil & Energy Research Centre) S.M. Skogland (Hydro Oil & Energy Production) V. Vinje (CGGVeritas Norge) & M. Carpenter (CGGVeritas Norge) SUMMARY Until now there are not many examples of depth imaging based 4D projects in the industry. This study gives us an unique opportunity to compare what effects different time and depth migration methods have on the 4D difference and what significance the migration velocity accuracy has for time-lapse data and its impact on the


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