Publisher : Korean Society of Earth and Exploration Geophysicists
DOI : 10.7582/GGE.2012.15.1.023
Title & Authors
A Constrained Optimum Match-filtering Method for Cross-equalization of Time-lapse Seismic Datasets Choi, Yun-Gyeong; Ji, Jun;
The comparison between time-lapse seismic datasets is the most popular method in the reservoir monitoring. The method of extracting the changes only due to the change in the reservoir is the essential technique in the comparison of time-lapse seismic datasets. In the paper, the conventional cross-equalization approaches and an enhanced optimized approach have been tested and compared each other. As conventional approaches, the bandwidth equalization and phase rotation methods have been tested in frequency, time and mixed domains, respectively and their results were compared each other. In order to overcome the limit of the conventional approaches, which loses high frequency components, a new constrained optimum filtering method was proposed and experimented. The new constrained filtering method has shown the improvement in broadening the bandwidth of the components of reservoir changes by acquiring optimized match filter.