Abstract
Time-Lapse (4D) seismic data has shown to be a successful tool in monitoring a field and its production using two or more 3D seismic cubes spaced by months or by years. At the end of the 4D processing, two seismic cubes, named Base and Monitor, are obtained using a similar processing sequence. Each cube represents the snapshot of the reservoir at a given time. It allows a better understanding of the field, thus supporting operations. Prior to processing the data, a complete study was done to analyse the likelihood of seeing a 4D difference despite two different acquisition layouts. Throughout a complete processing in both time and depth domains, 4D attributes are being analysed over the field giving confidence in the quality of the dataset. Finally, a full 4D analysis helps us to develop a better understanding of the field fluid transfer mechanism allowing improved optimization the field.
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