In conjunction with amplitude-friendly simultaneous processing of time-lapse seismic data, we introduce a QC scheme that steers the processing towards optimal time-lapse repeatability. We compute NRMS errors between stacked traces for different vintages of a survey after each main step of simultaneous processing. A processing step (which may include intermediate steps) is considered acceptable only when its overall NRMS error value is at most equal to its value from the previous processing step. We demonstrate this QC scheme with a well-designed time-lapse dataset.
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