Time-lapse seismic in the Burgan oilfield - Kuwait

The evaluation is underway of a time-lapse 3D seismic (4D) in the Greater B urgan Field. This evaluation is in two parts, conventional processing in th e time domain up to time migration for predictability (repeatability in the broad sense) where the monitoring attribute is amplitude and evaluation fo r fluid movements in the acoustic impedance domain where the monitoring qua ntity, acoustic impedance, is used to quantify saturation changes. The conventional time-domain processing, which relates to amplitude and pha se only, indicated high predictability values throughout the processing seq uence, which show that the two surveys were acquired and processed in a con sistent manner and that the data are very repeatable in the broad sense. Th e acoustic domain processing is still ongoing.