This paper shows how we can combine statistical rock physics, lithofacies interpretation, and AVO analysis to discriminate between lithologies and thereby improve detectability of hydrocarbons from seismic amplitudes in Grane Field, North Sea. This Late Paleocene turbidite oil field has been problematic because of complex sand distribution and nonreservoir seismic anomalies. Figure 1 is a 3-D visualization of the reservoir as delineated by conventional seismic interpretation. The reservoir is bounded by the Top Heimdal and Base Heimdal horizons. The figure includes seismic grids of the Top Chalk horizon and the overlying Base Balder Formation, which define the Late Paleocene target...

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