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A 3-D geological model was constructed from a 3-D outcrop for reservoir flow simulation that can address the effects of small-scale (subseismic), interwell heterogeneities on production in analog deep-water oil and gas reservoirs.

The dimensions of the Hollywood Quarry, Arkansas 1, are 380 x 250 x 25 m (1247 x 821 x 83 ft) (2, 3). The quarry exposes in 3-D the upper Jackfork Group turbidites, which ate often used as an outcrop analog for deep-water reservoirs in the Gulf of Mexico and elsewhere. A variety of turbidite facies are present: lenticular, channelized sandstones, pebbly sandstones, and conglomerates within shales (CI); laterally continuous, interbedded thin sandstones and shales (SI, S2); and thicker, laterally continuous shales (Ml, M2). Sandstone and shale beds are folded and cut by strike-slip faults with a vertical component. These combinations of structural elements and facies have resulted in a stratigraphic interval that is highly compartmentalized, both horizontally and vertically. The quarry is used here as an analog to a variety of subsurface reservoir types.

Techniques used to characterize the quarry include behind-outcrop coring, outcrop gamma-ray (GR) logging, measured stratigraphic sections, sequential photography of the quarry walls, Digital Orthophoto-Quadrangle (DOQ) mapping, Ground Penetrating Radar (GPR), Global Positioning System (GPS), shallow, high-resolution seismic reflection, and GPS laser-gun positioning of geologic features in 3-D space.

The west wall has been quarried back within 0.5 m (1.6 ft) of the first inline of an earlier 3-D GPR survey and coring operation. The

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