It has long been known that well intersections in the Ghawar field show thin intervals of extremely high productivity. These can be related to high permeability layers (stratiform features) or to sub-vertical faults and fractures. This paper discusses the characterization of these features and their inclusion in field scale simulation model. All high permeability features (both matrix and fracture related) are incorporated into the "fracture" component of a dual-porosity dual-permeability simulation. Fine grid modeling is used to validate the approach and to gain an understanding of the physical processes taking place within the reservoir. Practical considerations and difficulties encountered in setting up a large-scale (16 x 17 km) sector model using the DPDP properties are discussed. Results for several runs that include 40 years of production history show that the methodology has the potential to improve simulation modeling of this field.

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