Integration of well test results, horizontal well information, bore hole imaging, see Figure 1, 3-D seismic, and coherency analyses has made possible the ability to locate and define vertical faults and fractures. Fracture orientation, Figure 2, based on image log data from several wells, can increase our understanding of how the direction of these fractures effects reservoir performance. Conductive faults and fractures that contribute to fluid flow, along with stratified high permeability regions, must be included in our mathematical models.

Capturing the correct physics of fluid movement improve these reservoir simulation models accuracy as predictive tools.

To illustrate this point a sector model of the Beta reservoir was constructed using several different LGR (Local Grid Refinement) regions each represented a vertical fault and fracture system. These vertical fault-fracture systems, as depicted in Figure 3, were combined with high permeability stratified layers to construct a reservoir simulation model. This model was used to study possible inclusion of vertical faults and fractures, and investigate their effect on reservoir performance.

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