Abstract

Summary Natural fractures in reservoirs play an important role in determining fluid flow during production, and knowledge of the orientation and density of fractures is required to optimize production. Variations in reflection amplitude with azimuth and incidence angle are sensitive to the presence of fractures. The variation in reflection coefficient of seismic P-waves as a function of azimuth and offset for an arbitrary number of differently oriented vertical fractures is analyzed to identify which parameter combinations are well-resolved for various experimental geometries. The results show how to optimize seismic acquisition to help choose the location of infill wells, the orientation of deviated wells, and the relative orientation of neighboring infill wells to ensure adequate drainage.

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