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The Effect of Fracture Clustering on Confined Fractured Zones: Numerical Modeling and Analyses
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Petroleum Geostatistics 2019, Sep 2019, Volume 2019, p.1 - 5
Abstract
Summary
Seismic reflection amplitude variation with offset and azimuth (AVOaz) provides a traditional technique to detect fracture in the subsurface and deduce their properties. AVOaz relies on the Effective Medium Theory (EMT) which treats the fractured formation as anisotropic medium. The underlying assumption of EMT is that the fractures are uniformly disturbed and sufficiently close such that only specular reflections from the boundaries of the fractures are observed. In contrast, for randomly spaced fractures clustering takes place and individual scattering occurs, and the assumptions of effective medium theory are violated.
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