Print version ISSN 0016-7169
A new computational technique of AVOA analysis (Amplitude Versus Offset and Azimuth) is developed which resolves an ambiguity in fracture-direction estimation. It analyzes a third term of Rüger's approximation for P-wave reflection coefficient to distinguish symmetry-axis and fracture-strike directions. The technique is tested on synthetic and field data.
Keywords : AVOA; HTI media; seismic anisotropy; fracture-reservoir characterization.