The common-reflection-surface (CRS) method has increasingly been used for the high-resolution imaging of complex subsurface structures because when subsurface reflector elements have dip and curvature, CRS increases signal-to-noise ratio and provides more subsurface information than conventional NMO/DMO time domain imaging.

Moreover, these advantages may also improve AVO analysis. The case study in this article shows that the more realistic subsurface assumptions and the increased fold of the CRS imaging extend AVO analysis into noise zones, reduce extreme fluctuation of AVO parameters, and enhance AVO anomalies.

The NMO/DMO stacking technique has dominated time-domain seismic imaging for many decades. The NMO assumption...

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