When conventional methods of seismic stratigraphy are applied to the thin bed problem, the final result is a function which relates a range of thicknesses to a range of impedances. Amplitude vs. Offset (AVO) stratigraphy provides an analysis method that can substantially reduce the range of the solution. AVO stratigraphy is not a simple extension of conventional seismic stratigraphy. The essential difference is that petrophysical modeling is introduced in order to parameterize the otherwise unwieldly attributes of density, velocity, and Poisson's ratio.
AAPG Search and Discovery Article #91022©1989 AAPG Annual Convention, April 23-26, 1989, San Antonio, Texas.