Thin Bed Tuning Analysis Using AVO Stratigraphy Methods

Vaughn Ball

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.