Analysis of Variations in Amplitudes and Traveltimes with Offset and Midpoint
, by Einar Kjartansson
Lateral variations in rock properties cause complex variations of
amplitudes and traveltimes with offset on common midpoints gathers.
A theory for the interpretation and inversion of these complex variations
is presented. The application of the theory to seismic data form a
producing gas field shows correlations of interpreted velocity and
amplitude anomalies with diffractions observed on common offset sections.