Abstract

Velocity analysis from stack power or semblance plots is common, but analysis of uncertainty in determination of velocity through these methods is never done. Starting with a Ricker wavelet spread out along hyperbolae of different velocities at different depths/times and offsets, we analyze the uncertainty in our velocity determinations. We carry out this analysis for isotropic as well as anisotropic media. In the isotropic case, we also study the effect of statics on stack power. We further study stack power vs. velocity for the case in which a primary is mixed with a multiple of lower velocity, and the case of two primaries close together.