Estimating anisotropy parameters and traveltimes in theτ-ρdomain

摘要

The presence of anisotropy influences many aspects of seismic wave propagation and has therefore implications for conventional processing schemes. To estimate the anisotropy, we need both forward modelling and inver- sion tools. Exact forward modelling in anisotropic media is generally done by raytracing. However, we present a new and fast method, using theτ-ρtransform, to calcu- late exact P and SV reflection moveout curves in strat- ified, laterally homogeneous, anisotropic media which requires no ray tracing. Results are exact even if the SV-waves display cusps.