US Patent 7719923 Low frequency model estimation

Implementations of various techniques for a seismic inversion method. In one implementation, the method may include estimating a wavelet of a recorded seismic trace at a well location, transforming the recorded seismic trace to a relative seismic impedance trace, estimating a low frequency model trace using the relative seismic impedance trace and adding the low frequency model trace to the relative seismic impedance trace to generate an absolute trace.