The mixed-phase seismic wavelet estimation approach based on high-order statistics developed in resent years often assumed that the reflectivity sequence of strata is non-Gaussian and statistically independent random process rather than Gaussian white noise distribution, which is more consistent with practical situation.

The estimation for MA(q) model parameters——An inverse arithmetic on mixed-phase wavelets;

Estimation of mixed-phase wavelet base on higher-order statistics.;

Using a production area in an oilfield along the northwest margin of Junggar Basin as a case,several problems to influence post-stack seismic inversion,such as mixed-phase wavelet extraction,initial velocity model building and multi-well constraints,are analyzed under different observation times between well log and seismic data.

A new method for seismic wavelet extraction and interval velocity inversion;

Geometric nonlinear effect of spherical seismic wavelet.;