Application of wavelet transform to instantaneous phase analysis.;

The fine description for the updip pinchout point of stratigraphic reservoir, mainly consisting of geologic statistic analysis, instantaneous phase processing and included angle seismic extrapolation, is summarized regarding statistic analysis and forward modeling as means and the practice of the stratigraphic trap exploration in Jiyang depression as the basis.

The paper introduces the principle of the seismic instantaneous attributes,and illustrates the features of karst in the seismic section,the instantaneous amplitude section,the instantaneous frequency section and the instantaneous phase section.

Based on the on the spot data coming from settlement on the soft soil foundation,a modified hyperbola consolidation model including instantaneous deformation under successive load is built,which fits either the once loading or the successive loading.