STUDY ON THE EXTRACTION OF SPATIAL VARIED SEISMIC WAVELETS
Sun Cheng yu
With consideration of the effects of phase characteristics, direct component and digital truncation, a method for extracting wavelet near a well by using seismic and log data is proposed. For the non\|well zone, the information of spectral amplitude can be gotten from seismic traces, and the information of phase spectrum can be obtained with the stability of the unwrapped phase spectra. At last, a spatial varied and stable wavelet profile is obtained. This profile can be used to improve the result of seismic inversion. The whole procedures are discussed in detail and a practical example is given.
【CateGory Index】： P631.42