Using Wavelet Shaping to Improve Synthetic Seismogram Quality

Synthetic seismogram is the bridge that connects seismologic data with well logging data,and is also the basis of the interpretation of structure and reservoir's seismic lithology.The accuracy of synthetic seismogram directly affects the accurate calibration of seismic geologic horizon and the accuracy of reservoir's lithology interpretation.Through this paper illustrates the principle of synthesizing seismogram.The reflection cofficients are obtained with the well logging data.By the principle of seismic waves,the wavelet is extracted from the seismic data of three dimension,and the raw synthetic seismogram is finished.Through building convolution model,this paper shapes wavelet extracted from seismic data,this wavelet varies with the time.At last,the seismic lithology of it is as the same of seismic data.Thus it lays a strong foundation for reservoir fine description.