Improving the seismic data resolution based on system discrimination

Improving seismic data vertical resolution for surfaceis is difficult and the hotspot of research in geophysical field.In the paper,a new method for improving surface seismic data resolution by using logging data is provided.On the assumption that the absorption of seismic wave for stratum appears linear system,the theoretical model combining surface seismic information and acoustic logging information is firstly built,then the system characteristics of seismic wave absorption for stratum are estimated by system discrimination technique so as to have the compensative high frequency recovery of surface seismic data.The processing results of different resolutions from forward modeling data and actual surface seismic data are shown that in the condition of the same main characteristics of original seismic data,the technique can improve greatly the seismic data vertical resolution,especially,10~20Hz of the dominant frequency band can be improved,and 10Hz of frequency band can be developed.