Abstract: In order to improve the resolution of seismic data efficiently, it is important to study the absorption and the compensation of seismic wave in loose medium quantitatively. The distribution law of quality factor is calculated with the spectrum ratio method according to the raw well logging data collected in Tarim basin. The mathematical modeling of seismic energy absorption attenuation compensation in loose medium is studied by the phase shift technique in fx domain based on the propagation mechanics of seismic wave in elasticviscid medium. The result shows that the absorption attenuation of energy of high frequency can only be recovered by the data processing in some given condition of surface seismic geology, the conditions of completely compensating the absorption attenuation effect is given, and theoretic numerical data is provided to the reasonable upper limit of seismic data resolution in desert area.

Key words: seismic wave, absorption, dispersion, compensation, mathematical modeling