Processing technologies of seismic data from the coalfield in loess plateau area

The rapid changes of surface elevation, shallow structure and lithology, and the huge thickness of the low-velocity zone result in difficulty in static correction of seismic data. In the seismic data processing flow, the difficulties are low signal-to-noise ratio and poor amplitude and waveform consistency. The paper gives a united static correction technology for better solution of the problem of different wavelength static corrections, the multi-domain and multi-step iterative de-noising technology which can effectively remove noise and make signal not destroyed, and the consistency processing technology which makes amplitude and wavelet features consistent. The result shows these techniques can effectively improve the quality of seismic profiles.