Based on the analysis of amplitude,frequency and noise characteristics of seismic data for sandstone-type uranium deposit in Songliao Basin,the research of seismic data processing method was carried out.With the method of integrated stepwise noise attenuation in multiple domain before stacked,the surface wave,linear noise,high energy interference was attenuated,the effective signal was remained,the signal-to-noised ratio was enhanced.In amplitude compensation,the combination of surface consistent amplitude compensation and geometric diffusion amplitude compensation could resolved the difference because of far and near offset,and deep and lower layer.By the joint of surface consistent deconvolution and predictive deconvolution,the variation of wavelet changed with space and time was eliminated,the sidelobe of wavelet was compressed,the resolution of seismic data was improved with the broadened frequency band.By comparing with the processed result before,the seismic data quality was improved by the processing method presented in this paper.
关键词
松辽盆地/地震资料处理/去噪/振幅补偿/反褶积
Key words
Songliao Basin/seismic data processing/noise attenuation/amplitude compensation/deconvolution
维普
万方数据