Fast algorithm of well-seismic matching based on anti-alias base functions
He Liu, Hong Shi Liu, Liu Hongwei, Qin Yue-shuang · Progress in geophysics · 2009
The seismic event has non-layered structure in fluvial faces reservoir and carbonate rock,we call this structure as complicated network structure.It's difficult to depict this type structure precisely using layered strata model.The objective function of the broad-band restrained inversion generally includes a layered initial model, discrete smoothing restrain,sparse restrain and linear-analog function,the high frequency information of this method dominantly derives from the layered initial model which is generated by interpolate between wells,the information of the seismic data between the wells has little effect on the merging.Besides,its computation is time-consuming,and it's difficult to adjust layered information and non-layered information of sparse-restrained seismic data,so it isn't fit for well-logging and seismic information mergence of strata with complicate feature.This paper use seismic data to generate anti-alias base functions to depict the complicated network strata,it avoid relying on the layered model and can reflect the non-layered information of the seismic data.This paper test the method using seismic data of the Lower Cretaceous Fuyu oil layer,approves that the method is fast and efficient.