Abstract：Since it is rather difficult to use seismic facies in thin-bed reservoir sedimentary microfacies study,we put forward in this paper the concept of seismic lithologic geomorphy.Seismic lithologic geomorphy is a kind of seismic attributes which reflects both lithological and morphological features of sedimentary deposits.Unlike conventional seismic facies analysis,which particularly focuses on seismic reflections on sections,seismic lithologic geomorphy emphasizes the ability of plane seismic reflections to identify facies.In seismic lithologic geomorphy based sedimentary facies analysis,seismic attribute extraction and seismic calibration with well data are the key processes.And prestack attributes analysis of elasticity modulus,plane seismic facies mode calibration,and multi-information joint interpretation are effective means needed.The proposed method has been successfully applied to sedimentary microfacies study in the tectonic belt M,Raoyang Sag.
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