The study is a contribution to the characterization of electro-facies and lithologic facies of fluvial systems in Ivorian Continental Terminal by analyzing gamma ray recordings and lithologic percentage data. The lithostratigraphy of the well was reconstructed using Strater software by a combined analysis of GR recordings and litho-granulometric data. The analyzes reveal nine litho-granulometric facies in this well and are mainly composed of coarse sands. These are medium clayey slity sands, coarse clayey slity sands, medium sands, coarse sands, medium gravelly sands, coarse gravelly sands, very coarse gravelly sands, gravels with coarse sands and kaolins. About the electro-facies, the analysis of log GR revealed 21 diagraphic facies (electro-facies) including 4 baselines, 5 lines of positive turns and 8 negative turns and 4 egg shapes. They have been identified in the lithologic facies. The deposit environment of BNC1 well formations is characterized by log shapes such as: cylindrical, funnel, bell and Serrated. These forms reflect fluvial environments such as braided channels and meandering channels (floodplain).