The possibility of existence of viable petroleum systems in west Congolien Basin has been subject to controversies over the last decade, given the extreme Tectonical events that underwent this sedimentary basin. Some studies have reported interesting results regarding potential source rocks and the organic matter input. Here, we report the petrophysical investigation of geological formations outcropping around Sekelolo and Kwilu/Snel, of which lithological units are likely to bear fluids, thus playing the role of oil and gas reservoir. The porosity and the permeability obtained from Laboratory analyses, range within 10-15% and >250 millidarcy respectively. Petrophysical results suggest the existence of very good reservoirs, while further studies are necessary to elucidate the maturation and preservation of organic matter from secondary alteration during the evolution of the basin.
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