keywords: Adoni Field, Heterogeneity, Niger Delta Basin, Reservoir Characterization, Reservoir properties.
Reservoir Characterization of four wells (Adoni-5, Adoni-6, Adoni-7 and Adoni-11) and biostratigraphic data of one well (Adoni-5) in the Adoni field, onshore Niger Delta was undertaken. The study was carried out to evaluate wireline log data for reservoir characterization of the Adoni field. The well log was qualitatively and quantitatively analyzed using Schlumberger Petrel 2017 software. The research has shown that the hydrocarbon bearing sand thickens in the South-Western direction and pinches out in the North-Eastern section of the field. The effective porosity values range between 24 to 30 % and the permeability values range between 2326.2 to 4123.2 mD and indicates very good to excellent reservoirs. The petrophysical parameters indicate a gassy reservoir which was validated by the bubble effect of neutron-density (log) crossplot. The biostratigraphic data suggest the reservoir is of possible Oligocene in age on the basis of microfossils identified and the log motif suggest channelized fluviodetaic transitional environment of deposition. on this further field development plan should give recourse to South western section, due to high degree of certainty with respect to high pay zones. The study has assisted in the direction of potential producible prospect and has also help in characterization of the reservoir which may aid in technical decision of developing the field.