Sedimentology and Depositional Environment of Reservoir Sands of Kanga Oil Field Onshore Niger Delta

In this study, reservoir sands from seven wells Kanga Oil field in the Onshore Niger Delta were analyzed sedimentologically to determine the level of spatial distribution of significant heterogeneity in the subsurface and infer the depositional environments. From the sedimentological analyses, three reservoir intervals J100, K100 and L100 of interest were identified based on the gross thickness of the reservoir sand, cleanliness of the reservoir sand and presence of hydrocarbon, and correlated across the field using suites of wire line logs. The environment of deposition was interpreted using gamma-ray log motif and lithologic description from Sidewall samples. The environments of deposition have been interpreted as Channel sands, Upper Shoreface, Lower Shoreface and Marine Shale, a reflection that the sediments was deposited in medium to low energy environment which favors the deposition of fine to medium grains sediments