Petrophysicical and Reservoir Evaluation of Obot-1 and Obot-2 Well, Agbada Formation, Niger Delta, Nigeria

Abstract

This study is on the evaluation of petrophysical parameters of the reservoir sand using well logs.  These parameters have been used to determine the reservoirs potential and quality prevalent in the study area. Three hydrocarbon reservoirs (A, B, and C) were identified across the OBOT-1 and OBOT-2  of  depth 8498ft (2591m) and 7819ft (2,384m) respectively. The petrophysical parameters of the reservoir A ranges from 32-22%, 5024-116.2md, 20-14% and 86-80% for porosity (), permeability, water saturation (S_w) and hydrocarbon saturation (S_h). Its transmissivity ranges from 50,952mdft-648,148mdft. The petrophysical parameters of the reservoir B ranges 30-18%, 1997.8 – 166.5md, 30-14% and 86-70% for porosity (), permeability, water saturation (S_w) and hydrocarbon saturation (S_h) respectively. Based on Schlumberger standard, the values indicate that reservoir A has both excellent porosity and permeability with highest transmissivity.