Reservoir assessment and quality discrimination of Kareem Formation using integrated petrophysical data, Southern Gulf of Suez, Egypt

The dolomite content is the main key factor for reducing the reservoir quality of the studied Kareem sequence. From the core data, a total net pay thickness of 180 feet (mostly composed of sandstone with some siltstone intercalations) was assigned of fair quality (∅He = 14.7%, kH = 89.1 md, So = 28.8%, reservoir quality index 'RQI' = 0.60 μm, flow zone indicator 'FZI' = 3.81 μm, reservoir potential index 'RPI' = 2) with few streaks of good to very good potential. However, the siltstone samples have less petrophysical potential than the sandstones.