University Bulletin – ISSUE No.19- Vol. (2) – April- 2017. 151 Variety of Cementation Factor between Dolomite and Quartzite Reservoir Dr. Bahia M. Ben Ghawar 1 , Dr. Khulud M. Rahuma 2 Dept. of Petroleum Engineering Tripoli University Abstract: Cementation factor is one of the most important petrophysical reservoir rock properties. In quantitative interpretation of well log data; it is widely used to estimate porosity and water saturation. Many researchers have studied the effect of the cementation factor in porous media, which is mostly sandstone rocks, and occasionally carbonates rocks, that represent nearly half of the world’s petroleum reserves. However, The purpose of this paper is illustration the variety of petrophysics Archie’s law (cemen tation