Assessment of the Saturation Characteristics of Reservoir Using Core Analysis Data and Relative Permeability Curves

Abstract

In the reservoir, an oil – water contact (OWC) is commonly not fairly sharp. This is a transition zone, where the oil-water content varies gradually. A thickness of the transition zone may be from meter up to ten meters depending on geological characteristics of reservoir rock, and physical and chemical properties of oil and stratal water. The main aim of this work is an estimation of remaining and current water saturation in the zone of critical oil saturation, critical water saturation at the oil-water contact zone, and oil saturation at different distance from the OWC.

Keywords

• водонефтяной контакт
• водонасыщенность
• нефтенасыщенность
• капиллярное давление
• керн
• переходная зона