Wettability - Interpreting the Myth

Wettability plays a significant role in the initial distribution of fluids, movement of fluids and as well as the displacement of one fluid by another, within the reservoir. Reservoirs wettability can range from extremely water-wet to extremely oil-wet. Wettability might be different in different parts of the reservoir at the time of discovery and can even change with the passage of time. So to properly understand the displacement behavior within the reservoir proper understanding of the type of wettability existing within a reservoir is very important, for optimized reservoir surveillance.