PETE 2031 Chapter 5b and 6

the preference of a solid to be in contact with one fluid over another in a system of two or more immiscible fluids

(a)  

water wet

(a)  

oil-wet

(a)  

tend to have a preference to be in contact with either oil or water

(a)  

Knowing the wettability is very important in understanding the flow behavior when (a)  

happens between water and gas or between solid and a fluid (liquid or gas)

(a)  

happens between two liquids, and the lower the IFT is the closer the fluids are to become miscible

(a)  

the ability of two fluids to mix

(a)  

energy per unit area or the force per unit length in [N/m] or [dynes/cm]

(a)  

IFT is a function of

• fluid pairs

• temperature

• pressure