دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the angle formed when two immiscible fluids meet a solid surface. For example, in a reservoir where water contacts a grain of sand or rock, it conforms to the shape of the solid and its angle of contact is at or near zero. Because of surface tension, any oil in the area does not conform to the shape of the water and grain;instead, the oil surrounds the wet grain and produces angles at the point of contact between the oil and the water.

the angle of intersection of two fluids on a given surface. Describes wetting and non-wetting behaviors.