دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the relative affinity between individual grains of rock and each fluid that is present in the spaces between the grains. If oil and water are both present, the water is usually in contact with the surface of each grain, and the rock is called water-wet. If, however, the oil contacts the surface, the rock is called oil-wet.

the measurement of the wetting phase currently on a formation. Wetting is driven by the fluid or the surfactants in the fluid in contact with the surface.