دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: A group of clay minerals that includes montmorillonite. This type of mineral tends to swell when exposed to water. Bentonite includes minerals of the smectite group.

a clay that exhibits water swelling and fines dissociation problems when it occurs in authogenic form and is reactive with the flowing fluid. Smectite clays such as bentonite generate viscosity by forming a colloid suspension in water.