دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a stable. translucent micellar emulsion of oil. one or more surface active agents. water. and sometimes an electrolyte. A microemulsion is classed as an emulsion because it is a mixture of immiscible substances (oil and water) and because it can have oil-in-water and waterin- oil phases. It can also have a phase in which neither oil nor water is dispersed. however, but are alternated in layers. A microemulsion has certain properties that are like a solution rather than an emulsion: it is optically clear rather than clouded. and it is stable, i.e.. the oil and water do not separate. Microemulsions are used for chemical flooding of reservoirs. See chemical flooding, emulsion. solution.

an emulsion with very tiny, highly dispersed bubbles. May be very stable and highly viscous when the internal phase is high (>75%).

surfactants that exhibit an effect on water or oil by changing fluid properties at the interface of the fluid. May be emulsifiers, demulsifiers, surface tension lowering , flocculants, deflocculants, wetting agents, etc.