دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a chemical with properties that cause the water droplets in a water-inoil emulsion to merge and settle out of the oil, or oil droplets in an oil-in-water emulsion to coalesce, when the chemical is added to the emulsion. Also called emulsion breaker. See demulsify, emulsion breaker.

a chemical additive, usually a surfactant, that helps break emulsions.

n: a mixture in which one liquid, termed the dispersed phase, is uniformly distributed (usually as minute globules) in another liquid, called the continuous phase or dispersion medium. In an oil-in-water emulsion, the oil is the dispersed phase and the water the dispersion medium;in a waterin- oil emulsion, the reverse holds.

n: A substantially permanent heterogeneous mixture of two or more liquids that do not normally dissolve in each other but are held in a dispersed state, one within the other. This dispersion is accomplished by the combination of mechanical agitation and pres

a physical mixture of two or more immiscible phases.

n: see oil-in-water emulsion mud.

n: see emulsion, reverse emulsion.

a common oilfield emulsion where oil droplets (the internal phase) are suspended and surrounded by the water (the continuous or external phase).

n: any conventional or special water-base mud to which oil has been added. The oil becomes the dispersed phase and may be emulsified into the mud either mechanically or chemically. Also called oil-emulsion mud.