دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: A kind of invert emulsion mud that the chemical potential of drilling fluid is equal to the chemical potential of water in the drilled formation. The salinit in the water phase is usually equal to salinit in the shale water. It can prevent shale permeatin

n: the process by which a single quantity of crude oil emulsion is broken into oil and water. The emulsion is gathered and stored in a tank or container prior to treating. Compare flow-line treating.

n: 1. a pressurised device capable of transferring liquid;sometimes used to transfer crude oil and water mixtures if pump agitation would create unwanted emulsions.2. a small tank in which liquids are accumulated and drained by applying gas or air pressure above the liquid level. Such a vessel is usually located below a pipeline or other equipment at a location where an outside power source is not convenient for removing the drained liquids. Sometimes referred to as a drip.

n: a test in which different chemicals are added to bottle samples of an emulsion to determine which chemical is the most effective at breaking the emulsion into oil and water. Once an effective chemical is determined, varying amounts of it are added to bottle samples of the emulsion to determine the minimum amount required to break the emulsion effectively.

separate the emulsion into its components.

v: 1. to unscrew one section of pipe from another section, especially drill pipe while it is being withdrawn from the wellbore. During this operation, the tongs are used to start the unscrewing operation. 2.to separate, as gas from a liquid or water from an emulsion.

n: The voltage when emulsion begins to demulsify under the certain condition. A target used to measure stability of emulsion.

n: See emulsion.

n: [CH3(CH2)11SO3]2Ca, a kind of anionic surface active agent. Usually used for emulsion of water-in-oil drilling fluid.

n: a device used in most net-oil computers that senses the different dielectric constants of oil and water in a water-oil emulsion. See dielectric constant.