دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a measure of the ability of a single fluid (such as water, gas, or oil) to flow through a rock formation when the formation is totally filled (saturated) with that fluid. The permeability measure of a rock filled with a single fluid is different from the permeability measure of the same rock filled with two or more fluids. Compare effective permeability, relative permeability.

permeability to a single phase fluid in a cleaned core.

n: Schlumberger wireline tool that measures phase shift and attenuation of a 1100 MHz wave. Used for Hydrocarbon identification independent of formation water salinity, thin bed detection, Hydrocarbon saturation and mobility and to evaluate invaded zones.

n: The phenomenon that substances automatically converge in the two-phase interface(The interfacial concentration is bigger than
the interior concentration).

n: the grouping of individual particles.

n: The process that the size
in the disperse phase turns from thin to bastard, from small to big through the absorption of particles in the multiphase disperse system.

forming larger droplets, bubbles, or particles from smaller droplets, bubbles, or particles.

n: a national trade association whose members are US and Canadian distributors of natural, manufactured, and mixed gases. AGA provides information on sales, finances, utilisation, and all phases of gas transmission and distribution. Its official publications are AGA Monthly and Operating Section Proceedings. Address: 1515 Wilson Boulevard;Arlington, VA 22209;(703) 841-8400;fax (703) 841- 8406.

n: the product of volts and amperes in an AC circuit when voltage and current are measured separately. If voltage and current are not in phase, apparent power is greater than true power.

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: a gas phase above a liquid phase in a vessel. It is placed there to protect the liquid from contamination, to reduce the hazard of detonation, or to pressure the liquid. The gas has a source outside of the vessel.

n: a representative sample taken from any suitable JX>int in a tank. or from a tank side sample connection after mixing the tank contents and before any significant separation of phases bas occurred.

v: to empty or depressure a vessel. Also called depressure.

to release gas pressure. In a reservoir, blow down is often after the oil recovery phase has been complete and the majority of the gas from the gas cap needs to be recovered.