دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the lowest temperature at which the chemical aniline and a solvent (such as the oil in oil-base muds) will mix completely. In general, the oil of oil-base muds should have an aniline point of at least 150F (66"C) to obtain maximum service life from the rubber components in the mud system.

n: The lowest temperature in which the same volume of oil and aniline dissolve in each other.

the aromatics content of a mixture.

n: 1. a negatively charged ion. 2. the ion in an electrolysed solution that migrates to the anode. See ion. Compare cation.

an ion with a negative charge.

process where a special resin exchanges chloride or hydroxide for contaminant anions such as fluoride, nitrate, sulfate and bicarbonate. Water purification is the primary use.

n: The process that the negative ion in the solution was absorbed in the surface of clay.

n: R-SO3-M (R is alkyl, M is cation),a kind of anionic surface active agent, mainly used as foaming agent of foam drilling fluid, for example alkane sulfonate.

n: A kind of surface acting agent. It can produce hydrophobic negative ion.

differences in rock – segments showing different responses when measured.

n: The character that the formation presents different intension in different direction.