دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: (NH4)2HPO4, white crystalline material. Usually used as mud thinner of drilling fluid and shale inhibiter.

n: Used for mud thinner directly and the main material of drilling fluid treating chemical of lignin derivant.

n: Produced by the reaction between sodium chromate and brown coal. Used as durothermic mud thinner.

n: a condition in which clay platelets remain stacked by a polyvalent cation, such as calcium, and are deflocculated by use of a thinner.

n: The condition in which the clay platelets are maintained stacked by a polyvalent cation, such as calcium.

n: the dispersion of solids that have stuck together in drilling fluid, usually by means of chemical thinners. See flocculation.

n: (1) The process of thinning the drilling fluid by bonding with (neutralizing or covering) the positive electrical charges of drilling fluid additives to prevent one particle of drilling fluid from being attracted to another particle. (2) Breakup of flocs

dispersing a clump or a gathering or “flocculated” of particles. Usually accomplished by dispersants or solvent thinners.

n: refer to thinner

n: a kind of drilling fluid additve ,usually used as mud thinner because its high ablity of complexing calcium ion

n: equilibrium between large segments of the earths crust, which float on the denser mantle in such a way that thicker segments extend higher and deeper than thinner segments, and lighter blocks rise higher than denser blocks.

n: a hydrocarbon liquid, usually lighter in weight than kerosene and heavier than paint thinner. In a gas processing plant. lean oil is used in an absorber to remove heavier hydrocarbons from natural gas.

n pi: naturally occurring special lignites, e.g., leonardite, that are produced by strip mining from special lignite deposits. Used primarily as thinners and emulsifiers.