دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the density of a solid or liquid substance at a specified temperature. Sometimes referred to as true density or density in vacuo. See density.

the volume a solid occupies when added to a fluid divided by its weight. m3/kg or gal/lb.

n: 1. the process of sucking up, taking in and making part of an existing whole. Compare adsorption. 2. the process in which short wave radiation is retained by regions of the earth.

n: The penetration or apparent disappearance of molecules or ions of one or more substances into the interior of a solid or liquid.

n: a mechanical refrigeration system in which the refrigerant is absorbed by a suitable liquid or solid. The most CODlD1only used refrigerant is ammonia;the most commonly used absorbing medium is water. Compare compressionrefrigeration cycle.

a precision sized micron particle material used for testing the solids stopping capability of filters.

n: A cement that can quickly solidify. It is manufactured by adding accelerater to oil well cement.

a solid stick of chloro-acetic or sulfamic acid for small scale removal of acid soluble deposits.

a highly porous solid, usually a charcoal. Used for adsorption of unwanted materials.

n: a form of carbon characterised by a high absorptive and adsorptive capacity for gases, vapours, aIM1 colloidal solids.

n: 1. in general, a substance added in small amounts to a larger amount of another substance to change some characteristic of the latter. In the oil industry, additives are used in lubricating oil, fuel, drilling mud, and cement. 2. in cementing, a substance added to cement to change its characteristics to satisfy specific conditions in die well. A cement additive may work as an accelerator, retarder, dispersant, or other reactant.

n: The agent put into the drilling fluid in order to change some performances of the drilling fluid or slurry.

a compound incorporated into a gas, liquid, or solid system to alter the properties for a particular purpose.