دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a light hydrocarbon liquid obtained by condensation of hydrocarbon vapours. It consists of varying proportions of butane, propane, pentane, and heavier fractions, with little or no methane or ethane.

the part of the hydrocarbon stream that is a vapor in the formation and condenses to a liquid after being cooled. Normally the volatile condensate has a composition of C5 to C8 and an API gravity of >40.

n: a natural gas liquid recovered from gas well gas in lease separators or natural gas field facilities. Consists primarily of pentanes and heavier hydrocarbons. Usually blended with crude oil for refining.

n pi: liquids that have been extracted from natural gas, such as propanes, butanes, pentanes, and heavier products. Liquid hydrocarbons extracted in gas processing plants are often referred to as plant products,"

n: the saturated hydrocarbon compounds of the general formula Cn2n (e.g., ethene or ethylene, C2"4). They are cycloparaffin derivatives of cyclopentane (CS"IO) or cyclohexane (C6"12) found in crude petroleum.

n: a geologic time period in the Paleozoic era, from 320 to 280 million years ago. Also, the latter part of the Carboniferous period. It was named for the outcrops of coal in Pennsylvania. pentane n: a liquid hydrocarbon of the paraffin series, CsHI2

a five carbon chain alkane. Used in the lab to check for asphaltenes (precipitates them).

n: a hydrocarbon mixture consisting mostly of normal pentane (CSHI2) and heavier components that are extracted from natural gas.