Absorption | The process of removing vapors from a stream of natural gas by passing the natural gas through liquids or chemicals which have a natural attraction to the vapors to be removed from the stream. |
Acid Gas | The hydrogen sulfide (H2S) and/or carbon dioxide (CO2) contained in or extracted from natural gas or other streams. |
Adsorption | The process of removing natural gas liquids from a stream of natural gas by passing the natural gas through granular solids which have a natural attraction to the liquids to be removed from the stream. |
Allocation | The process of apportioning the total volume (or value) of produced hydrocarbons to the wells that flow through a gathering system or to a common delivery point (CDP). |
API Gravity | A Hydrocarbon density scale, beginning at 7 (the densest) and running through 52 (the lease dense). It is an inverse measure of a petroleum liquid's density relative to that of water (also known as specific gravity). |
Associated Gas | Natural gas from an oil well. Also called casinghead gas. |
Atmospheric Distillation | Refining process that szeparates light hydrocarbons from crude oi. |
Atmospheric Pressure | The pressure exerted on the earth by the earthÕs atmosphere.Ê A pressure of 760 mm of mercury, 29.92 inches of mercury, or 14.696 psia is used as a standard for some measurements.Ê The various state regulatory bodies have set other standards for use in measuring the legal volume of natural gas that is sold or processed.Ê Atmospheric pressure may also refer to the absolute ambient pressure at any given location. |