C1 | A standard abbreviation for Methane. |
C2 | A standard abbreviation for Ethane. |
C3 | A standard abbreviation for Propane. |
C5+ | A standard abbreviation for Pentanes Plus (IC5, NC5 and C6+). |
C6+ | A standard abbreviation for Hexane Plus. |
Calorimeter | An apparatus that is used to empirically determine the heating value of a combustible material. |
Carbon Dioxide | A heavy colorless gas having the chemical formula of CO2, which is commonly referred to as dry ice when in its solid form. |
Casinghead Gas | Natural gas that is produced from oil wells along with crude oil. |
Cf | A standard abbreviation for Cubic foot. |
Chromatograph | An analytical instrument that separates mixtures of substances into identifiable components by means of chromatogophry. |
Chromatography | A technique for separating a mixture into individual components by repeated adsorption and desorption on a confined solid bed used for analysis of natural gas and natural gas liquids. |
CNG | Compressed Natureal Gas |
CO2 | A standard abbreviation for Carbon Dioxide. |
Comingled Production | Production of hydrocarbons from multiple producing wells, zones or horizons into a single tank or meter that must be allocated to different owners due to differing ownership. |
Compressibility Factor | A factor usually expressed as ÒzÓ which gives the ratio of the actual volume of gas at a given temperature and pressure to the volume of gas when calculated by the ideal gas law without any consideration of the compressibility factor. |
Condensate | The liquid formed by the condensation of a vapor or gas; specifically, the hydrocarbon liquid separated from natural gas because of changes in temperature and pressure when the gas from the reservoir was delivered to the surface separators.Ê Condensate remains a liquid at atmospheric temperature and pressure. |
Cryogenic Plant | A gas processing plant which is capable of producing natural gas liquids products, including ethane, at very low operating temperatures. |
Cushing | The terminal in Oklahoma at which crude oil prices are quoted. |