naphthenic hydrocarbon | Energy Glossary

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naphthenic hydrocarbon

1. n. [Drilling Fluids]

A type of organic compound of carbon and hydrogen that contains one or more saturated cyclic (ring) structures, or contains such structures as a major portion of the molecule. The general formula is CnH2n. Naphthenic compounds are sometimes called naphthenes, cycloparaffins, or hydrogenated benzenes. Naphtha is a refined petroleum fraction that contains a high percentage of these types of hydrocarbons. In drilling fluids, particularly oil-based muds, the amounts and types of hydrocarbons in the mud can be an important parameter in the overall performance of the mud.

See: aliphatic compoundaromatic hydrocarbonolefinic hydrocarbonparaffinic hydrocarbon