Naphthenic Hydrocarbon
Naphthenic Hydrocarbon :
(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-base muds, the amounts and types of hydrocarbons in the mud can be an important parameter in the overall performance of the mud. See: aliphatic compound, aromatic hydrocarbon, olefinic hydrocarbon, paraffinic hydrocarbon
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