Oilfield Glossary
Oilfield Glossary
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film-forming amine

Diagram of quaternary amine
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1. n. [Drilling Fluids]
Also known as quaternary amine, a cationic amine salt in which the nitrogen atom has four groups bonded to it and carries a positive charge. Quaternary amines are used as oil-wetting agents, corrosion and shale inhibitors and bactericides.