water-mud emulsifier | Energy Glossary

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water-mud emulsifier

1. n. []

A chemical used in preparation and maintenance of an emulsion mud, which is a water mud containing dispersed oil (or a synthetic hydrocarbon). Numerous types of emulsifiers will disperse oil into water muds, including sulfonated hydrocarbons, ethyoxylated nonylphenols, alkali-metal fatty-acid soaps, lignosulfonate, lignite and lignin at high pH. Even clays, starch and carboxymethylcellulose aid emulsion mud stability.

Rogers WF: "Oil-in-Water Emulsion Muds," in Composition and Properties of Oil Well Drilling Fluids, 3rd ed. Houston, Texas, USA: Gulf Publishing Company, 1963.

Synonyms: direct emulsifier

See: emulsionfatty-acid soapHLB numberhydrophile-lipophile balance numberinterfacial tensionoil-in-water emulsionsoapsynthetic-base fluid