water mud

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drilling fluid (mud) in which water or saltwater is the major liquid phase as well as the wetting (external) phase. General categories of water-base muds are fresh water, seawater, salt water, lime, potassium and silicate. Subcategorizes of these abound.

Synonyms: water-based drilling fluid

See: anhydriteanionfatty acidlime mudlow-solids mudlow-solids, nondispersed mudpotassium mudsaltwater mudsurface tension