unweighted mud

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A mud that contains no commercial weighting material. Native-solids muds are unweighted muds, containing no barite. More solids-control techniques are available for unweighted muds than for weighted muds. In fact, dilution of unweighted muds is highly economical.

Synonyms: native-solids mud

Antonyms: weighted mud

See: hematitenative clayweighting material

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