HyperDic: drilling_fluid

English > 1 sense of the expression drilling fluid:
NOUNsubstancedrilling fluid, drilling muda mixture of clays and chemicals and water
English > drilling fluid: 1 sense > noun 1, substance
MeaningA mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole.
Synonymdrilling mud
Broaderlubricant, lubricator, lubricating substance, lubeA substance capable of reducing friction by making surfaces smooth or slippery

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