Calcium Mud
Calcium Mud :
(n.) Drilling Fluids. A class of water-base drilling fluid that utilize dissolved Ca+2 as a component. Examples are lime mud, gyp mud and calcium chloride [CaCl2] mud. The latter is rarely used, but is based on solutions of CaCl2 that, in high concentration, can impart density up to 11.6 lbm/gal (1.39 g/cm3) and has been touted as providing shale inhibition. See: anhydrite, calcium contamination, calcium hydroxide, calcium sulfate, clay-water interaction, flocculant, gypsum, hardness ion, inhibit, inhibitive mud
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