Drilling Industry Glossary

cable tool CaCl₂ weight calcium, total hardness cap rock cased hole casing casing centralizer casing coupling (collar) casing hanger casing head casing point casing pressure casing shoe casing string casing wear cement cement additive cement bond cement bond survey cementing cementing pump chlorides chlorides whole mud choke choke line christmas tree circulate circulation sub close in coarse LCM coiled tubing collapse pressure complete a well completion completion fluid concentration condensate conductivity conductor pipe contract depth contractor core cratering critical rate critical velocity crooked hole crossover sub crude oil cuttings

Calcium Total Hardness

Total hardness of water or mud filtrate is due to the presence of calcium (Ca²⁺) and magnesium (Mg²⁺) ions.

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