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
Unrefined liquid petroleum. It ranges in gravity from 9°API to 55°API and in color from yellow to black.
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