freshwater drilling mud

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• Casing (borehole) — Casing is large diameter pipe that is assembled and inserted into a recently drilled section of a borehole and typically cemented into place.PurposeCasing that is cemented in place aids the drilling process in several ways: * Prevent… …   Wikipedia

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• animal — animalic /an euh mal ik/, animalian /an euh may lee euhn, mayl yeuhn/, adj. /an euh meuhl/, n. 1. any member of the kingdom Animalia, comprising multicellular organisms that have a well defined shape and usually limited growth, can move… …   Universalium