Drilling Industry Glossary
fault
filtrate alkalinity
fine LCM
fish
fishing
float collar
float shoe
floorhand
formation
fourble
fracture gradient
fracture pressure
friction
friction factor (F.F.)
funnel viscosity
Funnel Viscosity
Funnel viscosity is defined as seconds for one quart of mud to flow through a Marsh funnel. The unit of it is (sec/qt). This is not a true viscosity, but serves as a qualitative measure of how thick the mud is.
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