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
Cuttings
The fragments of rock dislodged by the bit and brought to the surface in the drilling mud. Cuttings samples can be analyzed by geologists to obtain information about the formations drilled. One of the functions of drilling mud is to carry cuttings out of the hole.
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