Drilling Industry Glossary
salt content water phase
sand content
sandfrac
scratcher
seismograph
set casing
shoe track (ST)
shut-in bottomhole pressure (SIBHP)
side tracking
single slurry
sinusoidal buckling
SK
slack-off weight
slim hole drilling
slip velocity
slips
sloughing
slurry
slurry yield
snubbing
solids
solids adjusted for salt
soluble solids
spacer
spaghetti
specific gravity
spud or spudding in
spud date
stabilizer
stand (of pipe)
string
structure
stuck pipe
substructure
surface casing
survey
sustained casing pressure (SCP)
swabbing
sweeps
Spacer
A viscous fluid used to remove drilling fluids ahead of cement slurry. The spacer is prepared with specific fluid characteristics, such as viscosity and density that are designed to prevent the interaction between the mud and cement slurry.
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