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Drilling Industry Glossary

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S

Spacer

shoe track (ST)
shut-in bottomhole pressure (SIBHP)
single slurry
SK
slurry
slurry yield
spacer
spaghetti
surface casing
survey

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.