Occupational Safety & Health Administration
All DOL
OSHA
Advanced Search
A to Z Index
|
En Espaņol
|
Contact Us
|
What's New
|
About OSHA
OSHA Home
RSS Feeds
Print This Page
Text Size
Back to Illustrated Glossary
Printing Instructions
Annulus
The space around a pipe in a well bore, the outer wall of which may be the wall of either the bore hole or the casing; sometimes termed the annular space.