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
Top Drive
The top drive rotates the drill string end bit without the use of a kelly and rotary table. The top drive is operated from a control console on the rig floor.
RSS Feeds
Print This Page
Text Size
The top drive rotates the drill string end bit without the use of a kelly and
rotary table. The top drive is operated from a control console on the rig
floor.