Top Drive

Top Drive or Power Swivel is swivel that hangs on to the hook of the travelling block. It has the passage way for the mud to flow from mud system through the drill string. Top drive also has powerful motors to rotate the drill string and bit. Top drive replaces, kelly, kelly bushing and rotating master bushing.

More Topics and Illustrations in Upstream Oil & Gas

Previous
Previous

Travelling Block

Next
Next

Semi-Submersible Rig