Definition(s)
Rotating Head (or Rotating Drilling Head)
A rotating, low pressure sealing device used in drilling operations utilizing air, gas, or foam (or any other drilling fluid whose hydrostatic pressure is less than the formation pressure) to seal around the drill stem above the top of the BOP stack.
Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards
Rotating Head
Low-pressure diverter designed to rotate with drill pipe and used mainly in air drilling.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Rotating Head
“Rotating head” means a rotating, pressure sealing device used in drilling operations utilizing air, gas, foam, or any other drilling fluid whose hydrostatic pressure is less than the formation pressure.
Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. Regulations