18 July 2017

Rotary table

The principal component of a rotary, or rotary machine, used to turn the drill stem and support the drilling assembly. It has a beveled gear arrangement […]
18 July 2017

Rotating head

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.
18 July 2017

Roughneck

See Rotary Helper.
18 July 2017

Round trip

See make a trip.