18 July 2017

Drilling out

Refers to drilling out of the residual cement which normally remains in the lower section of casing and the wellbore after the casing has been cemented.
18 July 2017

Drilling rate

The speed with which the bit drills the formation; usually called the rate of penetration.
18 July 2017

Drilling rig

See rig.
18 July 2017

Drilling spool

A connection component with ends either flanged or hubbed. It must have an internal diam at least equal to the bore of the blowout preventer and […]