18 July 2017

Drilling contractor

An individual or group that owns a drilling rig or rigs and contracts services for drilling wells.
18 July 2017

Drilling crew

A driller, a derrickman, and two or more helpers who operate a drilling or workover rig for one tour each day.
18 July 2017

Drilling fluid

Circulating fluid, one function of which is to lift cuttings out of the wellbore and to the surface. Other functions are to cool the bit and […]
18 July 2017

Drilling foreman

The supervisor of drilling or workover operations on a rig. Also called a rig manager, rig supervisor, rig superintendent, or toolpusher.