18 July 2017

Drawworks

The hoisting mechanism on a drilling rig. It is essentially a large winch that spools off or takes in the drilling line and thus raises or […]
18 July 2017

Drill bit

The cutting or boring element used for drilling. See bit.
18 July 2017

Drill collar

A heavy, thick-walled tube, usually steel, used between the drill pipe and the bit in the drill stem to provide a pendulum effect to the drill […]
18 July 2017

Drill floor manipulator arm

An extending or telescoping arm with attachable heads, used to guide riser to well center, manipulate tubulars or other items about the drill floor.