18 July 2017
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
An extending or telescoping arm with attachable heads, used to guide riser to well center, manipulate tubulars or other items about the drill floor.
18 July 2017
Heavily seamless tubing used to rotate the bit and circulate the drilling fluid. Joints of pipe approximately 30 ft (9 m) long are coupled together by […]
18 July 2017
All members in the assembly used for rotary drilling from the swivel to the bit, including the kelly, drill pipe and tool joints, drill collars, stabilizers, […]