18 July 2017
To obtain cuttings for geological information as formations are penetrated by the bit. The samples are obtained from drilling fluid as it emerges from the wellbore […]
18 July 2017
A spool-shaped attachment on the end of the catshaft around which rope for hoisting and pulling is wound. Also called Automatic cathead. See Breakout cathead, Makeup […]
18 July 2017
A hoisting or pulling line powered by the cathead and used to lift heavy equipment on the rig. See Cathead.
18 July 2017
Elongated platform adjacent to the rig floor where pipe is laid out and lifted into the derrick. The catwalk is connected to the rig floor by […]