18 July 2017
Steel pipe placed in an oil or gas well as drilling progresses to prevent the wall of the hole from caving in during drilling, to prevent […]
18 July 2017
A device secured around the casing at regular intervals to center it in the hole. Casing that is centralized allows a more uniform cement sheath to […]
18 July 2017
A tubular section of pipe that is threaded inside and used to connect two joints of casing.
18 July 2017
See Elevators.
18 July 2017
See Guide shoe.
18 July 2017
A derrick- or mast-fixed arm that is deployed solely for running casing. It provides stability and control in the running of casing singles.
18 July 2017
The entire length of all the joints of casing run in a well. Casing is manufactured in lengths of about 30 ft (9 m), and each […]
18 July 2017
A heavy, flanged steel fitting connected to the first string of casing. It provides a housing for slips and packing assemblies, allows suspension of intermediate and […]
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 […]
