25 July 2017
The ratio of the weight of a given volume of a substance at a given temperature to the weight of an equal volume of a standard […]
18 July 2017
An operation designed to indicate the point at which fluids are escaping from the wellbore into a cavernous or porous formation. Also used to determine point […]
18 July 2017
A spool attachment on the makeup cathead to permit use of a spinning chain to spin up or make up drill pipe. See spinning chain.
18 July 2017
A Y-shaped chain used to spin up (tighten) one joint of drill pipe into another. One end of the chain is attached to the tongs, another […]