18 July 2017
Term used to describe the change in regulated pressure required before a hydraulic pressure regulator automatically adjusts to the change. Also called search band.
18 July 2017
The drilling line from the crown block sheave to the anchor, so called because it does not move. Compare fastline.
18 July 2017
A device to which the deadline is attached, securely fastened to the mast or derrick substructure. Also called a dead-line anchor.
18 July 2017
A mechanical slope indicator that consists of a ball rolling on a calibrated surface within a liquid filled enclosure that gives a visual indication of the […]