25 July 2017
Functionally replaces the derrickman in guiding pipe from the set-back to the travelling equipment. Some systems have hoist mechanisms and some work in conjunction with an […]
18 July 2017
The hydraulic fluid volume recoverable from the accumulator system between the maximum charging pressure and the minimum operating pressure of the accumulator. The minimum operating pressure […]
18 July 2017
A belt with a trapezoidal cross section, made to run in sheaves, or pulleys, with grooves of corresponding shape.
18 July 2017
An opening in a side of a standard derrick at the floor level having the form of an inverted V. This opening is opposite the drawworks. […]
18 July 2017
A void; an absence of matter of any kind. Complete vacuum is not attained, but a partial vacuum or reduction in pressure through suction is achieved […]
18 July 2017
A device used to control the rate of flow in a line to open or shut off a line completely, or to serve as an automatic […]
18 July 2017
A term used to describe a product which is not susceptible to the action of gases or other vapors. Its principal application on a drilling rig […]
25 July 2017
A measure of a liquid’s resistance to flow. The viscosity of petroleum products or mud is usually expressed and measured by the time it takes for […]
10 November 2021
The in-line and transverse oscillation of a riser in a current induced by the periodic shedding of vortices.
18 July 2017
1) a cavity in a rock. 2) a small cavern, larger that a pore but too small to contain a person. Typically found in limestone subject […]
18 July 2017
Pertaining to the time when drilling or completion operations are suspended so that the cement in a well can harden sufficiently.
18 July 2017
Also called filter cake or mud cake. See filter cake.
