18 July 2017
A specification of a derrick used to indicate the resistance of the derrick to the force of wind. The wind load rating is calculated according to […]
18 July 2017
A cable composed of steel wires twisted around a central core of fiber or steel wire to create a rope of great strength and considerable flexibility. […]
18 July 2017
A slender, rodlike or threadlike piece of metal, usually small in diam, that is used for lowering special tools (such as logging sondes, perforating guns, and […]
18 July 2017
The normal operating pressure to which a component is designed to operate continuously with a safe drilling margin below the point at which the material will […]