25 July 2017
The course of drilling fluid downward through the annulus and upward through the drill stem, in contrast to normal circulation in which the course is downward […]
18 July 2017
The derrick or mast, drawworks, and attendant surface equipment of a drilling or workover unit.
18 July 2017
The capacity to hold the hook-load and retard the continuous movement of the hook load within reasonable specified limits compatible with specific requirements.
18 July 2017
To prepare the drilling rig for making hole, that is, to install tools and machinery before drilling is started.