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 […]

The derrick or mast, drawworks, and attendant surface equipment of a drilling or workover unit.

The capacity to hold the hook-load and retard the continuous movement of the hook load within reasonable specified limits compatible with specific requirements.

The type of mast that can be folded for moving as contrasted with the standard derrick, which has to be completely dismantled and re-erected.

The riser adaptor is the component that provides the change in connection from API flange or hub connection to a proprietary OEM riser connection for connection […]

Riser analysis is a study of the variables within the riser system to determine capabilities and limitations of the string in use, taking into account metocean […]

Riser hang-off is the term employed when we suspend the stack or LMRP and riser from the rig. It may be hung-off because of weather or […]

A riser joint consists of a section of pipe, with couplings on each end. It may have provision for supporting integral and non-integral auxiliary lines (flowlines, […]

A system that slows the rapid stroke acceleration of the riser tension rods due to the sudden reduction in the load caused by a riser connector […]

A drilling bit made of two, three, or four cones, or cutters, that are mounted on extremely rugged bearings. The surface of each cone is made […]