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 […]

A device that fits into the rotary table to accommodate the slips and drive the kelly bushing so that the rotating motion of the rotary table […]

A drilling method in which a hole is drilled by a rotating bit to which a downward force is applied. The bit is fastened to and […]

Basically hoisting equipment, prime movers, and auxiliary equipment necessary to well drilling. Includes: rotary table, draw-works, kelly, swivel, hook, blocks, line, engines, mud pumps, and piping, […]

A worker on a drilling or workover rig, subordinate to the driller, whose primary work station is on the rig floor. On rotary drilling rigs, there […]

A reinforced flexible tube on a rotary drilling rig that conducts the drilling fluid from the standpipe to the swivel and kelly. Also called the mud […]

The principal component of a rotary, or rotary machine, used to turn the drill stem and support the drilling assembly. It has a beveled gear arrangement […]

A rotating pressure-sealing device used in drilling operations utilizing air, gas, foam, or any other drilling fluid whose hydrostatic pressure is less than the formation pressure.