18 July 2017

Rotary drilling

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 […]
18 July 2017

Rotary drilling rig

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, […]
18 July 2017

Rotary helper

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 […]
18 July 2017

Rotary hose

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 […]