18 July 2017
A drawworks with an advanced controls system and additional power to provide the heave compensation of the string on a floating vessel instead of the traditional […]
18 July 2017
An accumulator system is regarded as adiabatic when the pressure change is fast enough that no significant heat is transferred between the outside environment and the […]
18 July 2017
A choke in which the position of a conical needle, sleeve, or plate may be changed with respect to their seat to vary the rate of […]
18 July 2017
A method of rotary drilling that uses compressed air as the circulation medium. The conventional method of removing cuttings from the wellbore is to use a […]