دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: In order to guarantee turbine motor working normally, there is a adequate require for axial clearance. When installing turbine motor, we shoule choose the adequate height to adjust the axial clearance of turbine motor.

n: Consisted by two or more turbine motors which have the same compositions. Used for deep well drilling.

n: Usually refers to turbine motor and positive displacement drill.

n: a drilling tool made up in the drill string directly above the bit. It causes the bit to turn while the drill string remains fixed. It is used most often as a deflection tool in directional drilling, where it is made up between the bit and a bent sub (or, sometimes, the housing of the motor itself is bent). Two principal types of down-hole motor are the positive-displacement motor and the downhole turbine motor. Also called mud motor.

n: A special tool mounted in the BHA (q.v.) to drive the bit without rotating the drill string from surface (see positive displacement motor).

n: see turbodrill.

n: The dynamic drill that driving the turbine turn by drill fluid.

a motor spun by injected fluid moving past vanes affixed to the rotor.

a turbine motor for drilling.