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: See turbo-core drill.

n: The turbodrill whose main shaft is divided into two parts and presents definite angle. The slanting collar is installed between the shell of drill tool and lower nipple.

n: the turbodrill or the dynadrill

n: the drop of pressure that produced by the fluid pass through the turbine drillpipe while drilling in turbine drilling ,which put a force to shaft from up to down.

n: a kinds of low speed large torque turbine, which suitable to deep drilling.

n: see downhole motor.

n: a downhole component of drill string that rotates the bit without having to turn the rotary table. The term is sometimes applied to both positive displacement motors and turbodrills (q.v.).

a hydraulic powered motor used on the drilling sting or coiled tubing to provide rotation.