TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

A turbodrill or Dyna-Drill.  4, fiche 1, Anglais, - downhole%20mud%20motor

Record number: 1, Textual support number: 1 CONT

When a downhole motor is used, it is attached to the lower end of the drill string; then the bit is attached to the bottom end of the downhole motor. The drilling motor rotates the bit, rather than the bit being rotated by the drill pipe string.  5, fiche 1, Anglais, - downhole%20mud%20motor

Record number: 1, Textual support number: 2 CONT

There are two types of turbodrill or down-hole mud motor: the turbine, of which there are about six successful types, and the Dynadrill, a Moyno pump operating in reverse, consisting of a spiral shaft contained within a rubber sleeve. ... The down-hole turbine is basically similar to a gas turbine having a multi-stage stator and rotor.  2, fiche 1, Anglais, - downhole%20mud%20motor

Record number: 1, Textual support number: 1 OBS

Source of "downhole motor": Kennedy, John L. Fundamentals of Drilling: Technology and Economics. Tulsa (Okla.): PennWell, 1983, p. 34.  5, fiche 1, Anglais, - downhole%20mud%20motor

Fiche 1,  Justifications,  Français

Fiche 1,  Justifications,  Espagnol