F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
255/12
F04C 15/00 (2006.01) E21B 4/02 (2006.01) F04C 2/08 (2006.01) F04C 2/107 (2006.01)
Patent
CA 1082681
ABSTRACT OF THE DISCLOSURE A progressing cavity fluid motor for driving a drill bit for deep drilling tools is described. Such a motor is mounted on a drill string and is powered by a fluid such as drilling mud. The pump includes a housing, a stator with female helical threads within the housing and a rotor with male helical threads mounted inside of the stator. The drill bit is connect- ed to the rotor. In the present invention the rotor has a threaded surface which is formed of an elastically deformable sleeve supported by a carrier shaft. The sleeve is mounted on the carrier shaft in such a manner as to prevent rotation between the two so that the sleeve drives the shaft by positive engage- ment between these two elements. Means are arranged for intro- ducing a pressure inside of the elastically deformable sleeve for expanding the sleeve radially outwardly. This pressure is greater than the fluid pressure existing in the working cavity between the facing surfaces of the male and female threads and preferably changes as a function of the working pressure in the drilling mud.
302593
Christensen Inc.
Gowling Lafleur Henderson Llp
LandOfFree
Direct drive bit for deep drilling tools does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Direct drive bit for deep drilling tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct drive bit for deep drilling tools will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-342278