E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 4/00 (2006.01) E21B 4/02 (2006.01)
Patent
CA 2056043
A flow restrictor for a mud lubricated earth drilling motor consisting of a first seal support non-rotatably coupled to an outer housing and a second seal support non- rotatably coupled to an inner tubular member which is telescopically received within the outer housing. The first seal support having a first seal face and the second seal support having a second seal face . The first seal support and the second seal support are axially movable. A plurality of springs engage the first seal support to exert a biasing force bringing the first seal face into sealing engagement with the second seal face to form a mechanical seal, having a first side adjacent the outer housing and a second side adjacent the inner tubular member. A first fluid flow passage extends from the interior drilling mud flow passage of the inner tubular member the first side of the mechanical seal. A second fluid flow passage extends from the second side of the mechanical seal to exterior of the outer housing. At least one groove is provided across the first seal face and the second seal face, extending from the first side to the second side of the mechanical seal, such that a continuous flow of drilling mud passes through the groove and is vented to the exterior of the outer housing via the second fluid flow passage.
Foote Dean
Wenzel Kenneth Hugo
Dreco Energy Services Ltd.
Foote Dean
Wenzel Kenneth Hugo
Woodruff Nathan V.
LandOfFree
Flow restrictor for mud lubricated earth drilling motors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flow restrictor for mud lubricated earth drilling motors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow restrictor for mud lubricated earth drilling motors will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1496920