E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
255/73
E21B 10/60 (2006.01)
Patent
CA 1263374
IMPROVED ENHANCED CIRCULATION DRILL BIT Abstract The enhanced flow drill bit in one embodiment includes an upper body section having a bore therein and a lower body section formed integrally with the upper body section and including three passageways to transmit fluid outwardly of the drill bit body. The passageways, when intermittently open, transmit fluid flowing downwardly through the drill bit body and outwardly of the passageways to cause a cross flow in the area of the cone-type cutters. A rotor is mounted within a bore within the upper body section to intermittently open and close passageways to provide for an intensification of flow through the remaining open passageway to create high jet impact force of fluid flowing outwardly of the drill bit body to enhance cross flow and the removal of drill cuttings. Annular internal reflective surfaces are provided to substantially utilize the effect of any transient pressure surges that are created during operation of the invention.
515306
Mccullough Doyle W.
Ridout & Maybee Llp
LandOfFree
Enhanced circulation drill bit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Enhanced circulation drill bit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced circulation drill bit will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1284165