Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent
1996-04-03
1997-10-14
Dang, Hoang C.
Boring or penetrating the earth
Bit or bit element
Rolling cutter bit or rolling cutter bit element
E21B 1018
Patent
active
056762143
ABSTRACT:
A moth type rolling cutter drill bit has a plurality of rolling cutters mounted on legs, each rolling cutter having a back face portion and a gage face portion, and a high velocity fluid nozzle which directs a stream of high velocity fluid toward the cutter. Each cutter has a row of gage teeth to cut the gage of the borehole, and at least one of the cutters has a plurality of flow channels spaced apart around its gage face portion to provide fluid communication from the back face of the cutter and between and around pairs of adjacent gage teeth. Each flow channel is inclined at an angle to a radius of the cutter so as to be oriented towards the stream of fluid from the high velocity nozzle as the teeth adjacent to the flow channel engage the formation being drilled.
REFERENCES:
patent: 1784476 (1930-12-01), Zublin et al.
patent: 1990007 (1935-02-01), Sperry
patent: 2108955 (1938-02-01), Zublin
patent: 2886293 (1959-05-01), Carr et al.
patent: 2939684 (1960-06-01), Payne
patent: 3618682 (1971-11-01), Bennett
patent: 4167220 (1979-09-01), Ernst et al.
patent: 4516642 (1985-05-01), Childers et al.
patent: 4546837 (1985-10-01), Childers et al.
patent: 5096005 (1992-03-01), Ivie et al.
Pearce David E.
Walter James C.
Camco International Inc.
Dang Hoang C.
LandOfFree
Flow channels for tooth type rolling cutter drill bits 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 channels for tooth type rolling cutter drill bits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow channels for tooth type rolling cutter drill bits will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1548691