E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
255/26
E21B 17/16 (2006.01) E21B 17/20 (2006.01) F16L 11/18 (2006.01)
Patent
CA 1234095
ABSTRACT OF THE DISCLOSURE A flexible drill pipe adapted for connection in a drill string, having sufficient wall thickness in order to with- stand forces imposed by drilling a well. The flexible pipe has a plurality of cuts defining interlocking teeth and recesses on axially adjacent segments of the pipe, the teeth in one segment being positioned in the recesses of, and interlocking with the teeth of, the adjacent segment. Each of the teeth includes a generally semicircular crown section, two essentially flat shoulders and a tapered base portion, with the curved, tapered sides of circumferentially adjacent bases forming the semicircular recesses for receiv- ing the crowns or axially adjacent interlocking teeth.
476604
Smart & Biggar
Texas Eastern Drilling Systems Inc.
LandOfFree
Flexible drill pipe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible drill pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible drill pipe will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1269320