Drill string component

Details Drill string component Drill string component

E - Fixed Constructions

21

B

E21B 17/10 (2006.01) E21B 7/04 (2006.01)

Patent

CA 2058956

2058956 9100411 PCTABS00003 A drill string component for preventing chafing of a drill casing as a result of contact between the drill casing and a rotating drill string comprises a central mandrel (2) having rotatably mounted thereon a sleeve (11). The sleeve (11) is retained between shoulders defined on the mandrel to prevent accidental loss of the sleeve in the event of excessive wear in the supporting bearings. Axial thrust loads are transferred from the outer sleeve (11) to the mandrel by way of thrust bearings supported on the mandrel shoulders. Seals (24A, 24B) located between the outer sleeve seal bodies (23) and an inner sleeve (9) prevent the ingress of contaminants to the zone of bushings (12, 13) which rotatably support the outer sleeve.

Affiliated with

Also associated with

Rating

Drill string component does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drill string component, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill string component will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1576114