Stress relief groove for drill pipe

Details Stress relief groove for drill pipe Stress relief groove for drill pipe

1992-12-03

1994-02-15

Arola, Dave W.

Pipe joints or couplings

With strain relief

285333, 285286, F16L 1304

Patent

active

052860698

ABSTRACT:
The fatigue life of the tube section of a joint of drill pipe is increased by locating a stress relief groove in the weld necks of the tool joints adjacent the welds.

REFERENCES:
patent: 1714818 (1929-05-01), Reed
patent: 2239942 (1941-04-01), Stone et al.
patent: 3691882 (1972-09-01), Massey
patent: 4076436 (1978-02-01), Slator et al.
patent: 4594020 (1986-06-01), Hughes
patent: 4601491 (1986-07-01), Bell et al.
patent: 4760889 (1988-08-01), Dudman
patent: 4892337 (1990-01-01), Gunderson et al.
patent: 5040622 (1991-08-01), Winship et al.
IADC/SPE paper entitled "What Difference Does MIU Make in the Fatigue Life of Drillpipe?", presented at 1992 IADC/SPE Drilling Conference in New Orleans, Louisiana--Feb. 18-21, 1992.
P. 4259 from Composite Catalog of 1962-1963 describing "Reed Design Stress Relief Groove".
P. 19 of Spec 7: Rotary Drilling Equipment; American Petroleum Institute Table 6.4 shown on p. 20; Table 6.6 shown on p. 21.

Affiliated with

Also associated with

Rating

Stress relief groove for 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 Stress relief groove for drill pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stress relief groove for drill pipe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1202228