Metal back-up ring for downhole seals

Details Metal back-up ring for downhole seals Metal back-up ring for downhole seals

1997-04-01

1999-10-05

Reichard, Lynne A.

Seal for a joint or juncture

Process of dynamic sealing

Flexible ring

277339, 277342, F16J 1516, F21B 33128

Patent

active

059611235

ABSTRACT:
A sealing element for a packer or bridge plug or other downhole tool is illustrated which employs the use of back-up rings above and/or below a resilient seal. The various sleeves which are moved with respect to each other to compress the sealing element are made so that they are physically connected to the back-up rings. As a result, upon run-in, inadvertent compression of the seal is prevented and upon release, a physical separation occurs between the back-up ring and the sealing element, which allows the sealing element to expand and relax. Subsequent upward movement of the packer or bridge plug easily deflects the back-up ring since the sealing element is no longer in a compressed state directly underneath it. The packer then can easily be removed.

REFERENCES:
patent: 2885009 (1959-05-01), Baker
patent: 2921632 (1960-01-01), Clark, Jr.
patent: 2961633 (1960-01-01), Baker
patent: 3358766 (1967-12-01), Current
patent: 3412790 (1968-11-01), Brown
patent: 3554280 (1971-01-01), Tucker
patent: 4375240 (1983-03-01), Baugh et al.
patent: 4441559 (1984-04-01), Evans et al.
patent: 4753444 (1988-06-01), Jackson et al.
patent: 4791992 (1988-12-01), Greenlee et al.
patent: 5390737 (1995-02-01), Jacobi et al.
patent: 5404956 (1995-04-01), Bohlen et al.
patent: 5433269 (1995-07-01), Hendrickson

Affiliated with

Also associated with

Rating

Metal back-up ring for downhole seals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Metal back-up ring for downhole seals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal back-up ring for downhole seals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1162282