Inflatable packer with protective rings

Details Inflatable packer with protective rings Inflatable packer with protective rings

1993-09-28

1994-10-11

Britts, Ramon S.

Wells

Packers or plugs

Expanded by confined fluid from central chamber, pump or...

166195, E21B 33127

Patent

active

053538714

ABSTRACT:
An inflatable packer apparatus having an inner elastomer sleeve covered by armor such as overlapped, longitudinal slats that extend between upper and lower collars. The end portions of such slats pass through stress rings having outwardly flared nose portions, and thin protector rings mounted inside the nose portions are employed to distribute very localized contact loads form the edge of the slats to the stress rings to prevent the formation of cracks in such rings. The apparatus further includes an elastomeric sleeve member which is expanded into sealing contact with a well bore wall by fluid pressure applied to the inside of the inner elastomeric sleeve member.

REFERENCES:
patent: B430326 (1876-03-01), Hutchison
patent: 4003581 (1977-01-01), Hutchison
patent: 4082298 (1978-04-01), Sanford
patent: 4406461 (1983-09-01), McGill
patent: 4424861 (1984-01-01), Carter, Jr. et al.
patent: 4886117 (1989-12-01), Patel
patent: 4892144 (1990-01-01), Coone
patent: 4979570 (1990-12-01), Mody
patent: 5280824 (1994-01-01), Eslinger et al.

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