Inflatable packer with protective rings

Details Inflatable packer with protective rings Inflatable packer with protective rings

E - Fixed Constructions

21

B

E21B 33/127 (2006.01)

Patent

CA 2130958

ABSTRACT OF THE DISCLOSURE 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.

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