Sealing element for inflatable packer

Details Sealing element for inflatable packer Sealing element for inflatable packer

1992-11-25

1994-01-25

Bui, Thuy M.

Wells

Packers or plugs

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

166191, E21B 33127

Patent

active

052808246

ABSTRACT:
The outer, sealing cover of an inflatable packer comprises an alternating series of thick and thin annular portions which act to effect greater sealing stresses and to inhibit the propagation of cracks or tears in the elastomeric cover. Bonding with only portions of the underlying slats as well as a tapered contour and spacing from an end fitting act to help to retain the cover in its proper position during running and retrieval as well as decreasing the likelihood of the development of cracks and/or tears.

REFERENCES:
patent: 3837947 (1974-09-01), Malone
patent: 4424861 (1984-01-01), Carter, Jr. et al.
patent: 4796707 (1989-01-01), Halbardier
patent: 4832120 (1989-05-01), Coronado
patent: 5020600 (1991-06-01), Coronado
patent: 5143154 (1992-09-01), Mody et al.
patent: 5205567 (1993-04-01), Quinlan et al.

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