Steep pitch helix packer

Details Steep pitch helix packer Steep pitch helix packer

E - Fixed Constructions

21

B

E21B 33/12 (2006.01)

Patent

CA 2300622

A seal element is provided which comprises inner and outer, concentric, radially spaced apart, tubular helical cages. Each cage is formed by a plurality of helically parallel steel coils joined at their upper and lower ends by integral sleeves. A nitrite bladder is positioned between the cages. The seal element can be expanded by supporting its base and applying compressive load.

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