Inflatable packer with bladder shape control

Details Inflatable packer with bladder shape control Inflatable packer with bladder shape control

E - Fixed Constructions

21

B

E21B 33/126 (2006.01) E21B 33/127 (2006.01)

Patent

CA 2165907

An inflatable packer assembly used in well service work and having a mandrel that carries a normally retracted inflatable packer unit. The unit includes an inner elastomer bladder surrounded by a reinforcement. To control the shape of the unit during inflation and thereby prevent the formation of Z-folds in the bladder, its axial stiffness is preferentially increased relative to its circumferential or hoop stiffness by devices such as carbon fibers or fiberglass tape.

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