Multiple stage cementer and casing inflation packer

Details Multiple stage cementer and casing inflation packer Multiple stage cementer and casing inflation packer

E - Fixed Constructions

21

B

166/17

E21B 33/14 (2006.01) E21B 33/127 (2006.01) E21B 33/16 (2006.01) E21B 34/14 (2006.01)

Patent

CA 1159360

Abstract A combination multiple stage cementing tool and casing inflation packer includes an inflatable packer having a packer mandrel and an inflatable packing element disposed about the mandrel A cementing tool includes a cylindrical outer casing, a cementing port disposed through a side wall of the casing, and a sliding sleeve valve assembly for opening and closing the cementing port. The cylindrical outer casing of the cement- ing tool is permanently attached to the packer mandrel and has a maximum outer diameter at least as great as a maximum outer diameter of the inflatable packing element when the inflatable packing element is in an uninflated position.

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