Reinflatable external casing packer and method of casing

Details Reinflatable external casing packer and method of casing Reinflatable external casing packer and method of casing

E - Fixed Constructions

21

B

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

Patent

CA 2082232

DOCKET NO.2944436-US ABSTRACT OF THE DISCLOSURE The present invention is directed to a reinflatable external casing packer which is operable in three modes, including: a filling mode of operation, a locking mode of operation, and a reinflation mode of operation. A valve system is provided which allows for selective filling and reinflation ofthe external casing packer in response to suspected or detected loss of pressure within the inflation chamber. The present invention may also be characterized as a method of placing a wellbore.

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