Zonal isolation tools and methods of use

Details Zonal isolation tools and methods of use Zonal isolation tools and methods of use

E - Fixed Constructions

21

B

E21B 33/127 (2006.01) E21B 33/068 (2006.01)

Patent

CA 2544657

Zonal isolation tools and methods of using same are described. The tonal isolation tools include a wellbore sealing member expandable by fluid pressure to contact a wellbore over an initial contact area, an inflation valve open during expansion of the sealing member to the initial contact area and closed upon the fluid pressure reaching a predetermined setting, a vent between the sealing member and a wellbore annulus adapted to open after the inflation valve is closed, and a compressive load imparted to the sealing member via a linear piston to achieve a sealing point at the leading edge of the sealing member. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims.

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