Fracking Plug with a Telescopic Cone Configuration

Abstract: an example plug assembly includes: a telescopic cone comprising a sealing cone and an anchoring cone, wherein the sealing cone and the anchoring cone are configured to move together in a distal direction, while the sealing cone is allowed to move relative to the anchoring cone in a proximal direction; a seal mounted to the sealing cone; and an anchoring ring mounted to the anchoring cone and comprising a plurality of segments disposed in a circular array, wherein during deployment of the plug assembly, the telescopic cone is driven in the distal direction, thereby expanding the anchoring ring and the seal, and wherein as the seal is allowed to relax after deployment, the seal pulls the sealing cone away from the anchoring cone, which remains in position relative to the anchoring ring.

Inventor(s): Paul A. Dudzinski, Kenneth W. Cornett

CPC Classification: E21B33/1293 (Packers; Plugs (used for cementing , ))

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