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Hydrostatically actuated packer

  • US 5,810,082 A
  • Filed: 08/30/1996
  • Issued: 09/22/1998
  • Est. Priority Date: 08/30/1996
  • Status: Expired due to Fees
First Claim
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1. A packer, comprising:

  • a mandrel having an uphole and a downhole end;

    a sealing element on said mandrel movable between a retracted and an expanded position;

    a gripping mechanism on said mandrel;

    a hydrostatically operated actuating mechanism comprising an actuating piston exposed to hydrostatic pressure on one side and a lower pressure on an opposing side, said actuating piston selectively releasable to allow said hydrostatic pressure to apply a force to said sealing element to move it to its expanded position, said actuating piston mounted between said sealing element and said uphole end of said mandrel such that a leak path between said sealing element and said mandrel is eliminated.

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