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Expandable Packer with Expansion Induced Axially Movable Support Feature

  • US 20120217004A1
  • Filed: 02/24/2011
  • Published: 08/30/2012
  • Est. Priority Date: 02/24/2011
  • Status: Active Grant
First Claim
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1. A packer for subterranean use in a borehole defined by a wall, comprising:

  • a tubular housing;

    a sealing element surrounding said housing;

    at least one sealing boost force device on said housing acting on said sealing element between said sealing element and said housing to urge said sealing element toward the wall;

    said housing further comprises a support member that moves toward said sealing boost force device as a result of longitudinal shrinkage of said housing from radial expansion thereof.

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