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Interactive and/or secure activation of a tool

  • US 7,383,882 B2
  • Filed: 02/15/2002
  • Issued: 06/10/2008
  • Est. Priority Date: 10/27/1998
  • Status: Expired due to Term
First Claim
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1. A method of controlling activation of a well tool located downhole in a well, comprising:

  • checking, at a surface unit located at an earth surface, an authorization code of a user to verify that the user has access to activate the well tool;

    receiving, at the surface unit, data pertaining to a downhole environment around the well tool that is located downhole in the well; and

    the surface unit enabling activation of the well tool in response to the authorization code and the data indicating that the downhole environment around the well tool meets predetermined one or more criteria for activation of the well tool, andthe surface unit disabling activation of the well tool in response to the data indicating that the downhole environment does not meet the predetermined one or more criteria.

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