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Control of well tools utilizing downhole pumps

  • US 8,453,723 B2
  • Filed: 06/02/2010
  • Issued: 06/04/2013
  • Est. Priority Date: 09/09/2008
  • Status: Active Grant
First Claim
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1. A system for selectively actuating from a remote location multiple downhole well tools in a well, the system comprising:

  • multiple electrical conductors in the well, each well tool being connected to a different set of two electrical conductors extending to the remote location; and

    multiple control devices that control a direction of actuation of each well tool in response to a voltage potential applied across each respective set of conductors, each of the control devices including at least one downhole pump which applies a pressure differential to an actuator of a respective one of the well tools.

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