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Remotely operated and multi-functional down-hole control tools

  • US 10,563,481 B2
  • Filed: 10/02/2015
  • Issued: 02/18/2020
  • Est. Priority Date: 10/02/2015
  • Status: Active Grant
First Claim
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1. A system for controlling flow in a wellbore, comprising:

  • a tubular string comprising an interior passage and a tubing port in fluid communication with the interior passage of the tubular string;

    a washpipe comprising an interior passage fluidly coupled to the interior passage of the tubular string through the tubing port, the washpipe further comprising a return port in fluid communication with the interior passage of the washpipe;

    a return passage fluidly coupled the interior passage of the washpipe through the return port; and

    a multi-position valve comprising a closure member selectively movable among at least two positions including;

    a fully open position wherein fluid flow is permitted through both the tubular port and the return port; and

    a first closed position wherein fluid flow is obstructed through the tubing port and permitted through the return port.

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