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Flow control in subterranean wells

  • US 9,551,204 B2
  • Filed: 12/11/2015
  • Issued: 01/24/2017
  • Est. Priority Date: 04/28/2015
  • Status: Active Grant
First Claim
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1. A method of controlling flow in a subterranean well, the method comprising:

  • introducing a device into the well, the device being conveyed by flow in the well, the device comprising a plurality of fibers extending outwardly from a body; and

    engaging and preventing fluid flow outward through an opening formed through a wall of a casing, the body comprising a knot which is larger than the opening formed through the wall of the casing, whereby the knot engages but does not pass through the opening.

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