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Method and apparatus for autonomous downhole fluid selection with pathway dependent resistance system

  • US 9,133,685 B2
  • Filed: 01/16/2012
  • Issued: 09/15/2015
  • Est. Priority Date: 02/04/2010
  • Status: Active Grant
First Claim
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1. A device, comprising:

  • an inlet;

    an outlet chamber;

    a first passage in fluid communication with the inlet, terminating at the outlet chamber and having a first resistance to fluid flow of a viscosity;

    a second passage in fluid communication with the inlet, terminating at the outlet chamber and having a second, different resistance to the fluid flow of the viscosity, the first and second passages oriented along different trajectories at the outlet chamber to form a combined flow in the outlet chamber and cause fluid flow from the first passage to influence which of a plurality of trajectories the resulting combined flow tends to flow; and

    a third passage in fluid communication with the inlet, terminating at the outlet chamber and having a third resistance to the fluid flow of the viscosity different from both of the first and second resistances to the fluid flow of the viscosity, the third passage oriented along a different trajectory at the outlet chamber than the first and second passages and fluid flow.

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