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Flow restriction devices

  • US 8,646,535 B2
  • Filed: 08/07/2012
  • Issued: 02/11/2014
  • Est. Priority Date: 10/12/2007
  • Status: Active Grant
First Claim
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1. An apparatus for controlling a flow of a fluid into a wellbore tubular, the apparatus comprising:

  • a flow control device for conveying the flowing fluid into the wellbore tubular, the flow control device having a plurality of parallel flow paths conveying fluid across the flow control device, wherein the plurality of parallel flow paths include at least one channel across the flow control device, and wherein each of the plurality of parallel flow paths have a plurality of flow control elements to;

    (i) control a flow characteristic based on a viscosity and a density of the fluid, and(ii) increase resistance to flow as a concentration of a specified fluid increases in the fluid.

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