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Water absorbing or dissolving materials used as an in-flow control device and method of use

  • US 7,913,765 B2
  • Filed: 10/19/2007
  • Issued: 03/29/2011
  • Est. Priority Date: 10/19/2007
  • Status: Active Grant
First Claim
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1. An apparatus for controlling a flow of a formation fluid into a wellbore tubular in a wellbore, comprising:

  • a flow restriction member positioned along the wellbore tubular, the flow restriction member being configured to transition from a first effective density to a second effective density in response to a change in composition of the flowing formation fluid, wherein the effective density change causes movement of the flow restriction member due to gravity.

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