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Filter for subterranean wells

  • US 6,352,111 B1
  • Filed: 01/11/2000
  • Issued: 03/05/2002
  • Est. Priority Date: 01/11/2000
  • Status: Expired due to Term
First Claim
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1. A filter for use in a well, the filter comprising:

  • an inner member having a plurality of perforations therethrough;

    at least one filter membrane disposed around the inner member, the filter membrane comprising a non-woven material;

    a braided layer of material surrounding the at least one filter membrane and the inner member; and

    an outer member having a plurality of perforations and disposed around the braided layer.

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