Impeller-type under-pit sand control screen pipe

Impeller-type under-pit sand control screen pipe

  • CN 202,832,426 U
  • Filed: 10/23/2012
  • Issued: 03/27/2013
  • Est. Priority Date: 10/23/2012
  • Status: Active Grant
First Claim
Patent Images

1. vane type well sandscreen, it comprises tube chamber, at the tube chamber middle part some rolling rollers is installed, and it is characterized in that corresponding impeller is installed at described rolling roller top.

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