A downhole modulator apparatus

A downhole modulator apparatus

  • CN 101,737,036 A
  • Filed: 11/19/2009
  • Published: 06/16/2010
  • Est. Priority Date: 11/19/2008
  • Status: Active Application
First Claim
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1. underground equipment that in the well of fluid is housed, uses, described equipment comprises:

  • Vertical tool body;

    A plurality of extensible arms (6), it is installed in and is used on the described tool body opening in the described well that fluid is housed and closed;

    Flexible valve lining (5), it is attached to, and described a plurality of extensible arms (6) are gone up and can come between " loaded " position and unloaded position mobile by the motion of described extensible arm (6), wherein, in described unloaded position, described valve liner (5) is arranged to the fluid stream that comes from described well in order to accommodate, and the pressure of the described fluid in the described valve liner (5) at least a portion of causing described valve liner (5) seals against the wall portion of described well.

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