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DOWNHOLE FORMATION TESTER

  • US 20110114310A1
  • Filed: 11/16/2009
  • Published: 05/19/2011
  • Est. Priority Date: 11/16/2009
  • Status: Active Grant
First Claim
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1. A system for pumping fluid at least partially through a downhole tool disposed in a wellbore, comprising:

  • a displacement unit configured to pump the fluid;

    a first flowline hydraulically connected to the displacement unit through a valve network for selectively communicating the fluid to or from the displacement unit;

    a second flowline hydraulically connected to the displacement unit through the valve network for selectively communicating the fluid to or from the displacement unit;

    a first chamber pressure gauge hydraulically coupled with a first chamber of the displacement unit; and

    a second chamber pressure gauge hydraulically coupled with a second chamber of the displacement unit.

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