Patents Represented by Attorney Matthias Atorell
  • Patent number: 7178591
    Abstract: Techniques for reduced contamination formation evaluation are provided. The techniques relate to drawing fluid into a downhole tool positionable in a wellbore penetrating a subterranean formation having a virgin fluid and a contaminated fluid therein. Fluid is drawn into at least two inlets for receiving the fluids from the formation. At least one evaluation flowline is fluidly connected to at least one of the inlets for passage of the virgin fluid into the downhole tool. At least one cleanup flowline is fluidly connected to the inlets for passage of the contaminated fluid into the downhole tool. At least one fluid circuit is fluidly connected to the evaluation flowline and/or cleanup flowlines for selectively drawing fluid therein. At least one fluid connector is provided for selectively establishing a fluid connection between the flowlines. At least one sensor is provided for measuring downhole parameters in one of the flowlines.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: February 20, 2007
    Assignee: Schlumberger Technology Corporation
    Inventors: Christopher S. Del Campo, Raymond V. Nold, III, Noriyuki Matsumoto, Mark Milkovisch, Hisayo Tauchi, Jonathan W. Brown, Ricardo Vasques, Kenneth L. Havlinek