The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2007
Filed:
Aug. 31, 2004
Christopher S. Del Campo, Houston, TX (US);
Raymond V. Nold, Iii, Beasley, TX (US);
Noriyuki Matsumoto, Sugar Land, TX (US);
Mark Milkovisch, Cypress, TX (US);
Hisayo Tauchi, Sugar Land, TX (US);
Jonathan W. Brown, Sugar Land, TX (US);
Ricardo Vasques, Sugar Land, TX (US);
Kenneth L. Havlinek, Houston, TX (US);
Christopher S. Del Campo, Houston, TX (US);
Raymond V. Nold, III, Beasley, TX (US);
Noriyuki Matsumoto, Sugar Land, TX (US);
Mark Milkovisch, Cypress, TX (US);
Hisayo Tauchi, Sugar Land, TX (US);
Jonathan W. Brown, Sugar Land, TX (US);
Ricardo Vasques, Sugar Land, TX (US);
Kenneth L. Havlinek, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
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. Fluid may be selectively pumped through the flowlines to reduce the contamination in the evaluation flowline.