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:
Sep. 28, 2010
Filed:
Jan. 28, 2008
Charles Flaum, Beijing, CN;
Robert L. Kleinberg, Cambridge, MA (US);
Christian Straley, Ridgefield, CT (US);
Robert Badry, Calgary, CA;
Austin Boyd, Ridgefield, CT (US);
Olivier Faivre, Paris, FR;
Shawn Taylor, Edmonton, CA;
Anthony R. H. Goodwin, Sugar Land, TX (US);
Charles Flaum, Beijing, CN;
Robert L. Kleinberg, Cambridge, MA (US);
Christian Straley, Ridgefield, CT (US);
Robert Badry, Calgary, CA;
Austin Boyd, Ridgefield, CT (US);
Olivier Faivre, Paris, FR;
Shawn Taylor, Edmonton, CA;
Anthony R. H. Goodwin, Sugar Land, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Methods and apparatus for the characterization of formation fluids are disclosed. A downhole tool disposed in a borehole penetrating a subterranean formation obtains a NMR measurement, effects a change in a characteristic of the formation fluid, and obtains another NMR measurement subsequent to the change. Alternatively, the downhole tool effects a radial gradient of a characteristic of the formation and obtains NMR measurements at two or more selected radial distances from the wellbore wall. A parameter representative of the subterranean formation or the formation fluid is further determined from the NMR measurements.