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:
Jul. 03, 2018
Filed:
Jan. 11, 2013
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Andrew E. Pomerantz, Lexington, MA (US);
Zied Ben Hamad, Paris, FR;
Albert Ballard Andrews, Wilton, CT (US);
Youxiang Zuo, Burnaby, CA;
Oliver Clinton Mullins, Houston, TX (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/00 (2006.01); E21B 47/10 (2012.01); E21B 49/10 (2006.01); E21B 49/08 (2006.01);
U.S. Cl.
CPC ...
E21B 49/00 (2013.01); E21B 47/102 (2013.01); E21B 49/081 (2013.01); E21B 49/10 (2013.01);
Abstract
A downhole tool is conveyed within a borehole extending into a subterranean formation. Fluid is drawn from the subterranean formation into the downhole tool, wherein the fluid comprises heavy oil. Fluorescence intensity of the drawn fluid is measured via a sensor of the downhole tool, and asphaltene content of the drawn fluid is estimated based on the measured fluorescence intensity.