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:
Mar. 28, 2017
Filed:
Apr. 18, 2013
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Youxiang Zuo, Sugar Land, TX (US);
Adriaan Gisolf, Houston, TX (US);
Anthony Smits, Yokohama, JP;
Oliver C. Mullins, Ridgefield, CT (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/08 (2006.01); G01V 8/10 (2006.01); G01N 33/28 (2006.01);
U.S. Cl.
CPC ...
G01V 8/10 (2013.01); G01N 33/2823 (2013.01); E21B 49/088 (2013.01);
Abstract
A method for monitoring oil based mud filtrate contamination is provided including steps of analytically dividing a fluid stream into two parts, determining a gas/oil ratio for a native fluid determining an apparent gas/oil ratio for the contaminated fluid and determining on a volume fraction, an oil based contamination level based upon the gas/oil ratio for the native fluid and the apparent gas/oil ratio for the contaminated fluid.