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:
Jan. 21, 2020
Filed:
Sep. 08, 2016
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventor:
Alain Nguyen-Thuyet, Houston, TX (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/06 (2006.01); E21B 47/06 (2012.01); E21B 49/08 (2006.01); E21B 49/10 (2006.01); G05B 19/042 (2006.01); E21B 47/12 (2012.01);
U.S. Cl.
CPC ...
E21B 49/081 (2013.01); E21B 34/06 (2013.01); E21B 47/06 (2013.01); E21B 49/088 (2013.01); E21B 49/10 (2013.01); G05B 19/042 (2013.01); E21B 47/12 (2013.01); E21B 2049/085 (2013.01); G05B 2219/37399 (2013.01); G05B 2219/45129 (2013.01);
Abstract
Apparatus and methods for assessing contamination of formation fluid. A downhole sampling tool is operated to draw fluid from a subterranean formation into a chamber of the downhole sampling tool. The downhole sampling tool is then operated to discharge the fluid from the chamber while monitoring pressure of the fluid and volume of the chamber. Contamination of the discharged fluid is assessed based on the monitored fluid pressure and the monitored chamber volume.