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:
Aug. 11, 2020
Filed:
Sep. 01, 2017
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Richard Ferguson, Shibuya-ku, JP;
Magdy Samir Osman, Doha, QA;
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/08 (2006.01); C09K 8/58 (2006.01); E21B 43/16 (2006.01); E21B 49/10 (2006.01); E21B 47/00 (2012.01);
U.S. Cl.
CPC ...
E21B 49/087 (2013.01); C09K 8/58 (2013.01); E21B 43/16 (2013.01); E21B 49/10 (2013.01); E21B 47/00 (2013.01); E21B 49/088 (2013.01); E21B 2049/085 (2013.01);
Abstract
A method of evaluating a fluid from a subterranean formation drawn into a downhole tool positioned in a wellbore penetrating the subterranean formation is provided. This method involves drawing fluid from a formation into a flowline, measuring at least one property of the fluid in the flowline and detecting stabilization of the property or properties of the fluid in the flowline. An electrochemical sensor for measuring contents of a fluid or gas at high pressure and/or high temperature may be used.