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. 22, 2022
Filed:
May. 03, 2017
Applicant:
M-i L.l.c., Houston, TX (US);
Inventors:
Brandi Katherine Price Hoelscher, Houston, TX (US);
Cara Bovet, Houston, TX (US);
Albert Okhrimenko, Houston, TX (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 49/00 (2006.01); E21B 21/00 (2006.01); E21B 7/00 (2006.01); E21B 33/138 (2006.01); E21B 47/00 (2012.01); E21B 47/12 (2012.01); E21B 47/01 (2012.01);
U.S. Cl.
CPC ...
E21B 49/00 (2013.01); E21B 7/00 (2013.01); E21B 21/003 (2013.01); E21B 33/138 (2013.01); E21B 47/00 (2013.01); E21B 47/01 (2013.01); E21B 47/12 (2013.01);
Abstract
A method of electrically logging a section of a wellbore includes circulating an oil-based wellbore fluid comprising a conductive carbon material therein, the oil-based wellbore fluid having a conductivity of at most 0.01 S/m when measured at 20 kHz, within the wellbore while drilling the wellbore with a drill bit on a drill string; applying electrical current from a logging tool on the drill string above the drill bit; and collecting an electrical log of the portion of the wellbore that has had electrical current applied thereto.