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. 29, 2017
Filed:
Jan. 20, 2015
Applicant:
Schlumberger Technology Corporation, Sugar land, TX (US);
Inventor:
Edward Nichols, Berkeley, CA (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 7/06 (2006.01); G01V 3/28 (2006.01); E21B 47/09 (2012.01); G01V 11/00 (2006.01);
U.S. Cl.
CPC ...
G01B 7/10 (2013.01); E21B 47/0905 (2013.01); G01V 3/28 (2013.01); G01V 11/002 (2013.01);
Abstract
Systems, apparatuses, and methods for measuring material thickness of one or more casings using a permeable core are presented. A magnetic field is generated using a permeable core and transmitted through one or more casings. Moreover, one or more receivers measure changes to the magnetic field.