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:
Nov. 06, 2018
Filed:
Oct. 22, 2015
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Martin G. Luling, Paris, FR;
Mohamed Jaidane, Paris, FR;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/28 (2006.01); H01F 38/30 (2006.01);
U.S. Cl.
CPC ...
G01V 3/28 (2013.01); H01F 38/30 (2013.01);
Abstract
A downhole device may include a closed ring of ferromagnetic material mounted on a conductive pipe. The downhole device may also include a first coil spirally wound around the closed ring comprising an electrically conductive flat metallic strip to substantially cover the closed ring.