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:
Jun. 11, 2019
Filed:
Apr. 05, 2017
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Timothy Andrew John Hopper, Subiaco, AU;
David G Cory, Branchton, CA;
Julius Kusuma, Arlington, MA (US);
Yi-Qiao Song, Newton Center, MA (US);
Martin D. Hurlimann, Newton, MA (US);
Martin E. Poitzsch, Houston, TX (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/00 (2006.01); G01V 3/32 (2006.01); G01N 24/08 (2006.01); G01R 33/36 (2006.01);
U.S. Cl.
CPC ...
G01V 3/32 (2013.01); G01N 24/081 (2013.01); G01R 33/3607 (2013.01); G01R 33/3621 (2013.01);
Abstract
Methods and systems are provided for tools having non-resonant circuits for analyzing a formation and/or a sample. For example, nuclear magnetic resonance and resistivity tools can make use of a non-resonant excitation coil and/or a detection coil. These coils can achieve desired frequencies by the use of switches, thereby removing the requirement of tuning circuits that are typical in conventional tools.