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:
Sep. 16, 2008
Filed:
Sep. 29, 2006
Applicants:
Songhua Chen, Katy, TX (US);
Carl M. Edwards, Katy, TX (US);
Thomas Kruspe, Wienhausen, DE;
Martin Blanz, Celle, DE;
Holger F. Thern, Hannover, DE;
David R. Beard, Houston, TX (US);
Inventors:
Songhua Chen, Katy, TX (US);
Carl M. Edwards, Katy, TX (US);
Thomas Kruspe, Wienhausen, DE;
Martin Blanz, Celle, DE;
Holger F. Thern, Hannover, DE;
David R. Beard, Houston, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The quality factor of a NMR-antenna depends upon mud conductivity, formation resistivity and the borehole size. The Q of the antenna is measured. From measurement of one of formation conductivity or borehole size, the other can be determined.