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. 14, 2017
Filed:
May. 27, 2014
Applicant:
Schlumberger Technology Corporation, Sugar land, TX (US);
Inventors:
Benoit Froelich, Marly le Roi, FR;
Andrew J. Hayman, Voisins-le-Bretonneux, FR;
Kenneth K Liang, Stow, MA (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 1/00 (2006.01); G01V 1/30 (2006.01); G01V 1/50 (2006.01); E21B 47/00 (2012.01);
U.S. Cl.
CPC ...
G01V 1/306 (2013.01); E21B 47/0005 (2013.01); G01V 1/50 (2013.01);
Abstract
An acoustic logging tool emits a wideband acoustic pulse toward an inside surface of a borehole casing and an acoustic response is received. The acoustic response is analyzed at one or more higher order harmonics of the thickness mode resonance of the casing to determine the acoustic impedance of the material behind the casing.