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. 05, 2013
Filed:
Sep. 29, 2010
Paul A. Johnson, Santa Fe, NM (US);
James A. Tencate, Los Alamos, NM (US);
Pierre-yves Le Bas, Los Alamos, NM (US);
Robert Guyer, Reno, NV (US);
Cung Khac VU, Houston, TX (US);
Christopher Skelt, Houston, TX (US);
Paul A. Johnson, Santa Fe, NM (US);
James A. Tencate, Los Alamos, NM (US);
Pierre-Yves Le Bas, Los Alamos, NM (US);
Robert Guyer, Reno, NV (US);
Cung Khac Vu, Houston, TX (US);
Christopher Skelt, Houston, TX (US);
Chevron U.S.A. Inc., Sam Ramon, CA (US);
Abstract
In some aspects of the disclosure, a method and an apparatus is disclosed for investigating material surrounding the borehole. The method includes generating a first low frequency acoustic wave within the borehole, wherein the first low frequency acoustic wave induces a linear and a nonlinear response in one or more features in the material that are substantially perpendicular to a radius of the borehole; directing a first sequence of high frequency pulses in a direction perpendicularly with respect to the longitudinal axis of the borehole into the material contemporaneously with the first acoustic wave; and receiving one or more second high frequency pulses at one or more receivers positionable in the borehole produced by an interaction between the first sequence of high frequency pulses and the one or more features undergoing linear and nonlinear elastic distortion due to the first low frequency acoustic wave to investigate the material surrounding the borehole