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:
Jan. 27, 2015
Filed:
Nov. 09, 2011
Cung Khac VU, Houston, TX (US);
Kurt Nihei, Oakland, CA (US);
Paul A. Johnson, Santa Fe, NM (US);
Robert Guyer, Reno, NV (US);
James A. Ten Cate, Los Alamos, NM (US);
Pierre-yves Le Bas, Los Alamos, NM (US);
Caréne S. Larmat, Los Alamos, NM (US);
Cung Khac Vu, Houston, TX (US);
Kurt Nihei, Oakland, CA (US);
Paul A. Johnson, Santa Fe, NM (US);
Robert Guyer, Reno, NV (US);
James A. Ten Cate, Los Alamos, NM (US);
Pierre-Yves Le Bas, Los Alamos, NM (US);
Caréne S. Larmat, Los Alamos, NM (US);
Chevron U.S.A Inc., San Ramon, CA (US);
Los Alamos National Security, LLC, Los Alamos, NM (US);
Abstract
A system and a method includes generating a first signal at a first frequency; and a second signal at a second frequency. Respective sources are positioned within the borehole and controllable such that the signals intersect in an intersection volume outside the borehole. A receiver detects a difference signal returning to the borehole generated by a non-linear mixing process within the intersection volume, and records the detected signal and stores the detected signal in a storage device and records measurement parameters including a position of the first acoustic source, a position of the second acoustic source, a position of the receiver, elevation angle and azimuth angle of the first acoustic signal and elevation angle and azimuth angle of the second acoustic signal.