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:
Dec. 29, 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);
Carène 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);
Carène 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 method and system includes generating a first coded acoustic signal including pulses each having a modulated signal at a central frequency; and a second coded acoustic signal each pulse of which includes a modulated signal a central frequency of which is a fraction d of the central frequency of the modulated signal for the corresponding pulse in the first plurality of pulses. A receiver detects a third signal generated by a non-linear mixing process in the mixing zone and the signal is processed to extract the third signal to obtain an emulated micro-seismic event signal occurring at the mixing zone; and to characterize properties of the medium or creating a 3D image of the properties of the medium, or both, based on the emulated micro-seismic event signal.