Device and method for generating a beam of acoustic energy from a borehole, and applications thereof
Abstract
In some aspects of the invention, a device, positioned within a well bore, configured to generate and direct an acoustic beam into a rock formation around a borehole is disclosed. The device comprises a source configured to generate a first signal at a first frequency and a second signal at a second frequency; a transducer configured to receive the generated first and the second signals and produce acoustic waves at the first frequency and the second frequency; and a non-linear material, coupled to the transducer, configured to generate a collimated beam with a frequency equal to the difference between the first frequency and the second frequency by a non-linear mixing process, wherein the non-linear material includes one or more of a mixture of liquids, a solid, a granular material, embedded microspheres, or an emulsion.
- Inventors:
-
- Houston, TX
- Los Alamos, NM
- Oakland, CA
- Katy, TX
- Issue Date:
- Research Org.:
- Chevron U.S.A. Inc. (San Ramon, CA); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1014731
- Patent Number(s):
- 7839718
- Application Number:
- US Patent Application 12/166,842
- Assignee:
- Chevron U.S.A. Inc. (San Ramon, CA);Los Alamos National Security, LLC (Los Alamos, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
- DOE Contract Number:
- AC52-06NA25396
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Vu, Cung Khac, Sinha, Dipen N, Pantea, Cristian, Nihei, Kurt, Schmitt, Denis P, and Skelt, Christopher. Device and method for generating a beam of acoustic energy from a borehole, and applications thereof. United States: N. p., 2010.
Web.
Vu, Cung Khac, Sinha, Dipen N, Pantea, Cristian, Nihei, Kurt, Schmitt, Denis P, & Skelt, Christopher. Device and method for generating a beam of acoustic energy from a borehole, and applications thereof. United States.
Vu, Cung Khac, Sinha, Dipen N, Pantea, Cristian, Nihei, Kurt, Schmitt, Denis P, and Skelt, Christopher. Tue .
"Device and method for generating a beam of acoustic energy from a borehole, and applications thereof". United States. https://www.osti.gov/servlets/purl/1014731.
@article{osti_1014731,
title = {Device and method for generating a beam of acoustic energy from a borehole, and applications thereof},
author = {Vu, Cung Khac and Sinha, Dipen N and Pantea, Cristian and Nihei, Kurt and Schmitt, Denis P and Skelt, Christopher},
abstractNote = {In some aspects of the invention, a device, positioned within a well bore, configured to generate and direct an acoustic beam into a rock formation around a borehole is disclosed. The device comprises a source configured to generate a first signal at a first frequency and a second signal at a second frequency; a transducer configured to receive the generated first and the second signals and produce acoustic waves at the first frequency and the second frequency; and a non-linear material, coupled to the transducer, configured to generate a collimated beam with a frequency equal to the difference between the first frequency and the second frequency by a non-linear mixing process, wherein the non-linear material includes one or more of a mixture of liquids, a solid, a granular material, embedded microspheres, or an emulsion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {11}
}
Works referenced in this record:
Parametric Acoustic Array
journal, April 1963
- Westervelt, Peter J.
- The Journal of the Acoustical Society of America, Vol. 35, Issue 4