Device and method for generating a beam of acoustic energy from a borehole, and applications thereof
Abstract
In some aspects of the invention, a method of generating a beam of acoustic energy in a borehole is disclosed. The method includes generating a first acoustic wave at a first frequency; generating a second acoustic wave at a second frequency different than the first frequency, wherein the first acoustic wave and second acoustic wave are generated by at least one transducer carried by a tool located within the borehole; transmitting the first and the second acoustic waves into an acoustically non-linear medium, wherein the composition of the non-linear medium produces a collimated beam by a non-linear mixing of the first and second acoustic waves, wherein the collimated beam has a frequency based upon a difference between the first frequency and the second frequency; and transmitting the collimated beam through a diverging acoustic lens to compensate for a refractive effect caused by the curvature of the borehole.
- Inventors:
- Issue Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1107570
- Patent Number(s):
- 8547790
- Application Number:
- 12/793,414
- 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
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Vu, Cung Khac, Sinha, Dipen N, Pantea, Cristian, Nihei, Kurt T, 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., 2013.
Web.
Vu, Cung Khac, Sinha, Dipen N, Pantea, Cristian, Nihei, Kurt T, 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 T, 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/1107570.
@article{osti_1107570,
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 T and Schmitt, Denis P and Skelt, Christopher},
abstractNote = {In some aspects of the invention, a method of generating a beam of acoustic energy in a borehole is disclosed. The method includes generating a first acoustic wave at a first frequency; generating a second acoustic wave at a second frequency different than the first frequency, wherein the first acoustic wave and second acoustic wave are generated by at least one transducer carried by a tool located within the borehole; transmitting the first and the second acoustic waves into an acoustically non-linear medium, wherein the composition of the non-linear medium produces a collimated beam by a non-linear mixing of the first and second acoustic waves, wherein the collimated beam has a frequency based upon a difference between the first frequency and the second frequency; and transmitting the collimated beam through a diverging acoustic lens to compensate for a refractive effect caused by the curvature of the borehole.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {10}
}