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Title: 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:
; ; ; ; ;
Publication Date:
Research Org.:
LANL (Los Alamos National Laboratory (LANL), Los Alamos, NM (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1107570
Patent Number(s):
8,547,790
Application Number:
12/793,414
Assignee:
Chevron U.S.A. Inc. (San Ramon, CA); Los Alamos National Security LLC (Los Alamos, NM) LANL
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}
}

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