Device and method for generating a beam of acoustic energy from a borehole, and applications thereof

Vu, Cung Khac; Sinha, Dipen N; Pantea, Cristian; Nihei, Kurt T; Schmitt, Denis P; Skelt, Christopher

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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:: Vu, Cung Khac; Sinha, Dipen N; Pantea, Cristian; Nihei, Kurt T; Schmitt, Denis P; Skelt, Christopher

Issue Date:: 2013-10-01

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

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G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
G01V1/006 - {generating single signals by using more than one generator, e.g. beam steering or focussing arrays
G01V1/00 - Seismology
G01V1/46 - Data acquisition

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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.

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                    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.

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                    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.

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@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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Works referenced in this record:

Nonlinear tube waves in permeable formations: Difference frequency generation
journal, July 2004

Tserkovnyak, Yaroslav; Johnson, David Linton
The Journal of the Acoustical Society of America, Vol. 116, Issue 1
https://doi.org/10.1121/1.1753293

Nonlinear generation of elastic waves in crystalline rock
journal, January 1987

Johnson, Paul A.; Shankland, Thomas J.; O'Connell, Richard J.
Journal of Geophysical Research, Vol. 92, Issue B5
https://doi.org/10.1029/JB092iB05p03597

Parametric Acoustic Array
journal, April 1963

Westervelt, Peter J.
The Journal of the Acoustical Society of America, Vol. 35, Issue 4
https://doi.org/10.1121/1.1918525

Interaction of Elastic Waves in an Isotropic Solid
journal, January 1963

Jones, Gerald Lee; Kobett, Donald R.
The Journal of the Acoustical Society of America, Vol. 35, Issue 1
https://doi.org/10.1121/1.1918405

Nonlinear generation of elastic waves in granite and sandstone: Continuous wave and travel time observations
journal, January 1989

Johnson, Paul A.; Shankland, Thomas J.
Journal of Geophysical Research, Vol. 94, Issue B12
https://doi.org/10.1029/JB094iB12p17729

Ultrasonic Study of Three-Phonon Interactions. II. Experimental Results
journal, November 1964

Rollins, Fred R.; Taylor, Lyle H.; Todd, Paul H.
Physical Review, Vol. 136, Issue 3A
https://doi.org/10.1103/PhysRev.136.A597

Dynamic nonlinear elasticity in geomaterials
journal, July 2001

Ostrovsky, L. A.; Johnson, P. A.
La Rivista del Nuovo Cimento, Vol. 24, Issue 7
https://doi.org/10.1007/BF03548898

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Device and method for generating a beam of acoustic energy from a borehole, and applications thereof

Patent Vu, Cung Khac; Sinha, Dipen N.; Pantea, Cristian; ...

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 themore » « less
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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 themore » « less
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Similar Records

Title: Device and method for generating a beam of acoustic energy from a borehole, and applications thereof

Abstract

Citation Formats

Nonlinear tube waves in permeable formations: Difference frequency generation journal, July 2004

Nonlinear generation of elastic waves in crystalline rock journal, January 1987

Parametric Acoustic Array journal, April 1963

Interaction of Elastic Waves in an Isotropic Solid journal, January 1963

Nonlinear generation of elastic waves in granite and sandstone: Continuous wave and travel time observations journal, January 1989

Ultrasonic Study of Three-Phonon Interactions. II. Experimental Results journal, November 1964

Dynamic nonlinear elasticity in geomaterials journal, July 2001

Nonlinear tube waves in permeable formations: Difference frequency generation
journal, July 2004

Nonlinear generation of elastic waves in crystalline rock
journal, January 1987

Parametric Acoustic Array
journal, April 1963

Interaction of Elastic Waves in an Isotropic Solid
journal, January 1963

Nonlinear generation of elastic waves in granite and sandstone: Continuous wave and travel time observations
journal, January 1989

Ultrasonic Study of Three-Phonon Interactions. II. Experimental Results
journal, November 1964

Dynamic nonlinear elasticity in geomaterials
journal, July 2001