Device and method for generating a beam of acoustic energy from a borehole, and applications thereof
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 range and the second frequency, and wherein the non-linear medium has a velocity of sound between 100 m/s and 800 m/s.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- Assignee:
- Chevron U.S.A., Inc. (San Ramon, CA)
- Patent Number(s):
- 8,559,269
- Application Number:
- 12/793,407
- OSTI ID:
- 1176527
- Country of Publication:
- United States
- Language:
- English
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Device and method for generating a beam of acoustic energy from a borehole, and applications thereof
Device and method for generating a beam of acoustic energy from a borehole, and applications thereof