Optimal type of focusing borehole radiators

Author: Kas’yanov, D.

Source: Acoustical Physics, 1 April 2007, vol. 53, no. 2, pp. 235-244(10)

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Abstract:

A promising type of borehole acoustic radiators intended for both affecting geotechnological processes and investigating the borehole environment is considered. The basic difference of the radiators under consideration from the existing ones is the possibility of focusing the acoustic field into a preset region of the borehole environment. Elastic fields produced by focusing borehole radiators in rock are studied. Limiting abilities of focusing borehole systems are investigated. It is demonstrated that borehole radiators with a variable focal distance can be designed, which provides a real opportunity to control the distribution of elastic fields in the borehole environment. This property may be very important in developing the acoustic technologies for affecting productive reservoirs of geotechnological boreholes.

Keywords: 43.20.Rz; 43.35.Zc; 43.38.Ar

Document Type: Research Article

DOI: http://dx.doi.org/10.1134/S1063771007020182

Affiliations: Email: kasd@nirfi.sci-nnov.ru

Publication date: April 1, 2007

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