ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Shear-horizontal transverse-electric seismoelectric waves in cylindrical double layer porous media |
Wei-Hao Wang(王伟豪), Xiao-Yan Zhu(朱晓焱), Jin-Xia Liu(刘金霞), and Zhi-Wen Cui(崔志文)† |
Department of Acoustics and Microwave Physics, College of Physics, Jilin University, Changchun 130012, China |
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Abstract The shear-horizontal (SH) waves excited by the shear source in a borehole are easy to analyze due to the simple waveform. The borehole-side structures make the formation properties discontinuous. We consider a cylindrical double layer structure and study the borehole shear-horizontal and transverse-electric (SH-TE) seismoelectric waves. We first derive the expressions of the basic field quantities, and simulate the acoustic field and electric field using the real axis integral method. Compared with the wave fields of an infinitely homogeneous porous medium outside the borehole, the cylindrical layered structure makes the multi-mode cylindrical Love waves and their accompanying electric fields excited. Next, in order to study the interface response law of the inducing electric fields, we use the secant integral method to calculate the interface converted electromagnetic waves and analyze the causes of each component. It is found that an interface response occurs each time the SH wave impinges the interface in the layered porous medium. The results show that the SH-TE mode has a potential application for borehole-side interface detection in geophysical logs.
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Received: 20 June 2020
Revised: 09 August 2020
Accepted manuscript online: 27 August 2020
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PACS:
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43.20.+g
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(General linear acoustics)
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91.60.Lj
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(Acoustic properties)
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91.30.f
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Fund: Project supported by the Natural Science Foundation of Jilin Province of China (Grant No. 20180101282JC) and the National Natural Science Foundation of China (Grant Nos. 40974067 and 42074139). |
Corresponding Authors:
†Corresponding author. E-mail: cuizw@jlu.edu.cn
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Cite this article:
Wei-Hao Wang(王伟豪), Xiao-Yan Zhu(朱晓焱), Jin-Xia Liu(刘金霞), and Zhi-Wen Cui(崔志文) Shear-horizontal transverse-electric seismoelectric waves in cylindrical double layer porous media 2021 Chin. Phys. B 30 014301
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