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- W4385606670 abstract "How to transfer a large amount of data from underground to surface is critical, electromagnetic wave is a convenient and low-cost wireless transmission method. However, to reduce signal attenuation in the formation, the frequency of the signal is usually very low, which makes it difficult to meet the growing needs of underground communication. The energy propagation of surface electromagnetic waves (SEW)can take place strictly in the medium in which they propagate, and is very strictly confined to a thin area on either side of the interface, so the attenuation is relatively low. The frequency of SEW usually much higher than conventional radio communication frequency and have very high data transmission rates. Additionally, SEW does not depend on the drill pipe and ground to form a return path of the signal, which make it more reliable. SEW provides a new idea for wireless communication of subsurface logging while drilling. Based on Maxwell's equations, this paper studies the basic theory of surface electromagnetic wave and deduces the necessary conditions for generating surface electromagnetic wave. Then an underground surface electromagnetic wave transmission system model is established, the propagation characteristics of surface electromagnetic wave and traditional electromagnetic wave are compared by using the electric field integral equation method based on adaptive cross approximate inversion, as well as the influence of stratum factors on surface electromagnetic wave propagation. The results show that the propagation direction of ground electromagnetic wave is wavelike, and the signal intensity and attenuation rate are better than that of wireless radiation communication. The propagation distance decreases with the increase of the tangent of formation conductivity and dielectric loss, which provides a reference for the application of electromagnetic wave on underground surface." @default.
- W4385606670 created "2023-08-06" @default.
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- W4385606670 date "2023-01-01" @default.
- W4385606670 modified "2023-09-24" @default.
- W4385606670 title "Study on Surface Electromagnetic Wave Transmission Properties Based on Logging While Drilling" @default.
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- W4385606670 doi "https://doi.org/10.1007/978-981-99-1964-2_586" @default.
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