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Application of Optical Fiber Sensing for Geophysical Exploration in Geothermal Fields Using High-temperature and Deep Geothermal Boreholes

Junzo Kasahara, Yoko Hasada, Hitoshi Mikada, and Hiroshi Ohnuma

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Abstract

Using optical fiber in geothermal boreholes, we conducted DTS and DAS measurements. We obtained temperature profiles in the borehole and seismic velocity and seismic reflection images in the geothermal fields.

© 2023 The Author(s)

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