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| | Abstract | | Taiwan Power Research Institute plans to perform a field experiment at a CO2 geological storage site near a coastal area in Taichung-city. An exploration depth of the CSMT (Controlled Source Magneto-Telluric) method has been previously limited to one thousand meter at the most of the sites in Japan, because the distance between a current source and a survey site is not able to be separated enough by the influence of an artificial noise. In this study, a field test has been conducted at the site using the great depth CSMT method. We used an electromagnetic exploration instrument with high frequency spectrum resolution by using GPS synchronization. As a result, we obtained better quality data in comparison with the data evaluated by a conventional stacking process, even if there are many noises in the site. Furthermore, the resistivity profile by the 2D inversion matched well the resistivity by the core samples and the electrical logging data from 2000 to 3000 m in depth at the site. |
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