| Summary: | To accurately reflect the physical properties of the reservoir, it is necessary to use a variety of techniques to evaluate the reservoir, due to the complexity of the reservoir. In this paper, the oil is dripped into the rock to simulate the reservoir, and the transmission properties of the terahertz (THz) wave in the reservoir were studied. The extinction coefficient of rock was a key parameter for comprehending the properties of mineral and organic matter. The higher the frequency was, the larger the extinction coefficient was. The extinction coefficient was composed of the absorption and the scattering, which the latter played a more important role. The results revealed the transmission properties of the THz wave in rock, which can help in improving the efficiency of terahertz time domain spectroscopy (THz-TDS) and enriching the method of oil field exploration.
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