Experimental study of the influence of saturation on the resistivity response of sandstone
Studying the changes in electrical resistivity of sandstones under various frequencies and saturation levels is important for addressing many geological problems through electrical prospecting. In this study, we investigated the effect of different frequencies (500 Hz–200 kHz) and saturation levels...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-01-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2024.1301184/full |
| _version_ | 1827381189628919808 |
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| author | Xiaolang He Xiaolang He Xinchao Zheng Zhiguo Pu Wei Qin Dongwei Duan Peng Xie Qi Zhang |
| author_facet | Xiaolang He Xiaolang He Xinchao Zheng Zhiguo Pu Wei Qin Dongwei Duan Peng Xie Qi Zhang |
| author_sort | Xiaolang He |
| collection | DOAJ |
| description | Studying the changes in electrical resistivity of sandstones under various frequencies and saturation levels is important for addressing many geological problems through electrical prospecting. In this study, we investigated the effect of different frequencies (500 Hz–200 kHz) and saturation levels (0%–100%) on the resistivity of sandstone in the Ordos region. Our research indicates that when the saturation level is low (<40%), the resistivity of the sandstone decreases rapidly. With the increase of saturation level, pore water gradually becomes another major factor affecting resistivity in addition to induced polarization effect. When the saturation level is high (>80%), the resistivity tends to stabilize. Additionally, the resistivity of sandstone decreases with the increase of saturation. Furthermore, with an increase in frequency, the rate of reduction in resistivity gradually slows down, and the resistivity of sandstone decreases under the influence of saturation. This study provides a valuable reference for the practical application of sandstone resistivity in geological prospecting. |
| first_indexed | 2024-03-08T13:50:37Z |
| format | Article |
| id | doaj.art-c690b2491b3543499f2b909a20d99971 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-03-08T13:50:37Z |
| publishDate | 2024-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-c690b2491b3543499f2b909a20d999712024-01-16T04:11:16ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632024-01-011210.3389/feart.2024.13011841301184Experimental study of the influence of saturation on the resistivity response of sandstoneXiaolang He0Xiaolang He1Xinchao Zheng2Zhiguo Pu3Wei Qin4Dongwei Duan5Peng Xie6Qi Zhang7China Coal Energy Research Institute Co., Ltd., Xi’an, Shaanxi, ChinaCollege of Geology and Environment, Xi’an University of Science and Technology, Xi’an, Shaanxi, ChinaCollege of Geology and Environment, Xi’an University of Science and Technology, Xi’an, Shaanxi, ChinaChina Coal Energy Research Institute Co., Ltd., Xi’an, Shaanxi, ChinaChina Coal Energy Research Institute Co., Ltd., Xi’an, Shaanxi, ChinaChina Coal Energy Research Institute Co., Ltd., Xi’an, Shaanxi, ChinaChina Coal Energy Research Institute Co., Ltd., Xi’an, Shaanxi, ChinaChina Coal Energy Research Institute Co., Ltd., Xi’an, Shaanxi, ChinaStudying the changes in electrical resistivity of sandstones under various frequencies and saturation levels is important for addressing many geological problems through electrical prospecting. In this study, we investigated the effect of different frequencies (500 Hz–200 kHz) and saturation levels (0%–100%) on the resistivity of sandstone in the Ordos region. Our research indicates that when the saturation level is low (<40%), the resistivity of the sandstone decreases rapidly. With the increase of saturation level, pore water gradually becomes another major factor affecting resistivity in addition to induced polarization effect. When the saturation level is high (>80%), the resistivity tends to stabilize. Additionally, the resistivity of sandstone decreases with the increase of saturation. Furthermore, with an increase in frequency, the rate of reduction in resistivity gradually slows down, and the resistivity of sandstone decreases under the influence of saturation. This study provides a valuable reference for the practical application of sandstone resistivity in geological prospecting.https://www.frontiersin.org/articles/10.3389/feart.2024.1301184/fullresistivitysaturationfrequencyinduced polarization effectsandstone |
| spellingShingle | Xiaolang He Xiaolang He Xinchao Zheng Zhiguo Pu Wei Qin Dongwei Duan Peng Xie Qi Zhang Experimental study of the influence of saturation on the resistivity response of sandstone Frontiers in Earth Science resistivity saturation frequency induced polarization effect sandstone |
| title | Experimental study of the influence of saturation on the resistivity response of sandstone |
| title_full | Experimental study of the influence of saturation on the resistivity response of sandstone |
| title_fullStr | Experimental study of the influence of saturation on the resistivity response of sandstone |
| title_full_unstemmed | Experimental study of the influence of saturation on the resistivity response of sandstone |
| title_short | Experimental study of the influence of saturation on the resistivity response of sandstone |
| title_sort | experimental study of the influence of saturation on the resistivity response of sandstone |
| topic | resistivity saturation frequency induced polarization effect sandstone |
| url | https://www.frontiersin.org/articles/10.3389/feart.2024.1301184/full |
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