| 鄂尔多斯盆地陕北盐盆东部盐下马四段富K、Li、Br油田水新发现 |
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| 关键词:Ordos Basin oil and salt exploration lower member fourth member of the Majiagou Formation K-rich, Li-rich, and Br-rich oilfield water |
| 基金项目:国家重点研发计划项目(编号: 2023YFE0104000) |
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| 摘要: |
| Discovery of K-, Li-, and Br-rich Oilfield Water in the Ma4 Member under the Salt Formation in the Eastern Part of the Shanbei Salt Basin, Ordos Basin |
| K and Li are key mineral resources required to ensure China’s agricultural food security and support the development of a new energy industry, allowing China to continue to maintain a high degree of foreign independence. Institute of Mineral Resources, Chinese Academy of Geological Sciences in collaboration with Changqing Oilfield Branch, Petrochina, upon “exploration of both oil and salt”, have made new discoveries of K-, Li-, and Rb-rich oilfield water in the fourth member of the lower member of the Majiagou Formation in the eastern salt basin of northern Shaanxi in the Ordos Basin, including Wells Mitan 6 and Yuyang 1. This water represents a newly discovered Li and K resource stratum in the Ordos Basin. Test results show that the KCl content of the brine in this layer is 1.798%–3.573%, and the LiCl content is 1 460.606–1 915.152 mg/L, both representing industrial grade concentrations; the contents of Rb2O and Br also reach industrial and comprehensive utilization standards. The fourth member of the Majiagou Formation is widely distributed in the basin. The discovery of K-, Li-, and Br-rich oilfield waters indicates good prospects for K and Li resources in the Ordos Basin. |
| FAN Fu,MA Zhanrong,LIU Jianping,ZHANG Yongsheng,BAO Hongping.2025.Discovery of K-, Li-, and Br-rich Oilfield Water in the Ma4 Member under the Salt Formation in the Eastern Part of the Shanbei Salt Basin, Ordos Basin[J].Acta Geoscientica Sinica,46(2):493-496. |
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