| 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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| 引用本文：樊馥,马占荣,刘建平,张永生,包洪平.2025.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[J].地球学报,46(2):493-496. |
| DOI：10.3975/cagsb.2025.010301 |
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| 基金项目:国家重点研发计划项目(编号: 2023YFE0104000) |
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| 中文摘要:钾、锂资源是保障我国农业粮食安全以及新能源产业发展的关键矿产资源, 一直以来均保持极高的对外依存度。中国地质科学院矿产资源研究所与中国石油天然气股份有限公司长庆油田分公司合作, 通过“油盐兼探”, 在鄂尔多斯陕北盐盆东部地区, 获得了米探6井、榆阳1井盐下段马家沟组四段富K、Li、Br油田水新发现, 为鄂尔多斯盆地锂、钾资源新层系。测试结果表明: 该层段卤水KCl含量为1.798%~3.573%, LiCl为1 460.606~1 915.152 mg/L, 均为工业品位数倍; Rb2O和Br含量也达到工业利用和综合利用标准。马家沟组四段, 在盆地范围内分布较广, 其富K、Li、Br油田水的发现, 展示了鄂尔多斯盆地良好的K、Li等资源前景。 |
| 中文关键词:鄂尔多斯盆地 油盐兼探 盐下段 马四段 富K、Li、Br油田水 |
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| 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 |
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| Abstract: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. |
| keywords:Ordos Basin oil and salt exploration lower member fourth member of the Majiagou Formation K-rich, Li-rich, and Br-rich oilfield water |
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