| 察尔汗盐湖霍布逊区段资源开采过程中储卤层系统变化特征研究 |
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| 关键词:ultra-low-grade solid potassium ore solid-liquid conversion water solution mining Qarhan Salt Lake Huobuxun area Qaidam Basin |
| 基金项目:青海学者专项(编号: QHS201802);国家自然科学基金项目(编号: 41807216);中国科学院重点部署项目(编号: ZDRW-ZS-2020-3);青海省应用基础研究计划项目(编号: 2020-ZJ-765);第二次青藏高原综合科学考察研究项目(编号: 2019QZKK0805) |
| 作者 | 单位 | E-mail | | 韩光 | 青海省柴达木综合地质矿产勘查院, 青海省柴达木盆地盐湖资源勘探研究重点实验室 | 114472026@qq.com | | 袁小龙 | 河海大学水利水电学院
中国科学院青海盐湖研究所, 中国科学院盐湖资源综合高效利用重点实验室,青海省盐湖地质与环境重点实验室 | xiaolongy@isl.ac.cn | | 韩积斌 | 中国科学院青海盐湖研究所, 中国科学院盐湖资源综合高效利用重点实验室,青海省盐湖地质与环境重点实验室 | | | 刘久波 | 青海省柴达木综合地质矿产勘查院, 青海省柴达木盆地盐湖资源勘探研究重点实验室 | | | 范增林 | 青海省柴达木综合地质矿产勘查院, 青海省柴达木盆地盐湖资源勘探研究重点实验室 | | | 胡燕 | 青海省柴达木综合地质矿产勘查院, 青海省柴达木盆地盐湖资源勘探研究重点实验室 | | | 张西营 | 中国科学院青海盐湖研究所, 中国科学院盐湖资源综合高效利用重点实验室,青海省盐湖地质与环境重点实验室 | |
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| 摘要: |
| Comparative Analysis on the Characteristic Changes of the Brine Reservoir System before and after Exploration of the Qarhan Salt Lake (Huobuxun Area) |
| Qarhan Salt Lake in Qaidam Basin has a considerable amount of low-grade solid potassium salt ore; developed mainly through water-replenishing dissolved liquefaction mining. This paper compares and analyzes the characteristics of typical drilling core porosity, solid potassium ore content, and halogen composition change before (2004) and after (2011 and 2019) large-scale exploitation of salt lake resources in Hobson District, and the efficiency of potassium salt liquefaction mining is evaluated. The results show that a large number of high-mineralized brines are brought out due to large-scale brine mining, while the low mineralization water recharge reservoir pores dissolve salt minerals in the salt layer, gradually increasing the porosity of the reservoir. During this period, the KCl grade drop in brine ore was less than the decrease in the KCl grade of solid deposit. This showed that the brine dissolved a large number of solid low-grade potassium ore in the stone salt layer, raising its KCl grade. This paper is of great significance for the optimization of solid potassium salt liquefaction mining scheme in the Qaidam Basin. |
| HAN Guang,YUAN Xiao-long,HAN Ji-bin,LIU Jiu-bo,FAN Zeng-lin,HU Yan,ZHANG Xi-ying.2022.Comparative Analysis on the Characteristic Changes of the Brine Reservoir System before and after Exploration of the Qarhan Salt Lake (Huobuxun Area)[J].Acta Geoscientica Sinica,43(3):279-286. |
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