铀矿冶2025，Vol.44Issue(2)：18-28,11.DOI:10.13426/j.cnki.yky.2024.07.02
地浸采铀"水平井注-直井抽"与"直井抽注"数值模拟对比
Numerical Simulation Comparison on"Horizontal Well Injection-Vertical Well Pumping"and"Vertical Well Injection and Pumping"in In-situ Leaching of Uranium
摘要
Abstract
In order to clarify the leaching effect of horizontal well technology on in-situ leaching of ura-nium,a numerical simulation method was used to study the influence of different parameters on"Hor-izontal Well Injection-Vertical Well Pumping"and conventional"Vertical Well Injection and Pum-ping".The results show that compared with"Vertical Well Injection and Pumping",the length of horizontal wells is proportional to the leaching range,the vertical leaching range of"Horizontal Well Injection-Vertical Well Pumping"is small,the plane sweep efficiency is high,the dead corner of leac-hing is small,and the effective utilization rate of leaching solution is high;it has a wide coverage in the horizontal direction and have significant advantages in the treatment of thin uranium ore deposits.The ratio of horizontal permeability to vertical permeability has a greater impact on the leaching of"Vertical Well Injection and Pumping".When the vertical permeability is low,the leaching effect of horizontal well sections is better than that of vertical well sections;the amount of pumping and injec-tion fluid is positively correlated with the leaching range.As the amount of pumping and injection flu-id increases,the dead corners of leaching of both"Horizontal Well Injection-Vertical Well Pumping"and"Vertical Well Injection and Pumping"decrease.The increase in the amount of pumping and in-jection fluid has a greater impact on the leaching effect of"Horizontal Well Injection-Vertical Well Pumping".When the flow rate reaches 210 m3/d,the leaching range of the ore layer of"Horizontal Well Injection-Vertical Well Pumping"is higher than that of generalized"Vertical Well Injection and Pumping".关键词
地浸采铀/水平井/直井/数值模拟/渗透率/抽注液量/溶浸范围Key words
in-situ leaching of uranium/horizontal well/vertical well/numerical simulation/permeability/pumping and injection fluid volume/leaching range分类
能源科技引用本文复制引用
李星浩,李召坤,张宇,赵龙昊,李沁慈..地浸采铀"水平井注-直井抽"与"直井抽注"数值模拟对比[J].铀矿冶,2025,44(2):18-28,11.基金项目
中核集团集中研发项目(中核科发[2021]144号,深部砂岩铀矿水平井钻成井与流场调控技术研究). （中核科发[2021]144号,深部砂岩铀矿水平井钻成井与流场调控技术研究）
