双孔法地浸采铀试验理论和方法  

The theory and method of two-well field test for in-situ leaching uranium

作　　者：姚益轩[1] 霍建党[1] 向秋林[1] 唐宝彬[1] 

机构地区：[1]核工业北京化工冶金研究院,北京101149

出　　处：《铀矿冶》2007年第3期118-123,共6页Uranium Mining and Metallurgy

摘　　要：传统地浸采铀现场试验花费时间长,投资大,由于浸出试验面积不能准确计算,故参数计算的可靠性得不到保证。双孔法地浸采铀现场试验的理论基础是一个钻孔注,另一个钻孔抽,不平衡抽注;在保持不平衡系数不变的前提下,浸出面积是固定的,并可准确计算。完成试验时间为6个月至1a。由于该方法快捷、投资省,目前在独联体国家得到广泛应用。Because leaching area in field test for in-situ leaching uranium is not accounted exactly, the reliability of obtaining parameters by calculating can not be ensured, and the whole test needs a long time and great investment. In two-well field test, lixiviant is injected from one well, pregnant solution is pumped out from the other, flow rate of the production well is more than that of the injection well, and uranium is not recoveried. In the case of keeping invariable ratio of pumping capacity to injecting capacity during the testing process, leaching area is not variable, can be exactly calculated. The full field test needs six months to one year. Two-well test is a scientific,rapid, minimal spending field test method, and is widely used in Commonwealth of Independent States.

关 键 词：地浸采铀 现场试验 双孔法 

分 类 号：TL212.12[核科学技术—核燃料循环与材料]