某砂岩型铀矿床井间示踪技术应用研究
投稿时间:2020-02-15  修订日期:2020-03-23  点此下载全文
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作者单位E-mail
孙刚友 中核第四研究设计工程有限公司 sungangyoux@163.com 
程光华 中核第四研究设计工程有限公司  
王合祥 中核第四研究设计工程有限公司  
付海鹏 中核第四研究设计工程有限公司  
门宏 核工业二〇八大队  
刘波 核工业二〇八大队  
中文摘要:在某砂岩型铀矿床开展井间示踪试验,通过对抽液中的示踪剂浓度进行检测,结果显示,示踪剂突破时间为15 d,峰值时间为54 d,峰值浓度为2.561 mg/L。依据水动力条件下含矿含水层的溶液渗流速度公式,计算出地下水平均运移速度为0.51 m/d,表明地下水连通性较好;通过示踪试验期间两次停机前后示踪剂浓度值变化极小这一结果可知地下水在天然状态下流动性较弱;示踪剂浓度随时间变化曲线表明试验区段地下水赋存性质呈现孔隙水特征。
中文关键词:示踪试验  荧光素钠 渗流速度  砂岩铀矿床
 
The Application of Interwell Tracer Test in a Sandstone-type Uranium Deposit
Abstract:Interwell tracer test were carried out in the test section, then sampling analysis and tracer concentration detection were carried out on the pumping well, through the analysis of tracer detection results, tracer breakthrough time is 15 d,and peak time is 54 d, and peak concentration is 2.561 mg/L. Based on the hydrodynamic conditions of ore-bearing aquifer solution seepage velocity formula, to calculate the groundwater seepage velocity is 0.51 m/d. Through the analysis of tracer test twice during downtime changing situation of the tracer density, we can know that the mobility of the nature underground water is weaker in test section. It can be concluded that the underground water type in the test section not conform the characteristics of fracture water.
keywords:tracer  test fluorescein  sodium seepage  velocity sandstone-type  uranium deposit
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