基于质量守恒的示踪测速模型及实证

The general tracing model of measuring flow velocity based on mass conservation

摘要: 示踪测井技术能准确测定地下水渗透流速,传统方法适用于没有垂向流的测井。总结了前人的研究,结合工程实际引入函数vv(z)和vh(z),并根据示踪剂质量守恒的原理建立了基于质量守恒的示踪测速模型,考虑了测井中水流垂向运动的影响。最后利用模型计算了存在较强垂向流的小浪底反调节水库6#井的渗透流速,计算结果与水库渗漏勘探结果一致,说明模型的计算结果是正确的,能排除垂向流的干扰,模型有较强的实际应用价值。

Abstract: Tracer logging technique can accurately detect the velocity of groundwater seepage and the traditional point dilution is suitable for computing seepage velocity without vertical flow influence.This paper firstly introduces the research which is aimed to compute horizontal seepage velocity under the influence of vertical flow,and then pointes out that there are some unreasonable problems of the existing models.The authors rebuild the computing model of seepage velocity under the influence of vert