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采用量纲分析法建立实验相似理论并建立模拟实验平台,采用示踪剂方法观测在不同套管间距、流量条件下的流场分布情况,并用高清相机记录。以此归纳总结出盐岩水平溶腔腔内卤水运移可分为三个作用区:对流扩散区、缓冲扩散区和饱和沉淀区。计算了各区域的运移范围,并将实验得出的数据依据相似比换算成实际工程中的数值,为现场盐岩水平溶腔的高速高效建造提供指导。
The dimensionless analysis method was used to establish the experimental similarity theory and the simulation experiment platform was set up. The flow field distribution under different casing spacing and flow rate was observed by the tracer method and recorded with a high-definition camera. In this way, it can be concluded that brine migration in salt solution cavity can be divided into three regions: convection diffusion zone, buffer diffusion zone and saturated sedimentation zone. The migration range of each area is calculated, and the experimental data are converted into actual engineering values according to the similarity ratio, which provides guidance for the high-speed and high-efficiency construction of the salt cavern in the field.