大尺寸盐岩溶腔模型制备研究及应用

Preparation of Large Size Salt Rock Solution Mining Model and Its Application

利用现场钻取的岩心,模拟盐穴储气库水溶建腔过程,岩心尺寸小,且不能完全代表整个造腔层段的特征。经研究,提出了一种大尺寸盐岩储气库溶腔模型制备方法,采用氯化钠、泥土等材料配制盐岩溶腔模型;建立了盐穴储气库水溶建腔数学模型,利用相似比确定了实验参数;给出了利用人造盐岩模型开展造腔物理模拟的应用实例。

When salt cores from drill-site are used to simulate solution mining process of salt caverns, they are too small to fully represent the whole salt bed. A new preparation method for solution mining model is put forward in the paper. Materials are selected to make up salt rock model include sodium chloride, clay and so on. Mathematical model of solution mining is set up. Experimental parameters are obtained by similarity ratio. An application case of solution mining simulation with artificial salt rock model is given.