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利用自制仪器对某超深地层(约2000m)盐岩、含泥盐岩进行了常温和高温溶解试验,发现密度与时间关系呈现指数衰减,并对其参数进行了拟合,得出常温下纯盐岩的溶解速率是含泥盐岩的1.26倍,高温86℃和高温50℃时的溶解速率分别是常温下的2.32和1.49倍。根据质量守恒原理,分别推导得出了常温和高温下溶解速率与密度的函数关系。通过实验数据得出,常温和高温下溶解速率与密度都可以近似成线性关系,并对各个参数进行了拟合,为深部盐岩溶腔建腔模拟提供了基本参数。
The self-made instruments were used to test the dissolution of salt rock and muddy salt rock in an ultra-deep formation (about 2000m) at room temperature and high temperature. The density-time relationship showed exponential decay, and its parameters were fitted. The dissolution rate of salt rock is 1.26 times that of mud salt rock. The dissolution rates at 86 ℃ and 50 ℃ are 2.32 and 1.49 times respectively at room temperature. According to the principle of conservation of mass, the relationship between the dissolution rate and the density at normal temperature and high temperature is derived respectively. The experimental data shows that the dissolution rate and density can be approximated linearly at room temperature and high temperature, and the various parameters are fitted, which provides the basic parameters for the modeling of deep salt caverns.