岩盐溶解速率影响因素的实验

Experiments of the influencing factors on dissolution rate of rock salt

围绕岩盐溶解速率影响因素这一关键问题开展了系列实验,研究了溶解面积、溶解面倾角、溶液浓度、溶液温度、水流速对岩盐溶解速率的影响规律。规律如下:随着溶解面面积增大溶解速率逐渐趋于一个稳定值;温度、倾角、流速与溶解速率成指数关系;随着溶液浓度的增大岩盐溶解速率逐渐减小。并应用灰色关联度分析方法,分析了溶解面倾角、溶液浓度、溶液温度及水流速主要影响因素的主次顺序,得出溶液温度>溶解面倾角>溶解流速>溶液浓度。研究结果对岩盐油气储库的安全、快捷建腔提供基础理论和实验基础。

The influence of different factors on dissolution rate of rock salt is studied by a se experiments, such as dissolution obliquity, solution concentrations, solution temperatures and s flows. The laws of rock salt dissolution shown in the experiments are as follows： it isn＇t obvious t effect of the dissolution rate on different dissolution area. Temperature, velocity of flow and diss obliquity is in an exponential relationship with rock salt dissolution. Dissolution rate decreases w increase of solution concentration of rock salt. Gray correlation analysis is adopted to study the diss ries of olution hat the olution ith the olution obliquity, solution concentration, temperature and solution flow rate. It is found that solution temperature is the main factor, followed by dissolution obliquity, solution flow rate, and solution concentration. The findings can provide theoretical foundation and experimental basis for rapidly create cavity.