含水介质中粘粒释放的临界盐浓度测定  

Mensuration of Critical Salt Concentration of Particle Release in Aqueous Medium

作　　者：李国霞[1] 韩志勇[1] 朱敬涛 

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050 [2]甘肃省环科院,甘肃兰州730000

出　　处：《海洋通报》2009年第1期11-15,共5页Marine Science Bulletin

基　　金：国家自然科学基金资助项目(40572142)

摘　　要：通过渗流试验和批量试验,对多孔介质水敏感性发生过程中颗粒释放的临界盐浓度进行了测定。试验结果表明:水动力条件也能导致颗粒释放的发生,但是释放量很小;当NaCl溶液浓度达到0.06mol/L左右时,开始发生明显的颗粒释放现象,而其临界盐浓度并非是个单一值,可以确定为一个范围,即(0.06±0.005)mol/L;当NaCl溶液浓度为0.03mol/L时,颗粒释放量最大。With the seepage and batch experiments, this paper mensurated the critical salt concentration （CSC） which can result in particle release in the water sensitivity process for porous medium. The results indicated that： the water fluid power can result in particle release in part, but the quantity was very little; when the concentration of the NaCl solution reached about 0.06mol/L, there was a obvious particle release phenomenon, and the critical salt concentration （ CSC ） of the NaCl solution was not a simple value but a range of 0.06 ± 0.005 mol/L; when the concentration of the NaCl solution reached about 0.03 mol/L, the quantity of the released particle got to the peak value.

关 键 词：多孔介质 颗粒释放 临界盐浓度 

分 类 号：X523[环境科学与工程—环境工程]