【作者】 韩秀贞； 林梅钦； 李明远； 郭继香； 吴肇亮；

【Author】 Xiu-Zhen Han*, Mei-Qin Lin, Ming-Yuan Li, Ji-Xiang Guo, Zhao-Liang Wu Enhanced Oil Recovery Research Center, China University of Petroleum, 102249, Beijing

【机构】 中国石油大学(北京)提高采收率中心；

【Abstract】 On the basis of dynamic light scattering (DLS) principle, influence factors of size of linked polymer micro-ball system are studied using Zetasizer-Nano-Zs. The experimental results show that, when hydration temperature is 40℃, the hydrodynamic diameter (Dh ) of linked polymer micro-ball increases from 244.3 to 278.4nm while hydration time increases from 3 to 15 day, then decreases with the increasing of hydration time; Dh decreases rapidly from 302.7 to 229.6nm while NaCl concentration increases from 1000mg/kg to 10000mg/kg, but Dh slightly increase with the increasing of NaCl concentration; Dh slightly increases with linked polymer micro-ball concentration increasing; Dh becomes smaller when hydration temperature is 90℃.更多还原