摘要
以常规聚合物部分水解聚丙烯酰胺为对比,借助聚合物溶液在多孔介质中压力传播特征分析其运移规律。结果显示:注聚初期,疏水缔合聚合物在岩心进口端吸附滞留现象严重,但随压力升高,聚合物分子链断裂,逐渐向岩心深部运移,进一步表明疏水缔合聚合物在多孔介质中运移是一个动态、渐变的过程。
In comparison with conventional partially hydrolyzed polyacrylamide,the migration law of polymer solution in porous media was analyzed by means of pressure propagation characteristics of polymer solution. The results show that the adsorption and retention of hydrophobic associating polymer at the core entrance is serious at the early stage of polymer injection. However,with the increase of pressure,polymer molecular chains break and gradually migrate to the deep core,which further indicates that the migration of hydrophobic associating polymer in porous media is a dynamic and gradual process.
作者
陈勇
Chen Yong(Henan Province,Henan Oilfield Branch of Sinopec,Nanyang 473000)
出处
《石化技术》
CAS
2019年第2期55-55,共1页
Petrochemical Industry Technology
关键词
疏水缔合聚合物
多孔介质
吸附滞留
hydrophobic associative polymers
porous medium
Adsorption retention
