三元复合驱的分层注入包括分压和分质两种技术。随着三元复合驱转向渗透率更低、层间差异更大的二、三类油层，原针对聚合物研究的分注工艺存在不适应性。因此，研究分注工具对三元复合体系的作用机理，明确三元体系中碱、表面活性剂在分注过程中对聚合物分子的作用机理是更好地开展三元复合驱分注的关键。项目拟利用扫描电镜（SEM）和动态激光散射仪（DLS）观察对比三元复合溶液流经分注工具时聚合物分子结构的形态变化，测定分子线团直径变化，结合聚合物、碱和表面活性剂在作用过程中表现出的电离、络合等特性，总结分注工具对三元复合体系的剪切机理和三元体系中碱和表面活性剂在该过程中对聚合物分子链断裂的影响机理；利用粒子成像测速系统（PIV）实测模拟装置中三元复合体系流经分注工具过程动态流场变化，给出分注工具对三元复合体系平均速度、脉动速度及应变率等参数的变化规律；采用不同手段测试剪切前后三元体系中聚合物分子量，明确剪切与分子量变化的关系，在此基础上，研究分注工具剪切后的三元复合体系与油层渗透率的匹配关系。

ASP flooding included two technologies which are partial pressure and quality. The original study for polymer injection is not adaptability, separate ASP flooding has turned to the reservoir of two or three type which permeability is low and differences between layers are big. Therefore, study the effect of ASP multisystem partial quality tools, the key element to developed ASP flooding is clear-cut the alkali, surfactant mechanism of polymer molecules in injection engineering of ASP flooding. The project use SEM and DLS, comparative analysis ASP solution through different medium injection tool shape changes of molecular structure, determination of molecular clew diameter change. The combination of polymer, surfactant and alkali demonstrated the ionization, complexation properties in the process, Summarizing the mechanism injection tools on ASP system and the mechanism of alkali, surfactant to polymer molecular chain breakup in the process .Using particle image velocimetry system simulation device in ASP system through injection tools dynamic flow process changes, pointed out the Variation of ASP system average velocity, velocity of pulsation, rate of strain in injection tools, and study on matching relationship between injection tools shear after the ASP system and permeability.