聚合物微球性能及调驱机理研究  

Performance of Polymer Microspheres and Mechanism of Profile Control and Flooding

作　　者：姚婷玮 Yao Tingwei(School of Petroleum Engineering,Xian Petroleum University,Shaanxi Xi'an 710065)

机构地区：[1]西安石油大学石油工程学院,陕西西安710065

出　　处：《云南化工》2020年第11期5-6,9,共3页Yunnan Chemical Technology

基　　金：国家科技重大专项资助项目(2016ZX05050-009)。

摘　　要：聚合物微球具有膨胀性好、耐温耐盐性、抗剪切性以及延迟膨胀等特性,能很好的应用于深部储层调驱技术。它的初始粒径小,能够随注入液进入地层深部进而水化膨胀至最大体积,对高渗透大孔道产生有效封堵的作用,从而使流体发生微观改向。随着注入压力的增加,聚合物微球作为一种弹性球体会产生变形,从而继续运移直至下一次封堵,表现出了逐级深部调驱的特性。Polymer microspheres have good expansibility,temperature and salinity resistance,shear resistance and delayed expansion characteristics.It can be well applied to deep reservoir profile control and flooding technology.The initial particle size of polymer microspheres is small.It can expand to the maximum volume with the injection fluid entering the deep stratum,forming effective plugging for high permeability and large pore channels,making the fluid micro-direction change.With the increase of injection pressure,polymer microspheres as an elastic sphere will deform and continue to migrate until the next plugging,showing the characteristics of deep profile control and flooding step by step.

关 键 词：聚合物微球 调驱机理 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]