西安石油大学学报（自然科学版）2018，Vol.33Issue(3)：86-91,6.DOI:10.3969/j.issn.1673-064X.2018.03.014
纳米聚合物微球调驱封堵机理及现场试验
Profile Control Mechanism and Field Test of Nano Polymer Microspheres
摘要
Abstract
In order to understand the microstructure,particle size variation,profile control plugging mechanism of WQ nano polymer microspheres and its fieldapplication effect,the WQ polymer microspheres were studied by means of optical microscope,scanning electron microscope (SEM),laser particle size analyzer,and profile control plugging simulation experiments and field tests.The results show that with the extension of hydration time,the size of WQ nano polymer microspheres gradually increases,the long chain molecules intertwine and agglomerate,and the microspheres with different particle sizes are formed.Under the conditions of different reservoir physical property,the profile control plugging effect of different particle size microspheres is very different.The small size microspheres enter the deep part of high permeability layer and expand,which increases the specific surface area of the high permeability layer and reduces its permeability,and the adaptability of the small size microspheres to profile control flooding is better than that of the large size microspheres. The field application results show that the total daily oil production of 5 well groups in B102 block of Jiyuan oilfield increased by 5.2 t, and the comprehensive water cut decreased by 5%.The profile control flooding of WQ nano polymer microspheres achieved a good production increasing effect.关键词
深部调驱/纳米聚合物微球/微球粒径/扫描电镜/物理模拟Key words
deep profile-control flooding/nano polymer microsphere/microphere particle size/scanning electron microscope/physical simulation分类
能源科技引用本文复制引用
易萍,周广卿,王石头,张荣,曹毅..纳米聚合物微球调驱封堵机理及现场试验[J].西安石油大学学报（自然科学版）,2018,33(3):86-91,6.基金项目
国家自然科学基金面上项目"基于细-宏观力学的页岩储层脆性破裂机理研究"(51674197) （51674197）
国家油气重大专项"大型油气田及煤层气开发"(2017ZX05013-005) （2017ZX05013-005）
