油气地质与采收率2012，Vol.19Issue(5)：61-64,4.
非均质条件下孔喉尺度弹性微球深部调驱研究
Study on indepth profile control and flooding of pore-scale elastic microspheres under heterogeneous condition
摘要
Abstract
Due to the particularity of design principle for pore-scale elastic microspheres profile control and flooding technology, the particle-pore size matching factor was introduced and through heterogeneous parallel sandpack experiments, the plugging property of elastic microspheres under different particle-pore size matching relationship and the effect of permeability ratio on the ability of profile improvement were studied. Based on this, field test of pore-scale elastic microspheres under heterogeneous condition was carried out. Indoor experimental results show that in a better particle-pore size matching factor range, the residual resistance factor and plugging rate of sandpacks are the maximum as well as plugging effect; elastic microspheres can prefer to plug high permeability layer selectively so as to make the diversion rate of high and low permeability tube all tend to 50% , which indicates that elastic micro-spheres have significant selectivity on permeability; permeability ratio has an important effect on profile control an flooding performance of elastic microspheres and under condition of better particle-pore size matching factor range and lower permeability ratio, the profile improvement of elastic microspheres is better. Field test results show that when the particle-pore size matching factor is 1.52 and the permeability ratio is 3. 1, the elastic microspheres can control the water injection profile effectively and the profile improve ability of target layer 65 and 67 is up to 98% ; it is scientific to guide the field test of elastic microspheres profile control and flooding using particle-pore size matching factor and permeability ratio.关键词
非均质/弹性微球/粒径匹配系数/封堵性能/渗透率级差/深部调驱Key words
heterogeneous/elastic microspheres/particle-pore size matching factor/sealing property/permeability ratio/field test分类
能源科技引用本文复制引用
姚传进,雷光伦,高雪梅,李蕾..非均质条件下孔喉尺度弹性微球深部调驱研究[J].油气地质与采收率,2012,19(5):61-64,4.基金项目
中央高校基本科研业务费专项资金资助"孔喉尺度弹性微球渗流机理的实验和模拟研究"(11CX06025A),中国石油大学(华东)研究生创新工程资助项目"弹性微球体系渗流特征及提高采收率机理研究"(CXZD11-04). （11CX06025A）
