摘要
针对ASP三元复合体系在发生乳化时对驱油效果的影响问题，采用多测点长岩心，研究了三元复合驱在不同渗透率岩心以及相同渗透率不同变异系数岩心中发生乳化时，对驱替压力、含水率及采收率变化的影响。研究表明，乳化体系在渗透率相同的均质岩心中驱油效果要好于未乳化体系，可提高5～10百分点；相同渗透率的均质岩心，随着渗透率增大采收率越高；相同变异系数的非均质岩心，乳化体系比未乳化体系采收率可提高5百分点左右；变异系数不同的非均质岩心，其变异系数越大，水驱及复合驱体系采收率就越低。
Focused on the affecting problem of ASP oil flooding when the system is emulsifying, with the help of multi-detected-point core, the influences of the emulsification on displacing pressure, water cut and recovery factor for the cores with different permeabilities and different variation coefficients but same permeability are researched. The studies show that the studies show that the oil flooding effects of the emulsified system in homogeneous cores with same permeability are enhanced by 5% -10% than ihose of the non-emulsified system; and moreover so are the recovery factors; for the heterogeneous cores with same variation coefficient, the EOR of the emulsified system is about 5 % higher than the other; for the heterogeneous cores with different variation coefficients, the bigger the variation coefficients are, the lower the recovery factors for both water flooding and ASP flooding.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2012年第3期126-129,共4页
Petroleum Geology & Oilfield Development in Daqing
基金
国家科技重大专项“大型油气田及煤层气开发”项目“松辽盆地喇、萨、杏高含水油田提高采收率示范工程”（2008ZX05052）.
关键词
乳化
采收率
渗透率
变异系数
emulsification
recovery factor
permeability
variation coefficient
