摘要
针对矿场实际需求,利用现代油藏工程理论、仪器检测和物理模拟方法,开展驱油剂和转向剂及其段塞组合对相对渗透率和驱油效率影响实验.结果表明,驱油剂和转向剂类型及其组合方式对驱油效率存在影响,聚合物凝胶驱采收率增幅最大,其次是驱油剂YHZ,再次是"聚合物凝胶+驱油剂YHZ"、"聚合物凝胶段塞+驱油剂ZWY"和"聚合物凝胶段塞+驱油剂ROS",聚合物溶液的增幅最小;以聚合物为主体的驱油剂和转向剂可以引起岩心水相渗透率降低,相对渗透率曲线右端点向右移,等渗点下含水饱和度增加.
In view of the field practical needs,this paper applies modern reservoir engineering theory,equipment test and physical simulation to reveal the effect of displacement agent,profile control agent and their slug combination on permeability and displacement efficiency.The conclusions of study show displacement agent,profile control agent and their slug combination have some effect on displacement efficiency,and increasing degree of recovery of polymer gel flooding is the highest,and that of oil displacement agent 'YHZ' flooding is higher than slug combination between polymer gel slug and oil displacement agent 'YHZ' or 'ZWY' or 'ROS',and polymer flooding is lowest.Both of displacement agent and profile control agent based on polymer can reduce core water-phase permeability,the relative permeability curve endpoint shifts to the right and the intersecting point’ s water saturation increases.
出处
《大庆石油学院学报》
CAS
北大核心
2010年第2期54-59,共6页
Journal of Daqing Petroleum Institute
基金
国家科技重大专项项目(2008ZX05010-004)
关键词
驱油剂
转向剂
岩心相对渗透率
驱油效率
oil displacement agent
profile control agent
relative permeability
sweep efficiency
