强碱三元复合驱后多种调驱剂的驱油效果对比  

Comparison of Enhancing Oil Recovery Effects of Multiple Displacement Agent Systems after Alkaline/Surfactant/Polymer Flooding

作　　者：王子健[1] 卢祥国[1] 张婧[1] 张宝岩[1] 金玉宝 张月仙 宋茹娥 

机构地区：[1]东北石油大学提高油气采收率教育部重点实验室,黑龙江大庆163318 [2]中国石油大庆油田公司第四采油厂,黑龙江大庆166521

出　　处：《西安石油大学学报（自然科学版）》2016年第4期69-74,共6页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：大庆油田公司重点科技攻关课题"杏北开发区一类油层三元复合驱后提高采收率室内研究"(编号:DQYT-0504003-2014-JS)

摘　　要：为了优选出强碱三元复合驱后增油效果最好的调驱剂体系,以大庆杏树岗油田储层为研究对象,通过物理模拟驱油实验研究了恒速和恒压条件下的多种调驱剂在强碱三元复合驱后的驱油效果。结果表明,强碱三元复合驱后注入高浓度聚合物溶液、无碱二元复合体系、弱碱三元复合体系、"聚合物凝胶+无碱二元复合体系"组合以及"聚合物凝胶+弱碱三元复合体系"组合都可以进一步提高采收率,其中"聚合物凝胶+弱碱三元复合体系"组合液流转向效果较好,含水率下降幅度较大,采收率增幅也较大。In order to optimize the best oil displacement agent system after alkaline/surfactant/polymer flooding, taking the reservoir conditions of Daqing Xingshugang oilfield as research subject, the enhancing oil recovery effects of multiple oil displacement agent systems after alkaline/surfactant/polymer flooding under constant speed and constant pressure are studied and compared by physical simu- lation oil displacement experiments. The results show that high concentration polymer system, surfactant/polymer system, weak alkali/ surfactant/polymer system,polymer gel ＋ surfactant/polymer system and polymer gel ＋ weak alkali/surfactant/polymer system could all further enhance oil recovery after alkaline/surfactant/polymer flooding, and of these, the polymer gel ＋ weak alkali/surfactant/polymet system has the better liquid flow steering effect, the greater water-cut decreasing and the greater increase of oil recovery factor.

关 键 词：三元复合驱 调驱剂体系 物理模拟 聚合物凝胶 组合液 液流转向 采收率 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]