化学驱油方法提高稠油油藏采收率实验研究  

Laboratory Study on Increasing Oil Recovery of Heavy Oil Reservoir by Chemical Flooding

作　　者：周雅萍[1] 赵庆辉[1] 刘宝良[1] 郭丽娜[1] 潘攀[1] 滕倩[1] 

机构地区：[1]中油辽河油田分公司勘探开发研究院,盘锦124010

出　　处：《精细石油化工进展》2011年第5期3-9,共7页Advances in Fine Petrochemicals

摘　　要：通过对表面活性剂品种、碱剂与表面活性剂(AS)二元复合体系、表面活性剂与聚合物(SP)二元复合体系的筛选,选出适合NB35-2油田原油性质的最佳化学驱油体系:1.5%表面活性剂17#的一元表面活性剂驱油体系;1.0%Na2CO3+0.3%表面活性剂25#的AS二元复合驱油体系;1.2%表面活性剂17#+0.1%聚合物的SP二元复合驱油体系。考察了这3种化学驱油体系的热稳定性及驱油能力。结果表明,这3种化学驱油体系的热稳定性较好;一元表面活性剂驱油效率可提高12.69%,SP二元复合驱油体系可提高驱油效率15.49%,AS二元复合驱油体系可提高驱油效率16.67%。The best chemical flooding systems suitable for NB35 -2 oilfield were selected by comparison of surfactant kinds ,binary compound system of alkaline and surfactant（AS） ,binary compound system of surfactant and polymer（ SP）, which included monosurfactant flooding system comprising 1.5% surfactant 17＂, binary compound flooding system AS comprising 1.0% Na2CO3 and 0.3% surfactant 25~, and binary compound flooding system SP comprising 1.2% surfactant 17# and 0.1% polymer. These three chemical flooding systems were evaluated on thermal stability and flooding capacity. The result showed that the above flooding systems had good thermal stability,the first system increased the oil recovery by 12.69%, the second one by 15.49% , the third one by 16.67%.

关 键 词：NB35—2油田 稠油油藏化学驱油 表面活性剂驱聚合物/表面活性剂驱 碱/表面活性剂驱 

分 类 号：TE345[石油与天然气工程—油气田开发工程]