热水和表面活性剂驱室内实验  

Laboratory experiment on hot water and surfactant flooding

作　　者：林日亿[1] 周广响 杨开 王新伟[1] 贾志英 喻西崇 

机构地区：[1]中国石油大学(华东)储运与建筑工程学院,山东青岛266580 [2]中国石油辽河油田金马油田开发公司,辽宁盘锦124000 [3]中海石油研究总院,北京100027

出　　处：《油气地质与采收率》2015年第4期114-117,共4页Petroleum Geology and Recovery Efficiency

摘　　要：针对辽河油田海26块油藏原油粘度高、常规水驱开发效果差等现状,通过对表面活性剂进行表面活性、界面张力、耐温性和吸附性等性能的评价,筛选出适用于海26块油藏的表面活性剂。通过一维管式驱油实验,研究了注入温度、表面活性剂溶液质量分数、注入方式对原油采收率的影响。结果表明,随着注入温度的不断升高,最终采收率不断增加,当注入温度超过120℃后,原油的最终采收率增加幅度变缓;随着表面活性剂溶液质量分数的增大,最终采收率不断增加,表面活性剂溶液质量分数达到0.3%后,最终采收率增加幅度变缓;表面活性剂与热水多轮次交替注入比单轮次注入表面活性剂的驱油效果要好。在注入温度为120℃、表面活性剂溶液质量分数为0.3%和4轮次交替注入优化参数下,热水和表面活性剂驱的最终采收率为83.67%。There are some difficulties in the development of Hai26 block in Liaohe oilfield,such as high oil viscosity and poor performance of conventional water flooding. Based on the evaluation of surface activity,interfacial tension,temperature tolerance and absorbability of ten kinds of surfactants,the most suitable surfactant was selected for Hai26 block.Through the one dimension flooding experiment,the injected water temperature,the influence of surfactant concentration and injection way on the recovery ratio was explored. The results showed that:as the injected water temperature increased,the recovery ratio increased at the same time,and the recovery ratio changed smoothly when the temperature was above120 ℃. The recovery ratio increased with the concentration of the surfactant until it reached to 0.3%. The recovery ratio of multi-slug injected way was higher than that of single slug injected way. At the optimized conditions,the injected water temperature of 120 ℃,the surfactant concentration of 0.3% and 4 cycles of alternating injection,the ultimate recovery efficiency of hot water and surfactant flooding was 83.67%.

关 键 词：热水驱 表面活性剂 驱油实验 采收率 交替注入 

分 类 号：TE357.43[石油与天然气工程—油气田开发工程]