表面活性剂驱油技术在五里湾一区的研究及应用  

Research and Application of the Technique of Surfactant Displacement in the First Area of Wuliwan Oilfield

作　　者：杨棠英[1] 刘笑春[1] 郑力军[1] 

机构地区：[1]中石油长庆油田分公司油气工艺研究院低渗透油气田勘探开发国家工程实验室,陕西西安710018

出　　处：《石油天然气学报》2014年第3期131-134,9,共4页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2011ZX05013-005)

摘　　要：针对五里湾一区油藏特征，室内试验研发了双子表面活性剂CYB-1，并进行了性能评价。结果表明，表面活性剂在0．2％～0．5％质量分数范围内油水界面张力可达到10^-3mN／m，具有较好的耐温抗盐性。应用双子表面活性剂CY昏1在五里湾油田开展了驱油现场试验，连片注入9个井组，一共对应41口油井，注入后试验区动态整体表现出了液量上升、含水下降的见效特征，试验区油藏开发指标得到改善，预测采收率提高6．3％。In view of the features of First Area of Wuliwan Oilfield,laboratory experiment was carried out for the development of Gemini surfactant CYB-1and its performance evaluation.The result indicates that oil/water interfacial tension of the surfactant could be at 10-3 mN/m in the concentration range of 0.2%~0.5%,it has good temperature tolerance and salt resistance.The Gemini surfactant CYB-1is applied for field test in Wuliwan Oilfield.It is used in 9well groups for a bulk injection,which corresponds to 41oil wells.After injecting,the liquid volume is raised in the whole testing area and the water content is reduced,reservoir development index is improved,forecasting recovery ratio enhances 6.3%in the testing area.

关 键 词：低渗透油藏 表面活性剂驱 水驱效率 可采储量 

分 类 号：TE357.469[石油与天然气工程—油气田开发工程]