聚合物驱后凝胶与表面活性剂交替注入驱油效果  

Effect of the gel and surfactant alternating injection after polymer flooding

作　　者：张继红[1] 董欣[1] 叶银珠[2] 杨生[3] 王亚楠[3] 

机构地区：[1]大庆石油学院提高油气采收率教育部重点实验室,黑龙江大庆163318 [2]中国石油勘探开发研究院,北京100083 [3]大庆油田有限责任公司第一采油厂,黑龙江大庆163001

出　　处：《大庆石油学院学报》2010年第2期85-88,共4页Journal of Daqing Petroleum Institute

基　　金：国家科技重大专项项目(2008ZX05010-004)

摘　　要：为开采聚合物驱后油藏剩余油,进一步提高采收率,分析凝胶调剖与表面活性剂驱油结合机理,采用小段塞多轮次交替注入方式;利用铬离子凝胶体系和RMA-1型表面活性剂,在大平板岩心上进行聚合物驱后凝胶与表面活性剂段塞驱油实验.结果表明:利用聚合物驱后凝胶与表面活性剂多轮次交替注入方式驱油后,其阶段采收率可在聚驱基础上提高10%以上,说明凝胶与表面活性剂交替注入驱油技术能够在聚合物驱后进一步挖掘剩余油,提高原油采收率.In order to fully exploit the remaining oil after polymer flooding,further enhancing oil recovery,the combination mechanism of gel profile and surfactant flooding are analyzed.The multi-cycle and alternative injection oil displacement experiment was carried out on the large flat-panel model with the selected gel system and surfactant.The experimental results show that,the stage recovery of the gel and surfactant slug alternative injection flooding can improve more than 10% on the basis of the polymer flooding.It is shown that the technology of gel and surfactant alternative injection can enhance oil recovery through further tapping the remaining oil.

关 键 词：聚合物驱 凝胶 表面活性剂 段塞 交替注入 

分 类 号：TE357.4[石油与天然气工程—油气田开发工程]