老井多元热流体增产引效影响因素实验研究  

Research on Influential Factors of Multi-component Thermal Fluid Flood on Old Wells

作　　者：张伟 刘义刚 邹剑 王秋霞 王弘宇 

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300450

出　　处：《科学技术与工程》2016年第17期167-170,共4页Science Technology and Engineering

基　　金："十二五"国家科技重大专项(2011ZX05057-005)资助

摘　　要：针对渤海稠油油田冷采井低产低效原因分析,通过室内驱替实验研究了多元热流体增产引效工艺在非热采完井稠油油田应用的可行性;并研究了不同温度、不同原油黏度及不同含水率条件下影响因素。室内实验结果表明：多元热流体增产工艺对稠油冷采井具有明显增产作用。当注入温度在90～100℃条件下,原油黏度在500～2 000 m Pa·s,驱油效率均可达70%以上;含水率小于60%时,驱油效率可达55%。The reason of cold production＇s low displacement efficiency in Bohai oil field has been analyzed. The experimental result shows that the stimulation treatment of multi-component thermal fluid flood for non-thermal completion wells is feasible. The influential factors at different temperatures,viscosity,water cut have been studied.The result of laboratory experiment indicates that multi-component thermal fluid flood can significantly increase the oil recovery of cold production wells for heavy oil reservoir. The displacement efficiency can be above 70% for viscosity of oil between 500 to 2 000 m Pa·s at 90 to 100 degrees. When the water cut is under 60%,the displacement efficiency can reach 55%.

关 键 词：多元热流体 增产引效 影响因素 

分 类 号：TE357.44[石油与天然气工程—油气田开发工程]