定边区块微生物驱油效果研究  

Development of Microbial Enhanced Oil Recovery in Dingbian Block

作　　者：王克亮[1] 王继红[2] 李世强 赵莉 

机构地区：[1]东北石油大学提高油气采收率教育部重点实验室,大庆163318 [2]东北石油大学研究生院,大庆163318 [3]陕西延长石油集团有限责任公司研究院,西安710075

出　　处：《科学技术与工程》2011年第23期5529-5532,共4页Science Technology and Engineering

基　　金：黑龙江省高校科技创新团队建设计划(2009td08)资助

摘　　要：针对延长油田定边区块特低渗透油藏,水驱后如何进一步提高采收率的问题,开展了微生物驱提高采收率实验研究。模拟油层温度50℃等条件,对三种微生物菌种S、M、P在定边天然岩心柱中的驱油效果进行研究。结合注入压力和采收率曲线动态分析三种微生物菌种在岩心中的作用规律。浓度为10%的菌种M的最佳用量为0.5 PV,提高采收率效果最好可达到9%,从而说明菌种M对低渗透、微裂缝发育的定边区块具有良好的适应性。Aiming at Yanchang Pereoleum Group Dingbian Block in the special low permeability reservoir, the problem of how to further enhance oil recovery after water flooding, oil displacement experiment is carried in laboratory. By simulating reservoir conditions such as temperature 50℃ and so on, researched on the displacement effect of three microorganism S, M, P in the Dingbian natural core columns. Analyzed oil displacement mechanism of the three microorganism S,M,P through combining injection pressure and the recovery curve in the core. When mass concentration of microorganism M was 10%, slug size was 0.5 pore volum, recovery could reach 9%. The results demonstrate that microorganism M has a good adaptability for low permeability, micro-fractures fixed side block.

关 键 词：低渗透 微生物驱 降压增注 调剖 

分 类 号：TE357.9[石油与天然气工程—油气田开发工程]