聚合物驱后微生物提高采收率的可行性分析  

Feasibility analysis of microbial enhancing oil recovery after polymer flooding

作　　者：蒋焱[1] 曹功泽[1] 赵凤敏[1] 徐登霆[1] 盖丽鹏[2] 孙玉治[3] 

机构地区：[1]中国石化股份胜利油田分公司采油工艺研究院,山东东营257000 [2]中国石化股份胜利油田分公司孤岛采油厂,山东东营257231 [3]中国石化股份胜利油田分公司东辛采油厂,山东东营257094

出　　处：《油气地质与采收率》2008年第5期63-65,68,共4页Petroleum Geology and Recovery Efficiency

基　　金：中国石化科技攻关项目“高含水油藏微生物驱油技术研究”(P05076)

摘　　要：胜利油区聚合物驱油藏的51.5%已经转入后续水驱阶段,如何进一步提高聚合物驱后的采收率,是油田面临的主要问题之一。结合微生物提高采收率的主要机理、聚合物驱后油藏的条件以及室内实验,以孤岛油田中一区Ng3单元为例,分析了聚合物驱后微生物提高采收率的可行性。结果表明,微生物具备进一步提高聚合物驱后油藏采收率的潜力,中一区Ng3物模实验可提高采收率7.8%～8.3%。More than half of the polymer flooding blocks in Shengli Oilfield have stepped into the successive water flooding stage.One of the problems that we faced is how to enhance the oil recovery further after polymer flooding.By analyzed the mechanism of MEOR,conditions of the reservoir after polymer flooding and laboratory experiment,the feasibility of MEOR after polymer flooding was analyzed in Ng3 unit of Zhongl block,Guodao Oilfield.The re-sult indicates that MEOR can enhance the oil recovery further after polymer flooding.Oil recovery may be increased by 7.8% to 8.3% after the physical experiment in Ng3 unit of Zhongl block.

关 键 词：聚合物驱后 微生物 提高采收率 可行性 胜利油区 

分 类 号：TE357.9[石油与天然气工程—油气田开发工程]