大庆石油地质与开发

2006, (03) 88-90+109-110

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聚驱后续水驱阶段挖掘分流线剩余油进一步提高采收率的方法
A Method for Enhancing Oil Recovery by Producing Remaining oil at Fluid Diversion Line at Subsequent Water Flooding Stage after Post-polymer flooding

高淑玲,邵振波,张景存
GAO Shu-ling,et al.(Exploration and Development Research Institute of Daqing Oil Field Company Ltd.,Daqing 163712

摘要(Abstract):

根据水动力学流场分布的基本理论,提出了通过调整注采系统,在分流线附近增加聚合物用量来挖掘分流线剩余油的方法,并用数值模拟技术进行了预测研究。结果表明,正常注聚640 mg/L.PV结束后转井别追加注聚300 mg/L.PV,后续水驱阶段采收率提高值为4.21%,增油效果显著。
According to hydrodynamic flow field distribution theory,a new method is provided for enhancing oil recovery,by adjusting water flooding regime and adding polymer near fluid diversion line to produce remaining oil.Prediction research is done by numerical simulation for the method.It is indicated from results that,after injecting polymer solution with normal concentration of 640mg/L·PV,additional polymer solution with concentration of 300mg/L·PV is injected through conversion wells.Thus recovery rate is increased by 4.21%,which has an obvious effect.

关键词(KeyWords): 聚驱;后续水驱;挖掘;分流线;剩余油
polymer flooding;Subsequent Water Flooding Stage after Post-polymer flooding;fluid diversion line;remaining oil

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作者(Author): 高淑玲,邵振波,张景存
GAO Shu-ling,et al.(Exploration and Development Research Institute of Daqing Oil Field Company Ltd.,Daqing 163712

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