油气地质与采收率2017,Vol.24Issue(3):105-109,5.
埕岛油田馆陶组上段油藏合理产液量及注水量矢量优化方法
Vector optimization method for reasonable fluid production and water injection rate of reservoir in the Upper Guantao Formation, Chengdao oilfield
摘要
Abstract
Chengdao oilfield has entered middle-high water cut stage.Due to the influence of strong reservoir heterogeneity,uneven waterline rush,serious interference of production in multi-well groups and the imbalanced displacement of injected water in the underground directly affect the overall development effect of the reservoir.Therefore,a vector optinization method for reasonable liquid production and water injection rate was proposed.Concept of displacement breakthrough coefficient was established,and equilibrium displacement limit was determined to be 3.The actual reservoir displacement was divided into 4 modes.Reasonable fluid production and water injection rate of oil-and-water wells under different displacement modes was determined,and thus the goal of balanced reservoir displacement could be achieved.This method was applied to field liquid increase test in seven well groups of Chengbei 11N well block.By the end of December 2015,incremental cumulative oil was 2.7× 104 t,and recovery rate was increased by 5% in the evaluation period (15 a).关键词
合理产液量/注水量/驱替突破系数/矢量优化/馆陶组上段/埕岛油田Key words
reasonable fluid production/water injection rate/displacement breakthrough coefficient/vector optimization/Upper Guantao Formation/Chengdao oilfield分类
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刘敏..埕岛油田馆陶组上段油藏合理产液量及注水量矢量优化方法[J].油气地质与采收率,2017,24(3):105-109,5.基金项目
国家科技重大专项“特高含水后期整装油田延长经济寿命期开发技术”(2016ZX05011-001). (2016ZX05011-001)