摘要
针对大庆宋芳屯油田芳17区块目前井网的适应性差,应用理论和数值模拟方法,分析芳17区块井网调整对主要开发指标的影响,推导出考虑有效驱动因数的水驱采收率与注采井距关系式.结果表明:考虑有效驱动因数的水驱采收率与注采井距关系式,可快捷进行水驱采收率计算;反九点井网平均地层压力低于五点法井网的平均地层压力;井网加密后,采液指数提高;通过分析井网调整对地层压力、采油速度、递减率等开发指标的影响,表明五点法注水、对角线加密方式优于其他注水方式和加密方式.
In view of the fact that the adaptability evaluation of present well pattern in Fang 17 block is poor,the effect of well pattern regulation in Fang 17 block on the main development index is analyzed through theoretical and numerical simulation means,and the relationship between water displacement recovery and injector producer distance considering effective driving coefficient is derived.The results indicate that the water displacement recovery is easily calculated through previous relationship,the average reservoir pressure of inverse nine-spot well network is lower than that of five-spot well network,and the fluid productivity index is increased after well pattern is encrypted.The effect of well network regulating on formation pressure,oil production rate and declining rate is analyzed,we conclude that the production method of five-spot water flooding and diagonal crowding is much more effective than using other methods.
出处
《大庆石油学院学报》
CAS
北大核心
2009年第2期116-120,共5页
Journal of Daqing Petroleum Institute
基金
国家自然科学基金项目(50634020)
关键词
宋芳屯油田
水驱控制程度
地层压力
采液指数
注采井距
有效动用因数
水驱采收率
采油速度
递减率
Songfangtun oil field
flooding controlled degree
formation pressure
fluid productivity index
injector producer distance
valid producing coefficient
water displacement recovery
oil production rate
declining rate
作者简介
宋国亮（1977-）,男，硕士，讲师，主要从事井网最优化方面的研究．
