大庆外围油田采收率评价方法Recovery factor evaluation of Daqing peripheral oilfields
王树立,兰丽凤,冮明立
WANG Shu-li1,2,LAN Li-feng1
摘要(Abstract)：
大庆外围油田经过二十多年开发,规模不断扩大,目前年产量已超过500万吨。由于采取滚动开发模式,油田绝大部分区块处于开发初期,该阶段动态资料较少,静态资料比较丰富,适用的方法主要是经验公式法。针对大庆外围油田开采层位的地质特征、流体性质的差异,从影响采收率的主要因素入手,采用多元线性回归的方法,建立了适用于萨、葡油层和扶杨油层采收率经验公式,并给出了计算实例。
The scales of Daqing peripheral oilfields have been keeping increasing continuously since the area being put into production and development more than 20 years ago,at present,the annual production of this area has exceeded 5 million ton.Rolling development mode is adopted in this area,which means that most parts of the area are still at early development stage,with less dynamic data and more static data,the proper method for this area is empirical formula method.Considering main influential factors on recovery factors,geologic features and fluid property differentials of the targeted horizons in the area,multiple linear regression method is adopted,meanwhile,empirical formulas that is fit for the recovery factors of Saertu reservoir,Putaohua reservoir and Fuyang reservoir are set up,in addition,with illustrations by computation examples.
关键词(KeyWords)：
采收率;经验公式;多元线性回归
recovery factor;empirical formula;multiple linear regressions
基金项目(Foundation):
作者(Author):
王树立,兰丽凤,冮明立
WANG Shu-li1,2,LAN Li-feng1