扶余油田基于单因素解析多因素耦合的剩余油预测  

Application of the single factor analysis and multifactor coupling method to the remaining oil prediction in Fuyu oilfield

作　　者：封从军[1] 鲍志东[1] 陈炳春[2] 魏兆胜[2] 汪莹[1] 

机构地区：[1]中国石油大学油气资源与探测国家重点实验室,北京102249 [2]中国石油吉林油田公司,吉林松原138000

出　　处：《石油学报》2012年第3期465-471,共7页Acta Petrolei Sinica

基　　金：国家重大科技专项(2008ZX05030-005-01)资助

摘　　要：扶余油田泉四段主力油层为典型的湖盆三角洲沉积,经过30多年的开采,已进入高含水采油阶段,受单砂体切叠、储层非均质性、储层构型等因素的控制,剩余油呈现总体分散、局部集中的特征。依据地质、测井、生产动态等资料,采用"单因素解析多因素耦合"的研究思路,深入解剖了微构造、断层、沉积微相、单砂体切叠、储层构型、储层非均质性、井网部署、注采关系等因素对湖盆三角洲储层内部剩余油形成与分布的控制机理,优选关键控制因素,建立由关键因素耦合控制的剩余油预测模式,形成了一套系统的三角洲储层剩余油预测的分析方法,总结了5种受多因素耦合控制的剩余油预测模式,为老油田高含水期剩余油挖潜工作提供了新的研究思路。The K1q4 major oil layer in the Fuyu oilfield is a typical lake-delta deposit and it has been in a high water-cut stage after the exploitation for over 30 years.The K1q4 remaining oil is characterized by a generally dispersed but locally concentrated distribution due to various influential factors,such as cutting and overlying by single sand body,reservoir heterogeneity and reservoir architectures.Based on geology,logging and production performance data,we followed a ＂single-factor analysis and multifactor coupling＂ idea to thoroughly examine various influential factors,such as micro-structures,faults,sedimentary microfacies,cutting and overlying by single sand body,reservoir architectures,reservoir heterogeneity,well pattern allocation and injection-production correlation,and to investigate controlling mechanisms of these factors on the formation and distribution of remaining oils within lake-delta reservoirs.Moreover,some remaining-oil prediction models influenced cooperatively by optimized key controlling factors were established and five such models were discussed by applying a suit of systematical analysis methods to the prediction of remaining-oils within lake-delta reservoirs,which provides some new research ideas for recovering remaining oils at the high water-cut stage in old oilfields.

关 键 词：单因素 微构造 沉积微相 单砂体 储层构型 剩余油 

分 类 号：TE112[石油与天然气工程—油气勘探]