古河道储层构型层次分析法——以孤岛油田馆陶组曲流河为例  

Hierarchy analysis in paleochannel reservoir architecture:A case study of meandering river reservoir of Guantao Formation,Gudao Oilfield

作　　者：岳大力[1,2] 王军[3] 王延忠[3] 吴胜和[1,2] 刘建民[3] 束青林[3] 

机构地区：[1]中国石油大学(北京)油气资源与探测国家重点实验室,北京102249 [2]中国石油大学(北京)地球科学学院,北京102249 [3]中国石化胜利油田有限公司,山东东营257000

出　　处：《地质科学》2010年第3期832-843,共12页Chinese Journal of Geology(Scientia Geologica Sinica)

基　　金：国家自然科学基金项目"复合曲流带储层内部构型与剩余油分布模式研究"(编号:4092035);国家科技重大专项课题"海上开发地震技术及应用研究"(编号:2008ZX05024-001);"高温高盐油藏精细三维地质建模及开发优化调控技术"(编号:2008ZX05011-003)联合资助

摘　　要：以胜利油区孤岛油田11J11密井网区曲流河储层为例,在曲流河野外露头和现代沉积原型模型研究成果的基础上,应用岩心、测井及动态等资料,探索了一套曲流河地下储层构型分析方法。在基于构型分析的精细等时地层对比及单井构型要素解释的基础上,采用"层次分析"和"模式拟合"的研究思路,按复合曲流带、单一曲流带、单一点坝以及点坝内部侧积体的4个层次进行模式拟合,对曲流河各级次构型单元内部结构进行系统分析。拟合结果既符合曲流河沉积成因理论,又与研究区动态资料吻合,说明研究成果是可靠的,由此建立了真正意义上的三维储层构型模型,再现了曲流河点坝内部泥质侧积层空间分布特征,为分析油田开发后期储层构型控制的剩余油分布规律提供了科学依据,该方法对类似油田精细储层研究有较好的借鉴作用,并能推广应用。Taking 11J11 dense drilling zone, Gudao Oilfield, Shengli petroleum province as a ease, according to core,well logging and performance data, eombining outcrop and modern deposition study on meandering river, the systemic analyzing method of subsurface reservoir architecture of the meandering river is established. On the basis of accurate sequence frame and architecture elements interpretation in single well, the method of hierarchy analysis and model fitting is applied in architecture anatomy, four architecture hierarchies, composite meander belt, single meander belt, single point bar and lateral accretion sandbody are identified and anatomized. Research results are accorded with sedimentary pattern of the meandering river and performance data in the study area, indicating this method is reasonable. Three-dimensional reservoir architecture model is set up precisely,spatial characteristics of lateral accretion shale beddings in point bar are exhibited,which are scientific reasons for remaining oil distribution controlled by reservoir architecture. The application effects of this method in Gudao Oilfield are good and can be used in other similar oilfields.

关 键 词：非均质性 储层构型 曲流河 侧积体 孤岛油田 

分 类 号：TE122[石油与天然气工程—油气勘探]