断层纵向输导与储层非均质性耦合控运模拟实验研究  

An Experimental Study of Oil Migration Controlled by Vertical Conduction of Faults and Reservoir Heterogeneity

作　　者：郭凯[1,2] 曾溅辉[1,2] 卢学军 崔周旗 师玉雷 

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]中国石油大学地球科学学院,北京102249 [3]中国石油华北油田勘探开发研究院,河北任丘062552

出　　处：《现代地质》2010年第6期1164-1170,共7页Geoscience

基　　金：国家科技重大专项课题(2009ZX05009-003)

摘　　要：在物理模拟实验的基础上探讨了断层输导能力与储层非均质性对油沿断层垂向运移和侧向分流的控制机理与模式。研究结果表明,断层输导能力与储层非均质性对油运移的控制本质上表现为"物性"(断层与储层渗透率比值)与"动力"对油垂向运移和侧向分流的耦合控制作用。两者对油的运移和纵向分布的耦合控制作用可概括为强输导能力断层-反韵律储层控运、弱输导能力断层-反韵律储层控运和强输导能力断层-正韵律储层控运3种模式。第一种模式中,油沿断层垂向运移的过程中不易侧向分流,油主要富集在直接位于区域性盖层之下的储层中;第二种模式中,油沿断层垂向运移的过程中较易侧向分流,油在纵向上各储层中均有一定的富集;第三种模式中,油沿断层垂向运移的过程中极易侧向分流,油大多富集在下部物性最好的储层中。Based on physical simulation experiments,the impacts of conduction capacity of faults and reservoir heterogeneity on the mechanism and patterns of the vertical migration and lateral diversion of oil along faults are researched.The results reveal that the control of conduction capacity of faults and reservoir heterogeneity to oil migration essentially is the coupling control of physical properties（ratios of faults＇ permeability to reservoirs＇ permeability） and charging forces to the vertical migration and lateral diversion of oil.Three patterns,which are controlled by fault with high conduction capacity and reservoirs of inverted rhythm,fault with low conduction capacity and reservoirs of inverted rhythm,or fault with high conduction capacity and reservoirs of positive rhythm,can summarize the coupling control of the two elements to oil migration and distribution.In the first pattern,lateral diversion can hardly occur as the oil migrates vertically along the fault,and oil mostly accumulates in the reservoir beneath the cap rock.In the second pattern,lateral diversion can occur easily as the oil migrates vertically along the fault,and every reservoir can assemble some oil.In the third pattern,lateral diversion can occur more easily as the oil migrates vertically along the fault,and oil mostly accumulates in the lower reservoir with best physical property.

关 键 词：石油运移 模拟实验 断层输导能力 储层非均质性 侧向分流 

分 类 号：TE122[石油与天然气工程—油气勘探]