断层两盘岩性配置关系及断层的封闭性  

Relation of cross-fault lithology juxtaposition and fault sealing

作　　者：赵密福[1] 李阳[2] 张煜[2] 王端平[2] 

机构地区：[1]胜利油田有限公司东辛采油厂,山东东营257094 [2]胜利油田有限公司,山东东营257000

出　　处：《中国石油大学学报（自然科学版）》2006年第1期7-11,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：'十五'中国石油化工集团公司科技攻关项目(P01035)

摘　　要：断层一般不是一个简单的面,而是由一系列破裂面或次级断层组成的带,这与断层两盘岩性配置原理的假设有很大的差别。依据断层特征,分断层面和断裂带2种类型讨论了岩性的配置关系,进一步结合断层两盘的岩性、排驱压力及断距,划分了12种岩性配置模式。对营32断层岩性配置关系的研究发现,不同砂层组的岩性配置有很大差异,其中1砂层组岩性配置最好,8砂层组岩性配置最差,这导致纵向上断层不同部位封闭程度有很大不同。沿断层走向,从北向南断层的断距逐渐变小,这必然增加了同一储层的砂岩在断层两侧相配置的概率,岩性配置由北向南变差,因此营32断层两侧的剩余油挖潜应侧重于断层的北段。A fault is not a simple plane, but a belt composed by a series of breaking planes or secondary faults, which is con tradict with the hypothesis of the theory of cross-fault lithology juxtaposition. According to the characteristics of faults, the relation of lithology juxtaposition was discussed by two types of fault plane and fault belt, furthermore, twelve models were divided according to the cross-fault lithology, displacement pressure and fault throw. The researched rdation of lithology juxtaposition of Ying 32 fault shows that lithology juxtaposition is diversity in different sand groups, and the lithology juxta. position of sand groups of i is the best one and sand groups of 8 is the worst one, which induce different sealing degree of faults. Along the strike of Ying 32 fault, fault throw is gradually small from north to south, the probability of cross-fault lithology juxtaposition increases for the same reservoirs and lithology juxtaposition becomes poor. The remaining oil tapping of both sides of Ying 32 fault should be particular emphasis on the north of fault.

关 键 词：营32断层 岩性配置 断层封闭性 断距 岩性组合 

分 类 号：P542.32[天文地球—构造地质学]