高分辨率层序地层洪泛面研究——以鄂尔多斯盆地东南部延长组为例  

A Study of the Flooding Surface in the High Resolution Stratigraphic Sequence with an Example from Yanchang Formation in Southeastern Ordos Basin

作　　者：徐小龙 王楠棣 郭杰[3] Xu Xiaolong;Wang Nandi;Guo Jie(Rizhao Institute of Science and Technology Information,Rizhao 276800,China;Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China;PetroChina Planning &Engineering Institute,Beijing 100083,China)

机构地区：[1]日照市科学技术情报研究所,山东日照276800 [2]成都理工大学沉积地质研究院,四川成都610059 [3]中国石油规划总院,北京100083

出　　处：《湖南科技大学学报（自然科学版）》2018年第4期26-33,共8页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：国家自然科学重点基金资助项目(91114203)

摘　　要：针对鄂尔多斯盆地南部富黄探区延长组洪泛面类型及与生储盖组合关系的问题,运用高分辨率层序地层学原理,结合异旋回控制基准面旋回变化的分析,对延长组洪泛面分布类型、识别特征和延长组洪泛面与生储盖组合的关系进行研究.研究表明:盆地在延长组沉积期经历了一个完整似"反余弦"式基准面升降变化过程,其洪泛面划分为5种组合类型;不同期洪泛面物质表现不同;洪泛期内沉积的细粒沉积成为延长组主力烃源岩层系,对隐蔽油气藏预测有较好的指导意义.The Yanchang formation in Fuhuang exploration area was taken as an example to study the types of flooding surface,and the relationship between flooding surface and source-reservoir-cap assemblage,By using the concept of high resolution sequence stratigraphy and by combining the analysis of allo-cycle controlling on base-level cycles.The results show that in the deposition of Yanchang the basin experienced a complete "inverse cosine" base level cycle changes process during the sedimentary period of Yanchang Formation.According to the sedimentary facies sequence,the flooding surface is divided into five combination types,there are 5 combination types of flooding surface and material expression of the flooding surface shows different.It has different material expressions in different periods of flooding surface.The fine sediment deposited during flooding period is the main source rock series of Yanchang formation,the study has an important guiding significance for the prediction of subtle reservoirs.

关 键 词：洪泛面 高分辨率层序 延长组 生储盖组合 鄂尔多斯盆地 

分 类 号：TE122.2[石油与天然气工程—油气勘探]