陆相断陷盆地深凹带沉积朵体特征——以高邮凹陷邵伯次凹戴南组为例  

Study on features of depositional lobes in the deep sag area of a continental faulted basin: taking Dainan Formation in Shaobo sub-sag,Gaoyou Sag as an example

作　　者：冷春鹏[1] 董桂玉[1] 张振国[1] 仇永峰[2] 毕天卓[2] 

机构地区：[1]河北联合大学矿业工程学院,河北唐山063009 [2]中国石油化工股份有限公司江苏油田分公司地质科学研究院,江苏扬州225009

出　　处：《西安石油大学学报（自然科学版）》2015年第1期14-22,29,共10页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：河北省自然科学基金(编号:D2013209045);河北省科技计划项目(编号:12274203)

摘　　要：以高分辨率层序地层学理论为指导,综合利用岩心、测井、地震和古生物等资料,结合邵伯次凹区域地质背景,对戴南组进行高分辨率层序地层划分,在此划分方案基础上对深凹带沉积特征进行了系统剖析,识别出扇三角洲、近岸水下冲积扇、湖底"扇"和辫状河三角洲4种沉积朵体,并对各自的亚(微)相特征进行了详细刻画,探讨演化规律,建立了深凹带沉积朵体的沉积模式,为研究区的下一步油气勘探开发提供有力的地质依据。Based on the core,logging,seismic and paleontological data and the geological background of Shaobo sub-sag,the sequence stratigraphy of Dainan Formation is divided using sequence stratigraphy theory as guidance. On the basis of the high-resolution stratigraphic sequence division,four types of depositional lobes,including fan delta,nearshore subaqueous alluvial fan,sublacustrine fan and braided river delta,are recognized by the systematical analysis of the depositional characteristics of Shaobo sub-sag,and their subfacies(microfacies) are characterized. The evolution features of the depositional lobes are studied and the sedimentary modes of the depositional lobes in Shaobo sub-sag are established. The study provides sufficient geological evidence for the future oil and gas exploration and development in this region.

关 键 词：沉积相 沉积演化 戴南组 邵伯次凹 

分 类 号：TE121[石油与天然气工程—油气勘探]