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琼东南盆地深水区陵水凹陷古近纪同沉积断裂对层序构成样式的控制
引用本文:宋广增,王华,孙志鹏,刘小龙,徐蒙,任金锋.琼东南盆地深水区陵水凹陷古近纪同沉积断裂对层序构成样式的控制[J].中国石油大学学报(自然科学版),2014(4):9-18.
作者姓名:宋广增  王华  孙志鹏  刘小龙  徐蒙  任金锋
作者单位:中国地质大学构造与油气资源教育部重点实验室;中国地质大学资源学院;中国海洋石油湛江分公司;中国海洋石油研究总院;山东省地质科学实验研究院;
基金项目:国家自然科学基金项目(41272122);国家“十二五”油气重大专项课题(2011ZX05009-002-02);“构造与油气资源”教育部重点实验室开放课题(TPR-2013-14);中国地质大学(武汉)教学实验室开放基金项目
摘    要:综合利用地质与地球物理资料,并根据断层组合样式及活动速率分析,对陵水凹陷古近系开展同沉积断裂对层序构成样式的控制性研究。结果表明:陵水凹陷西部、中部及东部识别出非对称地堑型、对称地堑型、半地堑型3种构造地层格架;由于断层活动性变化,陵水凹陷古近系发育上倾坡脚型断坡带、下倾坡脚型断坡带与弯折带3种构造古地貌背景,并分别控制3种沉积充填样式的发育;不同的沉积充填配置在不同的构造地层格架中组成了对储集体展布具有重要预测作用的层序构成样式,为深水区隐蔽油气藏的勘探提供基础。

关 键 词:深水区  同沉积断层  层序构成样式  构造地层格架  坡折带
收稿时间:2013/12/16 0:00:00

Paleogene sydepositional fault and its control on sequence architecture of Lingshui sag, deepwater area of Qiongdongnan Basin, South China Sea
SONG Guangzeng,WANG Hu,SUN Zhipeng,LIU Xiaolong,XU Meng and REN Jinfeng.Paleogene sydepositional fault and its control on sequence architecture of Lingshui sag, deepwater area of Qiongdongnan Basin, South China Sea[J].Journal of China University of Petroleum,2014(4):9-18.
Authors:SONG Guangzeng  WANG Hu  SUN Zhipeng  LIU Xiaolong  XU Meng and REN Jinfeng
Affiliation:SONG Guangzeng;WANG Hua;SUN Zhipeng;LIU Xiaolong;XU Meng;REN Jinfeng;Key Laboratory of Tectonics and Petroleum Resources,China University of Geosciences,Ministry of Education;Faculty of Earth Resources,China University of Geosciences;Zhanjiang Branch of CNOOC;Research Institute of China National Offshore Oil Corporation Limited;Shandong Institute and Laboratory of Geological Sciences;
Abstract:Based on geological and geophysical data, the Paleogene syndepositional fault and its control on sequence architecture of Lingshui sag were studied by analyzing the combination features and faulting-activity rate of the fault. The results show that three kinds of frameworks, i.e., asymmetric graben, symmetric graben and half-graben, were developed individually in the east, middle, and west of Lingshui sag. Three kinds of structural paleogeomorphologies, i.e., up-dip foot slope break belt, down-dip foot slope break belt and gentle slope-break belt, were developed in response to the changes of faulting-activity, which influenced the sequence-infill patterns. Different sequence-infill patterns distributing within tectono-stratigraphic frameworks have characteristic sequence architectures, which will favorably contribute to exploration of potential reservoirs and subtle oil pools in deepwater area.
Keywords:deepwater area  syndepositional faults  sequence architecture  tectono-stratigraphic framework  slope break belt
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