| 鄂尔多斯盆地北部晚古生代物源体系及聚砂规律 |
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| 引用本文： | 陈安清,陈洪德,徐胜林,时国,张成弓.鄂尔多斯盆地北部晚古生代物源体系及聚砂规律[J].中国石油大学学报(自然科学版),2011(6):1-7. |
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| 作者姓名： | 陈安清 陈洪德 徐胜林 时国 张成弓 |
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| 作者单位： | 浙江大学海洋科学与工程学系;成都理工大学沉积地质研究院;东华理工大学地球科学学院; |
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| 基金项目： | 国家重大科技专项课题(NO.2008ZX050441-2); 国家自然科学基金青年基金项目(41002007) |
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| 摘 要： | 为了认识沉积充填与大面积成藏的关系,根据大量的野外露头和钻井资料,对鄂尔多斯盆地北部上古生界的物源体系和砂体发育特征进行研究。结果表明:本溪—太原期的陆表海阶段物源供给有限,小型潮控三角洲与大面积潮坪交错发育;山西—下石盒子期为陆内坳陷盆地形成发展期,物源供给充分,大型浅水三角洲在宽缓的斜坡上大面积聚砂;上石盒子期盆地进入成熟稳定阶段,坡降进一步降低,发育聚泥为主的网状河三角洲;在宽缓的古地貌背景下多河道浅水三角洲的频繁进退和侧向迁移,使多物源供砂、多水系输砂和缓斜坡聚砂组成的"源-输-汇"三元耦合聚砂系统形成了大面积立体网毯状砂体,为岩性-地层圈闭小而多、大面积分布奠定了基础,成就了鄂尔多斯盆地上古生界"满盆生气、到处含气、岩性控气"的富气规律。
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| 关 键 词： | 石油地质 岩性 物源分析 网毯式聚砂 沉积充填 浅水三角洲 鄂尔多斯盆地 |
Provenance and sandy accumulation regularity of Neopaleozoic in North Ordos Basin |
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| CHEN An-qing,CHEN Hong-de,XU Sheng-lin,SHI Guo,ZHANG Cheng-gong.Provenance and sandy accumulation regularity of Neopaleozoic in North Ordos Basin[J].Journal of China University of Petroleum,2011(6):1-7. |
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| Authors: | CHEN An-qing CHEN Hong-de XU Sheng-lin SHI Guo ZHANG Cheng-gong |
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| Institution: | CHEN An-qing1,2,CHEN Hong-de2,XU Sheng-lin2,SHI Guo3,ZHANG Cheng-gong2 (1.Department of Ocean Science and Engineering,Zhejiang University,Hangzhou 310058,China,2.Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,3.College of Earth Sciences,East China Institute of Technology,Fuzhou 344000,China) |
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| Abstract: | The Neopaleozoic lithostratigraphic hydrocarbon reservoir is a hot spot of exploration in Ordos Basin.In order to recognize the relationship between sedimentary filling and large-area reservoirs distribution,based on abundant data of outcrops and well-drillings,the characteristics of provenance and sand body of upper Paleozoic in north Ordos Basin were researched.The results show that during the period of Benxi and Taiyuan,clastics supply was inadequate,and the margin of epeiric sea was filled by small-size... |
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| Keywords: | petroleum geology lithology provenance netty-blanket sandy accumulation sedimentary filling shallow water delta Ordos Basin |
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