| 辽河盆地西部凹陷古近系沙四上亚段沉积相及演化 |
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| 引用本文： | 王夏斌,姜在兴,胡光义,范廷恩,王俊辉,卢欢.辽河盆地西部凹陷古近系沙四上亚段沉积相及演化[J].吉林大学学报(地球科学版),2019,49(5):1222-1234. |
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| 作者姓名： | 王夏斌 姜在兴 胡光义 范廷恩 王俊辉 卢欢 |
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| 作者单位： | 1. 中海油研究总院有限责任公司, 北京 100028;2. 中国地质大学(北京) 能源学院, 北京 100083;3. 中国石油大学(北京) 地球科学学院, 北京 102249;4. 中海油(有限)公司天津分公司, 天津 300459 |
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| 基金项目： | 国家科技重大专项（2017ZX05009-002） |
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| 摘 要： | 薄互层砂体研究是湖盆沉积学的研究难点。本文针对辽河西部凹陷沙四上亚段（Es4上）薄互层砂体，以层序地层学、沉积学、测井地质学等理论为指导，综合岩心、测录井和地震等多种资料，对西部凹陷的薄互层砂体进行精细描述和深入剖析。结果表明，研究区主要发育辫状河三角洲和湖泊沉积相，其中，滩坝砂体是湖泊相的主力砂体。通过考虑不同沉积背景下滩坝在岩相组合、发育位置和成因机理的差异性，将滩坝划分成侧缘改造型滩坝、前缘改造型滩坝、基岩改造型滩坝、淹没改造型滩坝和风暴改造型滩坝5种沉积模式；对薄层滩坝砂体的控制因素进行分析，认为其受到"风场-物源-盆地"三端元的控制。
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| 关 键 词： | 辽河西部凹陷 沙四上亚段 滩坝 沉积相 |
| 收稿时间： | 2018-04-13 |
Sedimentary Facies and Evolution of Upper Fourth Member of Paleogene Shahejie Formation in Western Sag of Liaohe Basin |
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| Wang Xiabin,Jiang Zaixing,Hu Guangyi,Fan Ting'en,Wang Junhui,Lu Huan.Sedimentary Facies and Evolution of Upper Fourth Member of Paleogene Shahejie Formation in Western Sag of Liaohe Basin[J].Journal of Jilin Unviersity:Earth Science Edition,2019,49(5):1222-1234. |
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| Authors: | Wang Xiabin Jiang Zaixing Hu Guangyi Fan Ting'en Wang Junhui Lu Huan |
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| Institution: | 1. Research Institute Co., Ltd., CNOOC, Beijing 100028, China;2. School of Energy Resources, China University of Geosciences, Beijing 100083;3. College of Geosciences, China University of Petroleum, Beijing 102249, China;4. China Limited Tianjin Branch, CNOOC, Tianjin 300459, China |
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| Abstract: | The thin interbedded sand body is a difficult point in the study of lacustrine sedimentology. Based on the Fourth Member of the upper Shahejie Formation (Es4) in the Western sag of Liaohe basin, the theory of sequence stratigraphy, sedimentology and logging geology, the thin interbedded sand bodies are described and analyzed integrated with core, logging and seismic data. It is considered that the braided delta and lacustrine sedimentary facies are mainly developed in the study area, among which the beach bar is the main sand body. The beach bar can be divided into five different parts based on their different sedimentary genetic characteristics:the lateral reformed beach bar, the front reformed beach bar, the bedrock reformed beach bar, the flooded reformed beach bar,and the tempestite reformed beach bar. Through analysis of the control factors of the thin beach bar sand bodies,they are controlled by "wind field-source-basin". |
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| Keywords: | Western sag of Liaohe basin upper fourth member of Shahejie Formation beach bar sedimentary facies |
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