| 小型箕状断陷盆地构造—沉积模式与油气成藏——以苏北管镇次凹为例 |
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| 引用本文： | 傅学斌.小型箕状断陷盆地构造—沉积模式与油气成藏——以苏北管镇次凹为例[J].地质科技情报,2009,28(2). |
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| 作者姓名： | 傅学斌 |
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| 作者单位： | 中国石油天然气股份有限公司冀东油田勘探开发研究院,河北,唐山,063004 |
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| 摘 要： | 管镇次凹位于苏北盆地洪泽凹陷中部,是一个典型的箕状断陷,由南向北可划分为4个构造带:陡岸带、深凹带、断裂构造带和缓坡带.识别出5种沉积体系,即曲流河三角洲沉积体系、滨浅湖沉积体系、半深湖-深湖沉积体系、冲积扇(扇三角洲)沉积体系、水下扇沉积体系;在缓坡带发育三角洲沉积体系,深凹带发育湖相沉积体系,陡坡带发育冲积扇(扇三角洲)-水下扇沉积体系.研究区主要目的层存在2种沉积体系组合:水下扇-半深湖(深湖)-曲流河三角洲沉积体系组合和冲积扇(扇三角洲)-滨浅湖-小型三角洲沉积体系组合;阜宁组沉积时期,第1种沉积体系组合模式下更有利于烃源岩的发育;戴南组沉积时期,第2种沉积体系组合模式下容易形成一定规模的低水位扇(扇三角洲).因此在这2种沉积体系组合的有机配置下,极有利于岩性油气藏的形成.
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| 关 键 词： | 箕状断陷 构造-沉积模式 沉积体系 沉积体系组合 油气成藏 管镇次凹 |
The Structure-Sedimentation Model and Reservoir Forming of Little Half-Graben Basin:A Case Study of Guanzhen Subsag in Northern Jiangsu Basin |
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| FU Xue-bin.The Structure-Sedimentation Model and Reservoir Forming of Little Half-Graben Basin:A Case Study of Guanzhen Subsag in Northern Jiangsu Basin[J].Geological Science and Technology Information,2009,28(2). |
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| Authors: | FU Xue-bin |
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| Institution: | Jidong Oilfield Exploitation Research Institute;PetroChina;Tangshan Hebei 063004;China |
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| Abstract: | Guanzhen subsag is a half-graben basin,located in the middle of Hongze sag in northern Jiangsu Basin.From south to north,it consists of four structure zones: abrupt slope zone,deep sag zone,fault zone and gentle gradient zone.In it,there are five sedimentary systems: meandering stream's delta,shore shallow lake,deep lake,alluvial fan(fan delta) and subaqurous fan.The meandering stream's delta sedimentary system is located in gentle gradient zone,the deep lake sedimentary system,in deep sag zone and the allu... |
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| Keywords: | half-graben basin structure-sedimentary model sedimentary system integrated pattern of sedimentary system subtle reservoir Guanzhen Subsag |
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