| 西北侏罗纪盆地沉积层序演化与储层特征 |
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| 引用本文： | 吴因业,罗平.西北侏罗纪盆地沉积层序演化与储层特征[J].地质论评,1998,44(1):90-99. |
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| 作者姓名： | 吴因业 罗平 |
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| 作者单位： | 中国石油天然气总公司石油勘探开发科学研究院，中国石油天然气总公司石油勘探开发科学研究院，中国石油天然气总公司石油勘探开发科学研究院，中国石油天然气总公司石油勘探开发科学研究院 北京，100083，北京，100083，北京，100083，北京，100083 |
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| 摘 要： | 笔者研究了西北侏罗纪盆地沉积层序及储层特征，根据露头观察，井下实钻资料及实验室内分析结果，提出中，下侏罗统主要为湖沼相含煤碎屑岩沉积，主要发育河流中冲积相及三角洲相的砂岩集集体，上统为红色或杂色碎屑岩，侏罗纪计导氏孔低渗为主的富含火山岩屑的碎屑岩，局部可发育较好砂岩储层，侏罗系本身可构成妨好的生储盖组合。
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| 关 键 词： | 侏罗纪 沉积层序 储集层 油气藏 油气地质 盆地 |
Evolution of Depositional Sequences and Reservoir Features of Jurassic Basins in Northwestern China |
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| Wu Yinye,Luo Ping,Tang Xianghua and Yang Yongtai.Evolution of Depositional Sequences and Reservoir Features of Jurassic Basins in Northwestern China[J].Geological Review,1998,44(1):90-99. |
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| Authors: | Wu Yinye Luo Ping Tang Xianghua and Yang Yongtai |
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| Abstract: | The authors have studied depositional sequences and reservoir features of Jurassic basins in Northwestern China, and on the basis of outcrop observations, drill data and laboratory analysis, it is proposed that the Lower and Middle Jurassic consist dominantly of lacustrine and swamp coal-bearing clastic rocks, in which there are fluvial and deltaic sandstone reservoirs;the Upper Jurassic is represented by red and/or variegated clastic deposits. The Jurassic reservoirs are marked by mainly low-porosity and low-permeability clastic rocks with rich volcanic debris, and locally good sandstone reservoirs are developed. There is a good association of source rocks, reservoir rocks and cap rocks in the Jurassic itself. |
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| Keywords: | Jurassic reservoir depositional sequence Northwestern China |
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