| 鄂尔多斯盆地下古生界储层气气源探讨 |
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| 引用本文： | 汪正江,许效松.鄂尔多斯盆地下古生界储层气气源探讨[J].沉积与特提斯地质,2003,23(4):84-90. |
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| 作者姓名： | 汪正江 许效松 |
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| 作者单位： | 成都地质矿产研究所,四川,成都,610082 |
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| 基金项目： | 中国西部大中型沉积盆地分析及油气资源远景研究(200113000071)。 |
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| 摘 要： | 鄂尔多斯盆地下古生界天然气勘探的制约因素是有效烃源岩的问题。笔者通过对鄂尔多斯盆地早古生代的沉积构造演化、沉积环境、生烃潜力、本溪组砂体展布特征与中央大气田藕合关系、上古生界天然气向下穿层运移条件、地球化学等方面的综合分析，指出中央大气田的气源主要来自上古生界的煤系地层及本溪组和太原组中的海相烃源岩，并在此基础上指出下古生界天然气勘探的方针和下一步有利勘探选区。
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| 关 键 词： | 鄂尔多斯盆地 下古生界 天然气勘探 沉积环境 石炭—二叠系煤系烃源岩 |
| 文章编号： | 1009-3850(2003)04-0084-07 |
| 收稿时间： | 2003/7/16 0:00:00 |
| 修稿时间： | 2003年7月16日 |
An approach to the gas sources in the Lower Palaeozoic reservoir rocks in the Ordos Basin |
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| WANG Zheng-jiang,XU Xiao-song.An approach to the gas sources in the Lower Palaeozoic reservoir rocks in the Ordos Basin[J].Sedimentary Geology and Tethyan Geology,2003,23(4):84-90. |
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| Authors: | WANG Zheng-jiang XU Xiao-song |
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| Institution: | Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, Sichuan, China |
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| Abstract: | In the Ordos Basin, the major controlling factor for the Early Palaeozoic gas exploration is whether (effective) source rocks are developed. The authors contend, on the basis of sedimentary-tectonic evolution, sedimentary environments, and hydrocarbon-generating potential of the Early Palaeozoic strata as well as the (coupling) relations of sandstone distribution and central gas field, downward migraton of the Upper Palaeozoic gas and geochemical signatures, that the gas sources of the central gas field are derived from the Upper Palaeozoic coal measures and marine source rocks in the Benxi and Taiyuan Formations. |
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| Keywords: | Ordos Basin Lower Palaeozoic gas exploration sedimentary environment source rocks in the Carboniferous-Permian coal measures |
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