| 川西坳陷中段须家河组天然气地球化学特征与气源追踪 |
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| 引用本文： | 沈忠民,潘中亮,吕正祥,刘四兵,王玲辉.川西坳陷中段须家河组天然气地球化学特征与气源追踪[J].成都理工大学学报(自然科学版),2009,36(3). |
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| 作者姓名： | 沈忠民 潘中亮 吕正祥 刘四兵 王玲辉 |
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| 作者单位： | 1. 油气藏地质及开发工程国家重点实验室;成都理工大学,成都,610059
2. 中国石化西南石油分公司,成都,610081 |
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| 基金项目： | 国家重点实验室与中国石化西南分公司勘探开发研究院合作项目 |
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| 摘 要： | 川西坳陷中段上三叠统须家河组天然气组成、碳同位素、天然气轻烃的地球化学特征及气源追踪研究表明:须家河组天然气不含H2S,属于典型的煤成气.其中川西坳陷整体表现为须二天然气以自生自储为主,不排除下部小塘子组和马鞍塘组源岩对其有一定贡献.须四上亚段天然气也以自生自储为主,在有断达深部的断裂发育地区可能有下部(如须二)天然气窜层运移至该层,须四下亚段天然气主要来自须三段.须五段天然气则主要为自生自储为主.
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| 关 键 词： | 川西坳陷 须家河组 天然气 碳同位素 轻烃 |
The geochemical characteristics of natural gas and the gas-sources tracing of Xujiahe Formation in the middle member of West Sichuan depression |
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| SHEN Zhong-min,PAN Zhong-liang,LU Zheng-xiang,LIU Si-bing,WANG Ling-hui.The geochemical characteristics of natural gas and the gas-sources tracing of Xujiahe Formation in the middle member of West Sichuan depression[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2009,36(3). |
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| Authors: | SHEN Zhong-min PAN Zhong-liang LU Zheng-xiang LIU Si-bing WANG Ling-hui |
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| Institution: | SHEN Zhong-min1,PAN Zhong-liang1,LU Zheng-xiang2,LIU Si-bing1,WANG Ling-hui21.State Key Laboratory of Oil , Gas Reservoir Geology , Exploitation,Chengdu University of Technology,Chengdu 610059,China,2.Southwest Petroleum Company of SINOPEC,Chengdu 610081 |
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| Abstract: | This paper researches the gas-sources tracing and the geochemical characteristics of the natural gas composition,carbon isotope,light-hydrocarbon and so on.The results show that the natural gas comes from the Upper Triassic Xujiahe Formation(T3x) in the middle member of West Sichuan depression and does not contain H2S belongs to a typical coal-formed gas.Most of the natural gas in T3x2 is self-generating and self-preserving,and some of it originates from the Xiaotangzi Formation and Ma'antang Formation.The ... |
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| Keywords: | West Sichuan depression Xujiahe Formation natural gas carbon isotope light hydrocarbon |
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