| 四川威远震旦系与下古生界天然气成藏特征 |
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| 引用本文： | 孙玮,刘树根,王国芝,徐国盛,罗志立,韩克猷,袁海锋,黄文明.四川威远震旦系与下古生界天然气成藏特征[J].成都理工大学学报(自然科学版),2010,37(5):481-489. |
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| 作者姓名： | 孙玮 刘树根 王国芝 徐国盛 罗志立 韩克猷 袁海锋 黄文明 |
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| 作者单位： | 成都理工大学地球科学学院,成都,610059;"油气藏地质及开发工程"国家重点实验室,成都,610059;中国石油西南分公司勘探开发研究院,成都,610051 |
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| 基金项目： | 国家重点基础研究发展计划"973"项目，"矿物学、岩石学、矿床学"国家重点(培育)学科建设基金资助项目 |
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| 摘 要： | 四川盆地威远气田是唯一的在震旦系灯影组、寒武系洗象池组和奥陶系宝塔组均获得气藏和气井的地区.通过对比威远气田震旦系、寒武系和奥陶系天然气成分特征,得出奥陶系天然气与震旦-寒武系特征存在差异,暗示是两套不同的烃源体系,前者主要供烃来源是下志留统,后者供烃来源主要是下寒武统.但威远气田寒武系和奥陶系储集性能先天不好,加之加里东期构造抬升剥蚀破坏了保存条件,制约了天然气的大规模成藏.在此基础上,通过对四川盆地下组合的几个重点勘探地区威远-资阳-安平店、高石梯-丁山构造震旦系天然气成藏条件的对比分析,在烃源、盖层和储集层条件相似的情况下对应的最终成藏结果却不同,这与前期古油气藏的分布有关,也与后期隆升构造调整有关,这些都是制约震旦系的成藏关键,也说明四川盆地震旦系与下古生界(下组合)勘探的苛刻性和复杂性.
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| 关 键 词： | 天然气成藏 威远气田 震旦系 下古生界 四川盆地 |
Characteristics of gas formatted from Sinian to Lower Paleozoic in Weiyuan area of Sichuan Basin, China |
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| SUN Wei,LIU Shu-gen,WANG Guo-zhi,XU Guo-sheng,LUO Zhi-li,HAN Ke-you,YUAN Hai-feng,HUANG Wen-ming.Characteristics of gas formatted from Sinian to Lower Paleozoic in Weiyuan area of Sichuan Basin, China[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2010,37(5):481-489. |
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| Authors: | SUN Wei LIU Shu-gen WANG Guo-zhi XU Guo-sheng LUO Zhi-li HAN Ke-you YUAN Hai-feng HUANG Wen-ming |
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| Institution: | SUN Wei,LIU Shu-gen,WANG Guo-zhi,XU Guo-sheng,LUO Zhi-li,HAN Ke-you,YUAN Hai-feng,HUANG Wen-ming 1.College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China,2.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,3.Exploration &Production Research Institute,Southwestern Oil &Gas Field Branch Company of CNPC,Chengdu 610051 |
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| Abstract: | The Weiyuan gas field in Sichuan Basin is the only place,where the gas pools and gas wells were found in Dengying Formation of Sinian and Baota Formation of Ordovician.By comparing the components of the natural gas from Sinian,Cambrian and Ordovician in the Weiyuan gas field,the paper finds that there are differences between the natural gas from Sinian-Cambrian and that from Ordovician,and also reveals that there are two different resource rock systems.The main resource of the former is the resource rock of... |
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| Keywords: | gas accumulation Weiyuan gas field Sinian Lower Paleozoic Sichuan Basin |
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