| 松南营城组火山岩气藏成藏模式 |
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| 引用本文： | 刘伟,沈阿平.松南营城组火山岩气藏成藏模式[J].东华理工大学学报（自然科学版）,2011(1):75-80. |
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| 作者姓名： | 刘伟 沈阿平 |
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| 作者单位： | 中国石油化工股份有限公司华东分公司 |
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| 摘 要： | 松南气田营城组火山岩天然气的δ13C1值大于-30‰,具有δ13C1＞δ13C2＞δ13C3负序列或同位素倒转,甲烷同位素偏重,表明松南气田营城组火山岩天然气不仅具有煤型气与油型气混合特性,还具有多期次成藏特征,煤型气充注早,为89～83 Ma;油型气和幔源气充注晚,为78～68 Ma.松南气田营城组天然气中无机气体主...
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| 关 键 词： | 火山岩 煤幔混合成因 二次充注 松南气田 |
Accumulation Model of Songnan Yingcheng Volcanic Gas Reservoir |
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| LIU Wei,SHEN A-ping.Accumulation Model of Songnan Yingcheng Volcanic Gas Reservoir[J].Journal of East China Institute of Technology(Natural Science Edition),2011(1):75-80. |
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| Authors: | LIU Wei SHEN A-ping |
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| Institution: | (East China Branch of SINOPEC,Nanjing,JS 210019,China) |
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| Abstract: | The δ13C1 value of natural gas of the volcanic reservoir in Yingcheng group,Songnan gas field is more than-30 ‰ with a negative sequence that is δ13C1>δ13C2> δ13C3 or isotopes inversion and more weight methane isotope.It indicates that the natural gas of volcanic reservoir not only has the coal-type gas and oil-type gas mixing characteristics,also has a multi-period accumulation characteristic in Yingcheng group,Songnan gas field.The coal-type gas that is 89~83 Ma is filled earlier than mantle-derived gas that is 78~68 Ma.The natural gas in Yingcheng group,Songnan gas field mainly has two inorganic gas:CO2 and N2.The isotope of CO2 gas shows the genesis of CO2 gas has a typical "Coal-Mantle" dual characteristic. |
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| Keywords: | volcanic rock coal-mantle hybrid origin secondary filling Songnan gas field |
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