| 辽河东部凹陷天然气地球化学特征及深层天然气勘探潜力 |
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| 引用本文： | 单俊峰,韩霞,毛俊莉.辽河东部凹陷天然气地球化学特征及深层天然气勘探潜力[J].特种油气藏,2011,18(2):7-10,135. |
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| 作者姓名： | 单俊峰 韩霞 毛俊莉 |
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| 作者单位： | 1. 中国石油大学,北京,102249;中油辽河油田公司,辽宁盘锦,124010
2. 中油辽河油田公司,辽宁盘锦,124010 |
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| 摘 要： | 对辽河东部凹陷天然气地球化学特征及其判识标志、不同类型烃源岩生成气态烃的地球化学特征、气源岩进行研究,分析认为:目前发现的天然气以低成熟的煤型气为主,局部为成熟煤型气;经气源对比,煤型气源岩以s3为主;除煤型气外,局部存在油型气、原生生物气和原油茵解气等类型.利用δ13C-R.关系,结合东部凹陷成熟度-深度关系进行研究...
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| 关 键 词： | 天然气 煤型气 气源岩 东部凹陷 辽河坳陷 |
Gas geochemistry and deep gas exploration potential in Eastern Liaohe Depression |
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| SHAN Jun-feng,HAN Xia,MAO Jun-li.Gas geochemistry and deep gas exploration potential in Eastern Liaohe Depression[J].Special Oil & Gas Reservoirs,2011,18(2):7-10,135. |
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| Authors: | SHAN Jun-feng HAN Xia MAO Jun-li |
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| Affiliation: | SHAN Jun-feng1,2,HAN Xia2,MAO Jun-li2(1.China University of Petroleum,Beijing 102249,China,2.Liaohe Oilfield Company,PetroChina,Panjin,Liaoning 124010,China) |
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| Abstract: | The research on gas geochemistry,identification marker and gas source rock in Eastern Liaohe Depression indicates that currently discovered natural gas is mainly coal related gas of low maturity,with some local mature coal related gas;gas-source correlation shows that s3 is the dominant coal related gas source rock;except coal related gas,there are locally oil related gas,biogas and bacterial degradation gas,etc.Based onδ13C-Ro and the relationship of maturity and depth in this depression,the result shows that most of the gas currently discovered so far is deeper than 4 300 m,generated from shallow source with Ro less than 1.0%;highly mature gas generated from deep source rock(4 300～7 000 m) is only discovered in the deep Hongxing area with limited proved reserves,therefore it is presumed that there is big potential in deep gas exploration. |
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| Keywords: | natural gas coal related gas gas source rock Eastern Liaohe Depression Liaohe rift |
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