| 长岭断陷有机烃类气成因 |
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| 引用本文： | 杨光,张梦林,王建强. 长岭断陷有机烃类气成因[J]. 吉林大学学报(地球科学版), 2011, 0(Z1): 40-46 |
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| 作者姓名： | 杨光 张梦林 王建强 |
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| 作者单位： | 吉林大学地球科学学院; |
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| 基金项目： | 国家油气选区专项项目(XQ-2004-07) |
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| 摘 要： | 以长岭断陷的天然气组分和同位素地球化学实测数据为依据,对天然气进行了成因类型的划分。双坨子地区是以煤型气或煤型气为主与油型气的混合气;达尔罕地区为煤型气与无机烃类气的混合气;大老爷府地区为油型气;哈尔金地区为高成熟、过成熟的煤型气及与无机成因烃类气的混合气,还存在无机成因CO2气。该断陷天然气由于多源混合的原因,碳同位素系列呈现多种分配方式。对混合气比例的计算显示:有机成因混合气碳同位素发生倒转的原因是煤型气与油型气混合,且是以煤型气为主的混合气;无机与有机成因混合气的模拟计算显示:无机成因烃类气贡献比较大,最高达80.0%,且随着深度加深所占比例也在增加,而有机成因烃类气比例在减少。
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| 关 键 词： | 长岭断陷 天然气碳同位素 天然气成因 多源混合 地球化学 |
Origin of Deep-Seated Organic Hydrocarbon Gas in Changling Fault Depression |
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| YANG Guang,ZHANG Meng-lin,WANG Jian-qiang College of Earth Sciences,Jilin University,Changchun ,China. Origin of Deep-Seated Organic Hydrocarbon Gas in Changling Fault Depression[J]. Journal of Jilin Unviersity:Earth Science Edition, 2011, 0(Z1): 40-46 |
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| Authors: | YANG Guang ZHANG Meng-lin WANG Jian-qiang College of Earth Sciences Jilin University Changchun China |
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| Affiliation: | YANG Guang,ZHANG Meng-lin,WANG Jian-qiang College of Earth Sciences,Jilin University,Changchun 130061,China |
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| Abstract: | Genetic types of natural gas in Changling fault depression are identified based on gas component and isotopic characteristics.The gas in Shuangtuozi area are mainly coal-type gas or coal-type gas dominating mixture gas with oil-type gas;the gas in Daerhan area are mixture gas of coal-type gas with inorganic gas;the gas in Dalaoyefu area are mainly oil-type gas;the gas in Haerjin area are mainly high mature,overmature coal-type gas and inorganic origin CO2 gas.Carbon isotope displays different distribution m... |
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| Keywords: | Changling fault depression gas carbon isotope origin of natural gas multisource mixing geochemistry |
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