| 松辽盆地深层煤型气的地球化学特征 |
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| 引用本文： | 窦立荣. 松辽盆地深层煤型气的地球化学特征[J]. 石油天然气学报, 1990, 12(3): 9-14 |
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| 作者姓名： | 窦立荣 |
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| 作者单位： | 石油勘探开发科学研究院 87届石油地质专业毕业生 |
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| 摘 要： | 松辽盆地是一个富含油气的大型陆相沉积盆地,其古气候以温暖潮湿为主,晚侏罗世断陷型煤系地层发育,煤系所含的有机质以腐殖型为主,埋藏深度大,处于高成熟-过成熟阶段,是天然气的主要来源。深层煤型气以甲烷含量高、重烃含量低、氦气和汞含量高、甲烷碳同位素重为特征,是典型的煤型气气源对比表明。天然气来自侏罗纪煤系地层。深层煤型气是本区主要勘探对象。
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| 关 键 词： | 盆地 煤型气 地球化学 热演化 |
Geochemical Characteristics of Deep-seated Coal-type Gas in Songliao Basin |
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| Dou Lirong. Geochemical Characteristics of Deep-seated Coal-type Gas in Songliao Basin[J]. Journal of Oil and Gas Technology, 1990, 12(3): 9-14 |
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| Authors: | Dou Lirong |
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| Affiliation: | Research Institute of Petroleum Exploration and Devolopment |
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| Abstract: | Songliao Basin is a great continental sedimentary basin rich in oil and gas. In the Jurassic rifting stage, coal measure strata were developed well. The humic organic matters are high-over mature due to its greatly buried depth, which laid a foundation for the formation of coal-type gas. The gas is characterized by high content of CH_4 He and Hg, as well as heavy carbon isotope of methane. Comparion of gas source shows that the gas in deep layer is from Jurassic coal measure strata. Now the coal-type gas is a main exploration objective in the lower and deep zones in Songliao Basin. |
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| Keywords: | organic chemistry evolution(organic) Jurassic coal measures natural gas coal-type gas correlation Songliao basin |
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