| M盆地烃源岩有机显微组分特征与生烃潜力初探 |
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| 引用本文： | 罗小平,单献国,张同周,许书堂.M盆地烃源岩有机显微组分特征与生烃潜力初探[J].西安石油大学学报(自然科学版),1998(4). |
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| 作者姓名： | 罗小平 单献国 张同周 许书堂 |
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| 作者单位： | 中原石油勘探局勘探开发科学研究院 |
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| 摘 要： | Ｍ盆地烃源岩主要分布于下白垩统ＡｂｕＧａｂｒａ组，为一套半深湖－深湖的沉积建造，主要生油岩为深灰色、灰黑色泥页岩．其中的原油具有高蜡、低硫和低气油比的特征．通过对烃源岩地球化学特征和烃源岩有机显微组分特征研究证实，该套烃源岩主要生油组分为陆源有机质经细菌降解形成的腐殖无定形，其次为壳质组；生油能力较弱的镜质组和惰质组含量较低．对主要烃源岩模拟生烃特征进行了研究，结果表明：这种有机质油气转换系数较大，并具有“两期生油”的特征，第一个生油高峰对应的模拟温度为３４５℃，第二个生油高峰为４２５℃，产生的油气具有生油量大、生气量小的特点．
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| 关 键 词： | 显微结构，特征，有机质，烃源岩，生烃潜力 |
Discussion on the Characteristics of Organic Macerals and the Hydrocarbon generating Potential of the Source Rock in M Basin |
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| Luo Xiaoping et al.Discussion on the Characteristics of Organic Macerals and the Hydrocarbon generating Potential of the Source Rock in M Basin[J].Journal of Xian Shiyou University,1998(4). |
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| Authors: | Luo Xiaoping |
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| Abstract: | The hydrocarbon source rock in M Basin mainly distributes in lower Cretaceous Abu Gabra formation.The oil source rock is mainly dark grey shales.The crude oil in the basin are of high wax content,low sulfur content and low ratio of gas to oil.The analysis of organic macerals shows that among oil generating compositions,sapropel occupies first,exinite takes second place,and the contents of vitrinites and inertinites are less.Two oil generating peaks occur in hydrocarbon generating simulation of main hydrocarbon source rock,and the temperatures corresponding to the two peaks are 345℃ and 425℃ respectively.The simulation result shows that the source rock has high oil incidence factor and low gas generating yield. |
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| Keywords: | microstructure feature organic matter hydrocarbon source rock hydrocarbon generating potential |
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