| 辽西金羊盆地北票组一类新的油砂地球化学特征及意义 |
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| 引用本文： | 孙鹏,唐友军,张坤.辽西金羊盆地北票组一类新的油砂地球化学特征及意义[J].地质与资源,2020,29(4):335-341. |
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| 作者姓名： | 孙鹏 唐友军 张坤 |
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| 作者单位： | 长江大学 资源与环境学院, 湖北 武汉 430100 |
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| 基金项目： | 中国地质调查局项目“松辽外围南部盆地群油气基础地质调查”（DD20160167）；“冀北-辽西中新元古界油气地质调查”（DD20190098）；“松辽盆地核心目标区页岩油参数获取”（DD20160163）． |
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| 摘 要： | 金羊盆地章吉营子凹陷西缘的SZK04井北票组发现了油气显示，有机地球化学分析结果显示该类油砂具有姥植比低、藿烷系列化合物丰富、伽马蜡烷含量较高、甾烷系列化合物缺失且碳同位素较轻的特征.综合生物标志化合物及组分碳同位素认为，SZK04井油砂应为海相还原环境沉积的烃源岩贡献，且有机质的来源应以细菌输入为主.结合本区地质背景，认为该类海相油砂可能来自中新元古界烃源岩，这为金羊盆地乃至辽西地区的中新元古界油气勘探提供了依据.
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| 关 键 词： | 金羊盆地 北票组 SZK04井 油砂 生物标志化合物 辽宁省 |
| 收稿时间： | 2020-04-15 |
A NEW TYPE OF OIL SANDS IN THE BEIPIAO FORMATION OF JINYANG BASIN,WESTERN LIAONING PROVINCE: Geochemical Characteristics and Geological Implication |
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| SUN Peng,TANG You-jun,ZHANG Kun.A NEW TYPE OF OIL SANDS IN THE BEIPIAO FORMATION OF JINYANG BASIN,WESTERN LIAONING PROVINCE: Geochemical Characteristics and Geological Implication[J].Geology and Resources,2020,29(4):335-341. |
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| Authors: | SUN Peng TANG You-jun ZHANG Kun |
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| Institution: | School of Resource and environment, Yangtze University, Wuhan 430100, China |
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| Abstract: | The occurrence of oil and gas is discovered in the Beipiao Formation of SZK04 well located on the western margin of Zhangjiyingzi Sag in Jinyang Basin. The organic geochemical analysis results show that such oil sands are characterized by low pristane-phytane ratio, abundant hopane compounds, high gammacerane content, deficiency of sterane compounds and light carbon isotopes. Combined with the biomarker compounds and carbon isotope values, it is believed that the source rocks deposited in marine reduction environment should contribute to the oil sands of SZK04 well, with the organic matter mainly from bacterial input. Considering the geological background of the area, it is concluded that the type of marine oil sands may come from the MesovNeoproterozoic source rocks, which provides a basis for the Meso-Neoproterozoic oilvgas exploration in Jinyang Basin and even the western Liaoning Province. |
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| Keywords: | Jinyang Baisn Beipiao Formation SZK04 well oil sand biomarker compound Liaoning Province |
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