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| 川西北部地区下二叠统茅口组油苗地球化学特征及油源研究 | |
| 引用本文： | 黄东,刘全洲,杨跃明,戴赟,戴鑫.川西北部地区下二叠统茅口组油苗地球化学特征及油源研究[J].石油实验地质,2011,33(6):617-623. |
| 作者姓名： | 黄东 刘全洲 杨跃明 戴赟 戴鑫 |
| 作者单位： | 1. 中国石油西南油气田公司勘探开发研究院,成都,610041 2. 中国石油吐哈油田公司开发部,新疆哈密,839009 3. 西南石油大学,四川新都,610500 |
| 基金项目： | 四川省高校天然气地质重点实验室基金项目(2006SZD044) |
| 摘 要： | 采用同位素、色谱—质谱、色谱等技术,系统分析了川西北部地区茅口组油苗的地球化学特征及油源.结果表明,川西北部长江沟茅口组油苗原油族组分碳同位素组成特征与飞仙关组油苗和天井山拌桶崖泥盆系油砂岩存在明显差别,而与茅口组灰岩抽提物具有相似的组成特征,油苗色谱略呈驼峰,正构烷烃下降,低分子量的正构烷烃已完全消耗；生物标志化合物对比表明,茅口组油苗与茅口组自身灰岩具有极强的相似特征.根据烃源岩埋藏史和生烃史,认为茅口组油苗是茅口组烃源岩在印支期生烃高峰期的产物,后期随着燕山—喜山期运动的调整遭受了轻微的生物降解,从而形成了现今茅口组油苗的分布格局. |
| 关 键 词： | 油苗 地球化学特征 生物标志化合物 茅口组 下二叠统 川西北部 |
Geochemical characteristics of oil seepage and studies of oil source in Maokou Formation,Lower Permian,northwestern Sichuan |
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| Huang Dong , Liu Quanzhou , Yang Yueming , Dai Yun , Dai Xin.Geochemical characteristics of oil seepage and studies of oil source in Maokou Formation,Lower Permian,northwestern Sichuan[J].Petroleum Geology & Experiment,2011,33(6):617-623. | |
| Authors: | Huang Dong Liu Quanzhou Yang Yueming Dai Yun Dai Xin |
| Affiliation: | Huang Dong1,Liu Quanzhou2,Yang Yueming1,Dai Yun3,Dai Xin3(1.Exploration and Development Research Institute,Southwest Oil-Gas Field Company,PetroChina,Chengdu,Sichuan 610041,China,2.Development Department of Tuha Oilfield Company,Hami,Xinjiang 839009,3.Southwest Petroleum University,Xindu,Sichuan 610500,China) |
| Abstract: | Oil seepages and sources in Maokou Formation of the northwestern Sichuan Basin were analyzed with isotope,chromatograph-mass spectrum and chromatograph techniques.The carbon isotopic characteristics of oil seepages in Maokou Formation of Changjianggou region of the northwestern Sichuan Basin are different from those of oil seepages in Feixianguan Formation and oil sands in Devonian of Bantongya of Tianjingshan region,and are similar with those of extracts from limestones in Maokou Formation.Oil seepage chro... |
| Keywords: | oil seepage biochemical characteristics biomarker Maokou Formation Lower Permian northwestern Sichuan Basin |
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