| 鄂尔多斯盆地天环坳陷南段侏罗系原油油源分析 |
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| 引用本文： | 赵彦德,刘显阳,张雪峰,张忠义,李程善,齐亚林. 鄂尔多斯盆地天环坳陷南段侏罗系原油油源分析[J]. 现代地质, 2011, 25(1): 85-93 |
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| 作者姓名： | 赵彦德 刘显阳 张雪峰 张忠义 李程善 齐亚林 |
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| 作者单位： | 1. 中国石油长庆油田分公司勘探开发研究院,陕西西安710018;兰州大学资源环境学院,甘肃兰州730000
2. 中国石油长庆油田分公司勘探开发研究院,陕西西安,710018 |
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| 基金项目： | 国家科技重大专项项目(2008ZX05044) |
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| 摘 要： | 天环坳陷南段位于鄂尔多斯盆地西南部,跨西缘冲断带和天环坳陷两个构造单元,地质条件复杂。近年来针对该区侏罗系低幅度构造岩性油藏的勘探取得了重大突破,钻遇多口工业高产油流,但目前对侏罗系油气的来源问题仍存在不同的认识,制约了勘探的进一步深入。应用色谱/质谱和碳同位素等分析方法和手段,对侏罗系原油与三叠系延长组长4+5段、长6段和长7段3套烃源岩从生物标志化合物、碳同位素等方面进行对比研究,并结合侏罗系油气成藏特征,探讨了侏罗系原油的油源。结果表明:天环坳陷南段侏罗系原油和长6段、长7段烃源岩在母源性质、沉积环境、成熟度等方面具有相近似的特征,二者具有较好的亲缘关系;区域性不整合面、裂缝成为沟通侏罗系储层与长6段、长7段油源的运移通道;侏罗系原油主要来源于长6段和长7段烃源岩。
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| 关 键 词： | 油源分析 侏罗系原油 天环坳陷 鄂尔多斯盆地 |
Oil Sources Analysis of the Jurassic Crude Oil in the Southern Tianhuan Depression,Ordos Basin |
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| ZHAO Yan-de,LIU Xian-yang,ZHANG Xue-feng,ZHANG Zhong-yi,LI Cheng-shan,QI Ya-lin. Oil Sources Analysis of the Jurassic Crude Oil in the Southern Tianhuan Depression,Ordos Basin[J]. Geoscience of Geosciences, 2011, 25(1): 85-93 |
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| Authors: | ZHAO Yan-de LIU Xian-yang ZHANG Xue-feng ZHANG Zhong-yi LI Cheng-shan QI Ya-lin |
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| Affiliation: | ZHAO Yan-de1,2,LIU Xian-yang1,ZHANG Xue-feng1,ZHANG Zhong-yi1,LI Cheng-shan1,QI Ya-lin1(1.Changqing Oilfieid Company,CNPC,Xi'an,Shaanxi 710018,China,2.College of Earth and Environmental Sciences,Lanzhou University,Lanzhou,Gansu 730000,China) |
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| Abstract: | The southern Tianhuan Depression is located in the southwest of the Ordos Basin,stretching across both of the west thrust belt and the Tianhuan Depression with complex geological conditions.In recent years,the exploration of the Jurassic low-amplitude structural-lithologic reservoirs has gained a great breakthrough with several high productive oil-flow wells found in this region.However,there are some different points of view about the resources of the Jurassic oil and gas,which has constrained the further ... |
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| Keywords: | oil sources analysis Jurassic crude oil Tianhuan Depression Ordos Basin |
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