| 珠三坳陷烃源岩及油源研究再认识 |
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| 引用本文： | 傅宁,李友川,孙建新,孙玉梅,徐建永.珠三坳陷烃源岩及油源研究再认识[J].现代地质,2011,25(6):1121-1130. |
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| 作者姓名： | 傅宁 李友川 孙建新 孙玉梅 徐建永 |
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| 作者单位： | 1. 中海石油研究总院,北京,100027
2. 长庆油田采油五厂,陕两西安,710021 |
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| 摘 要： | 为进一步加强珠三坳陷的勘探研究,应用色质、同位素、轻烃等地球化学分析方法,重新取样分析了珠三坳陷37个原油样品和40个岩石样品,根据新分析的资料对珠三坳陷烃源岩和油源再次进行综合对比研究,取得了新的认识。研究结果表明:珠三坳陷文昌B凹陷主力烃源岩是文昌组中深湖相烃源岩,而不是文昌组滨浅湖相烃源岩,文昌A凹陷主力烃源岩则是湖沼相的恩平组烃源岩;文昌B凹陷的WC19-1和WC19-2构造原油的主要贡献者是文昌组中深湖相烃源岩;文昌A凹陷的WC9-1、WC9-2、WC9-3、WC14-3、WC11-2构造原油主要贡献者是恩平组烃源岩;琼海凸起西区(WC13-1、WC13-2、QH18-1、QH23-1构造)原油主要源自文昌B凹陷文昌组中深湖相烃源岩;琼海凸起东区(WC19-6N、WC7-2、WC7-3、WC8-3构造)原油则主要源于文昌A凹陷恩平组烃源岩;珠三坳陷主要经历了两期油气充填。
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| 关 键 词： | 珠三坳陷 烃源岩 原油特征 油源 油气运移 |
Recognition of Oil Source and Source Rocks in Zhu Ⅲ Depression |
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| FU Ning,LI You-chuan,SUN Jian-xin,SUN Yu-mei,XU Jian-yong.Recognition of Oil Source and Source Rocks in Zhu Ⅲ Depression[J].Geoscience——Journal of Graduate School,China University of Geosciences,2011,25(6):1121-1130. |
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| Authors: | FU Ning LI You-chuan SUN Jian-xin SUN Yu-mei XU Jian-yong |
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| Institution: | FU Ning1,LI You-chuan1,SUN Jian-xin2,SUN Yu-mei1,XU Jian-yong1(1.Research Institute,China National Offshore Oil Corporation,Beijng 100027,China,2.Fifth Oil Production Plant of Changqing Oilfield,Xi'an,Shaanxi 710021,China) |
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| Abstract: | Thirty-seven crude oil samples and forty rock samples were analyzed by geochemistry analysis methods of GC-MS,carbon isotopic and light weight hydrocarbons for the further exploration research of Zhu Ⅲ depression.Based on the results,comprehensive comparison between oil source and hydrocarbon source rocks was done again and new cognition was gained.The results showed that the deep lacustrine facies source rock of Wenchang Formation is the major source rock of Wenchang B sag in Zhu Ⅲ depression,rather than the shore-shallow lacustrine facies source rock;and the swamp facies source rock of Enping Formation is the major source rock of Wenchang A sag in Zhu Ⅲ depression.The main contributions of the crude oil were deep lacustrine facies source rock of Wenchang Formation in Wenchang B sag(Structure WC19-1 and WC19-2),swamp facies source rock of Enping Formation in Wenchang A sag(Structure WC9-1,WC9-2,WC9-3,WC14-3,WC11-2).The crude oil in west Qionghai uplift(Structure WC13-1、WC13-2、QH18-1、QH23-1) primarily came from the deep lacustrine facies rocks of Wenchang Formation in Wenchang B sag,while that in east Qionghai uplift(Structure WC19-6N、WC7-2、WC7-3、WC8-3) mainly came from source rocks of Enping Formation in Wenchang A sag.Two episodes of hydrocarbon filling had taken place in the study area. |
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| Keywords: | Zhu Ⅲ depression source rock feature of crude oil oil source hydrocarbon migration |
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