| 珠江口盆地的扩张旋回及其与含油气性的关系 |
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| 引用本文： | 刘昭蜀,赵岩,李希宗,贺忠林.珠江口盆地的扩张旋回及其与含油气性的关系[J].热带海洋学报,1995(3). |
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| 作者姓名： | 刘昭蜀 赵岩 李希宗 贺忠林 |
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| 作者单位： | 中国科学院南海海洋研究所,中国海洋石油南海东部公司 |
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| 摘 要： | 根据“陆缘扩张”观点,扩张型陆缘演化阶段的三个构造旋回与珠江口盆地的油气生成和聚集密切相关。第一扩张旋回中形成的始新统文昌组泥岩是珠江口盆地的主要烃源岩。由文昌组排出的油气,经运移上升至第三扩张旋回中形成的中中新统韩江组泥岩盖层之下。运移过程中,油气主要进入由第二扩张旋回中形成的上渐新统珠海组和下中新统珠江组为储层的有利圈闭中。因此,珠江组和珠海组是珠江口盆地的重要目的层,而“拗中隆”及生物礁－滩则是钻探的主要对象。
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| 关 键 词： | 陆缘扩张 含油气性 珠江口盆地 |
SPREADING CYCLE AND RELATION TO THE HYDRoCARBON POTENTIAL OF ZHUJIANG RIVER MOUTH BASIN |
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| Liu Zhaoshu,Zhao Yan.SPREADING CYCLE AND RELATION TO THE HYDRoCARBON POTENTIAL OF ZHUJIANG RIVER MOUTH BASIN[J].Journal of Tropical Oceanography,1995(3). |
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| Authors: | Liu Zhaoshu Zhao Yan |
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| Abstract: | he three tectonic cycles of spreading continental margin evolutionary period are closely related to the gas and oil genesis and concentration in the Zhujiang River Mouth Basin, based on the point of view of"continental margin spreading".The first spreading cycle resulted in the formation of Wenchang mudstone, Eocene,which is the important and main source rock of the basin.After migrating,the hydrocarbon that was excluded from the mudstone went up to the layer beneath the covering of Hanjiang mudstone, Middle Miocene, which was formed during the third cycle.During migration, the oil and gas have mainly gone into those advantageous traps where reservoirs are of Zhuhai Formation and Zhujiang Formation,formed during the second spreading cycle. So both formations are important target layers for exploration, and the heights within sags and the massive bioreef-banks are the main targets for drilling. |
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| Keywords: | continental margin spreading hydrocarbon potential Zhujiang River Mouth Basin |
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