| 莺歌海盆地中新统海相烃源岩发育主控因素及模式 |
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| 引用本文： | 徐建永,赵牛斌,徐仕琨,赵新伟.莺歌海盆地中新统海相烃源岩发育主控因素及模式[J].地质科技通报,2021,40(2):54-63. |
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| 作者姓名： | 徐建永 赵牛斌 徐仕琨 赵新伟 |
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| 作者单位： | 中海油研究总院有限责任公司;中国地质大学（武汉）构造与油气资源教育部重点实验室 |
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| 基金项目： | 国家科技重大专项2016ZX05024-002-003国家科技重大专项2017ZX05032-001-004 |
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| 摘 要： | 中新统海相烃源岩是中国近海莺歌海盆地主要油气供给层段,也是我国新生代海相烃源岩的典型代表。综合利用地质、地球化学和古生物等资料,在烃源岩有机地球化学特征分析的基础上,探讨了莺歌海盆地中新统海相烃源岩发育的主控因素,并建立了相应的形成模式。结果表明,莺歌海盆地发育中等-好级别的中新统海相烃源岩,并具有较强的横向与纵向非均质性;中新统海相烃源岩受古气候、古生产力、水介质条件、沉积速率及海平面变化等因素的综合影响,发育以莺东斜坡带梅山组、三亚组为代表的海相陆源型和以东方区、乐东区梅山组为代表的海相内源型2种模式,其中以海相内源型烃源岩生烃条件最为优越。
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| 关 键 词： | 中新统 海相烃源岩 主控因素 海相内源型 海相陆源型 莺歌海盆地 |
| 收稿时间： | 2020-07-01 |
Main controlling factors and development model of the Miocene marine source rocks in Yinggehai Basin |
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| Xu Jianyong,Zhao Niubin,Xu Shikun,Zhao Xinwei.Main controlling factors and development model of the Miocene marine source rocks in Yinggehai Basin[J].Bulletin of Geological Science and Technology,2021,40(2):54-63. |
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| Authors: | Xu Jianyong Zhao Niubin Xu Shikun Zhao Xinwei |
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| Affiliation: | (CNOOC Research Institute Ltd.,Beijing 100028,China;Key Laboratory of Tectonics and Petroleum Resources,Ministry of Education,China University of Geosciences(Wuhan),Wuhan 430074,China) |
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| Abstract: | The Miocene marine source rock is the main oil and gas supplier of the Yinggehai Basin and the typical representative of the Cenozoic marine source rocks in China.Based on comprehensive analysis of geological, geochemical and paleontological data and the study of the geochemical characteristics of the source rocks, the paper discusses the main controlling factors and establishes models of the development of the Miocene marine source rocks in Yinggehai Basin.The results show that medium-good Miocene marine source rocks are developed with strong lateral and vertical heterogeneity in Yinggehai Basin.And the Miocene marine source rocks in Yinggehai Basin are influenced by paleoclimate, paleoproductivity, water medium conditions, sedimentation rate and sea level changes.Two models of the type of marine terrestrial source represented by Meishan Formation and Sanya Formation in Yingdong slope belt and the type of marine endogenous type represented by Meishan Formation in Dongfang area and Ledong area are developed, in contrast, the latter hydrocarbon generation conditions are more excellent. |
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| Keywords: | Miocene marine source rock main control factor type of marine endogenous type of marine terrestrial Yinggehai Basin |
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