| 陆相细粒混合沉积分类、特征及发育模式——以东营凹陷为例 |
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| 引用本文： | 杜学斌,刘晓峰,陆永潮,刘惠民,张守鹏,马义权,赵珂,魏巍.陆相细粒混合沉积分类、特征及发育模式——以东营凹陷为例[J].石油学报,2020,41(11):1324-1333. |
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| 作者姓名： | 杜学斌 刘晓峰 陆永潮 刘惠民 张守鹏 马义权 赵珂 魏巍 |
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| 作者单位： | 1. 中国地质大学(武汉)海洋地质资源湖北省重点实验室 湖北武汉 430074;
2. 中国地质大学(武汉)构造与油气资源教育部重点实验室 湖北武汉 430074;
3. 中国石油化工股份有限公司胜利油田分公司勘探开发研究院 山东东营 257015 |
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| 基金项目： | 国家重点基础研究发展计划（973）项目（2014CB239102）和国家科技重大专项（2016ZX05034-002，2016ZX05060-004，2016ZX05027-001）资助。 |
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| 摘 要： | 细粒混合沉积是近年来的研究热点，目前对其研究还不够系统和深入。基于持续多年对东部陆相页岩的研究，重新定义了细粒混合沉积概念，综合钻井、录井、测井、岩心、薄片和X射线衍射分析等资料，按照岩相发育特征、砂/灰/泥比值、混积组构方式和沉积微相分带4项分类原则，提出陆相细粒混合沉积扇形分类方案，将细粒混合沉积划分为灰-泥二元混积、砂-泥二元混积和砂-灰-泥三元混积3种类型，并进一步细分为12个亚类。在此基础上，以东营凹陷为例，从点、线、面3个维度分析了陆相细粒混合沉积的发育特征和展布规律，提出细粒混积相带分布模式，认为细粒混积在平面上具有环带分布特征。并进一步分析了细粒沉积中的天文节律特征，认为其可以很好地反映细粒混合沉积中的旋回特征，对于混合沉积精细研究具有借鉴意义。
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| 关 键 词： | 混合沉积 陆相页岩 分类 天文节律 东营凹陷 |
| 收稿时间： | 2020-03-06 |
| 修稿时间： | 2020-09-29 |
Classification,characteristics and development models of continental fine-grained mixed sedimentation: a case study of Dongying sag |
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| Du Xuebin,Liu Xiaofeng,Lu Yongchao,Liu Huimin,Zhang Shoupeng,Ma Yiquan,Zhao Ke,Wei Wei.Classification,characteristics and development models of continental fine-grained mixed sedimentation: a case study of Dongying sag[J].Acta Petrolei Sinica,2020,41(11):1324-1333. |
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| Authors: | Du Xuebin Liu Xiaofeng Lu Yongchao Liu Huimin Zhang Shoupeng Ma Yiquan Zhao Ke Wei Wei |
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| Affiliation: | 1. Hubei Key Laboratory of Marine Geological Resources, China University of Geosciences, Hubei Wuhan 430074, China;
2. Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences, Hubei Wuhan 430074, China;
3. Research Institute of Exploration and Development, Sinopec Shengli Oilfield Company, Shandong Dongying 257015, China |
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| Abstract: | Fine-grained mixed sedimentation has been a research hotspot in recent years, and it requires systematic and deep research. Based on studying the eastern continental shale for many years, this paper redefines the concept of fine-grained mixed sedimentation. Based on the integrated data involving drilling, logging, mud logging, core, thin section and X-ray diffraction analysis, according to the four classification principles including development characteristics of lithofacies, sandstone/limestone/mud ratio, fabric mode of mixed sedimentation and sedimentary microfacies zoning, this paper proposes a new fan-shaped classification scheme for continental fine-grained mixed sedimentation, divides the fine-grained mixed sedimentation into limestone-shale binary mixed sedimentation, sandstone-shale binary mixed sedimentation and sandstone-limestone-shale ternary mixed sedimentation, and further subdivides them into 12 subcategories. On this basis, taking the Dongying sag as an example, this paper analyzes the development characteristics and distribution laws of continental fine-grained mixed sedimentation from the perspective of point, line and surface, puts forward a distribution model of fine-grained mixed sedimentation facies belts, and holds that the fine-grained mixed sedimentation has the characteristics of zonal distribution on the horizontal level. Furthermore, it analyzes the characteristics of astronomical rhythm of fine-grained sediments, and points out that they can well reflect the cycle characteristics of fine-grained mixed sediments, which has reference significance for the fine research of mixed sedimentation. |
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| Keywords: | mixed sedimentation terrestrial shale classification astronomical rhythm Dongying sag |
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