| 塔北-塔中地区三叠系层序地层格架及生储盖组合特征 |
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| 引用本文： | 祝贺,刘家铎,田景春,孟万斌,曾海燕,杨永剑.塔北-塔中地区三叠系层序地层格架及生储盖组合特征[J].油气地质与采收率,2011,18(3). |
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| 作者姓名： | 祝贺 刘家铎 田景春 孟万斌 曾海燕 杨永剑 |
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| 作者单位： | 成都理工大学,油气藏地质及开发工程国家重点实验室,四川,成都,610059 |
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| 摘 要： | 运用层序地层学的原理和方法,结合钻井、测井以及地震等资料的综合分析,确定了塔北-塔中地区三叠系层序界面的类型可通过地震反射特征和测井标志来识别.三叠纪沉积演化经历了4次周期长、规模大的湖侵和湖退,存在4个较明显的湖泛面,可识别出5个层序界面,据此将三叠系划分为2个二级层序和4个三级层序.在单井层序划分和连井剖面对比的基础上建立了塔北-塔中地区三叠系的层序地层格架,分析认为SQ1,SQ2,SQ3和SQ4层序均可识别出LST,TST和HST.LSl以发育扇三角洲及辫状河三角洲相砂砾岩为主;TST多以滨浅湖亚相泥岩和粉砂岩为主;HST则主要为浅湖、半深湖-深湖亚相暗色泥岩.对层序格架中的生、储、盖组合特征进行了分析,三叠系构成了4套明显的生储盖组合关系,并从宏观上控制了塔北-塔中地区三叠系油气的分布.
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| 关 键 词： | 三叠系 层序界面 层序地层格架 生储盖组合 塔北-塔中地区 |
Analysis of sequence stratigraphy framework of Triassic in Taboi-Tazhong area of Tarim Basin and source reservoir-caprock assemblage |
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| Zhu He,State Key Laboratory of Oil , Gas Reservoir Geology , Exploitation,Chengdu University of Technology,Cheng- du City,China Liu Jiaduo,Tian Jingchun et al..Analysis of sequence stratigraphy framework of Triassic in Taboi-Tazhong area of Tarim Basin and source reservoir-caprock assemblage[J].Petroleum Geology and Recovery Efficiency,2011,18(3). |
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| Authors: | Zhu He State Key Laboratory of Oil Gas Reservoir Geology Exploitation Chengdu University of Technology Cheng- du City China Liu Jiaduo Tian Jingchun |
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| Affiliation: | Zhu He,State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Cheng- du City,610059,China Liu Jiaduo,Tian Jingchun et al. |
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| Abstract: | By means of theory and method of sequence stratigraphy, and analysis of mud well-logging, and associated with the analysis of seismic data,the sequence boundary marks are determined in Tabei-Tazhong area. The sequence boundary marks are determined by well logs and seismic data. The sedimentary environment evolution experienced four large scale lake level changes and four MFS can be identified. Base on the five stratigraphic sequences boundary recognized, the Triassic is divided into two tectonic sequence an... |
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| Keywords: | Triassic sequence surface sequence stratigraphic framework source-reservoir-caprock assemblage Tabei- Tazhong area |
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