湖泊三角洲沉积露头精细解剖——以鄂尔多斯盆地裴庄剖面为例

赵俊峰; 屈红军; 林晋炎; 刘祥; 杨扬; 林川

湖泊三角洲沉积露头精细解剖——以鄂尔多斯盆地裴庄剖面为例

1.
西北大学大陆动力学国家重点实验室/西北大学地质学系西安 710069;
2.
中国石油华北油田分公司河北任丘 062552

基金项目: 国家自然科学基金(批准号:41330315、J1030517)与西北大学大陆动力学国家重点实验室科技部专项经费项目(编号:BJ12146、BJ081334)联合资助

详细信息

作者简介:
赵俊峰男 1975年出生博士副教授沉积学与盆地分析 E-mail: zjf@nwu.edu.cn

中图分类号: TE121.3

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Outcrop-based Anatomy of a Lacustrine Delta Succession: A case study from Peizhuang Section, Ordos Basin

1.
State Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi'an 710069;
2.
Huabei Oilfield Company, Petroleum China, Renqiu, Hebei 062552

摘要

摘要: 客观、精细刻画储集体内部结构已成为油气精细勘探开发的必然要求.沉积露头为地下储层地质模型的建立发挥着不可替代的作用.以鄂尔多斯盆地裴庄剖面延安组为例,采用沉积学和构型要素的分析方法,详细剖析了湖泊三角洲水下沉积的内部结构.研究表明,裴庄剖面发育9种岩相类型,3类岩相组合,进而可识别出前三角洲、席状砂、远砂坝、河口坝、水下分流河道、水下分流间湾等6类沉积结构单元.在水下分流河道中可识别出5级界面.研究认为,浅水三角洲前缘的砂体并非仅有水下分流河道,还有河口坝、远砂坝以及席状砂等多种类型.裴庄剖面总体为一套向上变粗的沉积序列,三角洲前缘的前积结构表现不明显.加强露头研究并开展针对性的物理模拟实验,是解答浅水三角洲研究争论的重要途径.
- 露头 /
- 岩相类型 /
- 沉积构型 /
- 沉积界面 /
- 浅水三角洲 /
- 延安组 /
- 鄂尔多斯盆地
Abstract: With the further exploration and production of hydrocarbon resources, objective and detailed anatomy for internal architecture of reservoir bodies is becoming the necessary approach to improve the efficiency of development. Outcrop based sedimentary section plays an irreplaceable role in building geological model of underground reservoir. Taking the Yan'an Formation developed in Yan'an area of the Ordos Basin as an example, the internal architecture of a subaqueous sedimentary succession in lacustrine deltaic environment was anatomized, employing the research thoughts of sedimentology and architecture elements. According to this study, 9 lithotypes, 3 kinds of litho associations are identified in Peizhuang section. Furthermore, 6 kinds of sedimentary architecture elements such as prodelta, sheet sandstone, distal sandstone, mouth bar, subaqueous distributary channel, subaqueous distributary bay are identified as a result. Five hierarchy bounding surfaces are also recognized in the subaqueous distributary channel succession. It's suggested that not only subaqueous distributary channel, but also mouth bar, distal bar, sheet bar and so on are developed in delta front of so-called shallow-water delta. Generally, there is an upward coarsening succession in the studied section, while the progressive architecture of delta front is difficult to be recognized in outcrop scale. In consideration of the controversy about shallow-water delta, we suggest that enhancing outcrop-based study and particular physical modeling should be the key solutions.
- outcrop /
- lithofacies type /
- sedimentary architecture /
- bounding surface hierarchy /
- shallow-water delta /
- Yan'an Formation /
- Ordos Basin

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参考文献(25)

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湖泊三角洲沉积露头精细解剖——以鄂尔多斯盆地裴庄剖面为例

作者简介:
赵俊峰男 1975年出生博士副教授沉积学与盆地分析 E-mail: zjf@nwu.edu.cn

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Outcrop-based Anatomy of a Lacustrine Delta Succession: A case study from Peizhuang Section, Ordos Basin

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湖泊三角洲沉积露头精细解剖——以鄂尔多斯盆地裴庄剖面为例

1. 西北大学大陆动力学国家重点实验室/西北大学地质学系西安 710069;

2. 中国石油华北油田分公司河北任丘 062552

作者简介:
赵俊峰男 1975年出生博士副教授沉积学与盆地分析 E-mail: zjf@nwu.edu.cn

English Abstract

Outcrop-based Anatomy of a Lacustrine Delta Succession: A case study from Peizhuang Section, Ordos Basin

1. State Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi'an 710069;

2. Huabei Oilfield Company, Petroleum China, Renqiu, Hebei 062552

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湖泊三角洲沉积露头精细解剖——以鄂尔多斯盆地裴庄剖面为例

作者简介: 赵俊峰 男 1975年出生 博士 副教授 沉积学与盆地分析 E-mail: zjf@nwu.edu.cn

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Outcrop-based Anatomy of a Lacustrine Delta Succession: A case study from Peizhuang Section, Ordos Basin

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出版历程

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湖泊三角洲沉积露头精细解剖——以鄂尔多斯盆地裴庄剖面为例

1. 西北大学大陆动力学国家重点实验室/西北大学地质学系 西安 710069; 2. 中国石油华北油田分公司 河北任丘 062552

作者简介: 赵俊峰 男 1975年出生 博士 副教授 沉积学与盆地分析 E-mail: zjf@nwu.edu.cn

English Abstract

Outcrop-based Anatomy of a Lacustrine Delta Succession: A case study from Peizhuang Section, Ordos Basin

1. State Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi'an 710069; 2. Huabei Oilfield Company, Petroleum China, Renqiu, Hebei 062552

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作者简介:
赵俊峰男 1975年出生博士副教授沉积学与盆地分析 E-mail: zjf@nwu.edu.cn

1. 西北大学大陆动力学国家重点实验室/西北大学地质学系西安 710069;

2. 中国石油华北油田分公司河北任丘 062552

作者简介:
赵俊峰男 1975年出生博士副教授沉积学与盆地分析 E-mail: zjf@nwu.edu.cn

1. State Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi'an 710069;

2. Huabei Oilfield Company, Petroleum China, Renqiu, Hebei 062552