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天然气地球科学

• 天然气地质学 • 上一篇    下一篇

辫状河砂体构型及定量参数研究——以阜康、柳林和延安地区辫状河露头为例

金振奎，杨有星，尚建林，王林生   

  1. 1.中国石油大学(北京)地球科学学院,北京 102249;
    2.中国地质调查局油气资源调查中心,北京 100029;
    3.新疆油田百口泉采油厂,新疆 克拉玛依 834000
  • 收稿日期:2013-06-06 修回日期:2013-09-09 出版日期:2014-03-10 发布日期:2014-03-10
  • 通讯作者: 金振奎jinzhenkui@188.com E-mail:jinzhenkui@188.com
  • 作者简介:金振奎(1963-)，男，山东潍坊人，教授，主要从事沉积学、储层地质学和层序地层学方面的研究. E-mail:jinzhenkui@188.com.
  • 基金资助:

    国家科技重大专项项目“典型沉积环境露头解剖和密井网条件下河道内部构型定量表征技术”(编号:2008ZX05010)资助.

Sandbody Architecture and Quantitative Parameters of Single Channel Sandbodies of Braided River:Cases from Outcrops of Braided River in Fukang,Liulin and Yanan Areas

JIN Zhen-kui，YANG You-xing，SHANG Jian-lin，WANG Lin-sheng   

  1. 1．College of Geosciences,China University of Petroleum,Beijing 102249,China;
     2．Oil and Gas Survey,China Geology Survey,Beijing 100029,China;
    3.Baichongqi Oil Production Plant,Xinjiang Oilfield Company,CNPC,Karamay 834000,China
  • Received:2013-06-06 Revised:2013-09-09 Online:2014-03-10 Published:2014-03-10

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摘要：

根据山西柳林、陕西延安和延长以及新疆阜康等地二叠系、三叠系、侏罗系野外露头，对辫状河砂体构型和定量参数及其控制因素进行研究。研究区辫状河单河道砂体宽度多为100～300m，厚度多为2～5m。其横剖面形态呈顶平底凸透镜状或顶凸底凸透镜状，主流线处砂体厚度最大，左右不对称，向两侧厚度递减梯度不同。由单河道拼合叠置形成的复合河道砂体厚度多为5～10m，宽度多为1 000～3 000m，总体呈板状。河道砂体构型可分为叠拼式、侧拼式和孤立式，其中叠拼式进一步分为完全叠拼型、不完全叠拼型和交错叠拼型，侧拼式进一步划分为侧切型和似侧切型。砂体构型不同，砂体连通性不同、非均质程度不同。辫状河砂体构型主要受辫状河相带和构造运动控制。

关键词: 辫状河;单河道砂体;砂体定量参数, 砂体构型, 控制因素

Abstract:

Based on extensive investigation on outcrops in the Permian,Triassic and Jurassic in the areas of Liulin of Shanxi Province,Yan'an and Yanchang of Shaanxi Province and Fukang of Xinjiang Autonomous Region,the sandbody architecture and quantitative parameters of single channel sandbodies of braided river were studied.For the single channel sandbodies,the thickness is commonly 2-5m,and width is commonly 100-300m.The cross section of single channel sandbodies is lenticular,with flat top and convex bottom,or convex top and convex bottom.At the main flow line,the sandbody is thickest.Toward two sides,the thickness gradient is different.For complex channel sandbodies,the thickness is commonly 5-10m,and width is commonly 1000-3000m.The cross section of complex channel sandbodies is planar.The sandbody architecture is divided into stacking-mosaic type,mosaic type and isolated type.Stacking-mosaic type is further divided into three subtypes,and the mosaic type is further divided into two subtypes.The sandbody architecture is controlled by facies belts of braided river and tectonic movement.

Key words: Braided river, Single sandbody, Quantitative parameters, Sandbody architecture, Controlling factors

中图分类号: 

  • TE122.2

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