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    松辽盆地新立地区浅水三角洲水下分流河道砂体结构解剖

    王家豪 陈红汉 江涛 唐振兴 赵宝峰 徐东浩

    王家豪, 陈红汉, 江涛, 唐振兴, 赵宝峰, 徐东浩, 2012. 松辽盆地新立地区浅水三角洲水下分流河道砂体结构解剖. 地球科学, 37(3): 556-564. doi: 10.3799/dqkx.2012.062
    引用本文: 王家豪, 陈红汉, 江涛, 唐振兴, 赵宝峰, 徐东浩, 2012. 松辽盆地新立地区浅水三角洲水下分流河道砂体结构解剖. 地球科学, 37(3): 556-564. doi: 10.3799/dqkx.2012.062
    WANG Jia-hao, CHEN Hong-han, JIANG Tao, TANG Zhen-xing, ZHAO Bao-feng, XU Dong-hao, 2012. Sandbodies Frameworks of Subaqueous Distributary Channel in Shallow-Water Delta, Xinli Area of Songliao Basin. Earth Science, 37(3): 556-564. doi: 10.3799/dqkx.2012.062
    Citation: WANG Jia-hao, CHEN Hong-han, JIANG Tao, TANG Zhen-xing, ZHAO Bao-feng, XU Dong-hao, 2012. Sandbodies Frameworks of Subaqueous Distributary Channel in Shallow-Water Delta, Xinli Area of Songliao Basin. Earth Science, 37(3): 556-564. doi: 10.3799/dqkx.2012.062

    松辽盆地新立地区浅水三角洲水下分流河道砂体结构解剖

    doi: 10.3799/dqkx.2012.062
    基金项目: 

    国家“973”课题 2012CB214804

    详细信息
      作者简介:

      王家豪(1968-), 男, 副教授, 博士, 主要从事沉积学、层序地层学、油气储层方面的教学和研究工作.E-mail: cugwangjiahao@163.com

    • 中图分类号: P624

    Sandbodies Frameworks of Subaqueous Distributary Channel in Shallow-Water Delta, Xinli Area of Songliao Basin

    • 摘要: 上白垩统嫩江组三段时期, 松辽盆地进入坳陷晚期演化阶段, 浅水三角洲广泛发育.在新立地区, 与Ⅲ、Ⅱ、Ⅰ 3个砂组对应, 嫩三段由3个浅湖-三角洲前缘的沉积旋回组成, 指示了湖盆水体逐渐变浅的过程.基于研究区密井网资料, 通过对3个砂组沉积相平面展布和水下分流河道砂体结构解剖表明, 随着盆地坡度逐渐变缓和水体变浅, 三角洲规模迅速增大, 水下分流河道稳定性增强, 单支水道延伸距离增加, 分叉-合并频率降低, 决口-漫溢作用增强, 水下分支间湾面积比例增加, 由此导致水下分流河道砂体连通性依次减弱, 分别呈中厚席状、窄薄条带-斑块状、宽厚条带状, 并控制了油藏类型由构造型向岩性油藏的转变.最终, 归结出网状、枝状、似曲流河3种浅水三角洲沉积模式.

       

    • 图  1  松辽盆地南部构造分区

      Fig.  1.  Tectonic units in the southern Songliao basin

      图  2  JH105井嫩三段沉积演化序列(井位见图 3)

      Fig.  2.  Depositional sequence in the third member of Nenjiang Formation, well JH105

      图  3  地震均方根振幅属性及其沉积相解释

      Fig.  3.  Sedimentary facies interpretation by RMS seismic attribute

      图  4  Ⅲ砂组2小层砂岩等厚图

      Fig.  4.  Sandbodies isopach map in Layer 2 of sand-unit Ⅲ

      图  5  Ⅱ砂组1小层砂岩等厚图

      Fig.  5.  Sandbodies isopach map in Layer 1 of sand-unit Ⅱ

      图  6  Ⅰ砂组2小层砂岩等厚图

      Fig.  6.  Sandbodies isopach map in Layer 2 of sand-unit Ⅰ

      图  7  Ⅲ砂组三角洲砂体结构解剖(剖面位置见图 4)

      垂直方向为井深, 单位: m

      Fig.  7.  Profiles showing sandbodies structures in sand-unit Ⅲ

      图  8  Ⅱ砂组砂体结构解剖(剖面位置见图 5)

      垂直方向为井深, 单位: m

      Fig.  8.  Profiles showing sandbodies structures in sand-unit Ⅱ

      图  9  Ⅰ砂组砂体结构解剖(剖面位置见图 6)

      垂直方向为井深, 单位: m

      Fig.  9.  Profiles showing sandbodies structures in sand-unit Ⅰ

      图  10  嫩三段各砂组沉积模式

      Fig.  10.  Sedimentary models in the each Sand-unit, Third Member of Nenjiang Formation

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    出版历程
    • 收稿日期:  2011-07-23
    • 网络出版日期:  2021-11-09
    • 刊出日期:  2012-05-01

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