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    东濮凹陷文东地区沙三段层序地层学特征

    廖远涛 张世民 夏鹏远 何汉坤 王家豪

    廖远涛, 张世民, 夏鹏远, 何汉坤, 王家豪, 2005. 东濮凹陷文东地区沙三段层序地层学特征. 地球科学, 30(2): 133-139.
    引用本文: 廖远涛, 张世民, 夏鹏远, 何汉坤, 王家豪, 2005. 东濮凹陷文东地区沙三段层序地层学特征. 地球科学, 30(2): 133-139.
    LIAO Yuan-tao, ZHANG Shi-min, XIA Peng-yuan, HE Han-kun, WANG Jia-hao, 2005. Sequence Stratigraphy of Es3 Member in Wendong District, Dongpu Depression. Earth Science, 30(2): 133-139.
    Citation: LIAO Yuan-tao, ZHANG Shi-min, XIA Peng-yuan, HE Han-kun, WANG Jia-hao, 2005. Sequence Stratigraphy of Es3 Member in Wendong District, Dongpu Depression. Earth Science, 30(2): 133-139.

    东濮凹陷文东地区沙三段层序地层学特征

    基金项目: 中国石油化工股份有限公司中原油田分公司采油一厂项目
    详细信息
      作者简介:

      廖远涛(1977 -), 男, 博士生, 主要从事层序地层学、沉积学、油气地质与勘探方面的研究工作.E-mail: lyt706@163.com

    • 中图分类号: P53

    Sequence Stratigraphy of Es3 Member in Wendong District, Dongpu Depression

    • 摘要: 运用层序地层学理论,通过钻井高精度层序地层分析(包括单井岩心沉积相分析、单井高精度层序地层分析、联井高精度层序划分对比),结合地震层序分析,东濮凹陷文东地区沙三段(Es3) 可划分为4个三级层序: SQ1、SQ2、SQ3、SQ4,可识别出4种主要沉积体系: 湖泊三角洲体系、湖泊体系、重力流体系、扇三角洲体系.综合前述特征,文东地区沙三段层序地层学特征表现为: SQ1在文东斜坡带上发育浅湖相,局部地区发育重力流沉积; 东侧发育扇三角洲体系,并逐渐退积.SQ2—SQ4文东斜坡带上主要发育湖泊体系(滨湖、浅湖、半深湖和盐湖) 与湖泊三角洲前缘亚相; 东侧主要为扇三角洲体系,规模较小.结合层序地层与沉积学特征分析,湖泊三角洲前缘砂体、扇三角洲砂体、重力流砂体是文东地区有利的储集体.

       

    • 图  1  东濮凹陷文东地区区域构造

      Fig.  1.  Sketch structure map of Wendong district in Dongpu depression

      图  2  东濮凹陷文东地区(Es3) 重力流体系沉积特征及沉积组合

      a.水下重力流沉积(濮深7井Es33); b.滑塌重力流特征及沉积组合(文177井Es34); 1.泥岩; 2.粉砂质泥岩; 3.含砾砂岩; 4.灰质粉砂岩; 5.泥质粉砂岩; 6.油页岩; 7.水平层理; 8.波状交错层理; 9.变形构造; 10.泄水构造; 11.基准面下降; 12.基准面上升

      Fig.  2.  Depositional characteristics and association of gravity flow of Es3 member in Wendong district, Dongpu depression

      图  3  东濮凹陷文东地区Qc2井SQ2、SQ3高精度层序地层分析

      1.粉砂岩; 2.粉砂质泥岩; 3.泥岩; 4.油页岩; 5.含膏泥岩; 6.灰质泥岩; 7.基准面下降; 8. 基准面上升

      Fig.  3.  High-resolution sequence stratigraphy of analysis of SQ3、SQ2 of Qc2 in Wendong district, Dongpu depression

      图  4  东濮凹陷文东地区过Xw16-W93-Q2井的地震剖面层序地层解释

      Fig.  4.  Interpretation map of sequence stratigraphy of seismic profile across Xw16-W93-Q2 in Wendong district, Dongpu depression

      图  5  东濮凹陷文东地区沙三段(Es3) 沉积充填序列与层序地层划分图

      Fig.  5.  Sediment fill-sequence and division of sequence stratigraphy of Es3 member in Wendong district, Dongpu depression

      图  6  东濮凹陷文东地区沙三段(Es3) 层序地层模式

      1.浅湖-半深湖; 2.滨浅湖+前三角洲; 3.重力流沉积; 4.扇三角洲; 5.初始湖泛面; 6.湖泊三角洲前缘; 7.盐湖; 8.干盐湖; 9.最大湖泛面; 10.层序界面

      Fig.  6.  Sequence stratigraphy model of Es3 member in Wendong district, Dongpu depression

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    出版历程
    • 收稿日期:  2004-07-15
    • 刊出日期:  2005-03-25

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