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金湖凹陷铜城断裂带断层活动特征

张祥成 戴俊生 邹娟 王新新 岳喜伟 伍亚

张祥成, 戴俊生, 邹娟, 等, 2014. 金湖凹陷铜城断裂带断层活动特征. 地质力学学报, 20 (4): 424-433.
引用本文: 张祥成, 戴俊生, 邹娟, 等, 2014. 金湖凹陷铜城断裂带断层活动特征. 地质力学学报, 20 (4): 424-433.
ZHANG Xiang-cheng, DAI Jun-sheng, ZOU Juan, et al., 2014. FAULT ACTIVITY FEATURES OF TONGCHENG FAULT ZONE IN JINHU SAG. Journal of Geomechanics, 20 (4): 424-433.
Citation: ZHANG Xiang-cheng, DAI Jun-sheng, ZOU Juan, et al., 2014. FAULT ACTIVITY FEATURES OF TONGCHENG FAULT ZONE IN JINHU SAG. Journal of Geomechanics, 20 (4): 424-433.

金湖凹陷铜城断裂带断层活动特征

基金项目: 

国家科技重大专项专题"大型油气田及煤层气开发" 2011ZX05042-001

"精细油藏描述技术及剩余油赋存方式研究" 2011ZX05011-001

详细信息
    作者简介:

    张祥成(1989-), 男, 山东临沂人, 硕士, 从事油区构造解析研究。E-mail:zxc1039777585@gmail.com

  • 中图分类号: TE122;P548

FAULT ACTIVITY FEATURES OF TONGCHENG FAULT ZONE IN JINHU SAG

  • 摘要: 通过地震和地质资料解析, 分析了铜城断裂带的构造特征, 讨论了构造演化阶段及特征。研究表明, 铜城断裂带多发育北东走向的断裂构造, 阜宁期和三垛期是断层集中发育的阶段, 阜宁期掀斜旋转明显, 断块、断鼻构造发育。铜城断裂带新生代断层活动性表现出强弱交替的特征, 断层活动性复杂。阜宁期断层活动性加强, 戴南期相对较弱, 三垛期断裂活动又增强, 此后, 断层活动基本停止。铜城断层两侧地层差异沉降明显。铜城断裂带构造演化经历断块发育期(E1f)、差异沉降期(E2d-E2s)、逆冲褶断期(E2s末期)、构造稳定期(Ny-Qd)等4个时期。在吴堡运动、三垛运动的叠加与早期基底断层的共同作用下, 铜城断裂带形成断鼻构造、复杂断块构造及弧形断层圈闭, 为油气聚集提供良好的场所。

     

  • 图  1  金湖凹陷铜城断裂带构造区简图

    Figure  1.  A simplified structural map of Tongcheng fault zone in Jinhu sag

    图  2  铜城断裂带阜二段顶面构造

    Figure  2.  Top surface contour map of Tongcheng fault zone in the Funing Formation

    图  3  inline-181测线地震解释剖面(测线位置见图 2)

    E1f1—阜一段;E1f2—阜二段;E1f3—阜三段;E1f4—阜四段;E2d—戴南组;E2s—三垛组;N+Q—新近系和第四系

    Figure  3.  Seismic section interpretation of the Line inline-181

    图  4  金湖凹陷铜城断裂带古近纪断层落差

    Figure  4.  Fault fall of Plaeogene in Tongcheng fault zone of Jinhu sag

    图  5  铜城断裂带构造演化剖面(测线位置见图 2,地层代号见图 3)

    Figure  5.  Tectonic evolutionary section of Tongcheng fault zone

    图  6  铜城断裂带成藏模式图(地层代号见图 3)

    Figure  6.  Hydrocarbon accumulation model in Tongcheng fault zone

    表  1  不同地质时期长期活动主要断层的落差

    Table  1.   The major fault falls in different geological periods

    地质时期 断层落差/m
    dong1-1f dong2f ftch fij1 平均值
    Ny+Qd 31 9.0 17.0 0 14.25
    E2s 77 123.2 189.2 68 114.34
    E2d 67 80.0 149.0 82 94.50
    E1f 108 131.0 148.6 147 133.65
    下载: 导出CSV

    表  2  铜城断层两盘地层厚度对比表

    Table  2.   Stratigraphic thickness comparison between the two sides of Tongcheng fault

    层位 西盘 东盘
    南部厚度/m 北部厚度/m 南部厚度/m 北部厚度/m
    三垛组 1400 960 670 660
    戴南组 1050 1045 970 1000
    阜宁组 1330 1000 1070 1300
    下载: 导出CSV
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  • 收稿日期:  2014-07-05
  • 刊出日期:  2014-12-28

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