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汊涧斜坡带阜宁期应力场数值模拟及低级序断层发育规律预测

付晓龙 戴俊生 张宏国

付晓龙, 戴俊生, 张宏国, 2013. 汊涧斜坡带阜宁期应力场数值模拟及低级序断层发育规律预测. 地质力学学报, 19 (2): 125-132.
引用本文: 付晓龙, 戴俊生, 张宏国, 2013. 汊涧斜坡带阜宁期应力场数值模拟及低级序断层发育规律预测. 地质力学学报, 19 (2): 125-132.
FU Xiao-long, DAI Jun-sheng, ZHANG Hong-guo, 2013. NUMERICAL SIMULATION OF STRUCTURAL STRESS FIELD IN FUNING SEDIMENTARY PERIOD AND PREDICTION OF THE DEVELOPMENT LAW OF LOWER-ORDER FAULTS IN CHAJIAN SLOPE ZONE. Journal of Geomechanics, 19 (2): 125-132.
Citation: FU Xiao-long, DAI Jun-sheng, ZHANG Hong-guo, 2013. NUMERICAL SIMULATION OF STRUCTURAL STRESS FIELD IN FUNING SEDIMENTARY PERIOD AND PREDICTION OF THE DEVELOPMENT LAW OF LOWER-ORDER FAULTS IN CHAJIAN SLOPE ZONE. Journal of Geomechanics, 19 (2): 125-132.

汊涧斜坡带阜宁期应力场数值模拟及低级序断层发育规律预测

基金项目: 

国家科技重大专项"深煤层地应力预测及高渗富集规律研究" 2011ZX05042-001-001

详细信息
    作者简介:

    付晓龙(1989-), 男, 山东省德州市人, 硕士研究生, 研究方向:构造地质学。E-mail:upcfxl@163.com

  • 中图分类号: P618.13

NUMERICAL SIMULATION OF STRUCTURAL STRESS FIELD IN FUNING SEDIMENTARY PERIOD AND PREDICTION OF THE DEVELOPMENT LAW OF LOWER-ORDER FAULTS IN CHAJIAN SLOPE ZONE

  • 摘要: 汊涧斜坡带位于金湖凹陷西斜坡南部,第三系沉积期间主要经历了吴堡和三垛运动,形成了复杂的断裂体系,属复杂断块油藏,区内低级序断层较为发育。根据断层平面展布确定阜宁期最小主应力方向为北北西350°,采用有限元法建立地质模型并进行构造应力场数值模拟,计算得出各应力分布,并据此对低级序断层发育规律进行预测。研究表明,汊涧斜坡带阜宁期最大、最小主应力均为水平方向,形成的低级序断层具有张扭性特征;低级序断层的发育主要受最大与最小主应力差值及剪应力控制,主应力差值控制断层优势发育地区,平面剪应力控制断层走向,剖面剪应力控制断层倾向。

     

  • 图  1  金湖凹陷西斜坡构造简图

    Figure  1.  A simplified structural map of the western slope zone in Jinhu sag

    图  2  金湖凹陷西斜坡南部断层平面展布图

    Figure  2.  Distribution of the faults in the western slope zone of Jinhu sag

    图  3  金湖凹陷西斜坡南部阜宁组断层走向玫瑰花图

    Figure  3.  Rose diagram of fault strike of Funing Formation in the south of the western slope of Jinhu sag

    图  4  汊涧斜坡带阜宁期地质模型

    Figure  4.  Geological model of Chajian slope zone in Funing sedimentary period

    图  5  阜宁期应力场最小主应力及最大主应力分布(正值代表张应力)

    Figure  5.  Distributions of the minimum and the maximum principal stresses in Funing sedimentary period

    图  6  阜宁期最小与最大主应力差值及平面剪应力

    Figure  6.  Differences between the minimum and maximum principal stresses and the plane shear stress in Funing sedimentary period

    表  1  汊涧斜坡带阜宁期应力场模拟力学参数

    Table  1.   Mechanical parameters in stress field simulation of Funing Period in Chajian slope zone

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出版历程
  • 收稿日期:  2012-12-21
  • 刊出日期:  2013-06-28

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