车排子地区石炭系挤压逆冲构造区断层共生裂缝发育程度定量表征
发布时间：2018-10-21 16:19
【摘要】：在准噶尔盆地车排子地区多期挤压逆冲构造背景下,石炭系火山岩断裂伴生大规模构造裂缝。综合利用岩心、薄片、成像测井和地震等资料,对车排子地区石炭系断层共生裂缝的发育程度进行定量化表征及预测。研究结果表明:与逆断层伴生的高角度剪切缝和扩张裂缝是石炭系发育的主要裂缝类型,构造裂缝的走向、倾角、密度及张开度等参数与断层密切相关;研究区断裂级别可划分为Ⅰ~Ⅲ级,通过建立断层共生裂缝密度分布函数,得出3类断层对裂缝发育的控制范围分别为5.5、3.0、0.9 km。在充分考虑不同级别断层对裂缝发育控制作用的基础上,采用统计和回归分析的方法定量分析石炭系断裂强度,通过全区断裂信息维到裂缝信息维的转换,最终实现对车排子地区石炭系断层共生裂缝发育程度的精细刻画和定量表征。
[Abstract]:In the context of multi-stage compressional thrust structure in Chepaizi area, Junggar Basin, the Carboniferous volcanic faults are associated with large-scale structural fractures. The development degree of Carboniferous fault symbiotic fractures in Chepaizi area is quantitatively characterized and predicted by using core, thin slice, imaging logging and seismic data. The results show that high angle shear fractures and spreading fractures associated with the reverse faults are the main types of fractures developed in the Carboniferous. The strike, dip angle, density and opening degree of the structural fractures are closely related to the faults. The fault grade in the study area can be divided into 鈪，
本文编号：2285673
[Abstract]:In the context of multi-stage compressional thrust structure in Chepaizi area, Junggar Basin, the Carboniferous volcanic faults are associated with large-scale structural fractures. The development degree of Carboniferous fault symbiotic fractures in Chepaizi area is quantitatively characterized and predicted by using core, thin slice, imaging logging and seismic data. The results show that high angle shear fractures and spreading fractures associated with the reverse faults are the main types of fractures developed in the Carboniferous. The strike, dip angle, density and opening degree of the structural fractures are closely related to the faults. The fault grade in the study area can be divided into 鈪，
本文编号：2285673
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