کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8123704 | 1522538 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Permeability evolution of shale under anisotropic true triaxial stress conditions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی اقتصادی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Permeability evolution of shale under anisotropic true triaxial stress conditions Permeability evolution of shale under anisotropic true triaxial stress conditions](/preview/png/8123704.png)
چکیده انگلیسی
Although permeability data for shale have been reported previously and permeability models have been proposed, studies on permeability for shale under anisotropic true triaxial stress conditions are lacking. In this work, the permeability of shale under true triaxial stress conditions was measured using a newly developed true triaxial geophysical apparatus. The permeability always decreased with increasing principal stress. The permeability variations induced by varying each principal stress were distinct. The greatest permeability reductions were observed with increasing stress normal to the bedding planes. Based on a consideration of shale anisotropy, a permeability model was established to be applicable to shale under anisotropic true triaxial stress conditions (TTP model). This model was verified by matching the permeability data in our experiments. It was found that a more accurate match could be obtained using the TTP model, which showed advantages in reflecting the permeability changes related to increments in each principal stress.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Coal Geology - Volume 165, 1 August 2016, Pages 142-148
Journal: International Journal of Coal Geology - Volume 165, 1 August 2016, Pages 142-148
نویسندگان
Minghui Li, Guangzhi Yin, Jiang Xu, Jie Cao, Zhenlong Song,