کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8125550 | 1522779 | 2018 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanoscale geomechanical properties of Western Australian coal
ترجمه فارسی عنوان
خواص ژئومکانیک نانوساختار زغال سنگ غربی استرالیا
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کلمات کلیدی
تست نانوندیانت، ریز ساختار، مدول یانگ، متان زغال سنگ پیشرفته،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی اقتصادی
چکیده انگلیسی
Geomechanical properties are of great importance in coal mining exploration, (enhanced) coal bed methane production and carbon geosequestration in deep unmineable coal seams. However, coal highly heterogeneous rocks, and conventional experimental methods (e.g. acoustic, seismic or unconfined compressive strength tests) only measure the cm-m scale bulk properties. Thus, we measured the geomechanical properties at nanoscale of Western Australian Collie coal. We mapped the nanoscale mechanical heterogeneity and correlated it with the sample's morphology (measured by SEM-EDS). It was found that the quartz and siderite in the coal had higher Young's moduli (up to 28.6Â GPa), while the organic coal matrix had lower Young's moduli (from 3Â GPa to 5Â GPa), while the soft material kaolinite had the lowest Young's moduli (<3Â GPa). We conclude that it is necessary to measure the geomechanical coal properties at nano/micro scale reliably assess and eventually facilitate field scale CBM/ECBM or CO2 storage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Petroleum Science and Engineering - Volume 162, March 2018, Pages 736-746
Journal: Journal of Petroleum Science and Engineering - Volume 162, March 2018, Pages 736-746
نویسندگان
Hongyan Yu, Yihuai Zhang, Maxim Lebedev, Tongcheng Han, Michael Verrall, Zhenliang Wang, Emad Al-Khdheeawi, Ahmed Al-Yaseri, Stefan Iglauer,