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Experimental Study on the Fractal Features and Permeability Characteristics of Low Metamorphic Coal Pore Structure under Thermal Damage
المؤلفون المشاركون
Liu, Zhen
Zhang, Mingrui
Yu, Shijian
Xin, Lin
Sun, Liutao
Wang, Gang
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-10-05
دولة النشر
مصر
عدد الصفحات
13
التخصصات الرئيسية
الملخص EN
Underground coal gasification and exploitation of geothermal mine resources can effectively improve coal conversion and utilization efficiency, and the basic theory of the above technologies generally relies on the change law of the coal pore structure under thermal damage.
Therefore, the influence mechanism of the development of the coal pore structure under thermal damage is analyzed by the nuclear magnetic resonance experiment, and the temperature-permeability fractal model is created.
The results show that compared with microtransitional pores, the volume of meso-macropores in the coal body is more susceptible to an increase in temperature, which was most obvious at 200-300°C.
During the heating process, the measured fractal dimension based on the T2 spectral distribution is between 2 and 3, indicating that the fractal characteristics did not disappear upon a change in external temperature.
The temperature has a certain negative correlation with DmNMR, DMNMR, and DNMR, indicating that the complexity of the pore structure of the coal body decreased gradually with the increase of the temperature.
Compared with the permeability calculated based on the theoretical permeability fractal model, the permeability obtained from the temperature-permeability fractal model has a similar increasing trend as the permeability measured by the NMR experiment when the temperature increases.
The experimental study on pore structure and permeability characteristics of the low metamorphic coal under thermal damage provides a scientific theory for underground coal gasification and geothermal exploitation.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liu, Zhen& Zhang, Mingrui& Yu, Shijian& Xin, Lin& Wang, Gang& Sun, Liutao. 2020. Experimental Study on the Fractal Features and Permeability Characteristics of Low Metamorphic Coal Pore Structure under Thermal Damage. Geofluids،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1166063
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liu, Zhen…[et al.]. Experimental Study on the Fractal Features and Permeability Characteristics of Low Metamorphic Coal Pore Structure under Thermal Damage. Geofluids No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1166063
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liu, Zhen& Zhang, Mingrui& Yu, Shijian& Xin, Lin& Wang, Gang& Sun, Liutao. Experimental Study on the Fractal Features and Permeability Characteristics of Low Metamorphic Coal Pore Structure under Thermal Damage. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1166063
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1166063
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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