Gas Content and Structure of Coal in Donetsk Basin
E. V. UL'YANOVA1, O. N. MALINNIKOVA1, A. V. BURCHAK2, A. K. BALALAEV2, V. I. BARANOVSKY2
1Academician Melnikov Institute of Integrated Mineral Development, Russian Academy of Sciences, Kryukovskii tupik 4, Moscow, 111020 Russia
2Polyakov Institute of Geotechnical Mechanics, National Academy of Sciences of Ukraine, ul. Simferopolskaya 24, Dnepropetrovsk, 49005 Ukraine
Keywords: ископаемый уголь, метаморфизм, газоносность, палеопузырьки, структура, методы спектроскопии, fossil coal, rank, gas content, paleo-bubbles, structure, spectroscopy methods
Abstract
The integrated study of coal is performed using methods of optical and electron paramagnetic resonances, infrared spectroscopy and Raman spectroscopy. It is found that gas content of coal is governed by the rank of coal and its material constitution as well as by the coal bed structure at the macro-, micro- and nano-levels which interwork. It is discovered that the size and amount of bubbles, of paleo-origin presumably, and the content of coalbed methane are related. The influence of each scale level of the coal bed structure on the gas content is revealed. The authors illustrate benefits of the integrated study of gas-bearing coal with the physical methods that complement one the other at different levels of coal structure.
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