Molchanov O.M., Vasylenko T.A, Troitskyi H.A., Kamchatnyi O.A., Pronskyi Ye.O. Mass spectrometric and magnetic resonance investigations of fossil coals with varying degrees of disturbance

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Parent Category: Geo-Technical Mechanics, 2017

Category: Geo-Technical Mechanics, 2017, Issue 134

Geoteh. meh. 2017, 134, 115-124

https://doi.org/10.15407/geotm2017.134.115

 

Molchanov O.M., D. Sc. (Tech.), Senior Researcher,

Vasylenko T.A., D. Sc. (Tech.), Senior Researcher,

Troitskyi H.A., Ph.D. (Phys.-Math.), Senior Researcher,

Kamchatnyi O.A., M.S. (Tech),

Pronskyi Ye.O., M.S. (Tech)

(IPMP NAS of Ukraine)

MASS SPECTROMETRIC AND MAGNETIC RESONANCE INVESTIGATIONS OF FOSSIL COALS WITH VARYING DEGREES OF DISTURBANCE

 

UDC 622.333:544.173.3:539.143.43

Language: Russian

Abstract. Studies of fossil coals with varying degrees of disturbance were carried out. Mass spectrometry and nuclear magnetic resonance (NMR) on hydrogen nuclei ¹Н methods were used in the work. Advantages of these methods for studying fossil coals are shown. Influence of the degree of the coal disturbance on their reservoir properties was considered. The differences of elemental composition and kinetics of methane desorption from the studied samples were investigated. Gas desorption from experimental samples is described satisfactorily with taking into account diffusion and filtration mechanisms. It is shown that a large number of closed pores are retained in undisturbed samples; this fact significantly increases duration of methane release from coal during the desorption. The obtained results can be used for calculating processes of methane release from inhomogeneous coal seams basing on existing theoretical model representations.

Keywords: fossil coal, methane, NMR, mass spectrometry.

 

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About the authors

Molchanov Oleksandr Mykolaiovych, Doctor of Technical Sciences (D. Sc), Senior Researcher, Deputy Director, Institute for Physics of Mining Processes of the National Academy of Sciences of Ukraine (IPMP of the NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Vasilenko Tetiana Anatoliivna, Doctor of Technical Sciences (D. Sc), Senior Researcher, Senior Researcher in Department of Physics of Sorption Processes, Institute for Physics of Mining Processes of the National Academy of Sciences of Ukraine (IPMP of the NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Troitskyi Hryhorii Aronovych, Candidate of Physics and Mathematics (Ph. D), Senior Researcher, Senior Researcher in Department of Physics of Sorption Processes, Institute for Physics of Mining Processes of the National Academy of Sciences of Ukraine (IPMP of the NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Kamchatnyi Oleksii Anatoliovych, Master of Science, Junior Researcher in Department of Physics of Sorption Processes, Institute for Physics of Mining Processes of the National Academy of Sciences of Ukraine (IPMP of the NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Pronskyi Yevhenii Oleksandrovych, Master of Science, Junior Researcher in Department of Physics of Coal and Rock, Institute for Physics of Mining Processes of the National Academy of Sciences of Ukraine (IPMP of the NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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