INFLUENCE HYDRODYNAMIC IMPACT ON GASSY COAL SEAMS

Details

Parent Category: Geo-Technical Mechanics, 2014

Category: Geo-Technical Mechanics, 2014, Issue 117

UDC 622.831.622:831.325

Authors:

Moskovskiy O.V., Doctoral of Student (SE «Mine name by F.E. Dzerzhynskogo» SE«Dzerzhynskvugillia»)

Gavrilov V.I., Ph.D. (Tech.), Senior Researcher (IGTM NAS of Ukraine)

Abstract.

The article shows the results laboratory research of the kinetic parameters of the interaction of coal and gas in the coal samples taken from the seams i₃¹ mine management  "Sukhodolskoye-Vostochnaya" with natural gas content 22,5-27 m³/per ton of dry ash-free basis in the process of hydrodynamic impact by EPR. An important methodological difference spent works is to move from estimation of the signal intensity in the singular points of the spectrum to the estimation of the area under the curve of the absorption of microwave energy. This would allow for variation in the width of the signal (ΔH) and the waveform in the calculation of the concentration of paramagnetic centers (CPMC). An analysis of the data on the impact of hydrodynamic impact on concentration of paramagnetic centers in coal of different fractions, the distribution of maximum sorption capacity of coal substance in length treated zone. Was established that as a result of hydrodynamic impact in decreasing content of active carbon, capable of reacting with methane paramagnetic centers, resulting in decreased sorption capacity limit coal matter and increases its gas permeability, and thus increasing the volume of methane from coals seam.

To estimate the duration of the process of sorption-desorption interactions proposed measure the time constant of the process T_N, characterized by a disturbance of the coal seam.

Keywords:

kinetic parameters, hydrodynamic impact, high-energy, paramagnetic centers, sorption capacity, gas permeability.

References:

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Abouttheauthors:

Moskovskiy Oleg Viktorovich, Doctoral of Student, head of the mine site SE «Mine name by F.E. Dzerjinskiy» SE«Dzerzhynskvugillia» Dzerzhynsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Gavrylov Vyacheslav Yvanovych, Candidate of Technical Sciences (Ph.D.), Senior Researcher, Senior Researcher of Department of Undegroud Coal Mining Technology, M.S. Poliakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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