DETERMINATION OF GAS CONTENT AND METHANE PRESSURE IN THE COAL SEAMS

Details

Parent Category: Geo-Technical Mechanics, 2013

Category: Collection of scientific papers «Geotekhnicheskaya Mekhanika» Issue 112

UDC 622.411.332:533.17

G.P. Starikov, D. Sc. (Tech.),

V.V. Zavrazhin, Ph.D. (Tech.),

Ya. V. Shazhko, Juniour Reseacher

(IPMP NAS of Ukraine)

Sh. V. Mamleyev, Master of Science

(AP «Shakhtersraya-Glubokaya

SP «Shakhterskantratsit»)

Abstract.

Content of free and adsorbed methane in the opened pores and microblocks of methane-saturated anthracite coal was estimated by quantity. To establish regularities of changes in density of the gas streams escaping through the cracks and pores of the coals a physical model of the coal matter was created which included cracks, connected with the opened pores (filtration volume), and closed pores. It is stated that methane content in the transporting channels (pores) makes more than one third from total methane content in the coal. A method of and facilities for estimating gas content and methane pressure in the coal were created basing on peculiar features of the gas emission of methane. A mechanism of methane desorption from the coal was defined with taking into account specific crack-porous structure of the coal and phase state of methane in it. Technical parameters were grounded, and a device for measuring, in mines, gas-content and methane pressure in the coal was designed and tested.

Keywords:

free and adsorbed methane, gas content, methane pressure.

References:

1. Zheltov, Yu.P. (1962), «About filtration of gas in crack breeds», PMTF, no.5.

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About the authors:

Starikof Genadii Petrovich, Doctor of Technical Sciences (D.Sc.), Professor, Сhief Researcher and Head of Department in Department of projection and control gas dynamic phenomena in mines, Institute of Physics of Mining Processes under the National Academy of Science of Ukraine (IFMP, NASU), Donetsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

ZavrazhynVyacheslavVyachеslavovich, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in Department of projection and control gas dynamic phenomena in mines, Institute of Physics of Mining Processes under the National Academy of Science of Ukraine (IFMP, NASU), Donetsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Shazhko Yaroslav Vitalievich, Candidate of Technical Sciences (Ph.D), Junior Researcher in Department of projection and control gas dynamic phenomena in mines, Institute of Physics of Mining Processes under the National Academy of Science of Ukraine (IFMP, NASU) , Donetsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Mamleev Shamil Veniatulovich,Engineer, mine Shakhterskaya-Glubokaya under the Shakhterskantratsit, Shahtersk, Ukraine

 

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