THE MINE METHANE UTILIZATION FROM DEGASSING WELLS AND ITS TRANSPORTATION IN A SOLID STATE

Details

Parent Category: Geo-Technical Mechanics, 2014

Category: Geo-Technical Mechanics, 2014, Issue 115

UDC  622.279.72

Authors:

M.P. Ovchynnikov, Ph.D. (Tech.), Associate Professor

K.A. Ganushevych, Doctoral Student

K.S. Sai, M.S. (Tech.)

(SHEE “NMU”)

Abstract.

A necessity to overcome a problem associated with significant emissions of gas from degassing wells into the environment is substantiated. The authors of the paper propose a new alternative technological solution that includes conversion of the mine methane into a gas hydrate state with further gas transporting in a solid state. In connection with this, a possibility of creating the gas hydrates from various gaseous mixtures is analyzed. Dependences were revealed between pressure and temperature of hydrate formation for water-gas mixtures chosen for the laboratory studies. The following specific stages occurred during the gas hydrate formation are considered: formation of crystallization centers and growth of the crystalline hydrate around these centers. Impact of suspended matters in the mine waters on the rate of the crystallization center formation is analyzed. Water salinity degree was taken into account in the experiments. Advantages of gas transporting in a state of gas hydrates are grounded. Technology of transporting natural gas in a liquid state versus transporting in the gas hydrate state is compared by such parameters as gas pressure, temperature and quantity in one volumetric unit of the ssubstance.

Keywords:

gas hydrate, process of gas hydrate formation, degassing well, crystallization centers, self-conservation effect.

References:

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About the authors:

Ovchіnnikov Mykola Pavlovych, Candidate of Technical Sciences (Ph.D), Associate Professor, Associate Professor of the underground mining department, State higher educational institution “National Mining University” (SHEE “NMU”), Dnipropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Ganushevіch Kostyantyn Anatoliyovych, Doctoral Student of the underground mining department, State higher educational institution “National Mining University” (SHEE “NMU”), Dnipropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Say Kateryna Sergiivna, Assistant of the underground mining department, State higher educational institution “National Mining University” (SHEE “NMU”), Dnipropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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