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Complex Technology of Underground Coal Gasification and Coal-Based Methane Recovery Using Geodynamic Zoning

  • Shabarov Arkady Nikolaevich
  • Tsirel Sergey Vadimovich
  • Goncharov Evgeniy Vladimirovich
Conference paper

Abstract

The article describes the complex technology of coal methane recovery, which involves underground coal gasification of lower beds in series of gas-rich strata liable to rock-bumps, coal based methane recovery and mechanized coal mining. Geodynamic zoning is used for selection of places for well drilling. The application of the suggested technology enables to solve a range of tasks, such as
  • unloading of workable beds and reduction of their rock-bump hazard due to protective seam burnout;

  • increase of workable beds degasification due to unloading;

  • increase of workable bed methane desorption rate due to conductive and partly convectional heat transfer through interbeds;

  • reduction of workable bed coal strength and rock-bump hazard by passing-through combustion gases (CO and especially CO2);

  • degasification of coal bearing layers and sublayers of interbeds due to their partial burnout during gasification and accelerated degassing during intensive heating;

  • increase of gasification products heat value due to their diluting with methane recovered from upper beds degasification;

  • reduction of methane outburst to the atmosphere, which has greater greenhouse effect in comparison to carbon dioxide.

Keywords

series of coal strata gasification complex technology degassing geodynamic zoning methane 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Shabarov Arkady Nikolaevich
    • 1
  • Tsirel Sergey Vadimovich
    • 2
  • Goncharov Evgeniy Vladimirovich
    • 3
  1. 1.National Mineral Resources University (Mining University)Vice-Rector (Head) of Center of Geomechanics and Issues of Mining Industry, Doctor of Engineering ScienceVasilievsky IslandRussia
  2. 2.National Mineral Resources University (Mining University)Chief Research Fellow, Doctor of Engineering ScienceVasilievsky IslandRussia
  3. 3.National Mineral Resources University (Mining University)Senior Research Fellow of Laboratory of GeodynamicsVasilievsky IslandRussia

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