After a mine is closed, methane emissions from the mine workings will decrease but may nonetheless continue over a long period of time. Abandoned mine methane (AMM) is not only a safety risk, however. It may also offer possibilities for power generation or utilisation as primary energy – by feeding it into the gas grid, for instance.

Knowing about the amount of residual gas present in the mine after closure is important for AMM utilisation as well as for identifying potential gas emission points at the surface. Thanks to experience gained during several research & development projects we have been able to develop practical methods for

• Calculating the make-up of the gas
• Calculating residual gas quantities and
• Estimating the volumes that can be extracted and used.
  This method is based on parameters such as
• Original coal reserves 
• Amount of coal extracted
• Original gas content and 
• Configuration of mine workings.

This information provides generating plant operators with an important basis for estimating profitability and investment expenditure.

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Reducing Greenhouse Gases

Reducing Greenhouse Gases (Russian)