Abstract:

In the period of the mine infrastructure，when the gas is exposed in wellbore, especially having a higher risk of high gas outburst, must take scientific gas prevention and control measures to ensure that the construction of coal mine production safety. Wellbore exposing coal due to venue restrictions, more particularity risk is very demanding work in a technical, management, construction, supervision, it is a complex system engineering. Zijin Coal Industry is the High Gas Mine and the raw coal gas pressure for the wellbore smooth exposing the coal to bring greater difficulty, combined with the actual mine, take scientific and effective gas prevention and control measures to ensure safety to expose the coal seams.