The prediction of gas contentof coal beds in unmining areas on the basis of drilling data

According to the field survey data of the gas contentin the mining areas and the qualitative analysis of gas content,the prediction formula of gas content in coal seams,which can be used for unmining areas,has been obtained by certain method with a variety of drilling data.The authors intend to predict the gas content in coal seams of the coal field and provide a constructive proposal for gas content prediction in coal seams of the large-sized coal mines.