EXPLORING FOREGROUND OF LOW RANK COAL BASINS IN EASTERN INNER MONGOLIA OF CHINA
内蒙古东部低煤阶含煤盆地群的煤层气勘探前景

Recently, commercial coalbed methane production rate has gotten in the Tertiary Powder River basin in USA, which had. lower coal rank and lower gas content, but has higher coal thickness and gas abundance; this made us beginning to considering coalbed methane resource in the lower coal rank basin of eastern Inner Mongolia. Tertiary and Cretaceous coal with a resource of 2 trillion cubic meters was the most important coal accumulated period, which has a thick coal seam, lower coal rank, lower gas content. Through the analysis of Northeast China, we could found that it is important to reinforce study on coalbed methane preservation condition, study on forecasting of high permeable and gas-riched area, secondary biogenesis gas and hydraulic conditions.