Exploration Prospect of Low Rank Coalbed Methane Coal in Huhehu Depression Hailar Basin

CBM resource in Huhehu depression Hailar Basin is large. Damoguai formaiton is the most favorable exploration coalbed methane target layer for top depth of 500-1200m, big coal seam thickness, low seam mineral content and high vitrinite by drilling, seismic and experimental data. Then cover character is evaluated and distribution is predicted. By analogy other low-level the CBM reservoir control factors, the south of depression is the most favorable area of CBM exploration for bigger coal thickness and better sealing conditions.