摘要
Shale gas refers to the natural gas storing in shale formation （mainly dark mudstone, carbon-rich mudstone, or containing thin sand）, which is typical ＂in-situ＂ reservoir （Zhang, 2003）. Portion of shale gas store in intergranular pore and natural fractures as free state, others store on the surface of organic matter （kerogen） and minerals as adsorbed state （Ross and Bustin, 2009）;
Shale gas refers to the natural gas storing in shale formation （mainly dark mudstone, carbon-rich mudstone, or containing thin sand）, which is typical ＂in-situ＂ reservoir （Zhang, 2003）. Portion of shale gas store in intergranular pore and natural fractures as free state, others store on the surface of organic matter （kerogen） and minerals as adsorbed state （Ross and Bustin, 2009）;
