The Effect of Pore Structure on the Distribution of Wet Gases in Coal Seams of Enhong Syncline, SW China

The origin of the high content wet gases in coalbed seams is very important geologically, especially Enhong syncline China. present study focuses on role material that generates hydrocarbons. effect pore structure generation has not been thoroughly examined. paper characterizes coal “wet gas area” and “dry area”. structures two areas are shown to have different features, which affect distribution gases. With respect parameters, coals area a greater total specific surface volume micropores. types also differ between areas: dry mainly parallel type reverse S type, favorable for migration dissipation relatively closed, with poor connectivity susceptibility blockage. micropore volume, area, significantly reserve adsorption capacity micropores closed contribute preservation