Research Institute of Petroleum Exploration&Development PetroChina Beijing 100083 China;
Research Institute of Petroleum Exploration&Development PetroChina Beijing 100083 China;
Research Institute of Petroleum Exploration&Development PetroChina Beijing 100083 China;
Research Institute of Petroleum Exploration&Development PetroChina Beijing 100083 China;
coal measure source rocks; high-over maturation; coal-derived gas; thermal simulation experiment;