煤层气是自生自储的非常规天然气,亦称煤层甲烷,在煤矿俗称瓦斯。自80年代美国煤层气勘探开发取得突破性进展以来,作为一种优质洁净高效的新能源,已有包括中国在内的29个国家相继开展了煤层气资源评价研究和勘探开发试验。目前,煤层气在美国已发展成为一门新兴能源工业。 CBM is self-generated and unconventional natural gas, also known as coalbed methane, commonly known as gas in coal mines. Since the breakthrough development of coalbed methane exploration and development in the United States in the 1980s, 29 countries, including China, have successively carried out CBM resource evaluation research and exploration and development tests as a high-quality clean and highly efficient new energy source. At present, CBM has developed into an emerging energy industry in the United States.