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中国从８０年代末开始引进美国的地面垂直井技术在全国约１８个含煤盆地中进行了煤层气的勘探和开发试验，几乎所有的试验结果都表明中国的煤层气井不能获得高产。作者通过分析中国煤层气藏的特殊性解释了当前煤层气井不能高产的原因，将中国煤层气藏的主要特征概括为五个方面。提出，根据中国煤层气藏的特殊条件，应从提高导流能力、建立有效压差等五个方面入手，完善现有的煤层气开发技术。最后，作者建议应积极采用欠平衡钻井技术，并针对我国目前煤层气藏的地质条件建立了三个煤层气开发技术系列。
Since the late 1980s, China introduced ground-based vertical well technology from the United States to conduct CBM exploration and development experiments in about 18 coal-bearing basins across the country. Almost all the experimental results show that CBM wells in China are not able to achieve high yields. By analyzing the particularity of CBM in China, the author explains why CBM wells can not be over-produced and summarizes the main features of CBM in China into five aspects. According to the special conditions of coalbed methane reservoirs in China, we should start from the following five aspects: enhancing the diversion capability and establishing effective pressure drop, and improve the existing CBM development technologies. Finally, the author suggests that the underbalanced drilling technology should be actively used and set up a series of three CBM development technologies for the current geological conditions of coalbed methane reservoirs in China.