Main gaps of exploration technologies of coalbed methane between China and foreign countries were introduced. Through prediction for developement trend of foreign technologies, inspiration for domestic development can be achieved.

• 介绍了中国煤层气勘探开发技术与国外水平的主要差距,通过对国外煤层气技术发展趋势预测,给中国煤层气产业发展以启示。