近几年来在煤田钻探上，苏联和其他国家都开始使用了和正在试用着用压缩空气来代替清水或泥浆的钻进方法。已取得了一定的经验和成绩，从而也找出了一些缺点和改进的措施，利用压缩空气冲洗井底方法解决了孔内严重漏水；空洞冲洗液不能循环及钻孔在高山不易送水………等困难，使钻孔能顺利完成。 In the field of coalfield drilling in recent years, the Soviet Union and other countries have started to use and are experimenting with drilling methods that use compressed air instead of water or mud. Has made some experience and achievements, which also identified some shortcomings and improvement measures, the use of compressed air flush bottom hole method to solve the serious hole leakage; cavity flushing fluid can not be recycled and drilling in the mountains is not easy to water ......... And other difficulties, so that drilling can be successfully completed.