The Application And Experimentation Prospect for DaTong coalfield to resource of Permo-carboniferous periodBy Air drilling, Foam drilling , DTH hammer drilling with experience of drilling techniques.

• 通过对空气钻进、空气泡沫钻进工艺和空气潜孔锤钻进工艺的生产试验和推广应用,为大同煤田石炭、二叠纪煤炭资源勘探探索钻探施工的成功经验。