Development and prospect on intelligent drilling technology and equipment for gas drainage

Achievements and defects of exiting intelligent drilling technologies and equipments for coal mine gas drainage were summarized including underground remote—control drilling, ground control drilling, ground automatic remote—control drilling, automatic remote—control drilling, etc. Some key technologies which were necessary to realize intelligent drilling for gas drainage were proposed，such as intelligent sense of drilling conditions, intelligent control of drilling process, intelligent drilling design for gas prevention, autonomous navigating and positioning of drilling equipments and so on, and possible solutions were pointed out. The developing direction and way of intelligent drilling technology for gas drainage were prospected. It was proposed that progressively realizing intelligent drilling for gas drainage had three stages including fully automatic rig, intelligent rig and drilling robot. It was also pointed out that a lot of effort was indeed needed in many aspects to improve innovation and application of intelligent drilling technology for gas drainage overall.