Development Trend of Geo-drilling Equipment of China and Some Recent Versions
Meng Qing-hong · Exploration Engineering(Rock & Soil Drilling and Tunneling) · 2007
The paper reviewed recent advances and applications of geo-drilling equipment of China with emphasis on basic functions,working principles and structures.The description covers full-hydraulic core drilling machines,portable drills,geo-thermal drills,offshore and beach sampling equipment,all-casing drilling rig,etc.