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使用取心和全巷钻进的钻探装置钻进大口径钻井和竖井。取心钻探装置与全巷钻进装置相比，前者的主要优点是，建井时破碎和运输岩石的能量消耗少，在硬岩层中尤其如此。破碎岩石的环圈仅占井底面积的10—30％，而主要岩块做为岩心从钻井内提取。取心钻探装置的岩石破碎工具是钻粒钻头或牙轮钻头。
Drill large bore drills and shafts with coring and full bore drilling rigs. CORE DRILLING The main advantage of the former compared to a full borehole drilling installation is the energy cost of crushing and transporting rocks during well construction, especially in hard rock formations. The ring of broken rocks only accounts for 10-30% of the area of the bottom of the hole, while the main rock mass is extracted from the well as a core. Rock crushers for coring drilling equipment are drill bits or roller cone bits.