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成批生产的钻石油和天然气井所用的牙轮钻头在采矿工业中使用的经验表明,在磨料性的水成岩、变质岩和火成岩中,主要由于牙轮齿的磨损而使成批的牙轮钻头很快就损坏了。因此,全苏钻探技术科学研究院(ВНИИБТ)在1959年进行创造和改进用于上述岩石中钻爆破孔的牙轮钻头的工作。试验研究工作表明,对钻磨料性岩石最有效的是镶硬质合金柱的牙轮钻具,也就是用硬质合金齿加强牙轮。同时也确定,对钻坚硬和特别坚硬、具有足够的脆性的磨料性
The experience of the use of roller cone bits in batches of diamond oil and natural gas wells in the mining industry indicates that, among abrasive abrasives, metamorphic rocks and igneous rocks, batches of roller cone bits are mainly due to the wear of the teeth of the tooth cones. It was soon damaged. Therefore, the All-Sorbent Drilling Research Institute of Science (ВНИИБТ) in 1959 carried out the work of creating and improving the cone drill bit used for blasting holes in the above rock. Experimental studies have shown that the most effective tool for drilling abrasive rock is a cemented carbide column-mounted roller cone drill, that is, cemented carbide toothed wheels are reinforced. At the same time, it is also determined that the drill is hard and particularly hard and has sufficient brittleness.