苏联达拉游斯基地质探勘队在钻进中使用了钻杆胶皮护圈(图1)。这种护圈是在当地条件下利用旧汽车轮胎制造的,使用钻杆胶皮护圈能预防钻杆与钻孔壁的碰撞,延长钻杆的 The Dalayansky Geological Prospecting Team of the Soviet Union used a drill pipe rubber retainer during drilling (Figure 1). This retainer is made of used car tires under local conditions. The use of drill pipe rubber grommets prevents the drill pipe from colliding with the borehole wall and extends the length of the drill pipe