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通常,牙轮钻孔的特点是钻进过程中振动很大,这是因为钻机工作机构承受相当大的静载荷和动载荷之故。降低这些载荷的方法之一是利用钻头上部和钻杆中间的稳杆-定心器稳定钻杆。
Typically, roller cone drilling is characterized by a high degree of vibration during drilling, due to the considerable static and dynamic loads on the working mechanism of the drilling rig. One of the ways to reduce these loads is to stabilize the drill pipe using a stabilizer bar-centering device in the middle of the drill bit and drill pipe.