The SD series single cone bit is applicable to be used in the drilling of the slim hole (e.g. windowing sidetrack drilling during the maturing well deepening). The active cutting gauge protection teeth of the cone body and the passive gauge protection teeth of the tooth claw inserted with the diamond for abrasion resistance are used for duple gauge protection. The antifriction alloy is inserted in the bearing, and by adopting the silver plating treatment as well as special and reliable locking technology, the loading length of the shaft journal can be effectively increased and the life time of the bearing can be prolonged. The oil storage compensating system using the patented technology can significantly improve the seal reliability of the bearing, and the two main water pores structure improve the abilities of jet flow and diffusion cleaning.
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SD Series Single Cone Bit