Single Cone Bit
Single cone bit is a kind ofdeceleration bit, which is the speed of cone is smaller than the speed ofdrill, mainly disorderly cutting broken rock. It is suitable for old wellsidetracking and deepening the slim hole drilling operation under high rotaryspeed and drilling pressure.
1. Its application field is wide, notonly suitable for side drilling, and can be used in deep well.
2. Work torque is lower than PDC bit in the same drillingpressure and formation condition. It can reduce the small size hole expansionbuckling problems, so that avoid down hole accidents.
3. Single cone bit has advantages ofboth three cone bit and PDC bit, and make up the disadvantages of both. It ismore suitable for large plastic formation than three cone bit, also can beapplied to hard interlayer which PDC bit can not deal with other complex formation.
4. It can realize high speed and specialdrilling with down hole motor.