TCI Tricone Bit
Design for higher ROP in drilling deeper and harder formations, PDC drill bit always drills from ground to bottom directly with less or even a single run, saving large amount of drill time and cost .
Differ from tricone bit, PDC drill bit runs with lower WOB but Higher RPM, so it usually works with downhole motor to pick up rotating speed.
The performance of PDC drill bit depends a lot on PDC cutters, we provide unique solution to specific requirement on varied formations.
TCI Tricone Bit is suitable for soft formation with low compressive strength and high drillability, such as mudstone, gypsum and soft limestone, etc. Tricone bit with high strength toughness of carbide tooth reduces rate of gear broken and with high-performance wear resistant materials improve the wear resistance and service life of the bit.
1.Nozzle：These nozzles are much sturdier and provide greater flow capacity and maximize fluid distribution to the cones.
2.Cutter: premium carbide teeth having increased resistance to breaking and abrasion, maximum increase cutting structure operating life.
3.G-Gauge protection: more tungsten carbide inserts are placed in the gauge to reduce the wear in the abrasive formation. It can protect gauge and increases the stability and life of the bit.
4.Bearing Structure: High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved, and suitable for high rotary speed.
1.Motor hardfacing: Tungsten carbide particle hardfacing is applied liberally along the shirttail and extended up the leading edge of the bit leg for additional protection in high-speed, directional or abrasive applications
2.Six-point Gauge Stability: The design delivers near six-point contact with the borehole wall for unequalled bit stability that protects the cutting structure from damaging lateral blows
3.Seal and Lubrication: The bearing seal is adapting the high quality HNBR O-ring. The best seal compression and the radial seal structure can enhance the seal performance. The compensation system and the high quality bit grease can limit pressure differential, and greatly increase the lubricating reliability.
|Bit Size||IADC Code||API Connection||Recommended Parameters|
|in||mm||Rotary Speed (rpm)||Weight on bit (KN)|
|6"||152.4||517||3 1/2 Reg||60~-140||50~150|
|8 -1/2”||215.9||617||4-1/2’’API REG||60~-120||90~220|
|9 -1/2”||241.3||537||6-5/8’’API REG||50~120||120~260|
Air Drilling Bits
Feature and Applications
In hard formation with less water content,formation with serious leakage or with low pressure,in order to achieve higher ROP.air drilling process is usually adopted.The series bit foe air drilling which has structure features of center jet hole and enhanced head O.D.This bit with these features is suitable for drilling at air drilling application to increase observably ROP and life of the bits.
DFJ Series Metal Sealed Bearing Bit
DFX Series Rubber Sealed Bearing Bit
KXSeries Mining Tricone Rock Bits