17 1/2in IADC 117 API Tricone Bit for Oil Drilling(CHINA.WOLFNI)
●Sealed journal bearing
Journal bearing structure with head bearing hardfaced and cone bearing silver plated to improve load capacity and anti-galling ability of the bearing. More wear and high-temperature resistant highly saturated sealed journal bearing is used to improve reliability. Larger Sealed journal bearing reduces pressure on the seal, and the boss at outer end of the seal is also helpful for reliability of the seal.
Surface of the thrust bearing couple are specially treated for decreasing friction and increasing rigidness, load capacity of the bit and anti-galling ability of the bearing are consequently improved.
●Cutting structure
Hardfaced gage and tooth surfaces.
●Hardfacing on shirttail
This feature can provide better protection for seal and bearing to extend the bit’s service life.
◆Technical specifications
IADC Code | 117 | Bearing type | Rubber | Thread Connection | 6 5/8" API REG Pin |
Type | TCI | Seal type | Slide | Type of reinforcement | Alloy teeth |
Number of cones | 3 | Center water hole | NO | Weight | 287Kg |
Number of nozzles | 3 | Tooth shape | NO | package | Wooden box |
●Recommended operating parameters:
Bit Pressure: 0.4 ~ 0.85 KN
Rotary Speed: 60 ~ 180 r/min
Pumping Pressure: 8 ~ 18 Mpa
Sediment Concentration: < 0.5%
●The above parameters are only for reference. Optimized parameters are determined by drilling process and lithology of formations on site.
●Applicable formations:very soft, such as soft marl, clay, salt, etc.
In China
