Blue Tricone Drill Bit 13 5/8" FSG515G IADC 515 For Medium Hard Formation
13 5/8" FSG515G, Rubber Sealed Roller Bearing with Gage Protection , Tricone Drill Bit , Medium Hard Formation
PRODUCT SPECIFICATIONGS
Bit Size : 13 5/8 inch ( 364.1 mm )
IADC : 515
SERIES : FG
Tooth type : ( TC I) Tungsten Carbide Insert
Connection : 6 5/8 inch API REG PIN
Nozzle Three jet(side) nozzles
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
|
Types & IADC Code |
415 |
435 445 |
515 525 |
535 545 |
615 625 |
635 | |
| WOB |
KN/mm (Bit Dia.) |
0.35~0.95 | 0.35~0.95 | 0.4~0.7 | 0.4~0.7 | 0.45~1.1 | 0.5~1.2 |
|
Lb/in. (Bit Dia.) |
2000~5428 | 2000~5428 | 2285~4000 | 2285~4000 | 2571~6285 | 2857~6857 | |
| Rotation Speed (Rpm) | 150~60 | 150~60 | 140~80 | 120~80 | 110~60 | 100~50 |
|
Lubrication of seals
Seals must be lubricated to prevent high wear rates and excessive temperatures that could lead to seal material failures. Lubricant for the bearings also lubricates the seals.
Lubricants
High drilling temperatures and high pressures in the lubrication system, together with the potential of exposure to water and chemicals, require high performance from lubricants. Most bit lubricants are specially formulated. Leading bit manufacturers employ scientists to develop and test lubricants. Better drill-bit lubricants are stable to temperatures > 300°F, and many function normally at temperatures down to ≈0°F.
They are hydrophobic (repel water) and retain their stability if water penetrates the bit. Quality lubricants are also resistant to chemicals commonly found in drilling fluids, are environmentally safe, and do not contain the lead additives that have traditionally helped resist high pressures.
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