FLRT Bit
FLRT Bit - We supply the right bit!
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4 5/8" FSA216 , Steel Tooth Tricone Bit , Sealed FrictionBearing ,TRC Bit, Deep Section Well Drilling
PRODUCT SPECIFICATIONS
Bit Size: 4 5/8 inch ( 117.5 mm)
IADC: 216
SERIES: FA
Tooth type: Milled Tooth / Steel Tooth
Connection: 2 7/8 inch API REG PIN
Nozzle: three jet(side) nozzles
Bit Weight: 7 kgs
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
| Types & IADC Code |
116 117 |
126 127 |
136 137 |
216 217 |
246 247 |
326 327 |
|
| WOB | KN/mm(Bit Dia.) | 0.48~1.0 | 0.48~1.0 | 0.48~1.0 | 0.4~1.0 | 0.4~1.0 | 0.55~0.85 |
| Lb/in. (Bit Dia.) | 2742~5714 | 2742~5714 | 2742~5714 | 2285~5714 | 2285~5714 | 3140~4860 | |
| Rotation Speed (Rpm) | 160~80 | 150~70 | 130~60 | 100~60 | 80~50 | 60~45 | |
Rock bit classifications
- IADC prepared a comparison chart, in 1972
- Each bit is design by three code system
- First code classifies the cutting structure, 1-3 for teeth soft, medium and hard, 5-8 for insert, soft medium hard semi abrasive, extremely hard and abrasive, 4 for future
- Soft rock require long, slim and widely spaced teeth
- Medium requires short and less widely teeth
- Hard requires very short and closely spaced teeth
- Code 2 relates to formation hardness with division from 1to 4 from softest to hardest
- Code 3 for mechanical features of the bit, sealed non-sealed etc
- Major bit companies are Hughes, Security, Reed, and Smith
- Each company give there tables with IADC specifications