Active Member
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[China]
Address: B2-0645 ROOM, CENTURY-TEA-TRADE-CENTER, NO.10 MALIANDAO ROAD, XUANWU DISTRICT, BEIJING, CHINA
Contact name:Jade
FLRT Bit |
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12 1/4" FSA126 , Milled Tooth Bit, TRC Bit , Hard Facing on Shirttail , Shallow Oil Well Drilling
Three cone bit principle features
- Three cutting cones, each fitted on a leg with suitable bearing
Legs are welded together to form the cylindrical section
- Section is threaded to make bin
- Each leg provided with an openings that can be reduced with
a nozzle to give high jetting fluid velocity
- Factors influencing the design are: type and hardness
of formation and size of drilled hole
- Formation hardness dictated the manufacture materials
- High content of nickel steel with molybdenum is used
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 | |
