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" FG435G , Tricone Rock Bit , Water Well Drilling Bit , 311.2mm TCI Bit
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 | |
The bits are further classified based on their internal bearings.
Each bit has three rotating cones and each one will rotate on its
own axis during drilling. While the bits are fixed to the drilling
rigs, the rotation of the drill pipe will be in a clockwise
direction and the roller cones are rotated in an anti-clockwise direction. Each roller cone is
rotated on its own axis with the help of the bearing. Again, the
bearings are classified mainly into three types: Open bearing bits, Sealed Bearing Bits and Journal Bearing bits.
