FLRT Bit
| Supply Ability | 300pcs per quarter |
| Delivery Time | 5~45 workdays |
| Packaging Details | plywood box / iron box |
| name | roller cone drill bit |
| Cutting Material | TCI |
| Standard | API-7-1, ISO 9001:2008 |
| Series | FA |
| IADC | 637G |
| Supplementary Features | G : Reinforced Gauge Protection |
| Shirttail | Alloy Hard Facing |
| Insert Shape | Conical |
| TCI | Tungsten Carbide Insert |
| Brand Name | FLRT |
| Model Number | 12 1/4" FG635G |
| Certification | API-7-1, ISO 9001:2008 |
| Place of Origin | China |
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Product Specification
| Supply Ability | 300pcs per quarter | Delivery Time | 5~45 workdays |
| Packaging Details | plywood box / iron box | name | roller cone drill bit |
| Cutting Material | TCI | Standard | API-7-1, ISO 9001:2008 |
| Series | FA | IADC | 637G |
| Supplementary Features | G : Reinforced Gauge Protection | Shirttail | Alloy Hard Facing |
| Insert Shape | Conical | TCI | Tungsten Carbide Insert |
| Brand Name | FLRT | Model Number | 12 1/4" FG635G |
| Certification | API-7-1, ISO 9001:2008 | Place of Origin | China |
| High Light | Well Drilling Tricone Rock Bit ，FG635G water well drill bits ，Tricone Rock Bit Gauge Protection | ||
12 1/4" FG637G , Well Drilling Bit , Sealed Roller Bearing , With Gauge Protection , Tricone Rock Bit , TCI Bit
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
| Types & IADC Code | 417 |
437 447 |
517 527 |
517 527 |
537 547 |
617 627 |
637
|
|
| WOB | KN/mm(Bit Dia.) | 0.4~0.9 | 0.4~0.9 | 0.35~1.0 | 0.35~1.0 | 0.5~1.0 | 0.6~1.1 | 0.7~1.2 |
| Lb/in. (Bit Dia.) | 2285~5142 | 2285~5142 | 2000~5714 | 2000~5714 | 2857~5714 | 3428~6285 | 4000~6857 | |
| Rotation Speed (Rpm) | 140~60 | 240~70 | 125~50 | ~60 | 110~50 | 100~40 | 80~4 | |
Direct hole bottom cleaning can involve the removal of discrete chips before they are re-ground or the erosion of rock flour, generated particularly by the action of blunt bit-teeth. In both these cases the hydraulics are working against chip hold-down forces related to the difference between the mud and pore pressurest . These can be reduced if the bit hydraulics limit the establishment of a low permeability skin on the hole bottom, thereby indirectly increasing the efficiency of hole bottom cleaning. It is expected that the removal of discrete chips will be controlled by the magnitude of the shear stresses and fluctuating pressures exerted on the chips by the flowing mud. On the other hand, the erosion of rock flour or mud cake will probably be controlled by the impact pressures on the hole bottom.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Year Established:
1992
Total Annual:
10000000-13000000
Employee Number:
150~200
Ecer Certification：
Site Member
Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd. is established in 1992 and located in Hebei Province, China. Integrated with Beijing Feilong International Trade Co., Ltd. and Beijing Superior Drilling Equipment Co., Ltd. , the company has involved into a comprehensive enterprise integrating... Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd. is established in 1992 and located in Hebei Province, China. Integrated with Beijing Feilong International Trade Co., Ltd. and Beijing Superior Drilling Equipment Co., Ltd. , the company has involved into a comprehensive enterprise integrating...
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