FLRT Bit
| Supply Ability | 200pcs per quarter |
| Delivery Time | 5~45 workdays |
| Packaging Details | plywood box / iron box |
| Bearing Type | Rubber Sealed Roller Bearing With Gauge Protection |
| Cutting Material | TCI |
| Standard | API-7-1, ISO 9001:2008 |
| Series | FA |
| Application 1 | Oil well drilling |
| Application 2 | HDD drilling |
| Application 3 | Geothermal well drilling |
| IADC | 437 |
| Formation | Soft |
| Color | Blue |
| TCI | Tungsten Carbide Insert |
| Brand Name | FLRT |
| Model Number | 12 1/4 FJ537GT |
| Certification | API-7-1 , ISO 9001:2008 |
| Place of Origin | China |
View Detail Information
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Product Specification
| Supply Ability | 200pcs per quarter | Delivery Time | 5~45 workdays |
| Packaging Details | plywood box / iron box | Bearing Type | Rubber Sealed Roller Bearing With Gauge Protection |
| Cutting Material | TCI | Standard | API-7-1, ISO 9001:2008 |
| Series | FA | Application 1 | Oil well drilling |
| Application 2 | HDD drilling | Application 3 | Geothermal well drilling |
| IADC | 437 | Formation | Soft |
| Color | Blue | TCI | Tungsten Carbide Insert |
| Brand Name | FLRT | Model Number | 12 1/4 FJ537GT |
| Certification | API-7-1 , ISO 9001:2008 | Place of Origin | China |
| High Light | tungsten carbide drill bits ，oil well drill bit | ||
FA437G , TCI Tricone Bit , TCI Roller Cone Bit , Sealed Friction Bearing , Vertical Well Drilling , HDD Drilling
SIZE AVAILABLE
Form 3 7/8inch to 18 1/2inch
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
| Types & IADC Code | 417 |
437 447 |
517 527 |
537 547 |
617 627 |
637 | |
| WOB | KN/mm(Bit Dia.) | 0.4~0.9 | 0.4~0.9 | 0.35~1.0 | 0.5~1.0 | 0.6~1.1 | 0.7~1.2 |
| Lb/in. (Bit Dia.) | 2285~5142 | 2285~5142 | 2000~5714 | 2857~5714 | 3428~6285 | 4000~6857 | |
| Rotation Speed (Rpm) | 140~60 | 140~60 | 125~50 | 110~50 | 100~40 | 80~40 | |
The above chart represents commonly available sizes and types, we do produce other sizes and types of rock bits which do not appear on this list. Please contact us for more information.
ROLLER CONE BIT FLUID CIRCULATION
Drilling fluid passes from the drillstring and out through nozzles in the bit. As it passes across the face of the bit it carries the drilled cutting from the cones and into the annulus. The original design for rock bits only allowed the drilling mud to be ejected from the middle of the bit . This was not very efficient and led to a build up of cuttings on the face of the bit (bit balling) and cone erosion. A more efficient method of cleaning the face of the bit was therefore introduced. The fluid is now generally ejected through three jet nozzles around the outside of the bit body . The turbulence created by the jet streams is enough to clean the cutters and allow efficient drilling to continue.
Journal bearing
- The bearing load carrying surface
- Journal angle is the angle formed by a line perpendicular to the axis of the journal and the axis of the bit
- Magnitude affect the size of the cone
- Increase in angle decrease cone size
- The smaller the angle the greater the gouging and scraping action
- Optimum journal angle for soft and hard rock bits are 33 and 36
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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