FLRT Bit
| Supply Ability | 200pcs per quarter |
| Delivery Time | 5~45 workdays |
| Packaging Details | plywood box / iron box |
| Bearing Type | Rubber Sealed Journal Bearing |
| Cutting Material | Milled Tooth |
| Standard | API-7-1, ISO 9001:2008 |
| Series | FSA |
| Application 1 | Oil well drilling / Gas well drilling |
| Application 2 | Geothermal well drilling |
| IADC | 127 |
| Brand Name | FLRT |
| Model Number | 12 1/4" FSG127G |
| Certification | API-7-1 , ISO 9001:2008 |
| Place of Origin | China |
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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 Journal Bearing |
| Cutting Material | Milled Tooth | Standard | API-7-1, ISO 9001:2008 |
| Series | FSA | Application 1 | Oil well drilling / Gas well drilling |
| Application 2 | Geothermal well drilling | IADC | 127 |
| Brand Name | FLRT | Model Number | 12 1/4" FSG127G |
| Certification | API-7-1 , ISO 9001:2008 | Place of Origin | China |
| High Light | tungsten carbide insert bit ，tungsten carbide drill bits | ||
12 1/4" FSG127G, Steel Tooth Bit , Well Drilling Bit , Sealed Journal Bearing , TCI Tricone Bit
SIZE AVAILABLE
From 5 7/8inch to 18 1/2inch
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 |
|
Roller Cone Bit Bearings
- Functions:
• Support radial load
• Support thrust or axial loads
• Secure the cone on the leg
- Supporting loads is achieved by outer and nose bearing
- Ball and friction bearings secure the cone on the leg
- Two different bearing are available: antifriction and friction
- Antifriction bearings or roller are two types: Roller-ball-roller (RBR), and roller-ball-friction
- RBR, nose roller; intermediate ball; and outer roller
- The ball secure the cone
- Size influenced by journal angle and cone size
- RBR suffers from spalling of the races of the pin
- RBR bit have short life
- Normally used with bit with diameter greater than 12.25 in with adequate space and in situation where high rotary speed is required
Application of Teeth and Tungsten Carbide Insert on Roller Cone Bit
- Length and geometry relate the rock strength
- Size of the cone and bearing structure affect the teeth
- Teeth design criteria are:
Spacing and interfitting of teeth governed by tooth strength, depth and included angle
Shape and length, dictated by formation characteristics
Types of teeth, milled or inserted
- Log slider and widely spaced teeth used for soft rock
- Long teeth allow results in breaking greater volume
- Wide spacing allows easy removal of drilled cuttings
- The included angle for soft rock from 39 to 42
- Medium hard would have a moderate number of teeth and 43 to 45 included angle
- Hard rocks need 45 to 50 included angle
- Milled teeth are faced with hardening metal to reduce wear
- Milled tooth bits are suitable for soft formation
- Insert are used for hard formation
- There are several types of insert to suit the hardness
- Chisel-shaped for soft rock
- Round or spherical for medium and hard rocks
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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