Home > Products > Rock Bits > Rock Bits,Drilling Bits,6 1/2 inch,Tungsten Carbide Insert Tricone Bit(TCI),well drilling for oil and gas
Rock Bits,Drilling Bits,6 1/2 inch,Tungsten Carbide Insert Tricone Bit(TCI),well drilling for oil and gas
- TIANJIN/XINGANG CHINA
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Product Details
| Place of Origin | Hebei, China | Brand Name | New Field | |
| Model Number | as your order | Type | Center Drill Bit | |
| Material | Tungsten Carbide | Use | Well Drilling |
Product Description
1. Cutting Structure of this series tricone rock bit :
The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
2. Gauge Structure of this series tricone rock bit :
Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
3.Bearing Structure of this series tricone rock bit :
High precision bearing with two thrust faces. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.
4.Product Application of this series tricone rock bit :
It is suitable for downhole motor and high speed applications.
Size | Bit Type | |
In. | mm | |
6 | 152.4 | 4.7,517, 537, 617, 637 |
6 1/2 | 165.1 | 437,517,537,617,637 |
7 1/2 | 190.5 | 517, 537 |
8 1/2 | 215.9 | 437, 535,517, 537,617,637 |
9 1/2 | 241.3 | 437, 517,537,617,637 |
9 5/8 | 244.5 | 517,535,537 |
9 7/8 | 250.8 | 517,537 |
12 1/4 | 311.1 | 437, 517,535, 537,617,637 |
17 1/2 | 444.5 | 517,535,537 |
Rock formation | Bit type | Bit size | Drilling weight | Rotary speed | ||
mm | inch | kN/mm | r/min | |||
Very soft | Soft Marl, Clays, Sands, Salts etc. | 1 | 187.3~346.1 | 7 3/8~13 5/8 | 441~735 | 120~50 |
soft | Clays, Soft Shale, Marl, Sands, Salts etc. | 2 | 95.2~174.6 | 3 3/4-6 7/8 | 245-490 | 100-50 |
187.3~346.1 | 7 3/8-13 5/8 | 490-784 | 90-40 | |||
Medium soft | Shale, Marl, Sandstone, Soft Limestone etc. | 3 | 95.2~174.6 | 3 3/4-6 7/8 | 245-490 | 80-40 |
187.3~311.1 | 7 3/8- 12 1/4 | 490-784 | 80-40 | |||
medium | Hard Shale, Limestone, Medium/Hard Sandstone etc. | 4 | 95.2~174.6 | 3 3/4-6 7/8 | 294-539 | 80-60 |
187.3~241.3 | 7 3/8-9 1/2 | 539-833 | 60-40 | |||
medium hard | Hard Dolomite, Limestone, Hard Sandy, Rock etc. | 5 | 95.2~174.6 | 3 3/4-6 7/8 | 294-539 | 80-60 |
187.3~241.3 | 7 3/8-9 1/2 | 539-833 | 60-40 | |||
hard | Sandy, Shale, Quartzite, Hard Dolomite, Hard Sandstone etc. | 6 | 95.~-174.6 | 3 3/4-6 7/8 | 294-539 | 80-40 |
187.3-215.9 | 7 3/8-8 1/2 | 580-882 | 60-40 | |||
Very hard | Quartzite, Chert, Basalt Granites, Pyrites etc. | 7 | 95.2-174.6 | 3 3/4-6 7/8 | 294-539 | 80-40 |
Contact Us
- Hejian New Field Petroleum Machinery Co., Ltd.
- Contact nameSand Sa Chat Now
- Phone86-0317-3855009
- AddressJunziguan Village, Xicun Township
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