Hunan Tianying Drilling Machine Manufacturing Co., Ltd.
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 15000 pieces per year |
| Delivery Time | 5-10 work days |
| Packaging Details | wooden case |
| Brand Name | Tianying |
| Model Number | IADC137 8-1/2'' |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 15000 pieces per year |
| Delivery Time | 5-10 work days | Packaging Details | wooden case |
| Brand Name | Tianying | Model Number | IADC137 8-1/2'' |
| Place of Origin | China | ||
| High Light | rotary roller drill bit ，water well bits | ||
Rubber Sealed Milled Tooth Tricone Roller Bit 8-1/2" IADC137 For Oil Well
Cutting Structure
The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.
Gauge Structure
Multiple gauge protection with gauge trimmers on the heel of cone,tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
Bearing Structure
High precision journal bearing with two thrust faces.Balla lock the cone.Hardfaced head bearing surfaces.Cone bearing inlaid with friction-reducing alloy and then silver-plated.Abrasion resistance and seizure resistance of the bearing are improved.
Seal and Lubrication
Premium HNBR O-ring.optimal seal compression and curved seal structure can enhance the seal performance .The pressure compensator system and advanced grease can greatly increase the lubricating rellability.
Product Application
It can receive high WOB in the conventional drilling.It is suitable for various formations by matching cutting structure with different tooth shape,tooth density ans tooth exposure height.
Recommended Drilling Parameters
| IADC |
WOB (weight on bit dia) |
RPM (R/Min) |
Application Formation |
| 116 117 | 0.35-0.8 | 150-80 |
Very soft formations with low compressive strength and high drillability.such as clay.mudstone.chalk.etc. |
| 126 127 | 0.35-0.9 | 150-70 |
Soft formations with low compressive strength and high drillability,such as mudstone,gypsum salt.soft shale.soft limestone.etc. |
| 136 137 | 0.35-1.0 | 120-60 |
Soft to medium soft formations with low compressive strength and high drillability,such as medium soft shale.anhydrite.medium soft limestone,medium soft sandstone.soft formation with harder interbed,etc. |
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1958
Total Annual:
8000000-10000000
Employee Number:
100~200
Ecer Certification：
Site Member
Professional. Duarable, Efficient, TIANYING TCI Tricone Bit! Hunan Tianying Drilling Machine Manufacturing Co., Ltd.is one state-appointed factory of mining tools especially for tricone bit. we are established in 1958 and located at Zhuzhou city of Hunan provice. one fam... Professional. Duarable, Efficient, TIANYING TCI Tricone Bit! Hunan Tianying Drilling Machine Manufacturing Co., Ltd.is one state-appointed factory of mining tools especially for tricone bit. we are established in 1958 and located at Zhuzhou city of Hunan provice. one fam...
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