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| Place of Origin: | China |
| Brand Name: | MIROC |
| Certification: | ISO |
| Model Number: | TCI 15 3/4" IADC 637 Tricone Bit |
| Minimum Order Quantity: | 1 |
|---|---|
| Price: | Negotiation |
| Packaging Details: | Standrad export packaging or customized |
| Delivery Time: | 15-20 days |
| Supply Ability: | 20000pcs per month |
| Type: | Rotary Drill Bit | Materail: | Alloy Steel |
|---|---|---|---|
| Use: | Waterwell Drilling， Oil Drilling | Machine Type: | Drilling Rig |
| IADC Code: | 637 | Diameter: | 400mm |
| Formation: | Medium Hard To Very Hard | Color: | Blue, Golden, Or Customised |
| Packing: | Wooden Case | ||
| High Light: | iadc 637 tci bit,very hard rock drilling tricone bits,400mm tricone bits |
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Product Description
Roller cone bits is the most important drilling tools in oil and gas, water, geothermal industry. Drill bit is the lowest of all teh drilling tools and quipment, which is connected with near-bit stabilizer.
Tricone bits are used in general to drill a wide variety of rocks, Medium hard with compressive strength and thick and hard stringers ,such as limestone, hard shale, mudstone and sandstone, etc.
Type: Tungsten Carbide Insert (TCI) Bits and Milled-tooth Bits
IADC Code is very important code for us to quote you as it is a three-digit application-related code, which will indicate the working environment, working condition.
|
IADC code |
Applicable Formation | Main characteristics of the bit | Recommended parameters | |
| Cutting structure |
Normal WOB kN/mm (bit dia.) |
Rotary speed (rpm) |
||
| 117 |
Very soft with low compressive strength and high drillability, such as soft shale , clay and salt bed,etc |
Hardfaced gage and all tooth surfaces, the gage fitted with compacts for enhanced gage protection , and a row of trimmers is added between gage row and heel row |
0.30~0.9. | 300~80 |
|
127 /137 |
Soft with low compressive strength and high drillability, such as sale ,clay,salt bed and soft limestone,etc |
Hardfaced gage and all tooth surfaces, the gage fitted with compacts for enhanced gage protection ,and a row of trimmers is added between gage row and heel row |
0.30~0.9. | 300~80 |
|
427 / 437 |
Very soft formations with low compressive strength and high drillability,such as clay,mudstone,chalk, gypsum,salt,soft limestone, etc. |
Large dia. Offset crested.scoop compacts in inner row,wedge compacts in outer row , high compact exposure, inequable spaced compacts arrangement,and a row of trimmers is added between gage row and heel row |
0.35~0.90 | 280~70 |
|
447 / 517 / 527 |
Soft formations with low compressive strength and high drillability,such as mudstone,gypsum, salt,soft limestone, etc. |
Large dia. Offset crested.scoop compacts in inner row,wedge compacts in outer row , high compact exposure, inequable spaced compacts arrangement,and a row of trimmers is added between gage row and heel row |
0.35~1.05 | 240~50 |
|
537 /547 |
Medium soft with low compressive strength and harder abrasive stringers, such as hard shale, mudstone ,soft limestone and sandstone,etc |
Large radius scoop compacts in inner row, wedge compacts in outer row, inequable spaced compacts arrangement , and a row of trimmers is added between gage row and heel row |
0.50~1.05 | 220~40 |
|
617 /627 /637 |
Medium hard with compressive strength and thick and hard stringers , such as limestone ,hard shale,mudstone and sandstone,etc. |
Conical compacts in inner row,spherical compacts in outer row,and a row of trimmers is added between gage row and heel row |
0.50~1.10 | 220~40 |
| 737 |
Hard formation with high abrasiveness ,such as hard limestone, dolomite, hard sandstone and chert,etc |
Large radius conical compacts in inner row , spherical compacts in outer row , and a row of trimmers is added between gage row and heel row. |
0.50~1.20 |
200~40 |
Advantages of our products:
Specifications:
| Product Parameter | |
| Bit Size | 15 3/4 "(400MM) |
| IADC Code | IADC 637 |
| Connection | 6 5/8 inch API REG PIN |
| Nozzle Qty | 3NZ |
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988
