Spiral drill collars
Product Details
Spiral drill collars are widely used because of their maintenance features. The special grooves decrease the volume of the contact between the well side and the pipe. It leads to the decrease
of the tack of the pipe and to turning of the drill pipe string.
The weight of round drill collars will be reduced approximately 4-6% by spiral conversion.
Spiral drill collars are one kind of the products of our company. Spiral grooves make mud circulate freely around the drill coll
- Grade:AISI 4145H
- Welded Line Type:Spiral
- Place of Origin:Shanxi China (Mainland)
- Outer Diameter:120.7
- Country:China (Mainland)
- telephone:86-354-4602448
| Grade: | AISI 4145H |
| Welded Line Type: | Spiral |
| Place of Origin: | Shanxi China (Mainland) |
| Outer Diameter: | 120.7 |
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