8 1/4"Spiral drill collars(finished products)
Product Details:
| Welded Line Type | Spiral |
|---|---|
| Section Shape | Round |
| Application | Drill Pipe |
| Secondary Or Not | Is Secondary |
| Model Number | 209 |
| Specification | 209 |
| Grade | 4145H |
| Length | 9150 |
| Outer Diameter | 209 |
| Brand Name | HJ |
| Place of Origin | Shanxi, China (Mainland) |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 Piece/Pieces |
|---|---|
| Price: | FOB TIANJIN RMB 27500~28500 |
| Delivery Time: | finished products |
| Supply Ability: | 6 Piece/Pieces per Day |
Detailed Product Description
Spiral drill collars are one kind of the products of our company. Spiral grooves make mud circulate freely around the drill collar to equalize pressure and prevent a seal from forming. It reduces the occurrence of differential pressure sticking. Spiral prevents differential sticking without spiral.
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.
8 1/4"Spiral drill collars(finished products)
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Company Info
Shanxi Huanjie Petroleum Drilling Tools Manufacturing Co., Ltd.
[China (Mainland)]
[Verified Member]
City: Jinzhong
Province/State: Shanxi
Country/Region : China (Mainland)
Business Type:Manufacturer
Online Postings: Products