89mm outer diameter reverse circulation drill pipe 3m long
Product Description:
Double-arm drill pipe is also called double-layer drill pipe. It consists of inner and outer drill pipes (called inner pipe and outer pipe). The inner and outer pipes form an annulus, which is a channel for pumping the flushing medium to the bottom of the hole during hydraulic rock drilling and center sampling drilling. The central hole of the inner tube is used to discharge the flushing medium and is integrally fixed, and the threaded button of the outer tube is connected between each double-wall drill pipe to ensure the transmission of torque and pressure.
Double wall drill pipe
| Type | O.D.of the outer tube (mm) | I.D.of the inner tube (mm) | Outer dianeter of joint (mm) | Type of threads | Effective length (m) |
| WK76/32 | 76 | 32 | 78 | 3" Remet | 3 |
| WK102/41 | 102 | 41 | 103 | 4" Remet | 3 , 6 |
| WK114/52 | 114.3 | 52 | 116 | 4 1/2" Remet | 3 , 6 |
| WK114/38 | 114.3 | 38 | 114.3 | 4 1/2" Metzke | 3 , 6 |
| WK114/50 | 114.3 | 50 | 114.3 | 4 1/2" Remet | 3 , 6 |
| WP50/20 | 50 | 20 | 50 | | 1 , 1.5 |
| WP73/35 | 73 | 35 | 73 | | 1 , 1.5 |
| WP89/40 | 89 | 40 | 89 | | 1 , 1.5 |
Advantage
This series of reverse circulation pipes can increase the permeability of the lost stratum, reduce the consumption of drilling fluid, protect the reservoir stratum, and save the cost of other consumable tools. In addition, the pipeline can be drilled in two directions to control the drilling. The reverse circulation kill method can transfer heavy mud directly to the bottom of the well without periodic circulation, saving time.
Our Services
1. Drill pipe strictly in accordance with ISO9001 standard
2. If you find a quality problem within one month of the package being returned.
3. All obligations and responsibilities are strictly performed in accordance with the contract
4. 24-hour online customer service, feel free to contact us.
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