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drill collar·1.OD:4"-11"·2.Material:AISI4145H·3.Length:30ft,31ft·4.MOQ: 25 Tons
| Place of Origin | Shaanxi China (Mainland) | Model Number | 4"-11" |
|---|---|---|---|
| Type | Drill Collar | Machine Type | Drilling Tool |
| Certification | API | Material | Carbon Steel |
| Processing Type | Forging | Use | Well Drilling |
| Details | drill collar · 1.OD:4"-11" · 2.Material:AISI4145H · 3.Length:30ft,31ft · 4.MOQ: 25 Tons |
| Packaging Detail | IN bundle,All connections shall be equipped with pressed steel or plastic steel thread protectors. |
|---|---|
| Delivery Detail | According to the order |
Drill collar
1.OD:4"-11"
2.Material:AISI4145H
3.Length:30ft,31ft
4.MOQ: 25 Tons
We are "Petrochina" subcompany !
water well . Including tricone bits , PDC bits and drill bits.
| IADC | 147,437,447,517,527,537,547 (HJ or HA) |
| KN/mm | 0.5~1.20 |
| R/min | 100~50 |
| Applicable Formations/layer | Low compressive strength, soft , medium soft , hard, medium hard , very hard formation |
| Payment terms | T/T |
| Bearing sealed | metal sealed (HJ),rubber sealed(HA), not sealed(W) |
| Circulation system | Mud pump |
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