API spiral oilfield drill collar with hot rolling technique
drill collar, 1.OD:4"-11", 2.Material:AISI4145H, 3.Length:30ft,31ft, 4.MOQ: 25 Tons - details see: https://www.machineto.com/api-spiral-oilfield-drill-collar-with-hot-rolling-technique-10317645
| Place of Origin:Shaanxi China (Mainland) | Brand Name:Chang Gong | Model Number:4"-11" | Type:Drill Collar |
| Machine Type:Drilling Tool | Certification:API | Material:Carbon Steel | Processing Type:Forging |
| Use:Well Drilling |

Drill collar
1.OD:4"-11"
2.Material:AISI4145H
3.Length:30ft,31ft
4.MOQ: 25 Tons
1.We are a professional supplier of new and used (rebuilt) drill bits used for oil field ,
water well . Including tricone bits , PDC bits and drill bits.
2.
| 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 |

| Packaging Detail:IN bundle,All connections shall be equipped with pressed steel or plastic steel thread protectors. |
| Delivery Detail:According to the order |

