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1.Super Non-magnetic steel,etc·2.OD:79.4-279.4mm·3.Factory directly·4.API Spec.
| Place of Origin | Henan China (Mainland) | Model Number | DC1101 |
|---|---|---|---|
| Type | Drill Collar,Petroleum drill tools | Machine Type | Drilling Tool |
| Certification | API | Material | Carbon Steel |
| Processing Type | Forging | Use | Well Drilling |
| Condition | New | Usage | Oil Well |
| Details | 1.Super Non-magnetic steel,etc · 2.OD:79.4-279.4mm · 3.Factory directly · 4.API Spec. |
| Packaging Detail | Iron shelves or others suited seashipment. |
|---|---|
| Delivery Detail | 7-15 days after getting your prepayment or workable L/C. |
Non-magnetic Drill Collars
♦ The Petroleum drilling tools of Zhongzhong's mainly include Drill collars, Spiral drill collars, Non magnetic drill collars, Short drill collars, Drill tool stabilizers, Non magnetic drill tool stabilizers, Integral heavy weight drill pipes, etc.
♦ The details of Non magnetic Drill collar as follows,
1. Material: Non magnetic steel
2. Shape: It is the round pipe with smooth surface and thick wall, and the both ends are machined screw thread for connection.
3. Use: It is mainly used for the inspection in the process of petroleum drilling.
4. Standard: API Spec 7-1 or SY/T5144 Standard.
5. Inspection&Test: When producing, traceability are maintained from the receipt of raw material to completion of final products, and serial numbers are die stamped on each workpiece body. During each manufacturing process, inspection and test are performed.
6. Magnetic permeability(MPS=1×105/4∏A/m)
1. Average: Ur<1.010.
2. Magnetic Field Gradient: ΔB≤0.05μT.
7. Specification:
| Connections | OD mm | ID mm | Length mm | |
| NC23-31 | 79.4 | 31.8 | 9150 | |
| NC26-35 | 88.9 | 38.1 | 9150 | |
| NC31-41 | 104.8 | 50.8 | 9150 or 9450 | |
| NC35-47 | 120.7 | 50.8 | 915 or 9450 | |
| NC38-50 | 127.0 | 57.2 | 9150 or 9450 | |
| NC44-60 | 152.4 | 57.2 | 9150 or 9450 | |
| NC44-60 | 152.4 | 71.4 | 9150 or 9450 | |
| NC44-62 | 158.8 | 57.2 | 9150 or 9450 | |
| NC46-62 | 158.8 | 71.4 | 9150 or 9450 | |
| NC46-65 | 165.1 | 57.2 | 9150 or 9450 | |
| NC46-65 | 165.1 | 71.4 | 9150 or 9450 | |
| NC46-67 | 171.4 | 57.2 | 9150 or 9450 | |
| NC50-67 | 171.4 | 71.4 | 9150 or 9450 | |
| NC50-70 | 177.8 | 57.2 | 9150 or 9450 | |
| NC50-70 | 177.8 | 71.4 | 9150 or 9450 | |
| NC50-72 | 184.2 | 71.4 | 9150 or 9450 | |
| NC56-77 | 196.8 | 71.4 | 9150 or 9450 | |
| NC56-80 | 203.2 | 71.4 | 9150 or 9450 | |
| 6 5/8REG | 209.6 | 71.4 | 9150 or 9450 | |
| NC61-90 | 228.6 | 71.4 | 9150 or 9450 | |
| 7 5/8REG | 241.3 | 76.2 | 9150 or 9450 | |
| NC70-97 | 247.6 | 76.2 | 9150 or 9450 | |
| NC70-100 | 254.0 | 76.2 | 9150 or 9450 | |
| 8 5/8REG | 279.4 | 76.2 | 9150 or 9450 | |
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