api 7-1 spiral drilling collar
Price on request
Pricing is provided on request — use the quote form below.
- Port
- Tianjin Port
- Minimum Order Quantity
- 20 Ton/Tons
- Supply Ability
- 600 Piece/Pieces per Week
- Payment Terms
- L/C,T/T
Price on request
Pricing is provided on request — use the quote form below.
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Drill collar·1.standard:API7-1·2.OD:79.4mm-279.4mm·3.factory directly delivery·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.standard:API7-1 · 2.OD:79.4mm-279.4mm · 3.factory directly delivery · 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.standard:API7-1
2.OD:79.4mm-279.4mm
3.factory directly delivery
4.Moq: 25 tons
5.Certificates : ISO ,API 7-1
6.We are factory
We are "Petrochina " subcompany
Descriptions:
Drill collars is one of the most important product of hexin oil drillings which mainly used to provide bit weight to drill so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. GANG GONGbrand drill collars are manufactured strictly from API Spec7-1 standard.
Type | OD(mm) | ID(mm) | L(m) ±152.4mm d | DF(mm) ±0.4 |
NC23-31 | 79.4 | 31.8 | 9.14 | 76.2 |
NC26-35 | 88.9 | 38.1 | 9.14 | 82.9 |
NC31-41 | 104.8 | 50.8 | 9.14or9.45 | 100.4 |
NC35-47 | 120.6 | 50.8 | 9.14or9.45 | 114.7 |
NC38-50 | 127 | 57.2 | 9.14or9.45 | 121 |
NC44-60 | 152.4 | 57.2 | 9.14or9.45 | 144.5 |
NC44-60 | 152.4 | 71.4 | 9.14or9.45 | 144.5 |
NC46-62 | 158.8 | 57.2 | 9.14or9.45 | 149.2 |
NC46-62 | 158.8 | 71.4 | 9.14or9.45 | 150 |
NC46-65 | 165.1 | 57.2 | 9.14or9.45 | 154.8 |
NC46-65 | 165.1 | 71.4 | 9.14or9.45 | 154.8 |
NC46-67 | 171.4 | 57.2 | 9.14or9.45 | 159.5 |
NC50-70 | 177.8 | 57.2 | 9.14or9.45 | 164.7 |
NC50-70 | 177.8 | 71.4 | 9.14or9.45 | 164.7 |
NC50-72 | 184.2 | 71.4 | 9.14or9.45 | 169.5 |
NC56-77 | 196.8 | 71.4 | 9.14or9.45 | 185.3 |
NC56-80 | 203.2 | 71.4 | 9.14or9.45 | 190.1 |
6-5/8REG | 209.6 | 71.4 | 9.14or9.45 | 195.6 |
NC61-90 | 228.6 | 71.4 | 9.14or9.45 | 212.7 |
7-5/8REG | 241.3 | 76.2 | 9.14or9.45 | 223.8 |
NC70-97 | 247.6 | 76.2 | 9.14or9.45 | 232.6 |
NC70-100 | 254 | 76.2 | 9.14or9.45 | 237.3 |
8-5/8REG | 279.4 | 76.2 | 9.14or9.45 | 266.7 |
NC50-67 | 171.5 | 71.4 | 9.14or9.45 | 159.5 |
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