API 7-1 Oilfield Spiral Drill Collar
Standard and Certification: API
Packing: export packing
Drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension.especially drill collar can keep drill bit centralized and hole track by large rigidity.drill collar are manufactured strictly API 7-1 standard
| Connection Style and Size | OD | ID | Length mm | DF mm | Bending ratio | ||
| mm | in | mm | in | ||||
| NC23 | 79.4 | 3 1/8 | 31.8 | 1 1/4 | 9150 | 76.2 | 2.57:1 |
| NC26 | 88.9 | 3 1/2 | 38.1 | 1 1/2 | 9150 | 82.9 | 2.42:1 |
| NC31 | 104.8 | 4 1/8 | 50.8 | 2 | 9150 or 9450 | 100.4 | 2.43:1 |
| NC35 | 120.7 | 4 3/4 | 50.8 | 2 | 9150 or 9450 | 114.7 | 2.58:1 |
| NC38 | 127 | 5 | 57.2 | 2 1/4 | 9150 or 9450 | 121 | 2.38:1 |
| NC44 | 152.4 | 6 | 57.2 | 2 1/4 | 9150 or 9450 | 144.5 | 2.49:1 |
| NC44 | 152.4 | 6 | 71.4 | 2 13/16 | 9150 or 9450 | 144.5 | 2.84:1 |
| NC44 | 158.8 | 6 1/4 | 57.2 | 2 1/4 | 9150 or 9450 | 149.2 | 2.91:1 |
| NC46 | 158.8 | 6 1/4 | 71.4 | 2 13/16 | 9150 or 9450 | 150 | 2.63:1 |
| NC46 | 165.1 | 6 1/2 | 57.2 | 2 1/4 | 9150 or 9450 | 154.8 | 2.76:1 |
| NC46 | 165.1 | 6 1/2 | 71.4 | 2 13/16 | 9150 or 9450 | 154.8 | 3.05:1 |
| NC46 | 171.4 | 6 3/4 | 57.2 | 2 1/4 | 9150 or 9450 | 159.5 | 3.18:1 |
| NC50 | 171.4 | 6 3/4 | 71.4 | 2 13/16 | 9150 or 9450 | 159.5 | 2.37:1 |
| NC50 | 177.8 | 7 | 57.2 | 2 1/4 | 9150 or 9450 | 164.7 | 2.54:1 |
| NC50 | 177.8 | 7 | 71.4 | 2 13/16 | 9150 or 9450 | 164.7 | 2.73:1 |
| NC50 | 184.2 | 7 1/4 | 71.4 | 2 13/16 | 9150 or 9450 | 169.5 | 3.12:1 |
| NC56 | 196.8 | 7 3/4 | 71.4 | 2 13/16 | 9150 or 9450 | 185.3 | 2.70:1 |
| NC56 | 203.2 | 8 | 71.4 | 2 13/16 | 9150 or 9450 | 190.1 | 3.02:1 |
| 6 5/8REG | 209.6 | 8 1/4 | 71.4 | 2 13/16 | 9150 or 9450 | 195.7 | 2.93:1 |
| NC61 | 228.6 | 9 | 71.4 | 2 13/16 | 9150 or 9450 | 212.7 | 3.17:1 |
| 7 5/8REG | 241.3 | 9 1/2 | 76.2 | 3 | 9150 or 9450 | 223.8 | 2.81:1 |
| NC70 | 247.6 | 9 3/4 | 76.2 | 3 | 9150 or 9450 | 232.6 | 2.57:1 |
| NC70 | 254 | 10 | 76.2 | 3 | 9150 or 9450 | 237.3 | 2.81:1 |
| 8 5/8REG | 279.4 | 11 | 76.2 | 3 | 9150 or 9450 | 266.7 | 2.84:1 |
信息
职位类型
出售
条件
新
地点
China
上传的帖子
6个月前
