钻杆接头粗细扣规范
钻杆接头粗细扣规范
| 类型 | 公称直径 | 数字型 | 接头外径 | 水眼 | 螺纹种类 | 每寸牙数 | 锥度 | 基面螺纹均直径 | 公接头 | 母接头 | ||||||||
| 扣型 | 螺纹小端外径 | 螺纹大端外径 | 扣长 | 扣型 | 螺纹始端外径 | 扩孔直径 | 扣长 | |||||||||||
| 英寸 | D | d | 2tgФ | C | Ds | Dl | Lpc | Qc | Lbc | |||||||||
| 数字
型 |
NC23 | 4 | 1:6 | 59.817 | 52.400 | 65.100 | 76.2 | 59.83 | 66.7 | 92.1 | ||||||||
| NC35 | 89.687 | 79.096 | 94.971 | 95.2 | 89.69 | 96.8 | 111.11 | |||||||||||
| NC44 | 112.192 | 98.425 | 117.475 | 114.3 | 112.2 | 119.1 | 130.2 | |||||||||||
| NC56 | 1:4 | 142.646 | 117.500 | 149.250 | 127.0 | 143.98 | 150.8 | 142.9 | ||||||||||
| NC61 | 156.921 | 128.600 | 163.525 | 139.7 | 158.25 | 165.1 | 155.6 | |||||||||||
| NC70 | 179.146 | 147.650 | 185.750 | 152.4 | 180.48 | 187.3 | 168.3 | |||||||||||
| NC77 | 196.621 | 161.950 | 203.200 | 165.1 | 197.93 | 204.8 | 181.0 | |||||||||||
| 正规 | 23/8 | 80 | 25.4 | 甲种 | 5 | 1:47°7´30″ | 60.080 | 2A31 | 47.625 | 66.675 | 76.2 | 2A30 | 61.423 | 68.3 | 92.1 | |||
| 27/8 | 95 | 32 | 69.605 | 231 | 53.975 | 76.200 | 88.9 | 230 | 70.948 | 77.8 | 104.8 | |||||||
| 31/2 | 108 | 38 | 82.293 | 331 | 65.075 | 88.900 | 95.3 | 330 | 83.635 | 90.5 | 110.1 | |||||||
| 41/2 | 140 | 58 | 113.800 | 431 | 90.475 | 117.475 | 108.0 | 430 | 112.211 | 119.1 | 123.8 | |||||||
| 51/2 | 172 | 70 | 乙种 | 4 | 1:4 | 132.944 | 531 | 110.058 | 140.208 | 120.7 | 530 | 133.630 | 141.7 | 136.5 | ||||
| 65/8 | 197 | 89 | 丙种 | 1:6 | 146.248 | 631 | 131.030 | 152.197 | 127.0 | 630 | 145.601 | 154.0 | 142.9 | |||||
| 75/8 | 225 | 102 | 乙种 | 1:4 | 170.549 | 731 | 144.475 | 177.800 | 133.4 | 730 | 171.235 | 180.2 | 149.2 | |||||
| 85/8 | 254 | 131 | 194.731 | 831 | 167.843 | 201.982 | 136.6 | 830 | 195.417 | 204.4 | 152.4 | |||||||
| 贯眼 | 23/8 | 64 | 36.5 | 甲种 | 5 | 1:4 | 64.059 | 2A21 | 51.604 | 70.654 | 76.2 | 2A20 | 65.402 | 72.3 | 92.1 | |||
| 27/8 | 108 | 54 | 85.480 | 221 | 69.850 | 92.075 | 88.9 | 220 | 86.823 | 94.5 | 104.8 | |||||||
| 31/2 | 113 | 62 | 94.844 | 321 | 77.622 | 101.443 | 95.3 | 320 | 96.187 | 102.8 | 111.1 | |||||||
| 4 | NC40 | 133 | 71 | 丁种 | 4 | 1:6 | 103.429 | 4A21 | 89.662 | 108.712 | 114.4 | 4A20 | 103.440 | 120.3 | 130.1 | |||
| 41/2 | 146 | 80 | 甲种 | 5 | 1:4 | 115.113 | 421 | 96.317 | 121.717 | 101.6 | 420 | 116.456 | 123.8 | 117.5 | ||||
| 51/2 | 178 | 101 | 丙种 | 4 | 1:6 | 142.011 | 521 | 126.797 | 147.955 | 127.0 | 520 | 141.364 | 150.0 | 142.9 | ||||
| 65/8 | 203 | 127 | 165.598 | 621 | 150.368 | 171.526 | 127.0 | 620 | 164.950 | 173.8 | 142.9 | |||||||
| 内平 | 23/8 | NC26 | 86 | 44.5 | 丁种 | 4 | 1:64°45´48″ | 67.767 | 2A11 | 60.350 | 73.050 | 76.2 | 2A10 | 67.778 | 74.6 | 92.1 | ||
| 27/8 | NC31 | 105 | 54 | 80.848 | 211 | 71.323 | 86.131 | 88.9 | 210 | 80.860 | 87.7 | 140.8 | ||||||
| 31/2 | NC38 | 121 | 68.3 | 96.723 | 311 | 85.065 | 102.006 | 101.6 | 310 | 96.734 | 103.6 | 117.5 | ||||||
| 4 | NC46 | 146 | 82.6 | 117.500 | 4A11 | 103.734 | 122.734 | 114.4 | 4A10 | 117.511 | 124.6 | 130.2 | ||||||
| 41/2 | NC50 | 155 | 95.3 | 128.059 | 411 | 114.300 | 133.350 | 114.4 | 410 | 128.070 | 134.9 | 130.2 | ||||||
| 51/2 | 185 | 122 | 157.201 | 511 | 141.326 | 162.484 | 127.0 | 510 | 137.212 | 163.9 | 142.9 | |||||||
| 65/8 | 212 | 145 | 184.173 | 611 | 168.260 | 189.456 | 127.0 | 610 | 184.186 | 192.0 | 142.9 | |||||||
