常规钻杆的尺寸、单位重量双台肩高抗扭钻杆接头型号 接头外 径 接头内 径 公螺纹长 度 节径 副台肩扭 矩 主台肩扭 矩 提高百分 比NC26 3 3/8 1 3/4 3 2.668 2066 6875 30%NC31 4 1/84 3/821 5/83 1/23 1/23.8133.18350207150133891717037%42%NC38 5552 9/162 7/163 1/84443.8083.8083.808642879081117420326222132651532%36%42%NC40 5 3/85 1/45 1/26 1/22 7/162 9/162 1/42 7/164 1/24 1/24 1/24 1/24.0724.0724.0724.07211150962313245111502993027760329433011437%35%40%37%NC46 666 1/46 1/46 1/46 1/43 1/4332 3/42 1/22 1/44 1/24 1/24 1/24 1/24 1/24 1/24.6264.6264.6264.6264.6264.62610451148981489818860223522538933625392293965944871496305393631%38%38%42%45%47%NC50 6 5/86 5/86 5/86 5/86 5/83 3/43 1/23 1/432 3/44 1/24 1/24 1/24 1/24 1/25.0425.0425.0425.0425.0421095616678218592651330656376764467351447578006340629%37%42%46%48%5-1/2FH 777 1/47 1/47 1/23 3/43 1/23 1/23 1/43555555.5915.5915.5915.5915.5912518531214290003667241571603386033872480761568734142%52%41%48%48%主台肩扭矩值为 API 标准接头抗扭矩值副台肩扭矩值双台肩纸杆接头增加的抗扭值加重钻杆参数管体 接头加厚尺寸规格外径(mm)内径(mm) 中部(mm)端部(mm)螺 纹 类 型RSC type外径(mm)内径(mm)倒角直径(mm)单根质量Kg/Piece3 1/2 88.9 57.4 101.6 98.4 NC38 127.0 52.4 116.3 3123 1/2 88.9 57.2 101.6 98.4 NC38 127.0 57.2 116.3 2824 101.6 65.1 114.3 106.4 NC40 133.4 65.1 127.4 3704 1/2 114.3 69.9 127.0 119.1 NC46 158.8 69.9 145.3 5585 127.0 76.2 139.7 130.2 NC50 168.3 76.2 154.0 6725 1/2 139.7 92.1 152.4 144.5 5 1/2FH 184.2 92.1 170.7 7766 5/8 168.3 114.3 184.2 176.2 6 5/8FH 203.2 144.3 195.7 964。