钻具常用参数.docx

钻铤、钻杆上扣扭矩表
钻头直径与对应钻铤尺寸推荐表
钻头外径mm钻铤外径mm120.679.3~88.9142.9~152.4104.7~120.6158.7~171.4120.6~127.0190.5~200.0127.0~158.7212.7~222.2158.7~177.8241.3~250.8177.8~203.2269.9177.8~228.6311.1228.6~254.0374.6228.6~254.0444.5228.6~279.4508.0~660.4254.0~279.4现场钻具推荐探伤周期表（注明：纯钻时间）
名称常规井
探伤周期水平井、大位移斜井、探井等复杂井探伤周期钻杆新钻杆2500±100h1500±100h一级钻杆1500±100h900±100h二级钻杆900±100h600±100h三级钻杆600±100h400±100h钻铤、加重钻杆、
转换接头、稳定器215mm以上井眼600±50h500±25h152mm及以下井眼400±50h300±25h方钻杆1000±100h800±100h钻铤的尺寸规格
钻铤螺纹尺寸外径内径长度台肩倒角直径参考弯曲
强度比mminmmiInmmminNC23-31（试行）79.431/831.811/49.1576.232.57:1NC26-35（23/8IF）88.931/238.111/29.1582.9317/642.42:1NC31-41（27/8IF）104.841/850.829.15100.4361/642.43:1NC35-47120.743/450.829.15114.7433/642.58:1NC38-50（31/2IF）127.0557.221/49.15121.0449/642.38:1NC44-60152.4657.221/49.15或9.45144.5511/162.49:1NC44-60152.4671.4213/169.15或9.45144.5511/162.84:1NC44-62158.861/457.221/49.15或9.45149.257/82.91:1NC46-62（4IF）158.861/471.4213/169.15或9.45150.0529/322.63:1NC46-65（4IF）165.161/257.221/49.15或9.45154.863/322.76:1NC46-65（4IF）165.161/271.4213/169.15或9.45154.863/323.05:1NC46-67（4IF）171.463/457.221/49.15或9.45159.569/323.18:1NC50-67（41/2IF）171.463/471.4213/169.15或9.45159.569/323.37:1NC50-70（41/2IF）177.8757.221/49.15或9.45164.7631/642.54:1NC50-70（41/2IF）177.8771.4213/169.15或9.45164.7631/642.73:1NC50-72（41/2IF）184.271/471.4213/169.15或9.45169.5643/643.12:1NC56-77196.873/471.4213/169.15或9.45185.3719/642.70:1NC56-80
203.2871.4213/169.15或9.45190.1731/643.02:165/8REG209.681/471.4213/169.15或9.45195.7745/642.93:1NC61-90228.6971.4213/169.15或9.45212.783/83.17:175/8REG241.391/276.239.15或9.45223.8813/162.81:1NC70-97247.693/476.239.15或9.45232.695/322.57:1NC70-100254.01076.239.15或9.45237.3911/322.81:185/8REG279.41176.239.15或9.45266.7101/22.84:1钻铤螺纹类型：NCXX-数字型，IF-内平型，REG-正规型，括号内螺纹类型可互换。
弯曲强度比：内螺纹危险断面抗弯截面模数与外螺纹危险断面抗弯截面模数之比。
NC50-67（41/2IF）仅适用于C型钻铤（无磁钻铤）。钻铤尺寸参数及工作参数
公称尺寸88.9
mm
(31/2″)104.8
mm
(41/8″)120.6
mm
(43/4″)158.7
mm
(61/4″)165.1
mm
(61/2″)177.8
mm
(7″)203.2
mm
(8″)228.6
mm
(9″)279.4
mm
(11″)公称内径38.150.8