钻具常用参数.doc

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1、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

2、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）88.931/23

3、8.111/29.1582.9317/642.42:1NC31-41（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

4、/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

5、.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9.45185.3719/642.70:1NC56-80203.2871.4213/169.15或9.45190.1731/643

6、.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

7、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。2.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。3.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88.9mm(31/2″)104.8mm(41/8″)120.6mm(43/4″)158.7mm(61/4″)165.1mm(61/2″)177.8mm(7″)203.2mm(8″)228.6mm(9″)279.4mm(11″)公称内径38.150.8(57.15)50.871.471.471.4