钻具常用接头尺寸.doc

钻具常用接头尺寸常用接头本体扣型公 接 头母扣镗孔直径接头类型大端直径小头直径127mm（5”）钻杆、178 mm（7”）钻铤411*410133.5114.3134.91NC50/数字型4-1/2”IF内平型158mm(6-1/4”)钻铤4A11*4A10122.7103.73124.61NC46/数字型4”IF内平型88.9mm(3-1/2”),120.65mm(4-3/4”)钻铤311*310102.0085.06103.583-1/2”IF内平型73mm(2-7/8”)钻铤，104.78(4-1/8”)钻铤211*21086.1371.3187.712-7/8”IF内平型方钻杆公扣521*520147.95126.79150.025-1/2”FH贯眼型刮刀钻头扣，公母锥扣421*420121.7296.31123.834-1/2”FH贯眼型914.4mm（36“）钻头，914.4mm扩大器731*730177.8144.47180.187-5/8”REG正规型660.4mm（26“）钻头，731*730177.8144.47180.187-5/8”REG正规型444.5mm(17-1/2”)钻头，228.6mm(9”)钻铤731*730177.8144.47180.187-5/8”REG正规型346.1mm（13-5/8“）钻头，210mm动力钻具631*630152.19131.03153.996-5/8”REG正规型311.15mm(12-1/4”)钻头，203.2mm(8”)钻铤631*630152.19131.03153.996-5/8”REG正规型196.85mm(7-3/4”)动力钻具531*530140.21110.06171.45mm(6-3/4”)动力钻具，215.9mm(8-1/2”)钻头431*430117.4790.47119.064-1/2”REG正规型152.4mm(6”)钻头，120.65mm(4-3/4”)动力钻具331*33088.965.0790.493-1/2”REG正规型241.3mm（9-1/2”）钻头631*630210mm锻铣器4A11*4A10431*430203mm磨鞋431*430165mm钻铤4A11*4A10165mm MWD无磁短节411*410121mmMWD短节2A11*2A10444.5mm扶正器731*730310mm扶正器731*730214mm扶正器4A11*4A10158.8mm随钻震击器411*4104A11*4A10203mm随钻震击器631*630 常见组合：444.5mmBIT +SUB(730*730)228.6mmDC444mmSST+SUB(731*630)203.2mmDC311.1mmBIT +SUB(630*730)228.6mmDC241.3mmBIT+SUB(630*410)177.8mmDC210mm锻铣器430*4A10/4A11*410203mm 磨鞋431*410311.1mmSST731*630203.2mmDC120.65mm动力钻具331*310 (定向接头)。