钻井知识 1钻井接头尺寸表钻井 2008-06-01 10:12:33 阅读 480 评论 0 字号：大中小 订阅 扣型公扣小端外 径 (毫米)扣型母扣端部台肩 内 径(毫米)231 45.17 230 65.1231 54.2 230 78.6331 64.89 330 91.3431 90.46 430 119.9531 110.2 530 142.8正规631 130.02正规630 154.7221 70.08 220 94.5321 77.44 320 103.9421 96.21 420 124.11521 126.78 520 150.5贯眼621 150.37贯眼620 174.1特殊 4A11 105 特殊 4A10 122211 60.35 210 74.45211 71.44 210 88311 84.98 310 103.19411 114.3 410 134.94511 141.29 510 164.3内平611 168.28内平610 190.6国内现场叫法API 扣型 每英寸扣数公扣小头直径mm母扣台肩内径 mm211×210211×210311×310NC26=23/8"IFNC31=27/8"IFNC38=31/2IFNC40=4FH444460.3571.3185.0689.6674.6187.71103.58110.334A11×4A10411×410NC44NC46=4IFNC50=41/2IFNC5644498.42103.73114.30117.5119.06124.61134.91150.81NC61NC70NC77444126.6147.65161.85165.1187.33204.79 231×230331×331431×43023/8REG27/8REG31/2REG41/2REG555547.6253.9765.0790.5768.277.7890.48119.06531×530631×630731×731831×83051/2REG65/8REG75/8REG85/8REG4444110.06131.03144.47167.84141.68153.99180.18204.39321×320421×420521×520621×62031/2FH4〞 FH=NC4041/2FH51/2FH65/8FH5454477.6289.6696.31126.79150.37102.79110.33123.83150.02173.83211×210211×210311×31023/8IF=NC2627/8IF=NC3131/2IF=NC3844460.3571.3185.0674.6187.71103.584A11×4A10411×410511×5104〞 IF=NC4641/2IF=NC5051/2IF444103.73114.30141.32124.61134.91163.91。