国产钻杆类型及识别方法.docx

钻杆接头按内径大小不同有下列三种：（1）正规接头：接头内径小于内加厚钻杆和外加后钻杆内径，泥浆流动阻力较 大但强度比其他类型接头高2）贯眼接头：接头内径河内加后钻杆内径相似，泥浆流动时阻力不大，流速 没有明显变化3）内平接头：接头内径和外加后钻杆内径相近似，泥浆流动阻力最小，因此多用于小钻杆，在涡轮钻、螺杆钻钻井中为充分发挥水马力，多采用内平接头内平、贯眼、正规接头直径比较表公称尺寸（寸）接头类型钻杆内 加后的 内径（mm）内平贯眼正规内径外径内径外径内径外径公接头母接头23/8(60mm)448625368040叫(73mm)54105541083245954031/2(89mm)681216211838581085441/2(114mm)951568014858781407959/16(141mm)122187101178709817210065/8(168)12720389122197127接头类型（尺寸和形式）的表示法类型代表符号公称尺寸（寸）接头代号国产API公接头母接头叫22122031/2321320贯眼GYFH41/242142059/16521520叫621620叫23123031/2331330正规ZGREG41/243143059/16531530叫631630叫211210内平NPIF31/231131041/2411410说明：接头代号表示的意义，第一位代表公称尺寸，第二位代表接头类型；第三位代表公扣母扣。

421中的4代表公称尺寸41/，2代表贯眼，1代表公接头2接头形式及尺寸(寸)接头外径锥度每寸扣数公接头母接头装配成 对体长粗扣 长水眼 直径倒角 面直 径体长水 眼 直 径长 度重 量1081 :452608854862605431/21181 :45275966210227562贯眼FH41/21461 :45300102801273158059/161781 :6434012710115435010165/82031 :64365127127181365127叫951 :452608832862604531/21081 :45275963810227558正规REG41/21401 :45305108581273057859/161721 :44340120701543409865/81971 :6436512789181365122叫1051 :642609054952605431/21211 :642801026811028068内平IF41/21561 :64310114951403109559/161871 :64340127122169340122接头类型及尺寸（寸）基面丝扣平均直径DG从母接头 断面到螺 纹末端的 距离不小 于（Gh）锥体部分直径公接头母接头大端（Dl）小端（Ds）螺纹内径（Dc）母口断面 镗孔直径（公差土0.5）Dt贯眼FH27/8 叫 41/2 59/16 叫85.48094.844115.113142.011165.5989510311013413492.075101.438121.709147.949171.53670.07577.43896.209126.782150.32986.82396.186116.457141.363164.95094.5103.9124.1150.5174.1正规REG叫41/259/16叫69.60582.693110.868132.944146.2489510311512713476.20088.887117.462140.195152.18654.20064.88790.462110.195131.01970.94883.635112.210133.629145.60078.691.3119.9142.8154.7内平IF叫41/259/1680.84896.732128.059157.2019811012213486.128102.003133.339162.48171.12885.003114.339141.31480.86096.735128.071157.21388.7104.6135.9165.01、钻杆公母接头细扣部分采用烘装上扣法与钻杆连接三牙轮钻头基本尺寸及代号钻头直径连接螺纹基本尺寸mm尺寸代号in95.23 3/42 3/8REG外螺纹104.843/8107.94 %120.643行2 7/8 REG外螺纹142.955/83 1/2 REG外螺纹149.257/8152.46158.761/4165.161/2171.46 3行190.571/24 1/2 REG外螺纹200.077/8212.783/8215.981/2222.281/4241.39 1/26 5/8 REG外螺纹244.595/8250.897/8269.9105/8298.411”4311.1⑵行342.913 1/2374.614*47 5/8 REG外螺纹393.715 1/2444.517 1/2508.0208 5/8 或 (7 5/8 )REG外螺纹609.624660.426石油钻铤尺寸参数表螺纹形式外径mm(in)内径mm名义重量kg/mNC26-35(2 3/8IF)88.9(3 1/2)38.140.2NC31-41(27/8IF)104.8(4 1/8)850.852.1NC35-47120.7(4 3/4)50.879NC38-50(3 1/2IF)127.0(5)57.279NC44-60152.4(6)57.2123.7NC44-60152.4(6)71.4111.8NC44-62158.8(61/4)57.2135.6NC46-62(4IF)158.8(61/4)71.4123.1NC46-65(4IF)165.1(6 1/2)57.2147.5NC46-65(4IF)165.1(6 1/2)71.4135.6NC46-67(4IF)171.4(63/』57.2160.9NC50-67(4 1/2IF)171.4(63/』71.4150.1NC50-70(4 1/2IF)177.8(7)57.2174.3NC50-70(4 1/2IF)177.8(7)71.4163.9NC50-72(4 1/2IF)184.2(71/4)71.4177.3NC56-77196.8(7 3/4)71.4207.1NC56-80203.2(8)71.4223.56 5/8REG8209.6(8 1/4)71.4238.4NC61-90228.6(9)71.4290.67 5/REG8241.3(9 1/2)76.2321.8NC70-97247.6(9 3/4)76.2341.2NC70-100254.0(10)76.23628 5/8REG8279.4(11)76.2445.5D=XX*2.54。