钻井套管尺寸与钻头尺寸的选择.doc

钻井套管尺寸与钻头尺寸的选择目前我国使用最多或者说是唯一的套管钻头系列是：（26）20 （17 1/2）13 3/8（12 1/4）9 5/8（8 1/2）7（5 7/8）4 1/2套管和井眼尺寸的确定一般是由内到外进行，首先根据采油工程等方面的要求确定油层套管的尺寸，然后确定与油层套管相匹配的钻头。套管与井眼之间的间隙与井身质量、固井水泥环强度要求、下套管时的井内波动压力、套管尺寸等因素有关。最小间隙为9.5mm，最大间隙达76mm。目前，根据套管层次不同，已基本形成了较稳定的系列套管：优质无缝钢管。一端为公扣，直接车在管体上；一端为带母扣的套管接箍。套管的尺寸系列：API标准套管：4 1/2“，5”，5 1/2“，6 5/8”，7“， 7 5/8”， 8 5/8“，9 5/8，10 3/4，11 3/4，13 3/8，16，18 5/8，20；共14种。壁厚：5.2116.13 mm。套管的钢级API标准：H-40，J-55，K-55，C-75，L-80，N-80，C-90，C-95，P-110，Q-125。（数字1000为套管的最小屈服强度 kpsi）。连接螺纹的类型API标准：短圆（STC）、长圆（LTC）、梯形（BTC）、直连型（XL）套管柱：由同一外径、不同钢级、不同壁厚的套管用接箍连接组成的管柱。特殊情况下也使用无接箍套管柱钻杆尺寸：规格外径Size名义重量Nominal massLb/ft计算重量Calculated weight Wpe钢级Grade壁厚Wall thickness加厚形式 ( 见注 )Upset ends (See note) for weld-on tool jointin.mmlb/ftkg/min.mm2 3/860.36.656.269.32E,X,G,S0.2807.11EU2 7/873.010.49.7214.48E,X,G,S0.3629.19EU 、 IU3 1/288.99.508.8113.12E0.2546.45EU 、 IU3 1/288.913.3012.3118.34E,X,G,S0.3689.35EU 、 IU3 1/288.915.5014.6321.79E0.44911.40EU 、 IU3 1/288.915.5014.6321.79X,G,S0.44911.40EU 、 IEU4101.614.0012.9319.26E,X,G,S0.3308.38EU 、 IU4 1/2114.313.7512.2418.23E0.2716.88EU 、 IU4 1/2114.316.6014.9822.31E,X,G,S0.3378.56EU 、 IEU4 1/2114.320.0018.6927.84E,X,G,S0.43010.92EU 、 IEU5127.016.2514.8722.15X,G,S0.2967.52IU5127.019.5017.9326.71E0.3629.19IEU5127.019.5017.9326.71X,G,S0.3629.19EU 、 IEU5127.025.6024.0335.79E0.50012.70IEU5127.025.6024.0335.79X,G,S0.50012.70EU 、 IEU5 1/2139.721.9019.8129.51E,X,G,S0.3619.17IEU5 1/2139.724.7022.5433.57E,X,G,S0.41510.54IEU1、钻杆公称尺寸外径Dmm壁厚tmm管体长度L1m钻杆长度Lm钢极管端加厚型式1级长度2级长度3级长度60.37.116.16. 78.29.111.613.7L1+0.521E,X,G,SEU73.09.196.16. 78.29.111.613.7L1+0.557E,X,G,SIU或EU88.96.456.16. 78.29.111.613.7L1+0.595EIU或EU88.99.356.16. 78.29.111.613.7L1+0.620E,X,G,SIU或EU88.911.406.16. 78.29.111.613.7L1+0.620E,X,G,SIUEU或IEU101.68.386.16. 78.29.111.613.7L1+0.582E,X,G,SIU或EU114.36.886.16. 78.29.111.613.7L1+0.582EIU或EU114.38.566.16. 78.29.111.613.7L1+0.582E,X,G,SEU或IEU114.310.926.16. 78.29.111.613.7L1+0.582X,G,SEU或IEU127.07.526.16. 78.29.111.613.7L1+0.582E,X,G,SIU127.09.196.16. 78.29.111.613.7L1+0.582或L1+0.607E,X,G,SIEU或EUEU或IEU127.012.706.16. 78.29.111.613.7L1+0.582或L1+0.607E,X,G,SEU或IEUEU或IEU139.79.176.16. 78.29.111.613.7L1+0.607E,X,G,SIEU139.710.546.16. 78.29.111.613.7L1+0.607E,X,G,SIEU168.38.386.16. 78.29.111.613.7L1+0.607E,X,G,SIEU168.39.196.16. 78.29.111.613.7L1+0.607E,X,G,SIEU注：IU为内加厚，EU为外加厚，IEU为内外加厚。2、加重钻杆公称尺寸型号外径C内径E长度LmmmJZ50-NC50-127.076.29.3JZ45-NC46-114.371.49.3JZ40-NC40-101.663.59.3JZ35-NC38-88.950.89.3JZ50-NC50-127.076.213.5JZ45-NC46-114.371.413.53、钻铤公称尺寸型 号外径D内径d长度LmmmZTNC23-31LTNC233179.431.89.15ZTNC26-35LTNC26-35(2 3/8IF)88.938.19.15ZTNC31-41LTNC31-41(2 7/8IF)104.850.89.15ZTNC35-47LTNC35-47120.750.89.15ZTNC38-50LTNC38-50(3 1/2IF)127.057.29.15ZTNC44-60LTNC44-60152.457.29.15或9.45ZTNC44-60LTNC44-60152.471.49.15或9.45ZTNC44-62LTNC44-60158.857.29.15或9.45ZTNC46-62LTNC46-62(4IF)158.871.49.15或9.45ZTNC46-65LTNC46-65(4IF)165.157.29.15或9.45ZTNC46-65LTNC46-65(4IF)165.171.49.15或9.45ZTNC46-67LTNC46-67(4IF)171.457.29.15或9.45ZTNC50-70LTNC50-70(4 1/2IF)177.857.29.15或9.45ZTNC50-70LTNC50-70(4 1/2IF)177.871.49.15或9.45ZTNC50-72LTNC50-72(4 1/2IF)184.271.49.15或9.45ZTNC56-77LTNC56-77196.871.49.15或9.45ZTNC56-80LTNC56-80203.271.49.15或9.45ZT6 5/8 REG-82LT6 5/8REG-82209.671.49.15或9.45ZTNC61-90LTNC61-90228.671.49.15或9.45ZT7 5/8 REG-95LT7 5/8REG-95241.376.29.15或9.45ZTNC70-97LTNC70-97247.676.29.15或9.45ZTNC70-100LTNC70-100254.076.29.15或9.45ZTNC77-110LTNC77-110279.076.29.15或9.454、方钻杆的公称尺寸4.1四方钻杆的公称尺寸对边宽DFL对角宽DC内径d最小壁厚t总长度Lm驱动部分长度LDmmm标准选择标准选择63.583.331.811.512.2011.2876.2100.044.511.512.2011.2888.9115.157.211.512.2011.28108.0141.371.412.112.2016.4611.2815.55133.4175.482.616.012.2016.4611.2815.554.2六方钻杆的公称尺寸对边宽DFL对角宽DC内径d最小壁厚t总长度Lm驱动部分长度LDmmm标准选择标准选择76.285.731.812.112.2011.2888.9100.844.513.312.2011.28108.0122.257.216.012.2011.28133.4151.776.216.012.2016.4611.2815.55133.4151.782.616.012.2016.4611.2815.55152.4173.088.916.012.2016.4611.2815.555、外加厚油管及其接箍公称尺寸外径D壁厚t内径d管体长度Lm加厚部位外径D4加厚部位长度Leu接箍外径W接箍最小长度NL钢级1级长度2级长度标准与特殊倒角特殊间隙26.72.8721.06.108.538.539.7533.460.342.282.6C,H,J,N,L33.43.3826.66.108.538.539.7537.363.548.388.9C,H,J,N,L42.23.5635.16.108.538.539.7546.066.755.995.2C,H,J,N,L48.33.6840.96.108.538.539.7553.268.363.598.4C,H,J,N,L60.34.8350.66.108.538.539.7565.9101.677.873.9123.8C,H,J,N,L,P60.36.4547.76.108.538.539.7565.9101.677.873.9123.8C,N,L,P73.05.5162.06.108.538.539.7578.6108.093.287.9133.4C,H,J,N,L,P73.07.0159.06.108.538.539.7578.6108.093.287.9133.4C,N,L,P73.07.8257.46.108.538.539.7578.6108.093.287.9133.4C,N,L,P8