GB-石油用螺纹GB国标系统

GB~石油用螺纹GB国标系统GB9253.1～9253.7-88石油用螺纹THREADSFORPETROLEUMINSUSTRY技术科TECHNICALDEPARTMENT重庆新泰机械有限责任公司CHONGQINGXINTAIMECHINERYLTD.

图1：三角形螺纹尺寸注：1、机紧时，接箍或内螺纹的端面可紧至消逝点平面；2、关于井下工具的螺纹螺尾角度可按实际需要确定。图2：偏梯形形螺纹尺寸表1套管圆螺纹尺寸(CSG)螺纹代号大端大径D4基准距离L1有效螺纹长度L2管端至消逝点平面螺纹全长L4基面中径E1机紧后管端至接箍中心平面距离J接箍端面至基面的距离M接箍端孔直径Q接箍端孔深度q完整螺纹最小长度Lc手紧紧密距压数A适用的套管重量kg/m4-1/2-Ⅰ114.323.3943.5650.80111.84628.617.88116.712.722.22314.104-1/2-Ⅱ114.339.2759.4466.68111.84612.717.88116.712.738.10315.60～22.55-Ⅰ127.036.0956.2663.50124.54619.017.88129.412.741.27317.105-Ⅱ127.042.4462.6169.85124.54612.717.88129.412.741.27319.30～35.905-1/2139.745.6265.7973.02137.24612.717.88142.112.744.44320.80～34.206-5/8168.351.9772.1479.38165.82112.717.88170.712.750.80329.80～47.607-Ⅰ177.832.3953.0960.32175.34631.817.88180.212.731.74325.307-Ⅱ177.851.9772.1479.38175.34612.717.88180.212.750.80329.80～56.607-5/8193.753.4475.3182.55191.11412.718.01196.112.753.973-1/235.70～70.108-5/8-Ⅰ219.147.0968.9676.20216.51422.218.01221.512.747.623-1/235.708-5/8-Ⅱ219.156.6278.4985.72216.51412.718.01221.512.757.143-1/241.70～72.909-5/8-Ⅰ244.556.6278.4985.72241.91412.718.01246.912.757.143-1/248.10～79.60=1\*GB3①9-5/8-Ⅱ244.554.9178.4985.72241.80812.718.11246.912.757.14464.70～79.60=2\*GB3②10-3/4-Ⅰ273.040.7462.6169.85270.48931.818.01275.412.741.273-1/248.70=1\*GB3①10-3/4-Ⅱ273.059.7981.6688.90270.48912.718.01275.412.760.323-1/260.30～82.60=1\*GB3①10-3/4-Ⅲ273.058.0981.6688.90270.38312.718.11275.412.757.14475.90～97.80=2\*GB3②11-3/4-Ⅰ298.459.7981.6688.90295.88912.718.01300.812.760.323-1/262.50～89.30=1\*GB3①11-3/4-Ⅱ298.458.0981.6688.90295.78312.718.11300.812.757.14489.30=2\*GB3②13-3/8-Ⅰ339.759.7981.6688.90337.16412.718.01342.112.760.323-1/271.40～107.02=1\*GB3①13-3/8-Ⅱ339.758.0981.6688.90337.05812.718.11342.112.757.144101.20～107.20=2\*GB3②16406.472.4994.36101.60403.83912.718.01408.812.773.023-1/296.70～125.0018-5/8473.172.4994.36101.60470.51412.718.01475.512.773.023-1/2130.2020-Ⅰ508.072.4994.36101.60505.43912.718.01510.412.773.023-1/2140.0=3\*GB3③20-Ⅱ508.070.7994.36101.60505.33312.718.11510.412.757.144140.0～198.1=4\*GB3④备注：1.螺纹每英寸牙数为8牙；2.螺纹锥度为1:16；3.Ⅰ、Ⅱ、Ⅲ各代号是区分适用于不同公称质量的套管和不同螺纹长度的同一尺寸的套管螺纹；=1\*GB3①适用低于P110钢级的接箍；=2\*GB3②适用于P110和更高钢级的接箍；=3\*GB3③适用低于J55和K55钢级的接箍；=4\*GB3④适用于J55、K55和更高钢级的接箍。

表2套管长圆螺纹尺寸(LCSG)螺纹代号大端大径D4基准距离L1有效螺纹长度L2管端至消逝点平面螺纹全长L4基面中径E1机紧后管端至接箍中心平面距离J接箍端面至基面的距离M接箍端孔直径Q接箍端孔深度q完整螺纹最小长度Lc手紧紧密距压数A4-1/2114.3114.368.9676.20111.84612.717.88116.712.747.6235127.0127.079.4985.72124.54612.717.88129.412.757.1435-1/2139.7139.781.6688.90137.24612.717.88142.112.760.3236-5/8168.3168.391.1998.42165.82112.717.88170.712.769.8437177.8177.894.36101.60175.34612.717.88180.212.773.0237-5/8193.7193.797.54104.78191.11412.718.01196.112.776.203-1/28-5/8219.1219.1107.06114.30216.51412.718.01221.512.785.723-1/29-5/8-Ⅰ244.5244.5113.41120.65241.91412.718.01246.912.792.07=1\*GB3①3-1/29-5/8-Ⅱ244.5244.5113.1120.65241.80812.718.11246.912.792.07=2\*GB3②420-Ⅰ508.0508.0126.11133.35505.43912.718.01510.412.7104.77=3\*GB3③3-1/220-Ⅱ508.0508.0126.11133.35505.33312.718.11510.412.7104.77=4\*GB3④4备注：1.螺纹每英寸牙数为8牙；2.螺纹锥度为1:16；3.Ⅰ、Ⅱ、Ⅲ各代号是区分适用于不同公称质量的套管和不同螺纹长度的同一尺寸的套管螺纹；=1\*GB3①适用低于P110钢级的接箍；=2\*GB3②适用于P110和更高钢级的接箍；=3\*GB3③适用低于J55和K55钢级的接箍；=4\*GB3④适用于J55、K55和更高钢级的接箍。

表3管偏梯形螺纹尺寸(BCSG)螺纹代号大端大径D4不完整螺纹长度g有效螺纹长度L7管端至消逝点平面螺纹全长L4中径E7机紧后管端至接箍中心平面距离J接箍端面至基面的距离Jn接箍端面至E7面长度管端至△标件距离A1接箍端孔深度q完整螺纹最小长度Lc手紧紧密距压数A消逝点至三角形标件点距离B4-1/2114.350.3942.0092.39113.13212.722.947.85100.0117.931.841/27.625127.050.3945.1795.57125.82312.725.445.31103.2130.635.0117.625-1/2139.750.3946.7697.16138.53212.725.445.31104.8143.336.6017.626-5/8168.350.3951.52101.92167.10712.725.445.31109.5171.841.3617.627177.850.3956.29106.68176.63212.725.445.31114.3181.446.1317.627-5/8193.750.3961.05111.44192.50712.725.445.31119.1197.250.8917.628-5/8219.150.3964.22114.62217.90712.725.445.31122.2222.654.0617.629-5/8244.550.3964.22114.62243.30712.725.445.31122.2248.054.0617.6210-3/4273.050.3964.22114.62271.88212.725.445.31122.2276.654.0617.6211-3/4298.450.3964.22114.62297.28212.725.445.31122.2302.054.0617.6213-3/8339.750.3964.22114.62338.55712.725.445.31122.2343.354.0617.6216406.437.8079.36117.16404.82512.722.233.35122.2410.369.207/85.0818-5/8473.137.8079.36117.16471.50012.722.233.35122.2477.069.207/85.0820508.037.8079.36117.16506.42512.722.233.35122.2511,969.207/85.08备注：1.螺纹每英寸牙数为5牙；2.4-1/2”～13-3/8”套管螺纹锥度为1:16，16”～20

表4管螺纹尺寸螺纹代号大端大径D4基准距离L1有效螺纹长度L2管端至消逝点平面螺纹全长L4基面中径E1机紧后管端至接箍中心平面距离J接箍端面至基面的距离M接箍端孔直径Q接箍端孔深度q完整螺纹最小长度Lc手紧紧密距压数A每英寸牙数不加厚TBG1.05026.711.3823.5027.7925.10212.711.3328.37.97.622101.31533.412.1724.2828.5831.83312.711.3335.07.97.622101.66042.215.3427.4631.7540.59612.711.3343.87.98.892101.90048.318.5230.6334.9246.69212.711.3349.97.912.062102-3/860.324.8736.9841.2858.75712.711.3361.97.918.422102-7/873.035.9948.1152.4071.45712.711.3374.67.920.542103-1/288.942.3454.4658.7587.33212.711.3390.57.935.892104101.640.4154.3660.3299.41412.713.56103.29.534.92284-1/2114.345.1059.1365.10112.11412.713.56115.99.539.7028外加厚UPTBG1.05033.412.1724.2828.5831.83312.711.3335.07.97.622101.31537.315.3427.4631.7535.73912.711.3338.97.98.892101.66046.018.5230.6334.9244.47012.711.3347.67.912.062101.90053.220.1232.2336.5351.61412.711.3354.87.913.672102-3/865.929.3143.2649.2363.69712.713.5667.59.523.83282-7/878.634.0648.0153.9876.39712.713.5680.29.528.58283-1/295.240.41543660.3293.06412.713.5696.99.534.92284108.043.5957.5363.50105.76412.713.56109.69.538.10284-1/2120.646.7660.7166.68118.46412.713.56122.39.541.2828备注：1、螺纹锥度为1:16；

表5管线管螺纹尺寸(LP)螺纹代号大端大径D4基准距离L1有效螺纹长度L2管端至消逝点平面螺纹全长L4基面中径E1机紧后管端至接箍中心平面距离J接箍端面至基面的距离M接箍端孔直径Q接箍端孔深度q完整螺纹最小长度LC手紧紧密距压数A每英寸牙数1/810.34.106.709.979.4893.53.0411.91.3NA3271/413.75.7910.2115.1012.4875.55.0815.33.1NA3183/817.16.1010.3615.2615.9265.44.9218.72.9NA3181/221.38.1313.5619.8519.7727.16.2822.94.0NA3143/426.78.6113.8620.1525.1176.86.1028.33.9NA314133.410.1617.3425.0131.4618.38.2235.05.78.45311.51-1/442.210.6717.9525.6240.2189.38.3243.85.89.06311.51-1/248.310.6718.3826.0446.2878.98.7449.96.29.48311.5260.311.0719.2226.8858.3259.69.1762.76.010.32311.52-1/273.017.3228.8939.9170.15912.516