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Technical specifications of oil casing

Update:2015-11-16      View(s):2299        Keywords :Oil Casing, API 5CT Casing        
1) Domestic oil casing adopt SY/T6194-96 standard, and random length from 8m-13m. And length under 6m is available, quantity is low than 20%.
2) No folding, hairline, delamination, crack, rolling and scarring on the surface both outside and inside. All the flaw should be cleaned. And clearing depth shall not exceed 12.5% of the nominal wall thickness.
3)No folding, hairline, delamination, crack, rolling and scarring on the surface of coupling.

4)Surface of oil casing and collar thread should smoonth,no burr, tear and others which will impact thread and strength etc.

OD Theory wight Wall Thick Inside diameter Drift diameter Collar diameter Types of thread Grade Length
139.7 20.85(0.244) 6.20(0.244) 127.3(5.012) 124.1(4.887) 153.7 Round thread j55 8m-12m
(5-1/2) 23.09(15.50) 6.98(0.275) 125.7(4.950) 122.6(4.825) -6.05 BCSG n80 (2602-39.4)
25.32(17.00) 7.72(0.304) 124.3(4.892) 121.1(4.767) p110
29.79(20.00) 9.17(0.361) 121.4(4.778) 118.2(4.653)
34.26(23.00) 10.54(0.415) 118.6(4.670) 115.4(4.545)
177.8 25.52917.00) 5.87(0.231) 166.1(6.538) 162.9(6.413) 194.5 Round thread j55 8m-12m
-7 29.79(20.00) 6.91(0.272) 164.2(6.456) 160.8(6.331) -7.656 BCSG n80 (2602-39.4)
34.26(23.00) 8.05(0.317) 161.7(6.366) 158.5(6.204) p110
38.73(26.00) 9.19(0.362) 159.4(6.276) 156.2(6.151)
43.20(29.00) 10.36(0.408) 157.1(6.180) 153.9(6.059)
47.66(32.00) 11.51(0.453) 154.8(6.090) 151.6(5.969)
52.13(35.00) 12.65(0.498) 152.5(6.004) 149.3(5.879)
56.60(38.00) 13.72(0.540) 150.4(5.430) 147.2(5.795)
219.1 35.75(24.00) 6.71(0.264) 205.7(8.093) 202.5(7.972) 244.5 Round thread j55 8m-12m
(8-5/8) 41.71(28.00) 7.72(0.304) 203.7(8.020) 200.5(7.894) -9.625 BCSG n80 (2602-39.4)
47.66(32.00) 8.94(0.352) 201.2(7.927) 198.0(7.795) p110
53.62(36.00) 10.16(0.400) 198.8(7.827) 195.6(7.701)
59.58(40.00) 11.43(0.450) 196.2(7.724) 193.0(7.598)
244.5 48.11(32.30) 7.92(0.312) 228.7(9.001) 244.7(8.845) 269.6 Round thread j55 8m-12m
(9-5/8) 53.62(36.00) 8.94(0.352) 226.6(8.921) 222.6(8.765) (10.6250 BCSG n80 (2602-39.4)
59.58(40.00) 10.03(0.395) 224.4(8.835) 220.4(8.679) p110
64.79(43.50) 11.05(0.435) 222.4(8.755) 218.4(8.599)
70.01(47.00) 11.99(0.472) 220.5(8.681) 216.5(8.525)
71.69(53.50) 13.84(0.545) 216.8(8.535) 212.8(8.379)
273 48.78(32.75) 7.09(0.279) 258.9(10.192) 254.9(10.035) 298.5 Round thread j55 8m-12m
(10-3/4) 60.32(40.50) 8.89(0.350) 255.3(10.050) 251.3(9.894) -11.752 BCSG n80 (2602-39.4)
67.77(45.50) 10.26(0.400) 252.7(9.950) 248.8(9.794) p110
75.96(51.00) 11.43(0.450) 250.2(9.850) 246.2(9.694)
82.67(55.50) 12.57(0.495) 247.9(9.760) 243.9(9.604)
339.7 71.50(48.00) 8.38(0.330) 322.9(12.715) 319.0(12.559) 365.1 Round thread j55 8m-12m
(13-3/8) 81.18(54.50) 9.65(0.380) 320.4(12.615) 316.5(12.459) -14.374 BCSG n80 (2602-39.4)
90.86(61.00) 10.92(0.430) 317.9(12.515) 313.9(12.359) p110
101.69(68.00) 12.19(0.480) 315.3(12.415) 311.4(12.259)
73 9.53(6.40) 5.51(0217) 62.00(2.441) 59.61(2.347) 88.9 Round thread j55 8.5m-9.5m
(2-7/8) 11.62(7.90) 7.01(0.276) 59.00(2.323) 56.62(2.229) -3.5 n80 (27.9-31.2)
12.81(8.60) 7.82(0.308) 57.40(2.259) 54.99(2.165)
88.9 11.47(7.70) 5.49(0.216) 77.9(3.067) 24.25(2.943) 107.95 Round thread j55 8.5m-9.5m
(3-1/2) 15.19(10.20) 7.34(0.289) 76.0(2.992) 21.04(2.797) -4.25 n80 (27.9-31.2)
114.3 18.77(12.60) 6.88(0.271) 100.5(3.957) 97.37(3.833) 132.08 Round thread j55 8.5m-9.5m
(4-1/2) -5.2 n80 (27.9-31)

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