ERW STC Casing

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ERW STC Casing Surface casing: Install casing head at the top to suspend and support casing at each layer; protect the fresh water layer from polluted by drilling fluid. Medium casing: Insulate bed series or complicated stratum in order to install anti-burst device, anti-leakage device and liner in the well. Production casing: Protect production layer, provide tunnel for oil & gas. The OD of casing is from 114.3 to 508mm. Our company not only produce high performance and low cost API tubing & casing, but also upgrade the casing product structure. Now the company has developed FT-high anti-collapsing casing.FT casing for Heavy Oil Thermal Recovery Well.FT Casing for H2S Corrosion Resistance, high grade ERW casing to meet the requirements of various geological condition. Seamless casing blank is manufactured by advanced Accu-roll, enhance the anti-collapsing performance of tubing & casing body; the company developed and patented tooling and fixture, such as pipe end inner and outer support device, toolbar strengthening device to improve pipe clamping rigidity , reduce clamping distortion, eliminate cutting oscillation, improve thread quality. Increase casing weld impact through improving ERW extrusion variable and welding angle. ERW finished casing welds have good performance, the impact value is nearly the same as base metal. The bodies of casing have even WT, small ovality, smooth thread surface, no stress concentration area, good tensile, anti-collapsing and sealing performance. Labels a Outside diameter Nominal Linear mass T&C Wall thickness Type of end finish D mm kg/m t mm H40 J55 K55 M65 L80 C95 N80 Type 1.Q C90d T95d P110 Q125d 1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 4-1/2 4-1/2 4-1/2 4-1/2 4-1/2 9.50 10.50 11.60 13.50 15.10 114.30 114.30 114.30 114.30 114.30 14.14 15.63 17.26 20.09 22.47 5.21 5.69 6.35 7.37 8.56 PS - - - - PS PSB PSLB - - PS PSB PLB PLB - - - PLB PLB - - - PLB PLB - - - PLB PLB - - - PLB PLB PLB - - - - PLB 5 5 5 5 5 5 5 11.50 13.00 15.00 18.00 21.40 23.20 24.10 127.00 127.00 127.00 127.00 127.00 127.00 127.00 17.11 19.35 22.32 26.79 31.85 34.53 35.86 5.59 6.43 7.52 9.19 11.10 12.14 12.70 - - - - - - - PS PSLB PSLB - - - - PS PSLB PLB PLB PLB - - - - PLB PLB PLB PLB PLB - - PLB PLB PLB PLB PLB - - PLB PLB PLB PLB PLB - - PLB PLB PLB PLB PLB - - - PLB PLB PLB PLB 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 14.00 15.50 17.00 20.00 23.00 26.80 29.70 32.60 35.30 38.00 40.50 43.10 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 20.83 23.07 25.30 29.76 34.23 39.88 44.20 48.51 52.53 56.55 60.27 61.14 6.20 6.98 7.72 9.17 10.54 12.70 14.27 15.88 17.45 19.05 20.62 22.22 PS - - - - - - - - - - - PS PSLB PSLB - - - - - - - - - PS PSLB PLB PLB PLB - - - - - - - - - PLB PLB PLB - - - - - - - - - PLB PLB PLB - - - - - - - - - PLB PLB PLB P P P P P P P - - PLB PLB PLB - - - - - - - - - - - PLB - - - - - - - 6-5/8 6-5/8 6-5/8 6-5/8 20.00 24.00 28.00 32.00 168.28 168.28 168.28 168.28 29.76 35.72 41.67 47.62 7.32 8.94 10.59 12.06 PS - - - PSLB PSLB - - PSLB PLB PLB - - PLB PLB PLB - PLB PLB PLB - PLB PLB PLB - PLB PLB PLB - - - PLB 7 7 7 7 7 7 7 17.00 20.00 23.00 26.00 29.00 32.00 35.00 177.80 177.80 177.80 177.80 177.80 177.80 177.80 25.30 29.76 34.23 38.69 43.16 47.62 52.09 5.87 6.91 8.05 9.19 10.36 11.51 12.65 PS PS - - - - - - PS PSLB PSLB - - - - PS PLB PLB PLB PLB - - - PLB PLB PLB PLB PLB - - PLB PLB PLB PLB PLB - - PLB PLB PLB PLB PLB - - - PLB PLB PLB PLB - - - - - - PLB 7 7 7 7 7 7 38.00 42.70 46.40 50.10 53.60 57.10 177.80 177.80 177.80 177.80 177.80 177.80 56.55 63.54 69.05 74.56 79.77 84.97 13.72 15.88 17.45 19.05 20.62 22.22 - - - - - - - - - - - - - - - - - - PLB - - - - - PLB - - - - - PLB P P P P P PLB - - - - - PLB - - - - - 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 24.00 26.40 29.70 33.70 39.00 42.80 45.30 47.10 51.20 55.30 193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68 35.72 39.29 44.20 50.15 58.04 63.69 67.41 70.09 76.19 82.30 7.62 8.33 9.52 10.92 12.70 14.27 15.11 15.88 17.45 19.05 PS - - - - - - - - - - PSLB - - - - - - - - - PSLB PLB PLB - - - - - - - PLB PLB PLB PLB PLB PLB PLB - - - PLB PLB PLB PLB PLB PLB PLB - - - PLB PLB PLB PLB PLB PLB PLB P P - - PLB PLB PLB PLB PLB PLB - - - - - - PLB PLB PLB PLB - - 7-3/4 46.10 196.85 68.60 15.11 - - - P P P P P 8-5/8 8-5/8 8-5/8 8-5/8 8-5/8 8-5/8 8-5/8 24.00 28.00 32.00 36.00 40.00 44.00 49.00 219.08 219.08 219.08 219.08 219.08 219.08 219.08 35.72 41.67 47.62 53.57 59.53 65.48 72.92 6.71 7.72 8.94 10.16 11.43 12.70 14.15 - PS PS - - - - PS - PSLB PSLB - - - PS PS PSLB PSLB PLB - - - - - PLB PLB PLB PLB - - - PLB PLB PLB PLB - - - PLB PLB PLB PLB - - - PLB PLB PLB PLB - - - - - PLB 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 32.30 36.00 40.00 43.50 47.00 53.50 58.40 59.40 64.90 70.30 75.60 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 48.07 53.57 59.53 64.73 69.94 79.62 86.91 88.40 96.58 104.62 112.50 7.92 8.94 10.03 11.05 11.99 13.84 15.11 15.47 17.07 18.64 20.24 PS PS - - - - - - - - - - PSLB PSLB - - - - - - - - - PSLB PSLB PLB PLB - - - - - - - PLB PLB PLB PLB PLB - - - - - - PLB PLB PLB PLB PLB - - - - - - PLB PLB PLB PLB PLB P P P P - - - PLB PLB PLB PLB - - - - - - - - PLB PLB PLB - - - - 10-3/4 10-3/4 10-3/4 10-3/4 10-3/4 10-3/4 10-3/4 10-3/4 10-3/4 10-3/4 32.75 40.50 45.50 51.00 55.50 60.70 65.70 73.20 79.20 85.30 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 273.05 48.74 60.27 67.71 75.90 82.59 90.33 97.77 108.93 117.86 126.94 7.09 8.89 10.16 11.43 12.57 13.84 15.11 17.07 18.64 20.24 PS PS - - - - - - - - - PSB PSB PSB - - - - - - - PSB PSB PSB PSB - - - - - - - - PSB PSB - - - - - - - - PSB PSB - - - - - - - - PSB PSB PSB PSB P P P - - - PSB PSB PSB PSB - - - - - - - - PSB PSB - - - 11-3/4 11-3/4 11-3/4 11-3/4 11-3/4 11-3/4 42.00 47.00 54.00 60.00 65.00 71.00 298.45 298.45 298.45 298.45 298.45 298.45 62.50 69.94 80.36 89.29 96.73 105.66 8.46 9.53 11.05 12.42 13.56 14.78 PS - - - - - - PSB PSB PSB - - - PSB PSB PSB - - - - - PSB P P - - - PSB P P - - - PSB P P - - - PSB P P - - - PSB P P 13-3/8 13-3/8 13-3/8 13-3/8 13-3/8 48.00 54.50 61.00 68.00 72.00 339.72 339.72 339.72 339.72 339.72 71.43 81.10 90.78 101.19 107.15 8.38 9.65 10.92 12.19 13.06 PS - - - - - PSB PSB PSB - - PSB PSB PSB - - - - PSB PSB - - - PSB PSB - - - PSB PSB - - - PSB PSB - - - - PSB P——Plain end,S——Short thread,L——Long thread,B——Buttress thread

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Wuxi Fastube Energy Development Technology Co.,Ltd

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