How to Identify Defects in Oil casing Pipe During Factory Inspection

When inspecting oil casing pipe during factory inspection, it is important to identify any defects that may be present. To do this, it is necessary to compare the pipe to the Manufacturer‘s specifications and look for any discrepancies.

alt-791
The first step is to visually inspect the pipe for any signs of damage or defects. This includes looking for any dents, scratches, or other deformities that may have occurred during the manufacturing process. Additionally, it is important to check for any signs of corrosion or rust that may have developed over time.

The next step is to measure the pipe’s dimensions. This includes measuring the outside Diameter, Wall thickness, and Length of the pipe. It is important to compare these measurements to the manufacturer’s specifications to ensure that the pipe meets the required standards.
oil pipe,oil pipe joint, Oil pipelines Company china, oil pipe from tank to boiler, oil pipe insulation, oil pipeline construction cost per km, oil pipe for sale near me, oil pipeline contractor in China, oil pipe cutter, oil pipe leak, oil pipe size chart, oil pipeline construction, oil pipeline cleaning, oil pipe fence, oil pipeline, oil pipe, oil pipeline company, oil pipe welder,oil pipeline,oil pipe insulation,oil pipeline contractor in China,oil pipe size chart,oil pipeline company,oil pipe from tank to boiler,oil pipe|oil pipe cutter,oil pipe leak,oil pipe for sale near me,oil pipeline inspection robot,oil pipeline construction,oil pipe welder,oil pipeline cleaning,Tubing near me,tubing connector,tubing pipe,casing pipe Chinese good factory,casing pipe China good Wholesaler,oil tube Wholesale-Price high-quality high-grade Chinese
The third step is to perform a Hydrostatic test. This involves filling the pipe with water and pressurizing it to a certain level. If the pipe is able to withstand the pressure, then it is considered to be of good quality. If the pipe fails the test, then it is likely to have a defect that needs to be addressed.

 API 5ct L80 casing tubingDimensions and Masses for Standard Casing and for Casing Threaded with
API round Thread and Buttress Thread
Labels a           Calculated Mass c
    Nominal Linear Mass T& C b,c Wall Thick- ness       em, Mass Gain or Loss Due to End Finishing d
  Outside Diameter     Inside Diameter Drift Diameter Plain- end kg
              Round Thread Buttress Thread
            wpe        
  D kg/m t D mm kg/m Short Long RC SCC
  mm   mm mm            
1 2 3 4 5 6 7 8 9 10 11 12
4 1/2 9.5 114.3 14.38 5.21 103.88 100.7 14.02 3.64 — — 4.53 — 1.12
4 1/2 10.5 114.3 15.73 5.69 102.92 99.74 15.24 3.33 — 3.61 4.32 0.91
4 1/2 11.6 114.3 17.38 6.35 101.6 98.42 16.91 3.18 3.35 4.07 0.6
4 1/2 13.5 114.3 19.87 7.37 99.56 96.38 19.44 — 3.53 3.64 0.24
4 1/2 15.1 114.3 22.69 8.56 97.18 94 22.32 —      
5 11.5 127 17.19 5.59 115.82 112.64 16.74 4.32 — 4.85 — 5.38 — 1.24
5 13 127 19.69 6.43 114.14 110.96 19.12 4 4.51 4.99 0.61
5 15 127 22.69 7.52 111.96 108.78 22.16 3.71 4.52 4.4 0.22
5 18 127 27.19 9.19 108.62 105.44 26.7 — 3.45 3.76 –0.62
5 21.4 127 32.13 11.1 104.8 101.62 31.73 — 3.15 3.42 –0.96
5 23.2 127 34.76 12.14 102.72 99.54 34.39 — 2.99 3.23 –1.14
5 24.1 127 36.15 12.7 101.6 98.42 35.8 —      
5 1/2 14 139.7 20.91 6.2 127.3 124.12 20.41 4.6 — 5.26 — 5.71 — 0.87
5 1/2 15.5 139.7 23.48 6.98 125.74 122.56 22.85 4.36 5.31 5.41 0.58
5 1/2 17 139.7 25.72 7.72 124.26 121.08 25.13 4.14 4.5 4.84 0.45
5 1/2 20 139.7 30.05 9.17 121.36 118.18 29.52 — 4.37 4.31 -0.52
5 1/2 23 139.7 34.05 10.54 118.62 115.44 33.57 — — — —
5 1/2 26.8 139.7 40.15 12.7 114.3 111.12 39.78 — — — —
5 1/2 29.7 139.7 44.47 14.27 111.16 107.98 44.14 — — — —
5 1/2 32.6 139.7 48.74 15.88 107.94 104.76 48.49 — — — —
5 1/2 35.3 139.7 52.8 17.45 104.8 101.62 52.61 — — — —
5 1/2 38 139.7 56.82 19.05 101.6 98.42 56.68 — — — —
5 1/2 40.5 139.7 60.64 20.62 98.46 95.28 60.55 — — — —
5 1/2 43.1 139.7 64.41 22.22 95.26 92.08 64.38 —      
6 5/8 20 168.28 29.76 7.32 153.64 150.46 29.06 5.58 6.23 6.35 0.89
6 5/8 24 168.28 35.72 8.94 150.4 147.22 35.13 4.42 5.48 5.52 0.68
6 5/8 28 168.28 41.67 10.59 147.1 143.92 41.18 — 4.73 4.71 –0.75
6 5/8 32 168.28 47.62 12.06 144.16 140.98 46.46 — 4.73 4 –1.46

Finally, it is important to perform a non-destructive test. This involves using a special device to detect any internal defects that may not be visible to the naked eye. This test is especially important for pipes that are used in high-pressure applications.

Labels Outside diameter
(d/mm)		 T&C
(kg/m)		 Wall thickness  
(t/mm)		 Type of end-finish
         
1 2       J55/ K55 M65 L80/ R95 N80-1/Q C90/T95 P110 Q125
4-1/2 9.50 114.30 14.14 5.21 PS PS – – – – –
  10.50 114.30 15.63 5.69 PSB PSB – – – – –
  11.60 114.30 17.26 6.35 PSLB PLB PLB PLB PLB PLB –
  13.50 114.30 20.09 7.37 – PLB PLB PLB PLB PLB –
  15.10 114.30 22.47 8.56 – – – – – PLB PLB
5 11.50 127.00 17.11 5.59 PS PS – – – – –
  13.00 127.00 19.35 6.43 PSLB PSLB – – – – –
  15.00 127.00 22.32 7.52 PSLB PLB SLB PLB PLB PLB 　
  18.00 127.00 26.79 9.19 – PLB SLB PLB PLB PLB PLB
  21.40 127.00 31.85 11.10 – PLB PLB PLB PLB PLB PLB
  23.20 127.00 34.53 12.14 – – PLB PLB PLB PLB PLB
  24.10 127.00 35.87 12.70 – – PLB PLB PLB PLB PLB
5-1/2 14.00 139.70 20.83 6.20 PS PS – – – – –
  15.50 139.70 23.07 6.98 PSLB PSLB – – – – –
  17.00 139.70 25.30 7.72 PSLB PLB PLB PLB PLB PLB –
  20.00 139.70 29.76 9.17 – PLB PLB PLB PLB PLB –
  23.00 139.70 34.23 10.54 – PLB PLB PLB PLB PLB PLB
  26.80 139.70 39.88 12.70 – – – – P – –
  29.70 139.70 44.20 14.27 – – – – P – –
  32.60 139.70 48.52 15.88 – – – – P – –
  35.30 139.70 52.53 17.45 – – – – P – –
  38.00 139.70 56.55 19.05 – – – – P – –
  40.50 139.70 60.27 20.62 – – – – P – –
  43.10 139.70 64.14 22.22 – – – – P – –
6-5/8 20.00 168.28 29.76 7.32 PSLB PSLB – – – – –
  24.00 168.28 35.72 8.94 PSLB PLB PLB PLB PLB PLB –
  28.00 168.28 41.67 10.59 – PLB PLB PLB PLB PLB –
  32.00 168.28 47.62 12.06 – – PLB PLB PLB PLB PLB
7 17.00 177.80 25.30 5.87 – – – – – – –
  20.00 177.80 29.76 6.91 PS PS – – – – –
  23.00 177.80 34.23 8.05 PSLB PLB PLB PLB PLB – –
  26.00 177.80 38.69 9.19 – PLB PLB PLB PLB PLB –
  29.00 177.80 43.16 10.36 – PLB PLB PLB PLB PLB –
  32.00 177.80 47.62 11.51 – PLB PLB PLB PLB PLB –
  35.00 177.80 52.09 12.65 – – PLB PLB PLB PLB PLB
  38.00 177.80 56.55 13.72 – – PLB PLB PLB PLB PLB
  42.70 177.80 63.55 15.88 – – – – P – –
  46.40 177.80 69.05 17.45 – – – – P – –
  50.10 177.80 74.56 19.05 – – – – P – –
  53.60 177.80 79.77 20.62 – – – – P – –
  57.10 177.80 84.98 22.22 – – – – P – –
7-5/8 24.00 193.68 35.72 7.62 – – – – 　 – –
  26.40 193.68 39.29 8.33 PSLB PSLB PLB PLB PLB – –
  29.70 193.68 44.20 9.52 – PLB PLB PLB PLB PLB –
  33.70 193.68 50.15 10.92 – PLB PLB PLB PLB PLB –
  39.00 193.68 58.04 12.70 – – PLB PLB PLB PLB PLB
  42.80 193.68 63.69 14.27 – – PLB PLB PLB PLB PLB
  45.30 193.68 67.42 15.11 – – PLB PLB PLB PLB PLB
  47.10 193.68 70.09 15.88 – – PLB PLB PLB PLB PLB
  51.20 193.68 76.20 17.45 – – – – P – –
  55.30 193.68 82.30 19.05 – – – – P – –
7-3/4 46.10 196.85 68.61 15.11 – – P P P P P
8-5/8 24.00 219.08 35.72 6.71 PS PS – – – – –
  28.00 219.08 41.67 7.72 　 PS – – – – –
  32.00 219.08 47.62 8.94 PSLB PSLB – – – – –
  36.00 219.08 53.58 10.16 PSLB PSLB PLB PLB PLB PLB –
  40.00 219.08 59.53 11.43 – PLB PLB PLB PLB PLB –
  44.00 219.08 65.48 12.70 – – PLB PLB PLB PLB –
  49.00 219.08 72.92 14.15 – – PLB PLB PLB PLB PLB
9-5/8 32.30 244.48 48.07 7.92 – – – – – – –
  36.00 244.48 53.58 8.94 PSLB PSLB – – – – –
  40.00 244.48 59.53 10.03 PSLB PSLB PLB PLB PLB – –
  43.50 244.48 64.74 11.05 – PLB PLB PLB PLB PLB –
  47.00 244.48 69.95 11.99 – PLB PLB PLB PLB PLB PLB
  53.50 244.48 79.62 13.84 – – PLB PLB PLB PLB PLB
  58.40 244.48 86.91 15.11 – – PLB PLB PLB PLB PLB
  59.40 244.48 88.40 15.47 – – – – P – –
  64.90 244.48 96.58 17.07 – – – – P – –
  70.30 244.48 104.62 18.64 – – – – P – –
  75.60 244.48 112.51 20.24 – – – – P – –
10-3/4 32.75 273.05 48.74 7.09 – – – – – – –
  40.50 273.05 60.27 8.89 PSB PSB – – – – –
  45.50 273.05 67.71 10.16 PSB PSB – – – – –
  51.00 273.05 75.90 11.43 PSB PSB PSB PSB PSB PSB –
  55.50 273.05 82.60 12.57 – PSB PSB PSB PSB PSB –
  60.70 273.05 90.33 13.84 – – – – PSB PSB PSB
  65.70 273.05 97.77 15.11 – – – – PSB PSB PSB
  73.20 273.05 108.94 17.07 – – – – P – –
  79.20 273.05 117.87 18.64 – – – – P – –
  85.30 273.05 126.94 20.24 – – – – P – –
11-3/4 42.00 298.45 62.50 8.46 – – – – – – –
  47.00 298.45 69.95 9.53 PSB PSB – – – – –
  54.00 298.45 80.36 11.05 PSB PSB – – – – –
  60.00 298.45 89.29 12.42 PSB PSB PSB PSB PSB PSB PSB
  65.00 298.45 96.73 13.56 – – P P P P P
  71.00 298.45 105.66 14.78 – – P P P P P
13-3/8 48.00 339.72 71.43 8.38 – – – – – – –
  54.50 339.72 81.11 9.65 PSB PSB – – – – –
  61.00 339.72 90.78 10.92 PSB PSB – – – – –
  68.00 339.72 101.20 12.19 PSB PSB PSB PSB PSB PSB –
  72.00 339.72 107.15 13.06 – – PSB PSB PSB PSB PSB
16 65.00 406.40 96.73 9.53 – – – – – – –
  75.00 406.40 111.62 11.13 PSB PSB – – – – –
  84.00 406.40 125.01 12.57 PSB PSB – – – – –
  109.00 406.40 162.21 16.66 P – P P – P P
18-5/8 87.50 473.08 130.22 11.05 PSB PSB – – – – –
20 94.00 508.00 139.89 11.13 PSLB PSLB – – – – –
  106.50 508.00 158.49 12.70 PSLB PSLB – – – – –
  133.00 508.00 197.93 16.13 PSLB – – – – – –

By following these steps, it is possible to identify any defects in oil casing pipe during factory inspection. It is important to remember that any defects should be addressed immediately to ensure the safety and reliability of the pipe.

The Benefits of Utilizing Advanced technology for Defect treatment in Oil casing pipe Factory Inspection

Similar Posts