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Casing and Tubing
Casing and tubing are necessary during the drilling and producing process in the
oilfield. We supply up to 200,000 tons of API certificated casing and tubing pipes
a year with the sizes from 2 3/8" to 20" and grades J55, K55, N80, L80, P110.
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 Specifications:
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No.
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Outside diameter
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Wall Thickness
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Type of end-finish
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Grade
|
Type of Pipe
|
|
inch
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mm
|
inch
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mm
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1
|
2 3/8
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60.3
|
0.190
|
4.83
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NUE,EUE
|
J55,N80,L80,P110
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Seamless
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|
2
|
2 7/8
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73.0
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0.217
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5.51
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NUE,EUE
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J55,N80,L80,P110
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Seamless
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3
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3 1/2
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88.9
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0.254
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6.45
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NUE,EUE
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J55,N80,L80,P110
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Seamless
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4
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4 1/2
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114.3
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0.205
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5.21
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STC
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J55
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ERW
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5
|
0.224
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5.69
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STC,BTC
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J55
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ERW
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6
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0.224
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5.69
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STC,BTC
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J55,K55
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Seamless
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7
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0.250
|
6.35
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STC,LTC,BTC
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J55
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ERW
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8
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0.250
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6.35
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STC,LTC,BTC
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J55,K55,N80,L80,P110
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Seamless
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9
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0.290
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7.37
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LTC,BTC
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N80,L80,P110
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Seamless
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10
|
0.337
|
8.56
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LTC,BTC
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N80,L80,P110
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Seamless
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11
|
5 1/2
|
139.7
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0.244
|
6.20
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STC
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J55
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ERW
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12
|
0.275
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6.98
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STC,LTC,BTC
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J55
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ERW
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13
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0.275
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6.98
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STC,LTC,BTC
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J55,K55
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Seamless
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14
|
0.304
|
7.72
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STC,LTC,BTC
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J55
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ERW
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15
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0.304
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7.72
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STC,LTC,BTC
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J55,K55,N80,L80,P110
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Seamless
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16
|
0.361
|
9.17
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LTC,BTC
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N80,L80,P110
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Seamless
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17
|
0.415
|
10.54
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LTC,BTC
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N80,L80,P110
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Seamless
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18
|
7
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177.8
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0.231
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5.87
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STC
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J55
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ERW
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19
|
0.272
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6.91
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STC
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J55
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ERW
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20
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0.317
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8.05
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STC,LTC,BTC
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J55
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ERW
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21
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0.317
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8.05
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STC,LTC,BTC
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J55,K55,N80,L80,P110
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Seamless
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22
|
0.362
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9.19
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STC,LTC,BTC
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J55
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ERW
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23
|
0.362
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9.19
|
LTC,BTC
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J55,K55,N80,L80,P110
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Seamless
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24
|
0.408
|
10.36
|
LTC,BTC
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N80,L80,P110
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Seamless
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25
|
8 5/8
|
219.1
|
0.264
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6.71
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STC
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J55
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ERW
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26
|
0.304
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7.72
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STC
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J55
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ERW
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27
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0.304
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7.72
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STC
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J55,K55
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Seamless
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28
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0.352
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8.94
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STC,LTC,BTC
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J55
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ERW
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29
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0.352
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8.94
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STC,LTC,BTC
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J55,K55
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Seamless
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30
|
0.400
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10.16
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STC,LTC,BTC
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J55
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ERW
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31
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0.400
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10.16
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STC,LTC,BTC
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J55,K55,N80,L80,P110
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Seamless
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32
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0.450
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11.43
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LTC,BTC
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N80,L80,P110
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Seamless
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33
|
9 5/8
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244.5
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0.312
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7.92
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STC
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J55
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ERW
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34
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0.352
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8.94
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STC,LTC,BTC
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J55
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ERW
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35
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0.352
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8.94
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STC,LTC,BTC
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J55,K55
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Seamless
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36
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0.395
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10.03
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STC,LTC,BTC
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J55
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ERW
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|
37
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0.395
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10.03
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STC,LTC,BTC
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J55,K55,N80,L80,P110
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Seamless
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38
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0.435
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11.05
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STC,LTC,BTC
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N80,L80,P110
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Seamless
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39
|
0.472
|
11.99
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STC,LTC,BTC
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N80,L80,P110
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Seamless
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40
|
10 3/4
|
273.1
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0.279
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7.09
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STC
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J55
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ERW
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|
41
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0.350
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8.89
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STC,BTC
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J55
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ERW
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42
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0.350
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8.89
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STC,BTC
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J55,K55
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Seamless
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|
43
|
0.400
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10.16
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STC,BTC
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J55
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ERW
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|
44
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0.400
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10.16
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STC,BTC
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J55,K55
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Seamless
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|
45
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0.450
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11.43
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STC,BTC
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J55,K55,N80,L80
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Seamless
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46
|
13 3/8
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339.7
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0.330
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8.38
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STC
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J55
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ERW
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|
47
|
0.380
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9.65
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STC,BTC
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J55
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ERW
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|
48
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0.380
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9.65
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STC,BTC
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J55,K55
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Seamless
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49
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0.430
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10.92
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STC,BTC
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J55
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ERW
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|
50
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0.430
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10.92
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STC,BTC
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J55,K55
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Seamless
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51
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0.480
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12.19
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STC,BTC
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J55,K55,N80
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Seamless
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52
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0.514
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13.06
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STC,BTC
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N80
|
Seamless
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