Product List
Oil country tubular goods type:
Steel line pipe, steel casing, seamless steel pipeline, welded steel pipeline, seamlesss casing pipe, welded casing pipe, oil pipeline, gas pipeline
1. Line pipe
1) Type: seamless pipe and welded pipe.
2) Connection: welded ends, coupling connection, socket links.
3) Materials: L245, L360, GR.B, X42, X52, X60, X70 etc.
4) Size: 21.3 - 2032 mm.
5) Application: for oil and gas industry of oxygen, water and oil pipelines.
2. Tubing and casing
1) Materials: J55, K55, N80, L80, P110 etc.
2) Specification: 1 1/2" - 20" .
3) Category: not upset tubing (NU), external upset tubing (EU), the overall joint tubing (IJ).
4) Application: in the wells used for producing liquid or liquid injection tube.
Oil Country Tubular Goods feature
Oil casing is used to support the oil, gas wells of steel pipe, in order to ensure the drilling process and the completion of the entire well after the normal operation. Casing according to the use can be divided into: catheter, surface casing, casing technology and oil casing.
Oil country tubular goods quality inspection:
1. Our factory has its own "experimental testing center".CNAS Laboratory Accreditation Certificate
2.Control quality strictly.The first pass is the quality inspection on the production line,The second pass is full inspection of the production quality .
3.We have got internationally recognized certificates, ISO, CE, LR,Philippine certificate,also support third-party testing,as SGS, BV, ect.
Oil Country Tubular Goods advantages
Shenlong oil country tubular goods are executed according to API process, 100% non-destructive testing is performed, and the pipelines are of good quality; we have more than 20 years of production experience and projects all over the world.
Oil Country Tubular Goods Technical Data
Size tolerance
1. Line pipe size tolerance
Pipe type | OD(D) | WT(S) | |
Pipe body | OD(mm) | Tolerance(mm) | OD |
≥60.3 & S<20 | ±0.75% | ≤73.0 | +15%,-12.5% |
≥60.3 & S≥20 | ±1.00% | >73.0 & S<20 | +15%,-12.5% |
>73.0 & S≥20 | +17.5%,-10 |
2. Tubing and casing size tolerance
Pipe type | OD(D) | WT(S) |
Cold drown tube | OD(mm) | Tolerance(mm) |
<114.3 | ±0.79 | -12.50% |
≥114.3 | -0.5%,+1% |
3. Line pipe specification
DN | OD | WT | Plain-end pipe weight per meter | |||
inch | mm | mm | mm | Lb / ft | kg/m | |
0.405 | 0.405 | 10.29 | 0.095 | 2.4 | 0.31 | 0.47 |
0.54 | 0.54 | 13.72 | 0.088 | 2.2 | 0.43 | 0.62 |
0.54 | 13.72 | 0.119 | 3 | 0.54 | 0.79 | |
0.675 | 0.675 | 17.15 | 0.091 | 2.3 | 0.57 | 0.84 |
0.675 | 17.15 | 0.126 | 3.2 | 0.74 | 1.1 | |
0.84 | 0.84 | 21.34 | 0.109 | 2.8 | 0.85 | 1.28 |
0.84 | 21.34 | 0.147 | 3.7 | 1.09 | 1.61 | |
1.05 | 1.05 | 26.67 | 0.113 | 2.9 | 1.13 | 1.7 |
1.05 | 26.67 | 0.154 | 3.9 | 1.48 | 2.19 | |
1.315 | 1.315 | 33.4 | 0.133 | 3.4 | 1.68 | 2.52 |
1.315 | 33.4 | 0.179 | 4.6 | 2.17 | 3.21 | |
1.66 | 1.66 | 42.2 | 0.145 | 3.7 | 2.72 | 3.43 |
1.66 | 42.2 | 0.191 | 4.9 | 3 | 4.51 | |
1.9 | 1.66 | 42.2 | 0.382 | 9.7 | 5.22 | 7.77 |
1.9 | 48.3 | 0.145 | 3.7 | 2.72 | 4.07 | |
1.9 | 48.3 | 0.2 | 5.1 | 3.63 | 5.43 | |
1.9 | 48.3 | 0.4 | 10.2 | 6.41 | 9.58 | |
2.3/8 | 2.375 | 60.3 | 0.109 | 2.8 | 2.64 | 3.97 |
2.375 | 60.3 | 0.125 | 3.2 | 3 | 4.51 | |
2.375 | 60.3 | 0.141 | 3.6 | 6.36 | 5.03 |