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Oil Country Tubular Goods

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  • 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.



  • 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

    -12.5%

    ≥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

    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

    1.10


    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

    1.70

    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


    1.660

    1.660

    42.2

    0.145

    3.7

    2.72

    3.43

    1.660

    42.2

    0.191

    4.9

    3.00

    4.51


    1.900

    1.660

    42.2

    0.382

    9.7

    5.22

    7.77

    1.900

    48.3

    0.145

    3.7

    2.72

    4.07


    1.900

    48.3

    0.200

    5.1

    3.63

    5.43


    1.900

    48.3

    0.400

    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

    3.00

    4.51


    2.375

    60.3

    0.141

    3.6

    6.36

    5.03


     


  • Oil country tubular goods production process



  • We have two kinds of packaging:

    1. Package suitable for every kind of transport;

    2. According to customer's requirement.

    20200115085831389.jpg  20200115085831848.jpg 

    20200115085831524.jpg  20200115085832312.jpg


Product name: oil country tubular goods

Materials: L245, L360, GR.B, X42, X52, X60, X70, J55, K55, N80, L80, P110 etc.

Standards: API Spec 5L, API Spec 5CT.
Specification:
Line pipe: 1/2”- 48” .

Tubing and casing: 1 1/2”- 20” .

End: plain end, beveled end, thread, coupling, plastic cap in the both end, pipe clamp.


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