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Oil field piping system
      Promulgator ：admin      Time：2016-07-12
1.Casing

Casing, tubing and drill pipe are necessary during the drilling and producing process in the oilfield. The heat treatment, end upset of smooth pipe and the machining of the pipe are performed thoroughly according to related API Specifications.

   The production line of heat treatment with the advanced equipments and monitoring instruments can process the pipe with the sizes 2 3/8” through 7”. The end upset equipments matching with the heat treatment production line is among the few leading manufacturers in China.

   More than 60,000 tons of pipe can be heat treated annually. Seven advanced flow production line had been established in machining workshop and can machine 150,000 tons of tubing, casing, couplings, sieve tube etc with the sizes 2 3/8” through 20” and grades J55, K55, N80, L80, P110 annually.

Standard：API Spec 5CT  



[Click the picture to enlarge]

Product Specifications:

No.

OutsideDiameter

InsideDiameter

Wallthickness

Steel grade

In

mm

In

mm

mm

1

4-1/2

114.30

4.000

101.60

6.35

J55,K55,N80,L80,P110

3.920

99.57

7.37

J55,K55,N80,L80,P110

2

5

127.00

4.408

111.96

7.52

J55,K55,N80,L80,P110

4.276

108.61

9.29

J55,K55,N80,L80,P110

4.126

104.80

11.10

J55,K55,N80,L80,P110

3

5-1/2

139.70

4.892

124.26

7.72

J55,K55,N80,L80,P110

4.778

121.36

9.17

J55,K55,N80,L80,P110

4.670

118.62

10.54

J55,K55,N80,L80,P110

4

7

177.80

6.366

161.70

8.05

J55,K55,N80,L80,P110

6.276

159.41

9.19

J55,K55,N80,L80,P110

6.184

157.07

10.36

J55,K55,N80,L80,P110

5

9-5/8

244.48

8.755

222.38

11.05

J55,K55,N80,L80,P110

8.681

220.50

11.99

J55,K55,N80,L80,P110

6

10-3/4

273.05

10.050

255.27

8.89

J55,K55,N80,L80,P110

9.850

250.19

11.43

J55,K55,N80,L80,P110

7

13-3/8

339.72

12.615

320.42

9.65

J55,K55,N80,L80,P110

12.415

315.34

12.19

J55,K55,N80,L80,P110


2.Oil Pipe


     Casing, tubing and drill pipe are necessary during the drilling and producing process in the oilfield. The heat treatment, end upset of smooth pipe and the machining of the pipe are performed thoroughly according to related API Specifications.

     The production line of heat treatment with the advanced equipments and monitoring instruments can process the pipe with the sizes 2 3/8” through 7”. The end upset equipments matching with the heat treatment production line is among the few leading manufacturers in China.

     More than 60,000 tons of pipe can be heat treated annually. Seven advanced flow production line had been established in machining workshop and can machine 150,000 tons of tubing, casing, couplings, sieve tube etc with the sizes 2 3/8” through 20” and grades J55, K55, N80, L80, P110 annually.



[Click the picture to enlarge]


Product Specifications:

Size

Body OD

Body WT

Steel Grade

Tubing End Type

mm

in

mm

in

1.9

48.26

1.900

3.68

0.145

J55 L80 N80 C90 T95

NUE EUE

2 3/8

60.32

2.375

4.83

0.190

J55 L80 N80 C90 T95 P110

NUE EUE

2 7/8

73.02

2.875

5.51

0.217

J55 L80 N80 C90 T95 P110

NUE EUE

3 1/2

88.90

3.500

6.45

0.254

J55 L80 N80 C90 T95 P110

NUE EUE

4

101.60

4.000

5.74

0.226

J55 L80 N80 C90 T95 P110

NUE

6.65

0.262

J55 L80 N80 C90 T95 P110

EUE

4 1/2

114.30

4.500

6.88

0.271

J55 L80 N80 C90 T95 P110

NUE EUE


3.Drilling Pipe


  

Standards：API Spec 5D、API Spec 7










[Click the picture to enlarge]

Product Specifications:

Size  
in

Nominal Weight
lb/ft

Body OD

Body WT

Steel Grade

Upset Mode

Thread Type

in

mm

in

mm

2-3/8

6.65

2.375

60.32

0.280

7.11

E、X、G

EU

NC26 (2-3/8 IF)

2-7/8

10.40

2.875

73.02

0.362

9.19

E、X、G、S

EU

NC31 (2-7/8 IF)

3-1/2

13.30

3.5

88.90

0.368

9.35

E、X、G、S

EU

NC38 (3-1/2 IF)

15.50

3.5

88.90

0.449

11.40

E、X、G

EU

NC38 (3-1/2 IF)

15.50

3.5

88.90

0.449

11.40

S

EU

NC40 (4 FH)

4

14.00

4.0

101.60

0.330

8.38

E、X、G、S

EU

NC46 (4 IF)

15.7

4.0

101.60

0.380

9.65

E、X、G、S

IEU

NC40 NC46

4-1/2

16.6

4.5

114.30

0.337

8.56

E、X、G、S

IEU

NC46 (4 IF)

20.0

4.5

114.30

0.430

10.92

E、X、G、S

IEU

NC46 (4 IF)

5

19.50

5.0

127.00

0.362

9.19

E、X、G、S

IEU

NC50 (4-1/2 IF)


3.Drill Collar


  

Type A (column): made from ordinary alloy steel, inside and outside cross sections are circle.

Type B (spiral): made from ordinary alloy steel, spiral flutes on surface.



[Click the picture to enlarge]

Product Specifications:

 

Outside Dia. (in)

Yield strength (MPa)

Tension strength

(MPa)

Extensibility (%)

Brinell hardness

(HB)

“V” impact power (J)

Type A

3-1/8 ~ 6-3/4

≥758

≥965

≥13

285～341

≥54

Type B

7 ~ 11

≥689

≥930

≥13

285～341

≥54

 
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