Offshore drilling rig API Spec Non magnetic Drill Collar

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Product detail:

Non magnetic Drill Collar

 

 The Petroleum drilling tools of Zhongzhong's mainly include Drill collars, Spiral drill collars, Non magnetic drill collars, Short drill collars, Drill tool stabilizers, Non magnetic drill tool stabilizers, Integral heavy weight drill pipes, etc.

 The details of Non magnetic Drill collar as follows,

1. Material: Non magnetic steel

2. Shape: It is the round pipe with smooth surface and thick wall, and the both ends are machined screw thread for connection.

3. Use: It is mainly used for the inspection in the process of petroleum drilling.

4. Standard: API Spec 7-1 or SY/T5144 Standard.

5. Inspection&TestWhen producing, traceability are maintained from the receipt of raw material to completion of final products, and serial numbers are die-stamped on each workpiece body. During each manufacturing process, inspection and test are performed.

6. Magnetic permeability(MPS=1×105/4∏A/m)

1. Average: Ur<1.010.

2. Magnetic Field Gradient: ΔB≤0.05μT.

7. Specification:

Connections

OD

mm

ID

mm

Length

mm

NC23-31

79.4

31.8

9150

 

NC26-35

88.9

38.1

9150

 

NC31-41

104.8

50.8

9150 or 9450

 

NC35-47

120.7

50.8

915 or 9450

 

NC38-50

127.0

57.2

9150 or 9450

 

NC44-60

152.4

57.2

9150 or 9450

 

NC44-60

152.4

71.4

9150 or 9450

 

NC44-62

158.8

57.2

9150 or 9450

 

NC46-62

158.8

71.4

9150 or 9450

 

NC46-65

165.1

57.2

9150 or 9450

 

NC46-65

165.1

71.4

9150 or 9450

 

NC46-67

171.4

57.2

9150 or 9450

 

NC50-67

171.4

71.4

9150 or 9450

 

NC50-70

177.8

57.2

9150 or 9450

 

NC50-70

177.8

71.4

9150 or 9450

 

NC50-72

184.2

71.4

9150 or 9450

 

NC56-77

196.8

71.4

9150 or 9450

 

NC56-80

203.2

71.4

9150 or 9450

 

6 5/8REG

209.6

71.4

9150 or 9450

 

NC61-90

228.6

71.4

9150 or 9450

 

7 5/8REG

241.3

76.2

9150 or 9450

 

NC70-97

247.6

76.2

9150 or 9450

 

NC70-100

254.0

76.2

9150 or 9450

 

8 5/8REG

279.4

76.2

9150 or 9450

 

 

 

 

 

 

 

 
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