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Shanxi Weigao Petroleum Drilling Tools Co., Ltd.

China Manufacturer with main products: Drill Collars, Drill Pipes, Square and Hexagonal Kellys, Non-Magnetic Drill Collars, Integral Heavy Weight Drill Pipe, Spiral Drill Collar

Home  >Products Catalog > Drill Collar > Non-magnetic Drill Collars

Non-magnetic Drill Collars

FOB Price: 500.00 - 4,000.00 USD/Ton
Supply Ability: 10 Ton per Week
Shipping: FOB Tianjin
Payment Terms: L/C, T/T, D/P
In Stock

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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Shanxi in China
Packaging Details: Iron shelves or others suited seashipment.

Specifications

Oilfield Non-magnetic Drill Collar
 
 
The non-magnetic products of Zhongzhong mainly include non-magnetic drill collar, non-magnetic stabilizer, non-magnetic heavy weight drill pipe etc.
It is made from high-class low carbon stainless steel, and completely meets the requirement of API Spec 7-1 and SY/T5144 Standard. It has good low magnetic permeability, high mechanical property and perfect enduring intergranular corrosion cracking performance. It is mainly used for the inspection in the process of petroleum drilling, and the structure is the same with the ordinary drill collar.
 
Magnetic permeability(MPS=1×105/4∏A/m)
1. Average: Ur<1.010
2. Magnetic Field Gradient: ΔB≤0.05μT
 
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
 
 
Mechanical properties:
OD
Yield Strength σ0.2
MPa
Tensile Strength
σb
MPa
Elongation
δ4
%
mm
in
79.4-171.4
3 1/8-6 3/4
≥758
≥827
≥18
177.8-279.4
7-11
≥689
≥758
≥20


 

 

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