| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1 Year |
|
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Drill collar is an effective anti-deviation drilling tool, with high drill pressure used in oblique areas, rectifying oblique as well. When drilling directional wells eccentric-weight drill collar is an effective tool to reduce oblique or straighten the well hole using high drilling pressure.
It is used below the drill string and put drill pressure to the drill bit; ensure the necessary strength under compressive stress condition; reduce the shock quake, swing and bounce of drill bit and remain steady of the bit when working; and control the well deviation as well.
1. Material: P550,P540,P530
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&Test: When 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.
|
Size
|
O.D(mm)
|
I.D.(mm)
|
Code
|
Thread
|
Length(mm)
|
Weight(kg)
|
|
3-1/8
|
79.4
|
31.8(1-1/4)
|
NC23-31
|
NC23
|
9140
|
298
|
|
3-1/2
|
88.9
|
38.1(1-1/2)
|
NC26-35
|
NC26
|
9140
|
364
|
|
4-1/8
|
104.8
|
50.8(2)
|
NC31-41
|
NC31
|
9140/9450
|
474/490
|
|
4-3/4
|
120.6
|
50.8(2)
|
NC35-47
|
NC35
|
9140/9450
|
674/697
|
|
5
|
127
|
57.2(2-1/4)
|
NC38-50
|
NC38
|
9140/9450
|
725/749
|
|
6
|
152.4
|
57.2(2-1/4)
|
NC44-60
|
NC44
|
9140/9450
|
1125/1163
|
|
71.4(2-13/16)
|
NC44-60
|
9140/9450
|
1022/1056
|
|||
|
6-1/4
|
158.8
|
57.2(2-1/4)
|
NC44-62
|
NC44
|
9140/9450
|
1237/1279
|
|
71.4(2-13/16)
|
NC46-62
|
9140/9450
|
1134/1172
|
|||
|
6-1/2
|
165.1
|
57.2(2-1/4)
|
NC46-65
|
NC46
|
9140/9450
|
1352/1398
|
|
71.4(2-13/16)
|
NC46-65
|
NC50
|
9140/9450
|
1249/1291
|
||
|
6-3/4
|
171.4
|
57.2(2-1/4)
|
NC46-67
|
NC46
|
9140/9450
|
1471/1521
|
|
7
|
177.8
|
57.2(2-1/4)
|
NC50-70
|
NC50
|
9140/9450
|
1597/1651
|
|
71.4(2-13/16)
|
NC50-70
|
9140/9450
|
1494/1545
|
|||
|
7-1/4
|
184.2
|
71.4(2-13/16)
|
NC50-72
|
NC50
|
9140/9450
|
1625/1680
|
|
7-3/4
|
196.8
|
71.4(2-13/16)
|
NC56-77
|
NC56
|
9140/9450
|
1895/1960
|
|
8
|
203.2
|
71.4(2-13/16)
|
NC56-80
|
NC56/6-5/8REG
|
9140/9450
|
2040/2109
|
|
8-1/4
|
209.6
|
71.4(2-13/16)
|
6-5/8REG
|
6-5/8REG
|
9140/9450
|
2188/2263
|
|
9
|
228.6
|
71.4(2-13/16)
|
NC61-90
|
NC61
|
9140/9450
|
2658/2748
|
|
9-1/2
|
241.3
|
76.2(2-13/16)
|
7-5/8REG
|
7-5/8REG
|
9140/9450
|
2954/3054
|
|
9-3/4
|
247.6
|
76.2(3)
|
NC70-97
|
NC70
|
9140/9450
|
3127/3234
|
|
10
|
254
|
76.2(3)
|
NC70-100
|
NC70
|
9140/9450
|
3308/3421
|
|
11
|
279.4
|
76.2(3)
|
8-5/8REG
|
8-5/8REG
|
9140/9450
|
4072/4210
|
Dongying Zhao Xin Industry and Trade Co., Ltd. was established in 2001. Our company is located in Dongying city which has the second largest Oilfield (Shengli Oilfield) in China. We are a company, which conducts scientific research, development, manufacture, sale and after sale service, is one enterprise for oilfield tool and equipment manufacturer. We cover an area of more than 9000 square meters which manufacture different oilfield products. Our main products include drilling equipment, oil production equipment, oil well service tools. Such as sucker rod, drill pipe, OCTG products, bridge plug. Currently, our products are already exported to North America, South America, Middle East, Middle Aisa, India and other countries and regions. The warranty period of all our products is 18 months.
We are an I S O 9 0 0 1, I S O 1 4 0 0 1, I S O 4 5 0 0 1,API certified company and have all the quality systems in place for design, planning, manufacturing and quality monitoring & traceability to ensure that all products match the quality & reliability Standards. We also have an independent measurement and inspection department, the inspection and measuring tools are fully equipped, we control each process to ensure that all products are qualified.
Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .
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