| After-sales Service: | Yes |
|---|---|
| Warranty: | 1 Year |
| Manufacturing Process: | Casting |
| Surface Treatment: | Spray-Paint |
| Operation Pressure: | Atmospheric Pressure |
| Material: | Alloy |
| Samples: |
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| Customization: |
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Drill pipe, is hollow, thin-walled, steel or aluminum alloy piping that is used on drilling rigs. It is hollow to allow drilling fluid to be pumped down the hole through the bit and back up the annulus. It comes in a variety of sizes, strengths, and wall thicknesses, but is typically 27 to 32 feet in length (Range 2). Longer lengths, up to 45 feet, exist (Range 3).
Drill stems must be designed to transfer drilling torque for combined lengths that often exceed several miles down into the Earth's crust, and also must be able to resist pressure differentials between inside and outside (or vice versa), and have sufficient strength to suspend the total weight of deeper components. For deep wells this requires tempered steel tubes that are expensive, and owners spend considerable efforts to reuse them after finishing a well.
| Size (in) | Nominal Weight (1b/ft) | OD of Pipe Body | Wall Thickness of Pipe Body | Conn. Type | ||
| (in) | (mm) | (in) | (mm) | |||
| 2 3/8 | 6.65 | 2 3/8 | 60.32 | 0.28 | 7.11 | NC26 (2 3/8 IF) |
| 2 7/8 | 10.4 | 2 7/8 | 73.02 | 0.36 | 9.19 | NC31 (2 7/8 IF) |
| 3 1/2 | 13.3 | 3 1/2 | 88.9 | 0.37 | 9.35 | NC38 (3 1/2 IF) |
| 3 1/2 | 15.5 | 3 1/2 | 88.9 | 0.45 | 11.4 | NC38 (3 1/2 IF) |
| 4 | 14 | 4 | 101.6 | 0.33 | 8.38 | NC46 (4 IF) |
| 4 1/2 | 16.6 | 4 1/2 | 114.3 | 0.34 | 8.56 | NC40 (4 IF) |
| 4 1/2 | 20 | 4 1/2 | 114.3 | 0.43 | 10.92 | NC46 (4 IF) |
| 5 | 19.5 | 5 | 127 | 0.36 | 9.19 | NC50 (4 1/2 IF) |
| 5 | 19.5 | 5 | 127 | 0.36 | 9.19 | 5 1/2 FH |
| 5 | 25.6 | 5 | 127 | 0.5 | 12.7 | NC50 (4 1/2 IF) |
| 5 | 25.6 | 5 | 127 | 0.5 | 12.7 | 5 1/2 FH |
| 5 1/2 | 21.9 | 5 1/2 | 139.7 | 0.36 | 9.17 | 5 1/2 FH |
| 5 1/2 | 24.7 | 5 1/2 | 139.7 | 0.42 | 10.54 | 5 1/2 FH |
| 6 5/8 | 25.2 | 6 5/8 | 168.28 | 0.33 | 8.38 | 6 5/8 FH |
| 6 5/8 | 27.7 | 6 5/8 | 168.28 | 0.36 | 9.19 | |
Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, OHSAS-18001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.
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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