Gas pipe is a new type drill pipe that can discharge dregs by itself. The drill pipe not only retains the advantages of ordinary pipe, but also improves the overall strength. It is a very suitable for deep hole drilling technology. Double wall drill pipe consist of two layers (known as the inner tube and the outer tube). The inner tube and outer tube can make a ring gap, which will be the channel that can transport medium to pump when sampling. In addition, the outer tube can protect the inner tube from corrosion in a short time, because of which the cost can be decreased.
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| OD of | Thickness | Length of | OD of Pin | Steel | Thread | Rated torque | Rated pull | radius of | Weight |
| Pipe Body | of Pipe Body | drill box | and box | Grade | type | (E-75) | (E-75) | curvature |
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| mm/in | mm | mm | mm |
| Type | N.m | KN | m | KG |
| 50/1.9" | 6.5 | 1500 | 53.5 | E\X\G\S | BW | 4000 | 180 | 40 | 13.5 |
| 50/1.9" | 6.5 | 2000 | 53.5 | E\X\G\S | BW | 4000 | 180 | 40 | 17 |
| 50/1.9" | 6.5 | 2500 | 53.5 | E\X\G\S | BW | 4000 | 180 | 40 | 20.5 |
| 50/1.9" | 6.5 | 3000 | 53.5 | E\X\G\S | BW | 4000 | 180 | 40 | 23.5 |
| 60/2-3/8 " | 7 | 2000 | 68 | E\X\G\S | BW | 7000 | 250 | 50 | 23 |
| 60/2-3/8 " | 7 | 2500 | 68 | E\X\G\S | BW | 7000 | 250 | 50 | 27.5 |
| 60/2-3/8 " | 7 | 3000 | 68 | E\X\G\S | BW | 7000 | 250 | 50 | 32 |
| 60/2-3/8 " | 7 | 4500 | 68 | E\X\G\S | BW | 7000 | 250 | 50 | 45.5 |
| 73/2-7/8 " | 8 | 2000 | 78 | E\X\G\S | NC23 | 11000 | 350 | 65 | 32.5 |
| 73/2-7/8 " | 8 | 3000 | 78 | E\X\G\S | NC23 | 11000 | 350 | 65 | 45 |
| 73/2-7/8 " | 8 | 4000 | 78 | E\X\G\S | NC23 | 11000 | 350 | 65 | 58 |
| 73/2-7/8 " | 9 | 3000 | 88 | E\X\G\S | NC26 | 11000 | 350 | 65 | 54 |
| 73/2-7/8 " | 9 | 4500 | 88 | E\X\G\S | NC26 | 11000 | 350 | 80 | 75 |
| 89/3-1/2" | 9.35 | 4500 | 92 | E\X\G\S | 92 | 20000 | 500 | 80 | 98 |
| 89/3-1/2" | 9.35 | 4500 | 97 | E\X\G\S | 97 | 20000 | 500 | 80 | 100 |
| 89/3-1/2" | 9.35 | 6000 | 97 | E\X\G\S | 97 | 20000 | 500 | 80 | 127.5 |
| 89/3-1/2" | 9.35 | 4500 | 105 | E\X\G\S | NC31 | 20000 | 500 | 80 | 108 |
| 89/3-1/2" | 9.35 | 6000 | 105 | E\X\G\S | NC31 | 20000 | 500 | 80 | 135.5 |
| 89/3-1/2" | 9.35 | 6000 | 123 | E\X\G\S | NC38 | 20000 | 500 | 80 | 152 |
| 89/3-1/2" | 9.35 | 9600 | 123 | E\X\G\S | NC38 | 20000 | 500 | 80 | 218 |
| 102/4" | 10 | 6000 | 123 | E\X\G\S | NC38 | 30000 | 750 | 90 | 180 |
| 114.3/4-1/2" | 10 | 6000 | 127\140 | E\X\G\S | NC38\NC40 | 40000 | 1000 | 100 | 212 |
| 127/5" | 10 | 9600 | 168 | E\X\G\S | NC50 | 70000 | 1500 | 120 | 344 |
| 139.7/5-1/2" | 11 | 9600 | 192 | E\X\G\S | 5 1/2"FH | 120000 | 3000 | 140 | 430 |
