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drill rods·1.Inner and outer tube of core barrel·2.high core recovery efficiency·3.for different rock formation
| Place of Origin | Hunan China (Mainland) | Model Number | NQ,PQ,HQ,etc |
|---|---|---|---|
| Type | Drill Pipe,drill rods | Machine Type | Drilling Equipment |
| Certification | Other | Material | Carbon Steel |
| Processing Type | Forging | Use | drilling and mining |
| components | head assembly, inner and outer tube | Details | drill rods · 1.Inner and outer tube of core barrel · 2.high core recovery efficiency · 3.for different rock formation |
| Packaging Detail | standard export package or as yor request |
|---|---|
| Delivery Detail | within 3-15 days after received payment or according to the qty |
1.Drill rod:BQ, NQ, HQ , PQ , NT, HT
casing tube:BW, NW, HW, HWT
2.Core barrel:BQ NQ NQ2 NQ3 HQ HQ3 PQ PQ3 head assembly and parts
3.AQ-PQ, T2, T6 etc.Diamond core bit, reaming shell & shoe bit (syntheyic and surface-set, PDC)
4.Drill tool:hoisting plug, water swivel, overshot, outer tube & inner tube wrench, foot clamp,etc.
5.Dimensions of drill pipe:
| Dimensions of Drill pipe | |||||||||
| sizes | nominal weight | calculate the weight of flat-side | D/OD | grade | thickness | thickening of the form | |||
| Lb/ft | Kg/m | in | mm | in | mm | ||||
| 2 3/8 | 6.65 | 6.26 | 9.32 | 2.375 | 60.3 | E,X,G,S | 0.280 | 7.11 | external thickening |
| 2 7/8 | 10.40 | 9.72 | 14.48 | 2.875 | 73.0 | E,X,G,S | 0.362 | 9.19 | inside or outside the thickening thickening |
| 3 1/2 | 9.50 | 8.81 | 13.12 | 3.500 | 88.9 | E | 0.254 | 6.45 | inside or outside the thickening thickening |
| 3 1/2 | 13.30 | 12.31 | 18.34 | 3.500 | 88.9 | E,X,G,S | 0.368 | 9.35 | inside or outside the thickening thickening |
| 3 1/2 | 15.50 | 14.63 | 21.79 | 3.500 | 88.9 | E | 0.449 | 11.40 | inside or outside the thickening thickening |
| 3 1/2 | 15.50 | 14.63 | 21.79 | 3.500 | 88.9 | X,G,S | 0.449 | 11.40 | within and outside the outer thickening or thickening |
| 4 | 14.00 | 12.93 | 19.26 | 4.000 | 101.6 | E,X,G,S | 0.330 | 8.38 | inside or outside the thickening thickening |
| 4 1/2 | 13.75 | 12.24 | 18.23 | 4.500 | 114.3 | E | 0.271 | 6.88 | inside or outside the thickening thickening |
| 4 1/2 | 16.60 | 14.98 | 22.31 | 4.500 | 114.3 | E,X,G,S | 0.337 | 8.56 | within and outside the outer thickening or thickening |
| 4 1/2 | 20.00 | 18.69 | 27.84 | 4.500 | 114.3 | E,X,G,S | 0.430 | 10.92 | within and outside the outer thickening or thickening |
| 5 | 16.25 | 14.87 | 22.15 | 5.000 | 127.0 | X,G,S | 0.296 | 7.52 | in thickening |
| 5 | 19.50 | 17.93 | 26.71 | 5.000 | 127.0 | E | 0.362 | 9.19 | inside and outside the thickening |
| 5 | 19.50 | 17.93 | 26.71 | 5.000 | 127.0 | X,G,S | 0.362 | 9.19 | within and outside the outer thickening or thickening |
| 5 | 25.60 | 24.03 | 35.79 | 5.000 | 127.0 | E | 0.500 | 12.70 | inside and outside the thickening |
| 5 | 25.60 | 24.03 | 35.79 | 5.000 | 127.0 | X,G,S | 0.500 | 12.70 | within and outside the outer thickening or thickening |
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