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Concentric Casing System With Blocks
Applied to drill complex rock formations
Drills at any angle
Good straightness of borehole
Maximum depth of horehole is 80Meters
Drills at any angle
Good straightness of borehole
Maximum depth of horehole is 80Meters
More Details
| Model | O.D of casing tube(mm) | I.D of casing tube(mm) | Wall thickness(mm) | Guide device max Dia.(mm) | Reamed Dia.(mm) | Max O.D of normal bit(mm) | Blocks qty | Hammer type | Weight(kg) |
| T186 | 219 | 199 | 10 | 197 | 234 | 185 | 3 | COP64/DHD360/SD6/QL60/MISSION60 | 61 |
| T210 | 245 | 225 | 10 | 222 | 260 | 210 | 3 | JS8/COP84/DHD380/SD8/QL80 | 88 |
| T240 | 273 | 253 | 10 | 251 | 305 | 240 | 3 | JS8/COP84/DHD380/SD8/QL80 | 96.5 |
| T280 | 325 | 305 | 10 | 302 | 350 | 282 | 3 | JS8/COP84/DHD380/SD8/QL80 | 115 |
| T305 | 355 | 325 | 10 | 322 | 380 | 305 | 3 | DHD112/NUMA120 | 214 |
| T365 | 406 | 382 | 12 | 380 | 432 | 365 | 4 | DHD112/NUMA120 | 254 |
| T432 | 480 | 454.6 | 12.7 | 450 | 505 | 432 | 4 | TK14/NUMA125 | 415 |
| T460 | 508 | 482.6 | 12.7 | 479 | 534 | 461 | 4 | NUMA180/TH18 | 630 |
| T510 | 560 | 534.6 | 12.7 | 530 | 590 | 510 | 4 | NUMA180/TH18 | 730 |
| T553 | 610 | 584.6 | 12.7 | 582 | 639 | 553 | 4 | NUMA180/TH18 | 895 |
| T596 | 660 | 628 | 16 | 625 | 690 | 596 | 4 | NUMA180/TH18 | 946 |
| T645 | 711 | 679 | 16 | 675 | 741 | 645 | 4 | NUMA180/TH18 | 1010 |
| T694 | 762 | 730 | 16 | 726 | 792 | 694 | 4 | TH24/NUMA240 | 1595 |
| T744 | 813 | 781 | 16 | 776 | 845 | 744 | 6 | TH24/NUMA240 | 2436 |
| T846 | 914 | 882 | 16 | 878 | 946 | 846 | 6 | TH24/NUMA240/QL300 | 2756 |
| T948 | 1016 | 964 | 16 | 980 | 1050 | 948 | 6 | TH24/NUMA240/QL300 | 3076 |
