Lub hom phiaj 40 50 60 nqes lub qhov pob zeb laum khawm ntsis nqi
Hauv DTH drilling, pob zeb drilling me ntsis yog txuas ntxiv ntawm lub shank, uas lub pob zeb laum piston ntaus ncaj qha.Txij li thaum lub piston nyob rau hauv kev sib cuag ncaj qha nrog lub laum me ntsis, lub zog me ntsis poob.Qhov no muab DTH drilling qhov ze li qhov nkag mus tas li tsis hais lub qhov ntev.
Xim: Ntsuab, Xiav los yog raws li cov neeg siv khoom xav tau
DTH cov khoom yog ua ke nrog lawv cov hammers sib xws (los ntawm qhov drilling qhov taub thiab spline configuration).Cov neeg siv khoom tuaj yeem hloov kho lawv cov khoom DTH hauv ntau txoj hauv kev, xws li hloov cov tungsten carbide ntxig profile (spherical, ballistic, thiab lwm yam), lub ntsej muag profile (lub ntsej muag tiaj tus, concave, convex, thiab lwm yam), thiab lub qhov dej ntws tawm.
| Qauv | Xov txuas | OD (mm) | Rec.Hole Size | Shank Style | Ua haujlwm siab (Bar) |
| CD35 | API 2 3/8" Reg | f82mm ua | φ90-φ105 | DHD 3.5 CD35 | 1.0-1.5Mpa |
| CD45 | API 2 3/8" Reg | f99mm ua | φ110-φ135 | Cop 44 DHD 340 CD45 | 1.0-2.5Mpa |
| CSD4 | API 2 3/8" Reg | f99mm ua | φ110-φ135 | SD4 CSD4 | 1.0-2.5Mpa |
| CQL40 | API 2 3/8" Reg | f99mm ua | φ110-φ135 | QL40 CQL40 | 1.0-2.5Mpa |
| cd55 ua | API 2 3/8" Reg API 3 1/2" Reg | φ125 hli | φ135-φ155 | Cop 54 DHD 350R cd55 ua | 1.0-2.5Mpa |
| CSD 5 | API 3 1/2" Reg | φ125 hli | φ135-φ155 | SD5 CSD 5 | 1.0-2.5Mpa |
| CQL 50 | API 3 1/2" Reg | φ125 hli | φ135-φ155 | Cop 54 QL 50 CQL 50 | 1.0-2.5Mpa |
| cd65 ua | API 3 1/2" Reg | φ148 hli | φ155-φ190 | Cop 64 DHD 360 cd65 ua | 1.0-2.5Mpa |
| CSD 6 | API 3 1/2" Reg | φ148 hli | φ155-φ190 | SD6 CSD 6 | 1.0-2.5Mpa |
| CQL 60 | API 3 1/2" Reg | φ148 hli | φ155-φ190 | Cop 64 qw 60 CQL 60 | 1.0-2.5Mpa |
| cd85 ua | API 4 1/2" Reg | φ185 hli | φ195-φ254 | Cov 84 DHD 380 cd85 ua | 1.0-2.5Mpa |
| CSD 85 | API 4 1/2" Reg | φ185 hli | φ195-φ254 | SD 8 CSD 8 | 1.0-2.5Mpa |
| CQL80 | API 4 1/2" Reg | φ185 hli | φ195-φ254 | qw 80 CQL80 | 1.0-2.5Mpa |
| CSD 10 | API 4 1/2" Reg API 5 1/2" Reg API 6 5/8" Reg | φ225 hli | φ254-φ311 | SD 10 CSD 10 | 1.0-2.5Mpa |
| CN 100 | API 6 5/8" Reg | φ225 hli | φ254-φ311 | NUMA 100 CN 100 | 1.0-2.5Mpa |
| CSD 12 | API 6 5/8" Reg | φ275 hli | φ305-φ445 | SD 12 CSD 12 | 1.0-2.5Mpa |
