Paipa Keri Pai
Ko nga putorino Drill e whakamahia nuitia ana i roto i te maina, te torotoro whenua me nga momo keri (wai, hinu, hau, me etahi atu) kaupapa.I te mea he pai te hanga putorino drill, ka mahia e matou nga momo paerewa katoa me nga putorino kore-paerewa mo o taatau kaihoko.Ko a matou paipa putorino tae atu ki te putorino pukoro maitai, putorino keri keri, putorino poka wai, putorino puna hinu, putorino API, putorino DTH, tokotoko drill waea, aha atu.
Ko nga ahuatanga matua o te ngongo DTH kounga teitei ko te mauroa, te tika me te whakahaere.
1.Pipe tinana: kumea matao paipa tui.na te paipa he tika te rahi, he pai te pokapū.
2.Ko nga mea o te tinana paipa he rite te karaehe ki a Sandvik.
3.Thread tūhono: Te wera me te Nitrogen maimoatanga, na te paipa he pai ake te roa me te ngawari ki te uta me te tango.
4.Friction fehokotaki'anga.
Paerewa DTH putorino:
Diamita: 76mm, 89mm, 102mm, 114mm, 127mm, 140mm;
Te roa: 1000mm, 1500mm, 2000mm, 3000mm, 5000mm, 6000mm;
Miro: 2 3/8” API REG, 2 7/8” API REG, 3 1/2” API REG, 4 1/2” API REG,
2 3/8 API IF, 3 1/2 API IF
| Rahi | Papatipu ingoa Lb/ft | Momo taumaha kua tatauhia | Te matotoru o te pakitara | |||
| i roto. | mm | lb/ft | kg/m | i roto. | mm | |
| 2 3/8 | 60.3 | 6.65 | 6.26 | 9.32 | 0.28 | 7.11 |
| 2 7/8 | 73 | 10.4 | 9.72 | 14.48 | 0.362 | 9.19 |
| 3 1/2 | 88.9 | 9.5 | 8.81 | 13.12 | 0.254 | 6.45 |
| 3 1/2 | 88.9 | 13.3 | 12.31 | 18.34 | 0.368 | 9.35 |
| 3 1/2 | 88.9 | 15.5 | 14.63 | 21.79 | 0.449 | 11.4 |
| 3 1/2 | 88.9 | 15.5 | 14.63 | 21.79 | 0.449 | 11.4 |
| 4 | 101.6 | 14 | 12.93 | 19.26 | 0.33 | 8.38 |
| 4 1/2 | 114.3 | 13.75 | 12.24 | 18.23 | 0.271 | 6.88 |
| 4 1/2 | 114.3 | 16.6 | 14.98 | 22.31 | 0.337 | 8.56 |
| 4 1/2 | 114.3 | 20 | 18.69 | 27.84 | 0.43 | 10.92 |
| 5 | 127 | 16.25 | 14.87 | 22.15 | 0.296 | 7.52 |
| 5 | 127 | 19.5 | 17.93 | 26.71 | 0.362 | 9.19 |
| 5 | 127 | 19.5 | 17.93 | 26.71 | 0.362 | 9.19 |
| 5 | 127 | 25.6 | 24.03 | 35.79 | 0.5 | 12.7 |
| 5 | 127 | 25.6 | 24.03 | 35.79 | 0.5 | 12.7 |
| 5 1/2 | 139.7 | 21.90 | 19.81 | 29.51 | 0.361 | 9.17 |
| 5 1/2 | 139.7 | 24.70 | 22.54 | 33.57 | 0.415 | 10.54 |
