I-Overburden Drill Bit / Eccentric Drill Bit
Amathuluzi Okugaya Amandla Kakhulu
Amasistimu e-ODEX ezando ze-DTH eziklanyelwe ngokukhethekile ukubhola kanye nekesi ngesikhathi esisodwa ngomthwalo omningi.Lawa mathuluzi okumba aqinile adlula kalula ematsheni amakhulu ukuze adonse ayisindi lapho kufakwa khona amabhokisi ashibhile ngemva kwawo.Lawa mathuluzi okumba umthwalo osindayo kulula ukuwakhipha emgodini/ekujuleni futhi anikezwa amakhasimende ethu ngalezi zici ezilandelayo:
1. Kufakwe ekubhobolweni lapho ukwakheka kwamadwala kuwumthwalo omkhulu futhi kudinga ithubhu ye-casing ukuze kusekelwe.
2. eguquguqukayo ukuze uvule futhi uvale.
3. Uhla Lokufaka Isicelo: Lulungele ukumba imithombo yamanzi, imithombo ye-geothermal, kanye nama-miscopies amafushane ama-medium-type grouting imbobo yesakhiwo, iphrojekthi yedamu kanye namachweba.
4. Izimiso Zokuklama: Yenza i-casing ilandele kalula futhi okokusebenza nokusebenza kube lula
5. Izinzuzo Ezivelele: Isakhiwo esilula, ukusebenza okulula, ikhwalithi enokwethenjelwa, amathuluzi okubhola atholakalayo, impilo ende yesevisi.
6. Iphakethe langaphakathi elinamakhathoni, iphakethe langaphandle elinamacala okhuni
| Isando | I-Pilotdiameter | I-Remediameter | Casing tubeoutside ububanzi | Ugqinsi lwama-tube wall | I-Casing tube wall ugqinsi/o isicathulo se-casing | |
| ODEX 90 | 3″ | 90 (3-9/16) | 123(4-13/16) | 114.3 (4-1/2) | 6.3 (1/4) | 10 (3/8) |
| ODEX 115 | 3″-4″ | 115 (4-1/2) | 152 (6) | 139.7 (5-1/2) | 6.3 (1/4) | 10 (3/8) |
| ODEX 127 | 4″ | 127 (5) | 165 (6-1/2) | 152.4 (6) | 6.3 (1/4) | 10 (3/8) |
| ODEX 140 | 4″-5″ | 140 (5-1/2) | 181 (7-1/8) | 168.3 (6-5/8) | 6.3 (1/4) | 12.7 (1/2) |
| ODEX 152 | 5″-6″ | 152 (6) | 192 (7-9/16) | 177.8 (7) | 6.3 (1/4) | 10 (3/8) |
| ODEX 165 | 5″-6″ | 165 (6-1/2) | 209 (8-7/32) | 193.7 (7-5/8) | 6.3 (1/4) | 12.7 (1/2) |
| ODEX 190 | 6″-8″ | 190 (7-1/2) | 235 (9-1/4) | 219.1 (8-5/8) | 6.3 (1/4) | 12.7 (1/2) |
