Moroalo oa ho Drill Bit / Eccentric Drill Bit
Lisebelisuoa tsa ho cheka tse boima haholo
Sistimi ea ODEX bakeng sa lihamore tsa DTH tse etselitsoeng ho cheka le ho qoelisoa ka nako e le 'ngoe ka moroalo o boima.Lisebelisoa tsena tsa nako e telele tsa ho cheka li feta har'a mafika a maholo bakeng sa ho hula boima bo bobebe moo ho kenyellelitsoeng mekotla e theko e tlaase ka mor'a 'ona.Lisebelisoa tsena tsa ho cheka moroalo o boima ho bonolo ho li tlosa ka mokoting / botebong 'me li fuoa bareki ba rona ka lintlha tse latelang tsa tekheniki:
1. E sebelisoa ho cheka moo sebopeho sa mafika se imetsoeng 'me se hloka casing tube ho tšehetsa.
2. tenyetseha ho bula le ho koala.
3. Sebaka sa Kopo: E loketse ho cheka liliba tsa metsi, liliba tsa mocheso oa mocheso, le li-miscopies tse khutšoane tse mahareng tsa mokoti oa moaho, projeke ea letamo le likou.
4. Melao-motheo ea Moralo: Etsa hore casing e latele bonolo le lisebelisoa le ts'ebetso e be bonolo
5. Melemo e Ikhethileng: Sebopeho se bonolo, ts'ebetso e bonolo, boleng bo ka tšeptjoang, lisebelisoa tsa ho cheka tse ka khutlisang, bophelo bo bolelele ba tšebeletso.
6. Sephutheloana se ka hare se nang le mabokose, sephutheloana sa ka ntle se nang le linyeoe tsa lepolanka
| Hamore | Pilotdiameter | Reamiddiameter | Casing tubeoutside bophara | Casing tube lerako botenya | Casing tube lebota botenya/o seeta sa 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) |
