Eccentric Overburden Bit
Ohun elo ODEX/Eccentric n fun ọ laaye lati lu ati ṣajọ awọn ihò jinlẹ nigbakanna ni gbogbo iru idasile, paapaa awọn ti o ni awọn apata nla.
Ọna naa da lori bit awaoko ati eccentric reamer, eyiti o papọ lu iho kan diẹ ti o tobi ju iwọn ila opin ita ti tube casing.Eleyi kí awọn casing tube lati tẹle awọn lu bit isalẹ iho.
Nigbati o ba nlo ODEX, apakan ti agbara ipa ti wa ni iyipada si tube casing nipasẹ ejika kan lori ẹrọ itọnisọna, eyi ti o ni ipa lori bata casing pataki ni opin isalẹ ti casing.
| Iru | Tube Casing OD(mm) | ID Tube Casing(mm) | Sisan ogiri (mm) | Itọnisọna Ẹrọ ti o pọju iwọn (mm) | Dia ti a tun ṣe (mm) | Bata mimu mini Dia(mm) | Pilot bit D (mm) | Hammer iru |
| ODEX85 | 108 | 94 | 7 | 92 | 117 | 86 | 85 | COP34/DHD3.5 |
| ODEX90 | 114 | 101 | 6.5 | 99 | 125 | 92 | 90 | COP34/DHD3.5 |
| ODEX98 | 127 | 109 | 9 | 107 | 138 | 100 | 98 | COP34/DHD3.5 |
| ODEX115 | 146 | 126 | 10 | 123.5 | 155 | 117 | 115 | COP44/DHD340/SD4/QL40 |
| ODEX140 | 168 | 148 | 10 | 146 | 180 | 138 | 136 | COP54/DHD350/SD5/QL50 |
| ODEX145 | 178 | 158 | 10 | 156 | 192 | 147 | 145 | COP54/DHD350/SD5/QL50 |
| ODEX152 | 183 | 163 | 10 | 161 | 196 | 153 | 151 | COP54/DHD350/SD5/QL50 COP64/DHD360/SD6/QL60 |
| ODEX165 | 194 | 174 | 10 | 172 | 206 | 162 | 160 | COP64/DHD360/SD6/QL60 |
| ODEX190 | 219 | 199 | 10 | 196 | 234 | 187 | 185 | COP64/DHD360/SD6/QL60 |
| ODEX208 | 245 | 225 | 10 | 222 | 263 | 210 | 208 | COP84/DHD380/SD8/QL80 |
| ODEX240 | 273 | 253 | 10 | 251 | 305 | 241 | 240 | COP84/DHD380/SD8/QL80 |
| ODEX280 | 325 | 300 | 12.5 | 298 | 350 | 282 | 280 | DHD112/DHD38 |
