Eccentric Overburden Bit
Zida za ODEX/Eccentric zimakupatsani mwayi woboola ndikusunga mabowo akuya nthawi imodzi mumitundu yonse ya mapangidwe, ngakhale omwe ali ndi miyala yayikulu.
Njirayi imachokera pa pilot bit and eccentric reamer, yomwe pamodzi imabowola dzenje lalikulupo pang'ono kuposa kukula kwakunja kwa chubu.Izi zimathandiza kuti chubu cha casing chitsatire pobowola pansi pa dzenje.
Mukamagwiritsa ntchito ODEX, gawo lina lamphamvu limapatutsidwa kupita ku chubu chosungira kudzera paphewa pa chipangizo chowongolera, chomwe chimakhudzanso nsapato yapadera yomwe ili kumapeto kwenikweni kwa chotengeracho.
| Mtundu | Chubu Choyika OD(mm) | ID ya Casing Tube (mm) | makulidwe a khoma (mm) | Kuwongolera Chipangizo kukula kwakukulu (mm) | Chida Chokhazikika (mm) | Casing shoe mini Dia(mm) | Pilot D (mm) | Mtundu wa nyundo |
| 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 |
| Chithunzi cha ODEX115 | 146 | 126 | 10 | 123.5 | 155 | 117 | 115 | COP44/DHD340/SD4/QL40 |
| Chithunzi cha ODEX140 | 168 | 148 | 10 | 146 | 180 | 138 | 136 | COP54/DHD350/SD5/QL50 |
| Chithunzi cha ODEX145 | 178 | 158 | 10 | 156 | 192 | 147 | 145 | COP54/DHD350/SD5/QL50 |
| Chithunzi cha ODEX152 | 183 | 163 | 10 | 161 | 196 | 153 | 151 | COP54/DHD350/SD5/QL50 COP64/DHD360/SD6/QL60 |
| Chithunzi cha 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 |
| Chithunzi cha ODEX240 | 273 | 253 | 10 | 251 | 305 | 241 | 240 | COP84/DHD380/SD8/QL80 |
| ODEX280 | 325 | 300 | 12.5 | 298 | 350 | 282 | 280 | DHD112/DHD38 |
