Eccentric Overburden Bit
Vifaa vya ODEX/Eccentric hukuwezesha kutoboa na kuchimba mashimo yenye kina kirefu kwa wakati mmoja katika aina zote za uundaji, hata zile zilizo na mawe makubwa.
Mbinu hii inategemea kifaa cha majaribio na kisanii ekcentric, ambacho kwa pamoja hutoboa shimo kubwa kidogo kuliko kipenyo cha nje cha bomba la casing.Hii huwezesha bomba la casing kufuata sehemu ya kuchimba chini ya shimo.
Unapotumia ODEX, sehemu ya nishati ya athari huelekezwa kwenye bomba la casing kupitia bega kwenye kifaa cha mwongozo, ambayo huathiri kiatu maalum cha casing kwenye mwisho wa chini wa casing.
Aina | Casing Tube OD(mm) | Kitambulisho cha Tube (mm) | Unene wa ukuta (mm) | Upeo wa juu wa ukubwa wa Kifaa (mm) | Kipenyo kilichorekebishwa (mm) | Kiatu kidogo Dia(mm) | Pilot D (mm) | Aina ya 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 |
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 |