Eccentric Overburden Bit
ODEX / Eccentric cov cuab yeej tso cai rau koj los laum thiab cov ntaub ntawv sib sib zog nqus ib txhij hauv txhua hom kev tsim, txawm tias cov pob zeb loj.
Cov txheej txheem yog raws li tus tsav me ntsis thiab eccentric reamer, uas ua ke xyaum ib lub qhov me ntsis loj dua li sab nraud txoj kab uas hla ntawm lub casing raj.Qhov no ua rau lub raj casing ua raws li qhov xyaum me ntsis hauv lub qhov.
Thaum siv ODEX, ib feem ntawm qhov cuam tshuam lub zog yog hloov mus rau lub raj casing ntawm lub xub pwg ntawm cov cuab yeej qhia, uas ua rau muaj kev cuam tshuam rau cov khau tshwj xeeb ntawm qhov kawg ntawm lub casing.
| Hom | Casing Tube OD (mm) | Tube ID (mm) | Casing phab ntsa thickness (mm) | Qhia ntaus ntawv max loj (mm) | Qhov siab (mm) | Casing khau mini Dia (mm) | Pilot ntsis D (mm) | Rauj hom |
| SIB 85 | 108 | 94 | 7 | 92 | 117 | 86 | 85 | COP34/DHD 3.5 |
| ODEX 90 | 114 | 101 | 6.5 | 99 | 125 | 92 | 90 | COP34/DHD 3.5 |
| SIB 98 | 127 | 109 | 9 | 107 | 138 | 100 | 98 | COP34/DHD 3.5 |
| SIB 115 | 146 | 126 | 10 | 123.5 Nws | 155 | 117 | 115 | COP44/DHD340/SD4/QL40 |
| SIB 140 | 168 | 148 | 10 | 146 | 180 | 138 | 136 | COP54/DHD350/SD5/QL50 |
| SIB 145 | 178 | 158 | 10 | 156 | 192 | 147 | 145 | COP54/DHD350/SD5/QL50 |
| SIB 152 | 183 | 163 | 10 | 161 | 196 | 153 | 151 | COP54/DHD350/SD5/QL50 COP64/DHD360/SD6/QL60 |
| SIB 165 | 194 | 174 | 10 | 172 | 206 | 162 | 160 | COP64/DHD360/SD6/QL60 |
| SIB 190 | 219 | 199 | 10 | 196 | 234 | 187 | 185 | COP64/DHD360/SD6/QL60 |
| TIAB SA 208 | 245 | 225 | 10 | 222 | 263 | 210 | 208 | COP84/DHD380/SD8/QL80 |
| SIB 240 | 273 | 253 | 10 | 251 | 305 | 241 | 240 | COP84/DHD380/SD8/QL80 |
| TIAB SA 280 | 325 | 300 | 12.5 Nws | 298 | 350 | 282 | 280 | DHD 112 / DHD 38 |
