| 000 | 00577nab a2200181 4500 | ||
|---|---|---|---|
| 005 | 20260520000913.0 | ||
| 008 | 260224s2011 xxu | ||
| 245 | 0 | 0 | _aImproved drilling systems save rig time |
| 260 |
_a _b _cene. 2011 |
||
| 270 | _a18/01/2011 ; 18/01/2011 | ||
| 300 | _a2 p. ; 61-62 | ||
| 520 | _aTranscripción del resumen del autor. Optimized motors can reduce drilling time in difficult, high-temperature shale formations. | ||
| 581 | _a1 | ||
| 773 | 0 |
_tE & P _g84 |
|
| 942 | _cARTICULO | ||
| 100 | 1 |
_aDunnahoe, Tayvis _939409 |
|
| 999 |
_c172683 _d172683 |
||