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| 245 | 0 | 0 | _aR&D validates effectiveness of aphron drilling fluids |
| 270 | _a12/09/06 ; 18/05/2005 | ||
| 300 | _a3 p. | ||
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_tDrilling Contractor _gVol. 61, no. 3 (mayo/jun. 2005) ; p. 55-58 |
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_aPopov, Peter _936394 |
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_aGrowcock, Fred _936395 |
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_aGrowcock, Fred _936395 |
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