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| shot tunnel (igisheva) | |||
| perforation tunnel (Islet); layer perforation (dimock); perforation (в пласте) | |||
| perforation (в скважине; в пласте) | |||
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| perforation channels ("Solids-carrying fluids or drilling mud must be removed from the perforation channels and the formation face to allow a proper dehydration process and complete fill-up." – Well Cementing, edited by E.B. Nelson, 1990 ART Vancouver) | |||
| перфорационный канал: 5 a las frases, 2 temas |
| Petróleo | 4 |
| Sajalín | 1 |