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| Russian | English |
| образование гребня воды в пласте | cresting (The change in oil-water or gas-oil contact profiles as a result of drawdown pressures during production. Cresting occurs in horizontal or highly deviated wells and is affected by the characteristics of the fluids involved and the ratio of horizontal to vertical permeability. Kenny Gray) |
| поперечные бороздки с закруглёнными гребнями на боковой поверхности керна | chatter marks (возникающие в результате вибрации или быстрой подачи) |