نمایش نتیجه 1 تا 3 از 3 نتیجه یافت شده برای perforating with negative pressure:
n: see perforating with negative pressure.
n: lowed the level of liquidin the wellbore, which made the pressure of hydrostatic column below the pressure of shoting layer, under that condition, shoting is perforated that can lower the degree of pollution.
n: see perforate underbalanced.
n: see perforating with negative pressure.
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