نمایش نتیجه 1 تا 5 از 5 نتیجه یافت شده برای hole annulus:
n: Refers to the annular between drill collar and wellbore.
n: refer to drill pipe annulus
n: when stop the pump ,because the fluid density in the pipe is hihger than that in the hole annulus ,the fluid surface in the pipe desents leading the appearance of vacuum
n: the annular space between the pipe and the well wall
n: refer toannular space
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