A standpipe was crucial for smooth circulation.
一根立管对实现顺利循环至关重要。
Through this high pressure line, mud is pumped in to the standpipe and drill pipe.
通过这根高压管线，泥浆被泵入立管和钻忏杆。
The total pressure drop in hung-up regime is approximately equal to that in the standpipe.
并且证明悬料区的总压降可以近似等于立管的压降。
The total pressure drop in hung-up regime is approximately equal to that in the standpipe.
并且证明悬料区的总压降可以近似等于立管的压降。
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