A section of heavy walled tubing that is placed across any perforated interval through which the production tubing must pass, such as may be required in multiple zone completions.
置于任一射孔层段的一段厚壁油管，这时生产油管必须通过此射孔层段，如在多层完井中所要求的。
On to the field remained only the walled tabor camp of the Cossacks, which was protected from being immediately overrun that day and the next when storms brought unusually heavy rain.
从流窜那天开始，战场上，只剩下壁垒化的哥萨克辎重车车垒营地提供保护，接着，暴风带来不寻常的大雨。
A relatively short, heavy-walled completion component installed in areas where turbulence is anticipated.
相对较短的厚壁完井部件，它装在预计发生紊流的区域。
A relatively short, heavy-walled completion component installed in areas where turbulence is anticipated.
相对较短的厚壁完井部件，它装在预计发生紊流的区域。
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