pile plugging operation 封管桩操作
During water plugging operation, the key factor of success is how to protect non-target zones from pollution.
在堵水封窜作业中，如何保护非目的层不受污染，是施工成功与否的关键。
The pig is blocked frequently when pipeline pigging, which will influence the normal operation due to severe plugging sometimes.
现场清管作业时清管器经常被卡堵，严重时会影响正常生产。
It is especially suitable for plugging high permeable, macro pore path formations and convenient for field operation with a small amount of volume and a low cost, obtaining a good effect.
尤其适应于封堵高渗透、大孔道地层， 且现场施工简便、施工用量少、成本低， 取得了很好的应用效果。
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