Packer needs to be fragmented but DF set.
需要拆分数据包但是设置DF。
A retrievable or drillable packer is set above the formation to be cemented.
在要被注水泥的地层的上面坐封一个可收回封隔器或可钻封隔器。
A hydraulic packer typically is set using hydraulic pressure applied through the tubing string rather than mechanical force applied by manipulating the tubing string.
一般地，经油管柱施加液压压力而不是由操纵油管柱施加机械力使封隔器坐封。
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