drillable packer 可钻式封隔器
drillable permanent packer 可钻式永久封隔器
drillable depth 可钻及的深度
drillable drillshoe 可钻式钻鞋
drillable drill bit 可钻型钻头
It's an alloy not readily drillable.
这是不易钻洞的合金。
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。
The internal components of the landing collar are generally fabricated from plastics, cement and other drillable materials.
坐放箍的内部部件一般由塑料、水泥和其它可钻材料制成。
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