... star centralizer 星形定心器 casing centralizer 套管扶正器 centralizer sub 扶正器接头 ...
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spiral casing centralizer 套管旋流扶正器
bow spring casing centralizer 弓形弹簧套管扶正器
Casing swirl centralizer 套管旋流扶正器
·2,447,543篇论文数据，部分数据来源于NoteExpress
A kind of device which can keep the casing at the center of borehole and can also generate helical flow of cement slurry, which is the Spring Whirlflow casing Centralizer, is presented in this paper.
提供了一种既能保证套管居中，又能产生水泥浆环空螺旋流的套管弹性旋流扶正器。
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