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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It is designed specifically to replace a solid body type centralizer for casing running applications and severe well geometries when run in horizontal, long ERD, J-type, S-type and other well designs.

该扶正器最初的设计目的在于替换固体式扶正器，用于下套管作业，以及复杂井身结构，如水平井、大位移井、J -型井、S -型井和具有其他井身结构设计的井。

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