The substitution for general open hole packers, is not only used to realize the well cementing and completion, but also used for uncemented and uncompleted well;

替代常规裸眼封隔器，既可实现固井完井，也可用于非固井完井；

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In well drilling and completion, cementing the process does not overflow occurs (at) or well leakage accidents, and realize safe, rapid and low cost of drilling.

使之在钻井、完井、固井过程中不发生溢流(井喷)或井漏事故，从而实现安全，快速，低成本钻进。

youdao

In well drilling and completion, cementing the process does not overflow occurs (at) or well leakage accidents, and realize safe, rapid and low cost of drilling.

使之在钻井、完井、固井过程中不发生溢流(井喷)或井漏事故，从而实现安全，快速，低成本钻进。

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