... 钻井事故及处理 drilling accidents and treatments 固井与完井 well cementing and completion 钻井新方法 advanced drilling techniques ...
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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；
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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