大内径旁通和大膨胀间隙确保工具在钻除过程中的可靠性。
D. bypass and large extrusion gap ensure reliability during the removal process.
为了解决钻井漏失在处理过程中遇到的架桥材料较大而无法通过钻井泵滤网和钻头的问题，设计了一种旁通式堵漏材料送入工具。
During the drilling leakage treatment, the bridging material cannot pass through the drilling pump and drill bit due to its larger size.
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