drilling liner hanger
可膨胀尾管悬挂器 ELH
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文章以尾管悬挂器的结构原理作为基础，结合井下情况加以分析，总结出了一套成功使用悬挂器的经验。
Based on the structural principle of the drilling liner hangers, with the analysis of down-hole situations, the article sums a set of success experience to operate the hangers.
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