可膨胀尾管悬挂器技术及其应用

Application and technology of expandable liner hanger

可膨胀管悬挂器(ELH)作为尾管固井、完井工艺中一项革新型工具,可以成功地解决常规悬挂器因其原理和结构特点带来的固井施工难题及重叠段固井质量差等问题,成为下一代悬挂器研究的重点。文中以实体膨胀悬挂器系统为例,介绍了其结构原理及应用情况。

As a new cementing tool , the Expandable Liner Hanger（ELH） can solve the poor cementing problem often occurred in the overlaying interval in conventional liner cementing operation, and becoming the focus of the research about Liner Hanger. The paper introduces the technological principle, application, existing problem and developing trends of solid expandable technology. And it points out that the manufacturer should carry out research on this technology.