Technology Status of Expandable Liner Hanger in Domestic and Abroad
Abstract: Expandable liner hangers (ELH) have been shown to provide multiple advantages over conventional liner hangers. The expandable liner hanger (ELH) will be expanded by the hydraulic action or mechanical action. The ex-panded body of the ELH can hang the liner reliably. At the same time, the ELH can provide some advantages, such as good seal and hang liner abilities, rotating cementing, etc. The ELH can also resolve some technical difficulties which occur when tripping in liners and cement displacements in ultra-deep wells, extended reach wells and horizontal wells. So, the expandable liner hanger has a broad prospect in applications. The paper aims to introduce the characteristics, operating principles and matching technologies of the Expandable Liner Hanger which is developed by Drilling Tech-nology Research Institute of Xibu Drilling Engineering Company, CNPC.
文章引用: 李晓军 , 穆总结 , 左霞 , 黄永军 (2012) 国内外膨胀尾管悬挂器技术现状简述。 机械工程与技术， 1， 68-72. doi: 10.12677/MET.2012.14013
 许瑞萍, 刘洁, 张玉新等. 石油膨胀管材料的设计准则[J]. 石油机械, 2005, 33(11): 28-31.
 姚辉前, 马兰荣等. 可膨胀尾管悬挂器关键技术[J]. 石油机械, 2010, 38(1): 73-76.