Cnpc Engineering Technology R&d Company Limited

Shaohua Zhou

Gang Wang

Gang Chen

Tao Jia

Mingjie Lv

Jianli Wang

Binggui Xu

Hongwei Yin

Yongliang Yu

Zhitong Liu

Huijuan Guo

Fei He

Yingjie Zhu

Guojun Liu

Quanli Zhang

Wanjun Li

Mingmin He

The present invention discloses an expandable liner hanger system comprising a central pipe and an expandable pipe, with an expansion cone provided therebetween the central pipe and expandable pipe in a way that the expansion cone is movable along the central pipe, so that the expandable pipe is expanded; wherein, the expansion cone comprises an expansion cone seat move along the central pipe, and an expansion cone sleeve fitted over the expansion cone seat, the connection between the expansion cone seat and the expansion cone sleeve is configured in a way that the expansion cone sleeve can move upward together with the expansion cone seat along the central pipe so that the expandable pipe is expanded, and the central pipe can drive the expansion cone seat to disengage from the expansion cone sleeve.

Expandable liner hanger

Growing community of inventors

Beijing, China

Shaohua Zhou