Study on Surface Configurations and Force Transfer Mechanism of Dual-Wedge Shaped Slips for Liner Hanger

The penetration force and depth of the slip teeth are important factors influencing hanging capacity liner hanger, which can lead to failure well cementation. In this study, a method calculate dual-wedge was presented by considering surface configuration transfer mechanism in three dimensions. interaction between slips casing simulated using ABAQUS 6.14 software, contact (penetration force) obtained. Experimental research carried out verify correction calculation simulation. strain obtained after set under axial loads. experimental results, theoretical prediction, numerical simulation good agreement. effects geometrical parameters on characteristics were discussed, shows that increases with increase weight Eulerian angle γ, it decreases α friction coefficient. geometric be designed obtain an optimal force, ensure penetrate into inner wall without damage casing. optimizing related geometry slips.