Patent ID: 7540329
Filing Date: 2009-06-02
Classification: E21B

Abstract:
1. A liner hanger for hanging a liner within a bore of a casing string, the liner hanger comprising: a housing for securing into the casing string at a desired location, the housing having an inner wall surface, the inner wall surface having a pocket disposed thereon; a slip disposed within the pocket, the slip having an inner gripping surface; a setting mechanism mounted to the slip, the slip being movable from an upper position fully recessed within the pocket to a lower position wherein the inner gripping surface protrudes inward from the pocket; and a liner engagement member mounted to the setting mechanism and protruding inward from the pocket, the liner engagement member frictionally engaging the liner as the liner is lowered through the setting mechanism causing the slip to move downward and inward to the lower position in engagement with the liner.