| US 7,540,329 B2 | ||
| Casing coupler liner hanger mechanism | ||
| Peter J. Fay, Houston, Tex. (US); Gerald D. Lynde, Houston, Tex. (US); and Edward J. O'Malley, Houston, Tex. (US) | ||
| Assigned to Baker Hughes Incorporated, Houston, Tex. (US) | ||
| Filed on Apr. 18, 2007, as Appl. No. 11/787,804. | ||
| Prior Publication US 2008/0257561 A1, Oct. 23, 2008 | ||
| Int. Cl. E21B 23/00 (2006.01); E21B 43/10 (2006.01) | ||
| U.S. Cl. 166—382 [166/208; 166/216; 166/211; 166/217] | 20 Claims |
| 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.
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