| 摘要 |
A universal liner hanger apparatus is shown for hanging a liner in a well bore which has a universal body having upper and lower connecting ends. A hanger mechanism including a plurality of gripping slips and slip expanders are carried on the tubular body for engaging the well bore casing. Interchangeable setting mechanisms can be connected to a selected one of the upper and lower connecting ends and are actuable to engage the gripping slips with the slip expanders responsive to each of mechanical manipulation and fluid pressure. A single universal body is used with each of the different setting mechanisms to make-up the universal liner hanger apparatus. The hanger mechanism shown includes a plurality of longitudinal bars of single piece construction with spaced slip elements integrally formed therein. The longitudinal bars include a guide portion adapted to be slidingly received within guide tracks formed in selected ones of the expanders on the exterior of the tubular body. Sliding movement of the guide portions within the respective guide tracks causes the spaced slip elements to ride over the slip expanders to move the slip elements radially outward to engage the well bore.
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