Invention Grant
US07779910B2 Expansion cone for expandable liner hanger 有权
可膨胀衬垫吊架用膨胀锥

Expansion cone for expandable liner hanger
Abstract:
An expandable liner hanger system includes an expandable liner hanger and an expansion cone having a first outer diameter when driven through the expandable liner hanger in a first direction to expand the expandable tubing. The expandable liner hanger system also includes a polished bore receptacle having a lower end coupled to an upper end of the expandable liner hanger by a coupling, the coupling having an inner diameter smaller than the first outer diameter. In the run in condition, the expansion cone is positioned below the coupling.
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