Patent ID: 8561690

Claim:
An expansion cone assembly for setting a liner hanger, the expansion cone assembly comprising: a cone mandrel having an outer frustoconical surface; a lead cone slidably disposed around the cone mandrel and having an outer frustoconical surface with a maximum outer diameter; and a collapsible cone slidably disposed at least partially around the outer frustoconical surface of the cone mandrel, the collapsible cone including a solid ring portion without segments having a plurality of radially shiftable segments extending from the solid ring portion, the radially shiftable segments having slots therebetween, wherein, in an expansion configuration, the outer frustoconical surface of the cone mandrel radially props the radially shiftable segments of the collapsible cone such that the collapsible cone has a first maximum outer diameter that is greater than the maximum outer diameter of the lead cone; and wherein, in a retrieval configuration, the collapsible cone axially shifts relative to the outer frustoconical surface of the cone mandrel radially unproping the radially shiftable segments of the collapsible cone such that the collapsible cone has a second maximum outer diameter that is no more than the maximum outer diameter of the lead cone.