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US 12,760,627 B2Granted
Discrete cone for expandable liner hanger in casings with restrictions
AssigneeHalliburton Energy Services, Inc.
InventorsXiaoguang Allan Zhong, Yian Zhao, Vern Szen Tan
Life of this patent
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Abstract
An apparatus for expanding an expandable liner hanger. The apparatus comprises a variable cone comprising one or more wedge segments and one or more circular segments, wherein the one or more wedge segments and the one or more circular segments are configured to radially expand or contract when axially translated along a tapered mandrel.
Claims20
An apparatus for expanding an expandable liner hanger comprising:
- a variable cone comprising one or more wedge segments and one or more circular segments, wherein the one or more wedge segments and the one or more circular segments are configured to radially expand or contract together upon axial translation along a tapered mandrel, and wherein the one or more wedge segments and the one or more circular segments are configured to collectively engage the expandable liner hanger as a composite cone structure when radially expanded.
A system comprising:
- a tapered mandrel;
- and
- a variable cone comprising a one or more wedge segments and a one or more circular segments configured to radially expand or contract together upon axial translation along the tapered mandrel, and wherein the one or more wedge segments and the one or more circular segments are configured to collectively engage an expandable liner hanger as a composite cone structure when radially expanded.
A method comprising:
- disposing a cone system into an expandable liner hanger positioned in a wellbore, wherein the cone system comprises a variable cone and a tapered mandrel, and wherein the variable cone comprises one or more wedge segments and one or more circular segments;
- axially translating the variable cone along the tapered mandrel in a first direction to radially expand the variable cone to an assembled state, wherein the one or more wedge segments and the one or more circular segments radially expand together upon the axially translating of the variable cone along the tapered mandrel;
- expanding the expandable liner hanger via the variable cone in the assembled state, wherein, in the assembled state, the one or more wedge segments and the one or more circular segments of the variable cone are configured to collectively engage the expandable liner hanger as a composite cone structure;
- and
- removing the cone system from the wellbore.
2 more elements
Dependencies are inferred from the claim text.