Seal and anchor for expandable liner hangers
AssigneeHalliburton Energy Services, Inc.
InventorsMichael Linley Fripp, Mark S. Holly, Daniel Craig Newton, Chee Sing Kelvin Loh
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Abstract
A variety of methods and apparatus are disclosed, including, in one embodiment, an expandable liner hanger including a first raised portion as a sealing element that is a first material to engage a casing in a wellbore to form a seal between the expandable liner hanger and the casing; and/or a second raised portion as an anchor that is a second material to engage the casing to anchor the expandable liner hanger with the casing, wherein the first material is softer than the second material.
Claims21
An expandable liner hanger comprising:
- a first raised portion as a sealing element to engage a casing in a wellbore to form a seal between the expandable liner hanger and the casing, wherein the first raised portion comprises a first metal;
- and
- a second raised portion as an anchor to engage the casing to anchor the expandable liner hanger with the casing, wherein the second raised portion comprises a second metal harder than the first metal.
A method of applying an expandable liner hanger, comprising:
- moving the expandable liner hanger to a selected position in a wellbore, wherein a first raised portion comprising a first metal and a second raised portion comprising a second metal are disposed about a base pipe of the expandable liner hanger;
- engaging wellbore casing in the wellbore with the first raised portion to form a seal between the expandable liner hanger and the wellbore casing;
- and
- engaging the wellbore casing with the second raised portion, thereby anchoring the expandable liner hanger to the wellbore casing, wherein the first metal is softer than the second metal.
Dependencies are inferred from the claim text.