Two-stage expandable liner hanger
A method for expanding a two-stage expandable liner hanger includes expanding a first section of an expandable tubular having the first section and a second section. The first section includes one or more anchoring ribs. The method further includes expanding the second section of the expandable tubular after cement is pumped into the expandable tubular.
1 . A method comprising:
conveying a setting tool, a liner hanger, and a liner, into a wellbore via a work string, wherein the setting tool is disposed uphole from a first section of the liner hanger, and wherein the liner hanger comprises:
the first section of the liner hanger positionable inside a casing in the wellbore, wherein the first section has a plurality of vertical anchoring ribs extending radially outward from an exterior surface of the first section, wherein the plurality of vertical anchoring ribs are disposed about the first section to form one or more longitudinal grooves configured to provide respective flow conduits for cement during cementing operations with the first section in an expanded position, wherein the first section is configured to expand, via the setting tool, to drive the plurality of vertical anchoring ribs into a biting engagement with the casing; and
a second section of the liner hanger coupled to the first section, wherein the second section has one or more sealing members disposed on an exterior surface of the second section, wherein the one or more sealing members are configured to engage and circumferentially seal the second section against the casing in response to expansion of the second section, wherein the second section is expandable, via the setting tool, independently of the first section;
expanding the first section of the liner hanger with an expansion cone of the setting tool;
cementing the liner hanger, wherein cement is configured to flow between the liner hanger and the casing through the one or more longitudinal grooves formed between the plurality of vertical anchoring ribs; and
expanding the second section of the liner hanger with the expansion cone after cement is pumped into the liner hanger.
2 . The method of claim 1 , wherein the expandable tubular is disposed in the wellbore.
3 . The method of claim 1 , wherein expanding the first section of the expandable tubular further comprises disposing the setting tool in the wellbore and extending the setting tool through the first section of the expandable tubular.
4 . The method of claim 3 , further comprising removing the setting tool from the wellbore before the cement is pumped into the expandable tubular.
5 . The method of claim 3 , wherein the cement is pumped through the expandable tubular while the setting tool is disposed in the wellbore.
6 . The method of claim 1 , wherein a fluid passageway is disposed between the first section and the second section.
7 . The method of claim 6 , further comprising allowing cement to flow through the fluid passageway.
8 . The method of claim 1 , wherein the second section is configured to create a metal-to-metal seal with an interior surface of a casing of the wellbore.
9 . A method comprising:
expanding a first section of an expandable tubular of a liner hanger assembly, with a setting tool, into an engagement with a casing of a wellbore, wherein the expandable tubular comprises the first section and a second section, wherein the first section is positioned inside the casing, wherein the first section comprises one or more vertical anchoring ribs extending radially outward from an exterior surface of the first section, wherein the plurality of vertical anchoring ribs are disposed about the first section to form one or more longitudinal grooves configured to provide respective flow conduits for cement during cementing operations with the first section in an expanded position wherein the first section is configured to expand, via the setting tool to drive the plurality of vertical anchoring ribs into the engagement with the casing; and
expanding the second section of the expandable tubular with the setting tool after cement is pumped into the expandable tubular, wherein the second section of the expandable tubular further comprises one or more sealing members disposed on an exterior surface of the second section wherein the one or more sealing members are configured to engage and circumferentially seal the second section against the casing of the wellbore in response to expansion of the second section, and wherein the second section is expandable, via the setting tool independently of the first section.
10 . The method of claim 9 , further comprising conveying the setting tool, the liner hanger assembly, and a liner, into the wellbore via a work string, wherein the setting tool is disposed uphole from the first section of the expandable tubular of the liner hanger assembly.
11 . The method of claim 9 , wherein expanding the first section of the expandable tubular further comprises disposing the setting tool in the wellbore and extending the setting tool through the first section of the expandable tubular.
12 . The method of claim 11 , further comprising removing the setting tool from the wellbore before the cement is pumped into the expandable tubular.
13 . The method of claim 11 , wherein the cement is pumped through the expandable tubular while the setting tool is disposed in the wellbore.
14 . The method of claim 9 , wherein a fluid passageway is disposed between the first section and the second section, further comprising allowing the cement to flow through the fluid passageway.
15 . The method of claim 9 , wherein the first section includes an upper section of the expandable tubular, and wherein the second section includes a lower section of the expandable tubular.
16 . The method of claim 9 , wherein the second section is configured to create a metal-to-metal seal with an interior surface of the casing of the wellbore.
17 . The method of claim 9 , wherein the engagement between the one or more vertical anchoring ribs and the casing is configured to maintain a radial gap between an exterior surface of the first section and the casing to allow fluid flow through the longitudinal grooves with the first section in the expanded position.