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US 12,644,354 B2Granted
Packer back-up shoe
AssigneeHalliburton Energy Services, Inc.
InventorsShobeir Pirayeh Gar, Frank Vinicia Acosta Villarreal
Life of this patent
Estimating the term…
Abstract
A support shoe for a sealing element of a packer assembly has a support shoe arm extending longitudinally over an outer surface of the sealing element. A support shoe leg extends beneath the sealing element and the top of a ramped surface of a setting sleeve. A connecting portion connects the support shoe arm and the support shoe leg, and the support shoe envelops an upper end of the sealing element.
Claims16
A packer assembly comprising:
- a packer mandrel;
- a sealing element disposed about the packer mandrel;
- a setting sleeve comprising a generally cylindrical portion with a sloped ramp extending longitudinally and radially inwardly therefrom disposed about the packer mandrel and movable longitudinally thereon to move the packer assembly from an unset to a set position in which the sealing element expands to engage a wellbore casing in which the packer assembly is placed;
- and
- a support shoe comprising:
- a support shoe arm extending longitudinally over an outer surface of the sealing element;
- and
- a support shoe leg connected to the support shoe arm, the support shoe leg being engaged with the sloped ramp and positioned in a space between the sloped ramp of the setting sleeve and the sealing element, wherein the support shoe leg rotates radially outwardly when the packer assembly moves from the unset to the set position.
5 more elements
A packer assembly comprising:
- a support shoe comprising:
- a support shoe arm extending longitudinally over an outer surface of a sealing element of the packer assembly;
- a support shoe leg extending beneath the sealing element;
- and
- a connecting portion connecting the support shoe arm and the support shoe leg, the support shoe enveloping an upper end of the sealing element;
- a discrete cover sleeve comprising a cover sleeve body and a flexible cover sleeve interface extending from the cover sleeve body, the flexible cover sleeve interface being engaged with the connecting portion of the support shoe, the cover sleeve being positioned to apply an axially directed force to the support shoe;
- a packer mandrel, the sealing element being disposed about the packer mandrel;
- and
- a setting sleeve disposed about the packer mandrel and movable from a first to a second position on the packer mandrel to move the packer assembly from an unset to a set position in which the sealing element expands to engage a casing in which the packer assembly is placed, the setting sleeve comprising a generally cylindrical portion with a sloped ramp extending longitudinally and radially inwardly therefrom, the support shoe leg being positioned in a gap between the sloped ramp of the setting sleeve and the sealing element.
6 more elements
A packer assembly comprising:
- a packer mandrel;
- a sealing element disposed about the packer mandrel;
- a setting sleeve disposed about the packer mandrel and slidable thereon from a first position to a second position in which the sealing element is radially expanded to engage a casing in which the packer assembly is placed, the setting sleeve comprising a cylindrical portion and a sloped ramp extending longitudinally and radially inwardly therefrom;
- and
- a support shoe extending from an outer surface of the sealing element around an end of the sealing element and into a gap between the sealing element and the sloped ramp of the setting sleeve, the support shoe having a support shoe leg that extends into the gap between the sealing element and the sloped ramp of the setting sleeve, wherein the support shoe simultaneously slides on the setting sleeve and deploys as the sealing element is radially expanded.
2 more elements
Dependencies are inferred from the claim text.