Packer assembly including an interlock feature
AssigneeBaker Hughes Oilfield Operations LLC
InventorsGuijun Deng, Alexander Kendall, YingQing Xu
Life of this patent
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Abstract
A packer assembly includes a tubular having a surface, a gauge ring provided on the surface, a back-up ring positioned adjacent the gauge ring, a packer element arranged adjacent to the back-up ring, an expansion ring arranged adjacent to the gauge ring, the expansion ring including a step portion, and a support ring arranged axially between the back-up ring and the expansion ring. The support ring includes a step feature. The step portion and the step feature are selectively engaged with expansion of the packer element to form an interlock feature that substantially limits rocking of the expansion ring.
Claims12
A packer assembly comprising:
- a tubular having a surface;
- a gauge ring provided on the surface;
- a back-up ring spaced from the gauge ring;
- a packer element arranged adjacent to the back-up ring;
- an expansion ring arranged adjacent to the gauge ring, the expansion ring including a radially outwardly facing surface, a radially inwardly facing surface, a first axially facing surface, a second axially facing surface, and a step portion;
- and
- a support ring arranged axially between the back-up ring and the expansion ring, the support ring including a step feature, the step portion and the step feature being selectively engaged with expansion of the packer element to form an interlock feature that substantially limits rocking of the expansion ring and maintains a selected gap between the radial outward facing surface and a casing positioned outwardly of the tubular.
A resource exploration and recovery system comprising:
- a surface system;
- and
- a downhole system including a string of tubulars, at least one of the string of tubulars including a surface supporting a packer assembly comprising:
- a gauge ring provided on the surface;
- a back-up ring spaced from the gauge ring;
- a packer element arranged adjacent to the back-up ring;
- an expansion ring arranged adjacent to the gauge ring, the expansion ring including a radially outwardly facing surface, a radially inwardly facing surface, a first axially facing surface, a second axially facing surface, and a step portion;
- and
- a support ring arranged axially between the back-up ring and the expansion ring, the support ring including a step feature, the step portion and the step feature being selectively engaged with expansion of the packer element to form an interlock feature that substantially limits rocking of the expansion ring and maintains a selected gap between the radial outward facing surface and a casing positioned outwardly of the tubular.
Dependencies are inferred from the claim text.