Wells – Packers or plugs – Cup type
Reexamination Certificate
2008-04-15
2008-04-15
Gay, Jennifer H (Department: 3676)
Wells
Packers or plugs
Cup type
C166S387000
Reexamination Certificate
active
11107116
ABSTRACT:
The present invention relates to a packer cup5having a deformable leading edge20which moves away from well bore or casing obstructions as the packer cup5is moved into a well bore. The anaxisymmetric deformable leading edge20can be formed by an angled leading edge19which presents only a portion of the leading edge18to a well bore obstruction and allows the edge19to move past the obstruction with little or no longitudinal force. Another embodiment provides an anaxisymmetric deformable leading interior edge72which is unduloid providing alternatively stiff and deformable sections74, 76of the edge72to move past the obstructions.
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Espinosa Frank F.
Garwood Michael
Oettli Mark
Cate David
Flynn Michael
Gay Jennifer H
Harcourt Brad
Nava Robin
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