Restriction tolerant packer cup
The present invention relates to a packer cup 5 having a deformable leading edge 20 which moves away from well bore or casing obstructions as the packer cup 5 is moved into a well bore. The anaxisymmetric deformable leading edge 20 can be formed by an angled leading edge 19 which presents only a por...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
15.04.2008
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to a packer cup 5 having a deformable leading edge 20 which moves away from well bore or casing obstructions as the packer cup 5 is moved into a well bore. The anaxisymmetric deformable leading edge 20 can be formed by an angled leading edge 19 which presents only a portion of the leading edge 18 to a well bore obstruction and allows the edge 19 to move past the obstruction with little or no longitudinal force. Another embodiment provides an anaxisymmetric deformable leading interior edge 72 which is unduloid providing alternatively stiff and deformable sections 74, 76 of the edge 72 to move past the obstructions. |
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Bibliography: | Application Number: US20050107116 |