Invention Grant
US07766089B2 Packer system and method 有权
封隔器系统和方法

Packer system and method
Abstract:
Disclosed herein is a packer system. The packer system includes, a first packing element settable to create a seal against a downhole structure, and a contingency packing element in operable communication with the first packing element, maintainable in reserve and settable at a time after which the first packing element is set.
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