| 摘要 |
There is disclosed a well packer for use in closing off the annulus between a casing string in which the packer is connected and a well bore into which the casing string is lowered. The packer includes a mandrel connected as part of the casing string, a sleeve of elastomeric material surrounding an intermediate portion of the mandrel and adapted to be inflated into engagement with the well bore, and relatively short, substantially rigid but flexible, overlapping strips disposed about only upper and lower portions of the sleeve for expansion therewith into engagement with the well bore.
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