Wells – Processes – Placing or shifting well part
Patent
1993-12-30
1996-03-05
Dang, Hoang C.
Wells
Processes
Placing or shifting well part
166187, 277 346, E21B 33127
Patent
active
054958920
ABSTRACT:
An inflatable packer and a method for its use are provided for introduction into a subterranean well bore on a conduit. A fold can form in the inflatable elastomeric bladder of the packer during inflation or deflation, forming a seal on the central body or mandrel which obstructs the effective passage of fluid, thereby obstructing inflation and deflation of the bladder. The packer provides a fluid path to effectively communicate pressured fluid along the entire interior length of the bladder, thus effectively tolerating the fold and any otherwise fluid-obstructing seal.
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Article Entitled "New Inflation Testing Packer Improved Testing Capabilities"; Petroleum Society of CIM; Paper No. 79-30-08; pp. 1-8; Author: J. Brandell et al.
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Dang Hoang C.
Norvell, Jr. William C.
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