Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells
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United States of America Patent
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Jun 21, 1994
Issued Date -
N/A
app pub date -
Aug 7, 1992
filing date -
Aug 7, 1992
priority date (Note) -
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status (Latency Note)
Importance
Abstract
In accordance with the present invention, a plurality of methods are provided for solving important and serious problems posed by lateral (and especially multilateral) completion in a wellbore including methods for sealing the junction between a vertical and lateral well. Methods are disclosed for improved juncture sealing including novel techniques for establishing pressure tight seals between a liner in the lateral wellbore and a liner in the vertical wellbore. These methods generally relate to the installation of a liner to a location between the vertical and lateral wellbore such that the verticle wellbore is blocked. Thereafter, at least a portion of the liner is removed to reopen the blocked verticle wellbore.
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