Method and apparatus for sealing the juncture between a vertical

Details Method and apparatus for sealing the juncture between a vertical Method and apparatus for sealing the juncture between a vertical

1992-08-07

1994-06-21

Neuder, William P.

Wells

Processes

Parallel string or multiple completion well

166 50, 1661176, E21B 2306

Patent

active

053221273

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.

REFERENCES:
patent: 2797893 (1953-07-01), McCune et al.
patent: 4415205 (1983-11-01), Rehn et al.
patent: 4436165 (1984-03-01), Emery
patent: 4807704 (1989-02-01), Hsu et al.
patent: 5113938 (1992-05-01), Clayton
patent: 5115872 (1992-05-01), Brunet et al.
"Arco drill horizontal drainhole"; Moore, III; Sep. 1980.

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