Method and apparatus for sealing the juncture between a verticle

Wells – Processes – Parallel string or multiple completion well

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166384, 166 50, E21B 3310

Patent

active

053538765

ABSTRACT:
In accordance with the present invention, a plurality of methods and devices are provided for solving important and serious problems posed by lateral (and especially multilateral) completion in a wellbore including methods and devices for sealing the junction between a vertical and lateral well. Several methods are disclosed which utilize a novel guide or mandrel which includes side pockets for directing liners into a lateral wellbore. Other methods include the use of extendable tubing and deflector devices which aid in the sealing process.

REFERENCES:
patent: 2797893 (1957-07-01), McCune et al.
patent: 4415205 (1983-11-01), Rehm 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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