Method and apparatus for a downhole excavation in a wellbore

Details Method and apparatus for a downhole excavation in a wellbore Method and apparatus for a downhole excavation in a wellbore

2004-01-22

2009-08-18

Gay, Jennifer H (Department: 3676)

Wells

Means for guiding insertable element laterally of well axis

Secured in operative position by movable means engaging well...

C166S387000, C166S050000, C175S081000, C175S263000

Reexamination Certificate

active

07575050

ABSTRACT:
The method and apparatus can create excavation cavities suitable for drilling multilateral wellbores through the excavation using a kick-off. One embodiment of the method comprises isolating a wellbore at a determined location, excavating a downhole cavity in a wellbore above the determined location, and removing the apparatus for isolating the wellbore and the apparatus for excavating the downhole cavity from the wellbore to provide full access to the wellbore and the excavation cavity.

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PCT International Search Report dated Feb. 25, 2005, 4 pages.

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