Window assembly for multiple wellbore completions

Details Window assembly for multiple wellbore completions Window assembly for multiple wellbore completions

1998-04-02

1999-10-12

Suchfield, George

Wells

Means for guiding insertable element laterally of well axis

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

166 50, 1662421, 175 79, 175 80, E21B 708, E21B 2300, E21B 4314, E21B 4330

Patent

active

059642874

ABSTRACT:
A window assembly is provided for use at a downhole location in a first wellbore to control access to or allow isolation of a second wellbore extending from the first wellbore. The window assembly is included as an integral part of a production tubing string disposed within the first wellbore. A slot is formed in the window assembly. The window assembly is preferably installed at a downhole location aligned to an opening from the first wellbore into the second wellbore whereby well tools may move between the longitudinal bore of the window assembly and the second wellbore. Multiple guide surfaces are provided in the slot to direct movement of tools between the longitudinal bore and the window assembly and the second wellbore or vice versa. One of the guide surfaces on the slot preferably is formed with approximately the same angle at which the second wellbore intersects the first wellbore.

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