Surface controlled subsurface lateral branch safety valve

Details Surface controlled subsurface lateral branch safety valve Surface controlled subsurface lateral branch safety valve

2008-03-04

2008-03-04

Dang, Hoang (Department: 3672)

Wells

Processes

Parallel string or multiple completion well

C166S050000, C166S117600

Reexamination Certificate

active

11170256

ABSTRACT:
A surface controlled subsurface lateral branch safety valve provides flow control for each branch wellbore in a multilateral well. In a described embodiment, a completion system for a well having an intersection between parent and branch wellbores includes an apparatus having multiple passages formed therethrough. One passage provides fluid communication between opposite ends of the apparatus in the parent wellbore, and another passage provides guidance for drilling the branch wellbore. The apparatus further includes a flow control device, such as a surface controlled subsurface safety valve, which selectively controls fluid communication with the branch wellbore.

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