US 7,337,846 B2
Surface controlled subsurface lateral branch safety valve
Henry L. Restarick, Carrollton, Tex. (US); and Jody R. McGlothen, Waxahachie, Tex. (US)
Assigned to Halliburton Energy Services, Inc., Carrollton, Tex. (US)
Filed on Jun. 29, 2005, as Appl. No. 11/170,256.
Application 11/170256 is a division of application No. 10/253671, filed on Sep. 24, 2002, granted, now 6,951,252.
Prior Publication US 2006/0000614 A1, Jan. 05, 2006
Int. Cl. E21B 43/14 (2006.01)
U.S. Cl. 166—313  [166/50; 166/117.6] 5 Claims
OG exemplary drawing
 
1. A completion system for a well having an intersection between first and second wellbores, the system comprising:
multiple apparatuses, each apparatus having first and second passages formed therethrough, the first passage providing fluid communication between opposite ends of the apparatus in the first wellbore, and the second passage providing guidance for drilling the second wellbore extending laterally from the first wellbore, each apparatus further including a flow control device selectively controlling fluid communication with the second passage, fluid being produced from the second wellbore via a first one of the apparatuses, while a third wellbore is drilled via a second one of the apparatuses.