Method and system for lining multilateral wells

Details Method and system for lining multilateral wells Method and system for lining multilateral wells

E - Fixed Constructions

21

B

E21B 7/06 (2006.01) E21B 41/00 (2006.01) E21B 43/08 (2006.01) E21B 43/10 (2006.01) E21B 43/14 (2006.01)

Patent

CA 2458838

In accordance with one embodiment of the present invention, a method for lining a lateral wellbore includes drilling a main wellbore extending from a surface to a subterranean zone, casing the main wellbore with a main casing having a plurality of lateral wellbore windows formed therein, positioning a whipstock having a longitudinal bore running therethrough adjacent a respective one of the lateral wellbore windows, forming a lateral wellbore through the respective lateral wellbore window using the whipstock, lining the first lateral wellbore with a lateral liner and a portion of a tie-back assembly that has a pre-milled lateral wellbore window formed therein, aligning the pre-milled lateral wellbore window with the longitudinal bore, and coupling the tie-back assembly to the main casing.

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