Sand barrier for a level 3 multilateral wellbore junction

Details Sand barrier for a level 3 multilateral wellbore junction Sand barrier for a level 3 multilateral wellbore junction

E - Fixed Constructions

21

B

E21B 17/08 (2006.01) E21B 29/06 (2006.01) E21B 43/08 (2006.01)

Patent

CA 2369473

A relatively thin walled sleeve having a premachined window is disposed at a casing window in a wellbore. The sleeve is set in place with the casing or on a separate run wherein the running tool also includes a dog to align the sleeve premachined window with the casing window both linearly and rotationally in the wellbore. The sleeve is swedged in place in part or completely and a subsequent run provides a lateral liner which extends through both the premachined window and the casing window and seals against the premachined window which will then prevent sand entering the wellbore.

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