Dual bore co-mingler with multiple position inner sleeve

A system for controlling fluid flow in multilateral wellbore completions, the system comprising:

• a flow control sub having a first bore in a first section in fluid communication with a second and third bore in a second section;
• a primary wellbore tubular in fluid communication with one of the second and third bores;
• a secondary wellbore tubular in fluid communication with the other of the second and third bores;
• a sleeve having a through bore disposed in the flow control sub, the sleeve having a first and second retractable lug;
• and
• a guiding channel having at least three interconnected endpoints, the channel disposed in an inner wall of the flow control sub;
• wherein the first and second retractable lugs are disposed in the guiding channel.

A method for controlling flow in multilateral well completions, the method comprising:

• positioning a flow control sub in a multilateral well where a first bore of the flow control sub is in fluid communication with a primary wellbore and second bore is in fluid communication with a secondary wellbore;
• applying a force to a sleeve having a through bore and disposed in the flow control sub in a first position;
• moving protrusions disposed on the sleeve along channels disposed in an inner wall of the flow control sub;
• moving the sleeve from the first position to a second position in the flow control sub;
• placing the sleeve in fluid communication with at least one of the first and second bores of the flow control sub;
• and
• providing at least one seal between the sleeve and the flow control sub.