Bypassing a portion of a pipeline

A system for bypassing a rupture in a pipeline, the system comprising:

• a magnet configured to be placed outside the pipeline proximal the rupture, the magnet generating a magnetic field;
• and
• a bypass assembly configured to be positioned inside the pipeline to seal and bypass the rupture responsive to the magnetic field, the bypass assembly comprising:
• a hollow cylinder having a first end and a second end opposite the first end and an outer surface extending between the first end and the second end;
• an expansion tube disposed about a portion of the outer surface of the hollow cylinder, the expansion tube slidable relative to the hollow cylinder between a first position and a second position, the expansion tube having a first end and a second end opposite the first end and an outer surface extending between the first end and the second end;
• at least two expansion ring sub-assemblies coupled to the outer surface of the expansion tube, the at least two expansion ring sub-assemblies configured to expand from the outer surface of the expansion tube from a stored position to an extended position responsive to the expansion tube sliding between the first position and the second position;
• and
• a ferromagnetic tail extending from the second end of the hollow cylinder, the ferromagnetic tail configured to articulate to contact an inner surface of the pipeline responsive to the magnetic field of the magnet, wherein contact of the ferromagnetic tail to the inner surface of the pipeline directs a fluid flow to the expansion tube, moving the expansion tube from the first position to the second position and shifting the at least two expansion ring sub-assemblies to the extended position upstream and downstream of the rupture.