Through-tubing plug

A method of plugging a wellbore, comprising:

• conveying a through-tubing plug into completion tubing extended within the wellbore, the through-tubing plug including:
• an outer mandrel defining a first uphole port and a first downhole port;
• an inner mandrel received within the outer mandrel and defining a second uphole port and a second downhole port;
• and
• a plug core provided on the outer mandrel and providing a landing profile;
• engaging an internal surface of the completion tubing with one or more sets of wipers secured to the outer mandrel and made of a foam material as the through-tubing plug traverses the completion tubing;
• sealingly engaging the landing profile against a landing receptor provided within completion tubing and thereby plugging the wellbore at the landing profile;
• moving the inner mandrel from an unactuated state, where the first and second uphole ports are misaligned and the first and second downhole ports are misaligned, to an actuated state, where the first and second uphole ports are aligned and the first and second downhole ports are aligned to thereby allow fluid flow through the through-tubing plug, wherein moving the inner mandrel from the unactuated state to the actuated state comprises:
• conveying a retrieving tool into the wellbore on a downhole conveyance;
• mating the retrieving tool with an inner profile defined in a fishing neck provided by the inner mandrel;
• providing a shifting force to the inner mandrel from the retrieving tool and thereby shearing one or more shearable devices that secure the inner mandrel against axial movement relative to the outer mandrel;
• and
• shifting the inner mandrel uphole relative to the outer mandrel until the first and second uphole ports align and the first and second downhole ports align;
• and
• removing the through-tubing plug from the landing receptor with the inner mandrel in the actuated state.

A through-tubing plug, comprising:

• an outer mandrel including a closed nose, a blind bore defined by an interior surface and the closed nose, a first uphole port, and a first downhole port, the first uphole and downhole ports each extending from an exterior surface of the outer mandrel to the interior surface;
• a plug core extending radially from the exterior surface of the outer mandrel and interposing the first uphole and downhole ports, the plug core defining a landing profile;
• and
• an inner mandrel received within the blind bore of the outer mandrel and defining a second uphole port and a second downhole port,
• wherein the inner mandrel is movable between an unactuated state, where the first and second uphole ports are misaligned and the first and second downhole ports are misaligned, and an actuated state, where the first and second uphole ports are aligned and the first and second downhole ports are aligned to thereby allow fluid flow through the through-tubing plug.