| CPC E21B 33/12 (2013.01) [E21B 31/16 (2013.01); E21B 34/103 (2013.01); E21B 34/14 (2013.01)] | 20 Claims |
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10. 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.
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