Systems and Methods for Secondary Sealing of a Perforation within a Wellbore Casing

A method of completing a hydrocarbon well that includes a wellbore that extends between a surface region and a subterranean formation and a wellbore casing that defines a casing conduit, the method comprising:

• conveying a completion assembly to a target region of the casing conduit, wherein the completion assembly includes a perforation device and a sealing apparatus;
• pressurizing the casing conduit relative to the wellbore with a fluid;
• perforating the target region with the perforation device to create a perforation that releases the fluid from the casing conduit into the wellbore to stimulate a portion of the subterranean formation;
• providing a primary sealing agent to the perforation to decrease a flow rate of the fluid from the casing conduit through the perforation;
• and
• releasing a charge of sealing material from the sealing apparatus to supplement the primary sealing agent and further decrease the flow rate of the fluid through the perforation, wherein the charge of sealing material includes a secondary sealing agent.

A sealing apparatus configured to provide a secondary sealing agent to a perforation that is present within a wellbore casing that defines a casing conduit, the sealing apparatus comprising:

• a charge of sealing material that includes the secondary sealing agent;
• a delivery structure that retains the charge of sealing material during conveyance of the sealing apparatus from a surface region and along the casing conduit to within a threshold distance of the perforation;
• and
• a release mechanism that selectively releases the charge of sealing material from the sealing apparatus into the casing conduit to supplement a seal between the wellbore casing and a primary sealing agent and decrease a flow rate of a fluid from the casing conduit through the perforation.