Abstract: Perforation devices including gas supply structures and methods of utilizing the same. The perforation devices include a magazine, a barrel, an action, and the gas supply structure. The magazine is configured to contain a plurality of cartridges. The barrel extends between a breech, which is configured to receive a selected cartridge of the plurality of cartridges that includes a selected projectile, and a muzzle, which is configured, upon firing of the selected cartridge, to permit the selected projectile to exit the barrel at a muzzle velocity and with a muzzle trajectory. The action is configured to transfer the selected cartridge from the magazine to the breech of the barrel and to fire the selected cartridge. The gas supply structure is configured to provide a gas stream to the barrel and includes a surface gas source and a gas supply conduit extending between the surface gas source and the barrel.

Abstract: One example apparatus includes a shaped charge, and an overmold that includes one or more layers surrounding a portion of the shaped charge. The overmold may contact, and conform to, a case within which the shaped charge is received, and the overmold may further contact, and conform to, a cartridge wall within which the shaped charge and the overmold are positioned. An electrical or electronic component may be partly embedded in the overmold.

Abstract: In one example, a method includes running a downhole system, that includes a reusable plug and a perforation system, into a wellbore, positioning, and setting in the wellbore, the reusable plug at a stage of the wellbore such that the reusable plug is located uphole of the perforation system, with the perforation system, perforating a casing at the stage of the wellbore, unsetting the reusable plug, and flushing proppant around and past the reusable plug.

Abstract: An example apparatus includes a rod, an uphole coupling through which the rod extends. An expansion ring is positioned on the rod below the uphole coupling, and an elastomer element is positioned on the rod below the expansion ring. A receptacle is positioned on the rod below the elastomer element and is configured to receive a portion of the elastomer element. A guardian ring is positioned on the rod below the receptacle, and a portion of the receptacle is received in the guardian ring. A cap is positioned on the rod and arranged for contact with the guardian ring, and a barrel to which the cap is connected. The rod is partially received in the barrel, and one of the barrel and the rod is movable with respect to the other of the barrel and the rod to exert a compression load on the elastomer element.