Abstract: Safe addressable firing controls positioned within a reusable housing that only allows voltage and current from the shooting panel to reach the explosive device by addressing the switch to open allowing electricity to pass through it and setting off the chain reaction during detonation, wherein the safe addressable firing controls positioned within a cartridge that creates a safety barrier between the surface equipment and a downhole tool, such as an explosive device.
Abstract: A lubricator vent sub is placed at a lowest point in a greasehead with maximum volume to relieve trapped air, wherein the lubricator vent sub creates a secondary flow path for the trapped air.
Abstract: A tool that allows viscous fluid to be injected into a flow tube to form a fluid seal around the wireline, and allow the fluid to be removed from the tool below a packoff in order to isolate well pressure from packoff rubbers.