초록 ▼

Apparatus and method for activating a device in a well, such as firing a perforating gun in a well. An electrically-activated firing system is coupled to an actuating assembly, which includes a release piston movable by fluid pressure, a firing pin, and a frangible element connected to hold the rele

Apparatus and method for activating a device in a well, such as firing a perforating gun in a well. An electrically-activated firing system is coupled to an actuating assembly, which includes a release piston movable by fluid pressure, a firing pin, and a frangible element connected to hold the release piston in place, the frangible element being shattered in response to electrical activation of the firing system. A locking mechanism locks the firing pin to prevent movement of the firing pin, and the release piston is connected to release the locking mechanism if a minimum amount of fluid pressure is applied to the release piston after electrical activation of the firing system. A detonating assembly is connected to the perforating gun and is activable by the firing pin. The detonating assembly is activated when the firing pin is released by the locking mechanism to impact the detonating assembly.

대표청구항 ▼

[ What is claimed is:] [22.] A method of firing a perforating gun in a well, comprising:connecting a perforating apparatus to the perforating gun, the perforating apparatus including an electrically-activated firing module, an actuating assembly coupled to the firing module, and a detonating assembl

[ What is claimed is:] [22.] A method of firing a perforating gun in a well, comprising:connecting a perforating apparatus to the perforating gun, the perforating apparatus including an electrically-activated firing module, an actuating assembly coupled to the firing module, and a detonating assembly, wherein the actuating assembly includes a release piston movable by fluid pressure and a locking assembly connected to hold the release piston in position;lowering the firing apparatus and perforating gun into the well; andelectrically activating the firing module, wherein the locking assembly is configured to respond to the electrical activation by releasing the release piston, and wherein the detonating assembly is activated to fire the perforating gun in response to movement of the release piston.