The present disclosure relates to a detonation connector having an exposure part for tagging, the detonation connector includes: an electrically conductive wire-connecting bracket member having a plurality of electric wire mounting grooves to which a leg line or a leading line is mounted; a lower casing member at which the wire-connecting bracket member is positioned; and an upper casing member covering the lower casing member, wherein the upper casing member or the lower casing member is provided with a tagging exposure part that exposes a part of the wire-connecting bracket member wire-connecting the leg line and the leading line, so that the tagging work of charging initialization time to a detonator can be performed without opening the upper casing member, and the convenience and the efficiency of the tagging work can be improved.

A power charge and method for actuating a wellbore tool with a power charge. The power charge may include a first volume containing a first energetic material and a second volume containing a second energetic material positioned within the first energetic material. The second energetic material may be a faster burning material compared to the first energetic material. The wellbore tool may include a power charge cavity, an initiator positioned in an initiator holder adjacent to the power charge within the power charge cavity, and a gas diverter channel for directing to an expansion chamber gas pressure generated by combustion of the power charge, to actuate the wellbore tool. The method may include inserting the initiator into the intiator holder within the power charge cavity and initiating combustion of the first energetic material and the second energetic material.

A pyrotechnic projectile, an electronic controller for a pyrotechnic projectile, and a method of controlling a pyrotechnic projectile are provided. The pyrotechnic projectile comprises: a burst charge, configured to provide an a visual and/or audible effect upon activation thereof; an electronic match configured to activate the burst charge; and an electronic controller, coupled to the electronic match. The electronic controller is configured to determine an altitude of the pyrotechnic projectile and cause the electronic match to activate the burst charge at least in part according to the altitude of the pyrotechnic projectile.

A pyrotechnic projectile, an electronic controller for a pyrotechnic projectile, and a method of controlling a pyrotechnic projectile are provided. The pyrotechnic projectile comprises: a burst charge, configured to provide an a visual and/or audible effect upon activation thereof; an electronic match configured to activate the burst charge; and an electronic controller, coupled to the electronic match. The electronic controller is configured to determine an altitude of the pyrotechnic projectile and cause the electronic match to activate the burst charge at least in part according to the altitude of the pyrotechnic projectile.

A wireline release tool for downhole intervention, the tool including a housing having an electrical input and an electrical output; a pass-through switch located inside the housing and electrically connected between the electrical input and the electrical output; and a circuit limiter device located inside the housing and electrically connected between the electrical input and the electrical output. The pass-through switch is connected in parallel to the circuit limiter device, between the electrical input and the electrical output.

The present disclosure relates to an electronic detonation device for a blasting system. The electronic detonation device include: an electronic detonator; a wireless communication module; an electric wire connecting the electronic detonator to the wireless communication module; and a communication module support in which the electric wire is stored in a wound state, with the wireless communication module positioned on an upper surface of the communication module support. The communication module support is provided with a pile part configured to be driven into a ground for fixation, so that the electronic detonation device enables stable communication reliability to be secured by orienting the wireless communication module toward the sky, thereby preventing malfunction during blasting and improving blasting accuracy.

A gun tube for a downhole perforating gun assembly includes a body having a cavity and one or more weights in the cavity. Gravity acts on the weights, which causes the tube body to rotate around its longitudinal axis so the weights are adjacent the lower part of the wellbore in which the gun assembly is positioned when oriented horizontally. This position shape charges in the gun tube in a desired position prior to the shape charges being fired. The gun tube may also include one or more end connectors with electrical contacts having a first, extended position, and a second, contracted position, and/or end connectors that can be assembled by hand without the use of tools.

The present invention provides an explosive method that improves on methods currently employed. The present invention provides for a safer, less expensive, and more portable explosive device. The elements of the present invention replace dynamite or similar explosives currently used in avalanche control and bore hole blasting of rock or other solids. The present invention comprises an apparatus and a method providing a much safer alternative employing a highly confined combustion reaction of a flammable vapor, whereas dynamite is a category 1.1 high explosive imbued with all the attendant safety and security concerns. The method of the present invention provides for an improved and safer method of blasting employing a highly confined combustion reaction of a flammable vapor instead of conventional explosives currently used.

The present invention provides an explosive method that improves on methods currently employed. The present invention provides for a safer, less expensive, and more portable explosive device. The elements of the present invention replace dynamite or similar explosives currently used in avalanche control and bore hole blasting of rock or other solids. The present invention comprises an apparatus and a method providing a much safer alternative employing a highly confined combustion reaction of a flammable vapor, whereas dynamite is a category 1.1 high explosive imbued with all the attendant safety and security concerns. The method of the present invention provides for an improved and safer method of blasting employing a highly confined combustion reaction of a flammable vapor instead of conventional explosives currently used.

The present disclosure relates to a blasting system. The blasting system includes: detonators disposed in blasting holes perforated in a blasting target, and provided to detonate explosives; and a worker terminal configured to be connected to any one of the detonators by a worker. Wherein the worker terminal includes: a storage part configured to store a blasting map; a terminal position generation part configured to generate a terminal position indicating a position of the worker terminal; and a determination part configured to receive the logging signal, and match the terminal position at the time when the worker terminal receives the logging signal with the blasting map to identify a detonator connected to the worker terminal.