Mar 24, 2026

US12584721 - Detonator for a perforating gun assembly

A detonator for a perforating gun. The detonator is used to ignite a detonator cord in a charge tube for a perforating gun assembly, which in turn is used for perforating a wellbore. The detonator includes a cartridge. The cartridge comprises a tubular body having a first end; and a second end. Preferably, the tubular body is fabricated from a metallic material. The detonator also comprises a post proximate the first end of the tubular body. The post is configured to be in electrical communication with a first leg wire connected to an addressable switch. Alternatively, the post is in contact with the end of a detonation pin. The detonator also has a fuse head within the bore of the tubular body, and a fuse wire. The fuse head is in contact with the explosive charge material. The detonator is releasably snapped into a compartment located within the charge tube.

Assignee: XConnect, LLC
Inventors: Shelby L. Sullivan
Filing date: 2025-02-14

detonatorperforatinggunexplosive

The patent describes a detonator designed for use in a perforating gun assembly, featuring a tubular body that houses a fuse head and is equipped with electrical communication components for detonation. It includes an end plate with openings for signal and detonator pins, facilitating the transmission of electrical signals to ignite the explosive charge within the wellbore.

Claim 1

1 . An end plate comprising: a first end defining a first face, with the first face abutting a charge tube of a perforating gun; a second end opposite the first end, and defining a second face; an opening along the second face configured to receive an end of a ground pin; a first through-opening and a second through-opening; a first bulkhead residing in the first through-opening configured to closely receive a signal transmission pin, wherein the signal transmission pin is configured to transmit electrical signals from the perforating gun, through the end plate, and to an addressable switch; a second bulkhead residing in the second through-opening configured to closely receive a detonator pin, wherein the detonator pin is configured to transmit a detonation signal from the addressable switch, back up through the end plate, and to a detonator; and wherein: the addressable switch comprises a first leg wire and a second leg wire; and the detonator is received within a compartment of the charge tube within the perforating gun. a first end defining a first face, with the first face abutting a charge tube of a perforating gun; a second end opposite the first end, and defining a second face; an opening along the second face configured to receive an end of a ground pin; a first through-opening and a second through-opening; a first bulkhead residing in the first through-opening configured to closely receive a signal transmission pin, wherein the signal transmission pin is configured to transmit electrical signals from the perforating gun, through the end plate, and to an addressable switch; a second bulkhead residing in the second through-opening configured to closely receive a detonator pin, wherein the detonator pin is configured to transmit a detonation signal from the addressable switch, back up through the end plate, and to a detonator; and wherein: the addressable switch comprises a first leg wire and a second leg wire; and the detonator is received within a compartment of the charge tube within the perforating gun.

Google Patents

https://patents.google.com/patent/US12584721

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12584721