Detonator assemblies for perforating gun systems

Patent metadata

Field	Value
Publication number	US-2025059859-A1
Application number	US-202418933803-A
Country	US
Kind code	A1
Filing date	Oct 31, 2024
Priority date	Jul 15, 2020
Publication date	Feb 20, 2025
Grant date	—

Abstract

A perforating gun system includes a cylindrical outer housing, a charge carrier assembly receivable in the outer housing, wherein the charge carrier assembly includes a charge carrier defining an interior configured to at least partially receive one or more shaped charges, a first endplate coupled to a first end of the charge carrier, and a second endplate coupled to a second end of the charge carrier, and wherein the first endplate defines a switch receptacle for at least partially receiving an electrical switch and a detonator receptacle for receiving a detonator such that the detonator is configured to detonate the one or more shaped charges in response to receiving a firing signal from the electrical switch.

First claim

What is claimed is:

1 . A perforating gun system, comprising:
a cylindrical outer housing; and a charge carrier assembly receivable in the outer housing, wherein the charge carrier assembly comprises a charge carrier defining an interior configured to at least partially receive one or more shaped charges, a first endplate coupled to a first end of the charge carrier, and a second endplate coupled to a second end of the charge carrier; wherein the first endplate defines a switch receptacle for at least partially receiving an electrical switch and a detonator receptacle for receiving a detonator such that the detonator is configured to detonate the one or more shaped charges in response to receiving a firing signal from the electrical switch.

2 . The perforating gun system of claim 1 , wherein the first endplate defines a central passage, and the charge carrier assembly comprises an electrical connector that is at least partially received in the central passage of the first endplate.

3 . The perforating gun system of claim 2 , wherein the switch receptacle of the first endplate extends at least partially circumferentially around the central passage of the first endplate.

4 . The perforating gun system of claim 2 , wherein the detonator receptacle extends longitudinally parallel but radially offset from the central passage of the first endplate.

5 . The perforating gun system of claim 1 , wherein the detonator receptacle extends at least partially into the interior of the charge carrier.

6 . The perforating gun system of claim 1 , wherein the detonator receptacle extends longitudinally from the switch receptacle.

7 . The perforating gun system of claim 1 , wherein the detonator is configured to electrically connect to the electrical switch when the electrical switch is received in the switch receptacle and the detonator is received in the detonator receptacle.

8 . A perforating gun system, comprising:
a cylindrical outer housing; and a charge carrier assembly receivable in the outer housing, wherein the charge carrier assembly comprises a charge carrier defining an interior configured to at least partially receive one or more shaped charges, a first endplate coupled to a first end of the charge carrier, and a second endplate coupled to a second end of the charge carrier; wherein the first endplate defines a switch receptacle for at least partially receiving an electrical switch and a detonator holder comprising a passage configured to receive a detonator whereby the detonator is at least partially received in the interior of the charge carrier and is configured to detonate the one or more shaped charges in response to receiving a firing signal from the electrical switch.

9 . The perforating gun system of claim 8 , wherein the first endplate comprises an annular member at least partially defining the switch receptacle.

10 . The perforating gun system of claim 9 , wherein the detonator holder extends longitudinally from the annular member of the first endplate.

11 . The perforating gun system of claim 9 , wherein the annular member extends partially but not entirely circumferentially around a central axis of the charge carrier assembly.

12 . The perforating gun system of claim 9 , wherein the annular member of the first endplate defines an externally accessible central passage.

13 . The perforating gun system of claim 12 , wherein the charge carrier assembly further comprises an electrical connector at least partially received in the central passage and configured to electrically connect to the electrical switch when the electrical switch is received in the switch receptacle.

14 . The perforating gun system of claim 8 , wherein the detonator holder extends at least partially into the interior of the charge carrier.

15 . A perforating gun system, comprising:
a cylindrical outer housing; and a charge carrier assembly receivable in the outer housing, wherein the charge carrier assembly comprises a charge carrier defining an interior configured to at least partially receive one or more shaped charges, a first endplate coupled to a first end of the charge carrier, and a second endplate coupled to a second end of the charge carrier; wherein the first endplate defines an initiator receptacle for receiving an initiator assembly comprising an electrical switch and a detonator configured to detonate the one or more shaped charges in response to receiving a firing signal from the electrical switch of the initiator assembly.

16 . The perforating gun system of claim 15 , wherein the initiator receptacle extends at least partially into the interior of the charge carrier.

17 . The perforating gun system of claim 15 , wherein the first endplate comprises an annular member at least partially defining the initiator receptacle.

18 . The perforating gun system of claim 17 , wherein the initiator receptacle extends along a central axis of the charge carrier assembly across the annular member of the first endplate.

19 . The perforating gun system of claim 15 , wherein the first endplate defines a central passage, and the charge carrier assembly comprises an electrical connector that is at least partially received in the central passage of the first endplate.

20 . The perforating gun system of claim 19 , wherein the initiator receptacle of the first endplate extends at least partially circumferentially around the central passage of the first endplate.

Assignees

• G&H Diversified Mfg Lp

Inventors

• Wells Joe Noel
• Moniet Eduardo
• Knight Benjamin Vascal

Classifications

• E21B47/04

  Measuring depth or liquid level · CPC title

• E21B43/119

  Details, e.g. for locating perforating place or direction · CPC title

• E21B43/261

  Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking the formation · CPC title

• E21B43/1185 Primary

  Ignition systems · CPC title