Cluster gun system

Patent metadata

Field	Value
Publication number	US-12228018-B2
Application number	US-202017757064-A
Country	US
Kind code	B2
Filing date	Dec 11, 2020
Priority date	Dec 10, 2019
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

A method and apparatus for containing one or more shaped charges in a single plane, arrayed about the center axis of a gun body, and detonated from a single initiator in a shaped charge cluster assembly, having one or more detonator circuits located within a recess within the shaped charge cluster assembly electrically coupled to the single initiator located at the center of the arrayed shaped charges.

First claim

What is claimed is:

1. A perforating gun comprising:
an outer gun body;
a first cluster charge holder;
a plurality of shaped charges having an open end and an apex end;
an initiating device;
wherein the first cluster charge holder comprises:
a top end, a bottom end, a housing axis extending from the center of the top and an outer surface substantially parallel to the housing axis;
a central bore extending from the top end of the first cluster charge holder along the housing axis;
a plurality of charge cavities in the charge housing arranged radially about the housing axis, each of the charge cavities extending from a shaped charge aperture in the outer surface toward an apex end proximate the central bore;
a plurality of priming holes in the charge housing connecting the central bore to the plurality of charge cavity apex ends;
a detonator circuit recessed into the first cluster charge holder, wherein the detonator circuit is electrically coupled to the initiating device; and
wherein the initiating device is inside the central bore of the first cluster charge holder and the plurality of shaped charges are inside the plurality of charge cavities; and

wherein the explosive output of the initiating device detonates the shaped charges.

2. The perforating gun of claim 1 further comprising:
a second cluster charge holder;
a plurality of shaped charges having an open end and an apex end;
a detonation transfer device;
wherein the second cluster charge holder comprises:
a top end, a bottom end, a housing axis extending from the center of the top and

an outer surface substantially parallel to the housing axis;
a central bore extending from the top end of the charge housing along the housing axis;
a plurality of charge cavities in the charge housing arranged radially about the housing axis, each of the charge cavities extending from a shaped charge aperture in the outer surface toward an apex end proximate the central bore;
a plurality of priming holes in the charge housing connecting the central bore to the plurality of charge cavity apex ends;
wherein the detonation transfer device is inside the central bore of the second cluster charge holder and the plurality of shaped charges are inside the plurality of charge cavities of the first and second cluster charge holders;
wherein an explosive output of the initiating device detonates the shaped charges in the first cluster charge holder and the detonation transfer device; and
wherein an explosive output of the detonation transfer device detonates the shaped charges in the second cluster charge holder.

3. The perforating gun of claim 2 wherein the detonation transfer device further comprises a booster.

4. The perforating gun of claim 2 wherein the detonation transfer device further comprises detonating cord.

5. The perforating gun of claim 1 wherein the detonator circuit further comprises an addressable switch.

6. The perforating gun of claim 1 wherein the initiating device further comprises a detonator.

7. The perforating gun of claim 1 wherein the initiating device further comprises a percussion initiator.

Assignees

• Hunting Titan Inc

Inventors

• Bradley Ryan
• Bradley Richard
• Craig Charles
• Blain Rick
• Sokolove Christopher
• Dyess Adam
• Collins William
• Wilson Shane
• Langford Dale
• Mai Jason

Classifications

• E21B43/119

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

• E21B43/1185

  Ignition systems · CPC title

• E21B43/117 Primary

  Shaped-charge perforators (E21B43/118 takes precedence) · CPC title