Adapter and shaped charge apparatus for optimized perforation jet

Patent metadata

Field	Value
Publication number	US-12253339-B2
Application number	US-202217971708-A
Country	US
Kind code	B2
Filing date	Oct 24, 2022
Priority date	Oct 25, 2021
Publication date	Mar 18, 2025
Grant date	Mar 18, 2025

Abstract

An adapter for a shaped charge includes a plurality of members configured to be secured to an inner surface of a shaped charge case. Each member of the plurality of members is spaced apart from each other such that the adapter has a central open area. According to an aspect, a securing mechanism is configured to secure the member to an inner surface feature of the shaped charge case.

First claim

What is claimed is:

1. A shaped charge comprising:
a shaped charge case comprising an inner surface and an outer surface, wherein the inner surface defines a hollow interior of the shaped charge case;
an adapter coupled to the inner surface of the shaped charge case, the adapter comprising:
a collar; and
a plurality of members secured to the collar in a spaced apart configuration from each other such that the adapter has a central open area;

an explosive load disposed within the hollow interior atop the adapter, such that the explosive load covers the adapter and is in direct contact with a portion of the inner surface of the shaped charge case; and
a liner disposed adjacent the explosive load, wherein
at least a portion of the adapter displaces some of the explosive load, and
the displaced explosive load is configured to accelerate the liner to produce a perforating jet upon detonation of the shaped charge such that the adapter is configured to produce an atypical perforation hole geometry in a target.

2. The shaped charge of claim 1 , wherein the plurality of members comprises:
a first member; and
a second member,
wherein the first and second members are spaced 180 degrees from each other on the collar.

3. The shaped charge of claim 2 , wherein a width of each of the first member and the second member spans between approximately 20 degrees to 100 degrees of a circumference of the collar.

4. The shaped charge of claim 1 , wherein each of the plurality of members comprise a first end and a second end opposite and spaced apart from the first end, wherein the collar is secured to a substantially central portion of each of the members between the first and second ends.

5. The shaped charge of claim 4 , wherein, in each member of the plurality of members, a thickness of the first end is less than a thickness of the corresponding substantially central portion.

6. The adapter of claim 4 , wherein, in each member of the plurality of members, a thickness of the second end is less than a thickness of the corresponding substantially central portion.

7. The adapter of claim 4 , wherein, in each member of the plurality of members, a thickness of the substantially central portion is greater than a thickness of the first end and greater than a thickness of the second end.

8. The shaped charge of claim 1 , wherein a surface profile of each of the plurality of members is contoured to conform to a contour of the inner surface of the shaped charge case.

9. The shaped charge of claim 1 , wherein the adapter is formed from a plastic material.

Assignees

• DynaEnergetics Europe GmbH

Inventors

• Loehken Joern Olaf

Classifications

• F42B1/02

  Shaped or hollow charges (blasting cartridges with cavities in the charge F42B3/08; oil winning using shaped-charge perforators E21B43/116) · CPC title

• F42B1/028 Primary

  characterised by the form of the liner · CPC title

• E21B43/117

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

• F42B1/036

  Manufacturing processes therefor {(F42B33/0214 - F42B33/0292 take precedence)} · CPC title

• F42B1/024 Primary

  provided with embedded bodies of inert material · CPC title