Slide-in frame for shaped charges

Patent metadata

Field	Value
Publication number	US-12104470-B2
Application number	US-202318490453-A
Country	US
Kind code	B2
Filing date	Oct 19, 2023
Priority date	Apr 15, 2021
Publication date	Oct 1, 2024
Grant date	Oct 1, 2024

Abstract

A frame for a shaped charge has a body with a cylindrical configuration, the body having a central passage along an axis thereof and a track extending in a direction parallel to the axis for installing and removing a shaped charge, the track having a snap structure. The frame provides a slide-in snap-in charge receptacle for a shaped charge.

First claim

We claim:

1. A frame for a shaped charge, the frame comprising:
a body having a central passage along an axis thereof and a track, formed in a side of the body and extending in a direction parallel to the axis, for installing and removing a shaped charge, the track comprising:
a first end and a second end opposite from the first end in a direction parallel to the axis, the first end being open and configured to receive the shaped charge, and the second end being closed; and
a snap structure formed along an interior wall of the track, the snap structure configured to secure the shaped charge in the track.

2. The frame of claim 1 , comprising a self-orienting feature.

3. The frame of claim 2 , wherein the self-orienting feature comprises a weight body.

4. The frame of claim 1 , wherein the body comprises an electrical conductor disposed within the central passage.

5. The frame of claim 4 , wherein the body is configured to rotate relative to the electrical conductor.

6. The frame of claim 1 , wherein the body comprises one or more additional tracks for one or more additional shaped charges, formed in respective additional sides of the body and extending in the direction parallel to the axis.

7. The frame of claim 6 , wherein the one or more additional tracks comprises:
a first respective end and a second respective end opposite from the first respective end in the direction parallel to the axis, the first respective end being open and configured to receive a respective shaped charge of the one or more additional shaped charges, and the second end being closed; and
a respective additional snap structure.

8. A perforation tool, comprising:
a charge module with a slide-in charge frame that has a snap structure, the slide-in charge frame comprising:
a body comprising:
a central passage along an axis of the body; and
a track, formed in a side of the body and extending in a direction parallel to the axis, for installing and removing a shaped charge, the track comprising:
a first end and a second end opposite from the first end in the direction parallel to the axis, the first end being open and configured to receive the shaped charge, and the second end being closed; and
the snap structure.

9. The frame of claim 8 , wherein the body comprises an electrical conductor disposed within the central passage.

10. The frame of claim 9 , wherein the body is configured to rotate relative to the electrical conductor.

11. The perforation tool of claim 8 , wherein a flex groove is formed in the body to allow one or more walls of the track to flex.

12. The perforation tool of claim 11 , wherein the flex groove is parallel to a central axis of the track.

13. The perforation tool of claim 11 , wherein the snap structure is configured to engage with a groove of the shaped charge.

14. The perforation tool of claim 8 , wherein the body comprises one or more additional tracks for one or more additional shaped charges, formed in respective additional sides of the body and extending in the direction parallel to the axis.

15. The perforation tool of claim 14 , wherein the one or more additional tracks comprises:
a first respective end and a second respective end opposite from the first respective end in the direction parallel to the axis, the first respective end being open and configured to receive a respective shaped charge of the one or more additional shaped charges, and the second respective end being closed; and
a respective additional snap structure.

16. The perforation tool of claim 8 , wherein the body comprises a ballistic discharge device disposed within the central passage.

17. A perforation tool, comprising:
a charge module with a slide-in charge frame that has respective snap structures for a plurality of respective shaped charges, the slide-in charge frame comprising:
a body comprising:
a central passage along an axis of the body; and
respective tracks for the plurality of respective shaped charges, formed in respective sides of the body and extending in a direction parallel to the axis, for installing and removing the plurality of respective shaped charges, each track of the respective tracks comprising:
a first end and a second end opposite from the first end in the direction parallel to the axis, the first end being open and configured to receive a respective shaped charge of the plurality of respective shaped charges, and the second end being closed; and
a respective snap structure of the respective snap structures.

18. The perforation tool of claim 17 , wherein the body comprises one or more orienting features proximate to the first end of the track, or one or more additional orienting features proximate to the second end of the track, or both.

19. The perforation tool of claim 17 , wherein the body comprises one or more cutouts that are configured to allow one or more walls of the track to flex.

20. The perforation tool of claim 17 , wherein the respective snap structure comprises a protrusion that extends inward from an interior wall of the track that increases from the first end of the track to a maximum distance at a snap point.

Assignees

• Schlumberger Technology Corp

Inventors

• Lowe Erick
• Lee Alexander

Classifications

• E21B43/119

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

• 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

• E21B43/117 Primary

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