May 27, 2025

US12312924 - Shaped charge load tube with integrated detonation cord retention mechanism

A loading tube is configured to receive one or more shaped charges to form a perforating gun. The loading tube includes a tubular body extending along a longitudinal axis; a cord passage formed into the tubular body; a retention cutoff formed into the tubular body and configured to receive a detonator cord; and a holding element extending into the retention cutoff and being integrally made with a wall of the tubular body, wherein the holding element is configured to hold the detonator cord into the retention cutoff. The cord passage is configured to receive the detonator cord from a bore of the tubular body and to direct the detonator cord outside the bore of the tubular body.

Assignee: GEODYNAMICS, INC.
Inventors: Wenbo Yang, James A. Rollins
Filing date: 2023-10-16

The patent describes a loading tube designed for use in a perforating gun, featuring an integrated mechanism to retain a detonator cord while accommodating multiple shaped charges. This design enhances the functionality and safety of the perforating gun by ensuring that the detonation cord is securely held and properly directed.

Claim 1

A perforating gun for perforating a casing in a well, the perforating gun comprising: a casing extending along a longitudinal axis; a loading tube configured to fit inside a bore of the casing; plural shaped charges attached to the loading tube; and a detonation cord extending outside the loading tube and ballistically connecting the plural shaped charges, wherein the loading tube includes a retention cutoff formed into a tubular body of the loading tube, such that the detonation cord extends over the retention cutoff. a casing extending along a longitudinal axis; a loading tube configured to fit inside a bore of the casing; plural shaped charges attached to the loading tube; and a detonation cord extending outside the loading tube and ballistically connecting the plural shaped charges, wherein the loading tube includes a retention cutoff formed into a tubular body of the loading tube, such that the detonation cord extends over the retention cutoff.

Google Patents

https://patents.google.com/patent/US12312924

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12312924