Sep 1, 2026

US12723479 - Insensitive high explosive based tubing cutter

Provided is a shaped charge for use in a radial cutter. The shaped charge, in one example, includes a circular charge formed into a predetermined shape, the predetermined shape selected to form a concave edge. The circular charge, in this example, is formed from a Triaminotrinitrobenzene based material. The shaped charge, in this example, additionally includes a liner shaped to extend along the concave edge.

Assignee: Halliburton Energy Services, Inc.
Inventors: Christopher C. Hoelscher, Jason Paul Metzger
Filing date: 2019-10-09

explosivesshaped_chargemilitary

The patent describes a shaped charge designed for use in a radial cutter, featuring a disk-shaped charge made from Triaminotrinitrobenzene with a concave edge and a corresponding circular opening. It includes a liner, a circular booster charge with a concave edge, and a flyer plate, all configured to enhance the charge’s effectiveness in cutting applications.

Claim 1

1 . A shaped charge for use in a radial cutter, comprising: a disk-shaped charge having first and second opposing primary surfaces and a concave edge adjoining the first and second opposing surfaces, wherein the disk-shaped charge is formed from a Triaminotrinitrobenzene based material, and further wherein the disk-shaped charge has a corresponding circular opening centered substantially about a centerline thereof, the circular opening having an opening face that is perpendicular to the first and second opposing primary surfaces; a liner shaped to extend along the concave edge; a circular booster charge positioned within the circular opening, wherein the circular booster charge is formed into a shape having a second concave edge, the second concave edge pointed in a same direction as the concave edge of the disk-shaped charge and pointed toward the opening face that is perpendicular to the first and second opposing primary surfaces and pointed in a same direction as the concave edge; and a flyer plate shaped to extend along the second concave edge, the flyer plate located between the circular booster charge and the opening face that is perpendicular to the first and second opposing primary surfaces. a disk-shaped charge having first and second opposing primary surfaces and a concave edge adjoining the first and second opposing surfaces, wherein the disk-shaped charge is formed from a Triaminotrinitrobenzene based material, and further wherein the disk-shaped charge has a corresponding circular opening centered substantially about a centerline thereof, the circular opening having an opening face that is perpendicular to the first and second opposing primary surfaces; a liner shaped to extend along the concave edge; a circular booster charge positioned within the circular opening, wherein the circular booster charge is formed into a shape having a second concave edge, the second concave edge pointed in a same direction as the concave edge of the disk-shaped charge and pointed toward the opening face that is perpendicular to the first and second opposing primary surfaces and pointed in a same direction as the concave edge; and a flyer plate shaped to extend along the second concave edge, the flyer plate located between the circular booster charge and the opening face that is perpendicular to the first and second opposing primary surfaces.

Google Patents

https://patents.google.com/patent/US12723479

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12723479