Synthetic Target Material for Shaped Charge Performance Evaluation, Powdered Metal

Patent metadata

Field	Value
Publication number	US-2019242866-A1
Application number	US-201916386028-A
Country	US
Kind code	A1
Filing date	Apr 16, 2019
Priority date	Aug 28, 2014
Publication date	Aug 8, 2019
Grant date	—

Abstract

A shaped charge target apparatus and method for using a target composed of synthetic material, thereby allowing for repeatable testing at a variety of density and hardness values.

First claim

What is claimed is:

1 . A method for testing a shaped charge comprising:
pressing a powdered material into a disc; sintering the disc; placing the disc proximate to a shaped charge; and firing the shaped charge into the disc.

2 . The method of claim 1 , wherein the disc is between 1 and 4 inches diameter.

3 . The method of claim 1 , further comprising placing a metal plate between the shaped charge and the disc.

4 . The method of claim 1 , further comprising hardness testing the disc.

5 . The method of claim 1 , further comprising stacking one or more discs underneath the first disc to form a plurality of discs.

6 . The method of claim 5 , further comprising placing the plurality discs in a test fixture.

7 . The method of claim 6 , further comprising saturating the plurality of discs with a fluid.

8 . The method of claim 7 , further comprising applying a compressive radial stress to the plurality of discs.

9 . The method of claim 7 , further comprising applying a compressive axial stress to the plurality of discs.

10 . The method of claim 1 , wherein the powdered material including a wax powdered component.

11 . A shaped charge test apparatus comprising:
a first end cap adapted to accept a shaped charge; a second end cap; and a body containing a hollow cylindrical interior holding a plurality of synthetic target discs.

12 . The shaped charge test apparatus of claim 11 further comprising a first reservoir within the body contains a first fluid.

13 . The shaped charge test apparatus of claim 11 further comprising a second reservoir within the first end cap containing a second fluid.

14 . The shaped charge test apparatus of claim 11 wherein the synthetic target discs are composed of sintered powdered material.

15 . The shaped charge test apparatus of claim 14 wherein the powdered material is composed of a metallic powder.

16 . The shaped charge test apparatus of claim 11 wherein a shape charge is oriented to fire through the second fluid and the plurality of synthetic target discs.

17 . The shaped charge test apparatus of claim 11 wherein the second end cap has a through opening.

18 . A shaped charge test apparatus comprising:
a cylindrical fixture with a hollow portion adapted for accepting a plurality of synthetic target cylinders about its outer surface, and having a hallow annulus adapted to accept a perforating gun.

19 . The apparatus of claim 18 wherein the plurality of synthetic target cylinders are perpendicular to the outer surface of the cylindrical fixture.

20 . The apparatus of claim 18 wherein each synthetic target cylinder further comprises a plurality of synthetic targets stacked inside.

21 . The apparatus of claim 20 , wherein each synthetic target comprises a sintered powdered material in a cylindrical shape.

22 . The apparatus of claim 21 , wherein the sintered powdered material comprises powdered iron.

23 . The apparatus of claim 21 , wherein the sintered powdered material comprises powdered carbon.

24 . The apparatus of claim 21 , wherein the sintered powdered material comprises powdered copper.

25 . The apparatus of claim 21 , wherein the sintered powdered material comprises powdered molybdenum.

26 . The apparatus of claim 21 , wherein the sintered powdered material comprises a density of approximately 3.34 g/cc and a hardness of approximately 61.1 HRP.

27 . The apparatus of claim 21 , wherein the sintered powdered material comprises a density of approximately 4.35 g/cc and a hardness of approximately 70.3 HRP.

28 . The apparatus of claim 21 , wherein the sintered powdered material comprises a density of approximately 4.69 g/cc and a hardness of approximately 75.4 HRP.

29 . The apparatus of claim 21 , wherein the sintered powdered material comprises a density of approximately 5.34 g/cc and a hardness of approximately 92.2 HRP.

30 . The apparatus of claim 21 , wherein the sintered powdered material comprises a density range of 2.7 g/cc to 8 g/cc.

31 . The apparatus of claim 21 , wherein the sintered powdered material comprises a hardness range of 48.8593 HRP to 128.1844 HRP.

Assignees

• Hunting Titan Inc

Inventors

• Rudnik Ian Douglas
• Sokolove Christopher Brian
• Montoya Ashton Laura
• Tompkins Morgan

Classifications

• G01N33/227 Primary

  Explosives, e.g. combustive properties thereof · CPC title

• G01N3/08

  by applying steady tensile or compressive forces (G01N3/28 takes precedence) · CPC title

• G01N3/40

  Investigating hardness or rebound hardness · CPC title

• F42B35/00

  Testing or checking of ammunition {(apparatus for measuring the energy of projectiles G01L5/14)} · 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