Three-phase hypervelocity projectile launcher
Abstract
A hypervelocity projectile launcher for use in perforating borehole casings provides improved penetration into the surrounding rock structure. The launcher includes a first cylinder of explosive material that defines an axial air-filled cavity, a second cylinder of explosive material defining an axial frustum-shaped cavity abutting and axially aligned with the first cylinder. A pliant washer is located between and axially aligned with the first and second cylinders. The frustum shaped cavity is lined with a metal liner effective to form a projectile when the first and second cylinders are detonated. The washer forms a unique intermediate projectile in advance of the liner projectile and enables the liner projectile to further penetrate into and fracture the adjacent rock structure.
- Inventors:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 869631
- Patent Number(s):
- 5370055
- Assignee:
- Regents of University of California, Office of Technology (Alameda, CA)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F42 - AMMUNITION F42B - EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- three-phase; hypervelocity; projectile; launcher; perforating; borehole; casings; provides; improved; penetration; surrounding; rock; structure; cylinder; explosive; material; defines; axial; air-filled; cavity; defining; frustum-shaped; abutting; axially; aligned; pliant; washer; located; cylinders; frustum; shaped; lined; metal; liner; effective; form; detonated; forms; unique; intermediate; advance; enables; penetrate; fracture; adjacent; material defining; provides improved; explosive material; axially aligned; borehole casing; metal liner; shaped cavity; surrounding rock; improved penetration; hypervelocity projectile; metal line; velocity projectile; projectile launcher; axially align; borehole casings; /102/89/175/
Citation Formats
Fugelso, L Erik, Langner, Gerald C, Burns, Kerry L, and Albright, James N. Three-phase hypervelocity projectile launcher. United States: N. p., 1994.
Web.
Fugelso, L Erik, Langner, Gerald C, Burns, Kerry L, & Albright, James N. Three-phase hypervelocity projectile launcher. United States.
Fugelso, L Erik, Langner, Gerald C, Burns, Kerry L, and Albright, James N. Sat .
"Three-phase hypervelocity projectile launcher". United States. https://www.osti.gov/servlets/purl/869631.
@article{osti_869631,
title = {Three-phase hypervelocity projectile launcher},
author = {Fugelso, L Erik and Langner, Gerald C and Burns, Kerry L and Albright, James N},
abstractNote = {A hypervelocity projectile launcher for use in perforating borehole casings provides improved penetration into the surrounding rock structure. The launcher includes a first cylinder of explosive material that defines an axial air-filled cavity, a second cylinder of explosive material defining an axial frustum-shaped cavity abutting and axially aligned with the first cylinder. A pliant washer is located between and axially aligned with the first and second cylinders. The frustum shaped cavity is lined with a metal liner effective to form a projectile when the first and second cylinders are detonated. The washer forms a unique intermediate projectile in advance of the liner projectile and enables the liner projectile to further penetrate into and fracture the adjacent rock structure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}