Three-phase hypervelocity projectile launcher

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869631

Fugelso, L Erik ^[1]; Langner, Gerald C ^[1]; Burns, Kerry L ^[1]; Albright, James N ^[1]

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1. Los Alamos, NM

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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Assignee: Regents of University of California, Office of Technology (Alameda, CA)
• Patent Number(s): US 5370055
• OSTI ID: 869631
• Country of Publication: United States
• Language: English

Related Subjects

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/