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1. EP3286401 - RAM ACCELERATOR SYSTEM WITH BAFFLES

Office
European Patent Office
Application Number 16783882
Application Date 21.04.2016
Publication Number 3286401
Publication Date 28.02.2018
Publication Kind B1
IPC
E21B 11/02
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
11Other drilling tools
02Boring rams
E21B 7/00
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
7Special methods or apparatus for drilling
F41A 1/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
1Missile propulsion characterised by the use of explosive or combustible propellant charges
02Hypervelocity missile propulsion using successive means for increasing the propulsive force, e.g. using successively initiated propellant charges arranged along the barrel length; Multistage missile propulsion
F41A 21/30
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
21Barrels or gun tubes; Muzzle attachments; Barrel mounting means
30Silencers
F42D 3/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
42AMMUNITION; BLASTING
DBLASTING
3Particular applications of blasting techniques
04for rock blasting
CPC
E21B 7/007
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
7Special methods or apparatus for drilling
007Drilling by use of explosives
E21B 11/02
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
11Other drilling tools
02Boring rams
E21B 49/04
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
49Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
02by mechanically taking samples of the soil
04using explosives in boreholes; using projectiles penetrating the wall
F41A 1/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
1Missile propulsion characterised by the use of explosive or combustible propellant charges
02Hypervelocity missile propulsion using successive means for increasing the propulsive force, e.g. using successively initiated propellant charges arranged along the barrel length; Multistage missile propulsion
F41A 21/30
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
21Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
30Silencers
F42D 3/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
42AMMUNITION; BLASTING
DBLASTING
3Particular applications of blasting techniques
04for rock blasting
Applicants HYPERSCIENCES INC
Inventors RUSSELL MARK C
ELDER TIMOTHY JOHN
WOLFF JONATHAN M
Designated States
Priority Data 201562150836 21.04.2015 US
Title
(DE) RAMMBESCHLEUNIGERSYSTEM MIT BLENDEN
(EN) RAM ACCELERATOR SYSTEM WITH BAFFLES
(FR) SYSTÈME D'ACCÉLÉRATEUR À EFFET STATO DOTÉ DE DÉFLECTEURS
Abstract
(EN) One or more ram accelerator devices may be used to form one or more holes in geologic or other material. These holes may be used for drilling, tunnel boring, excavation, and so forth. The ram accelerator includes one or more baffles that are downhole. The ram accelerator devices propel projectiles which are accelerated by combustion of one or more combustible gasses in a ram effect to reach velocities exceeding 500 meters per second. An endcap may be deployed within a tube of the ram accelerator device to prevent incursion of formation pressure products such as oil, water, mud, gas, and so forth into a guide tube of the ram accelerator. The endcap may be maintained in place within the hole at least in part by the one or more baffles. During operation the projectile penetrates the endcap and at least a portion thereof impact a working face.
(FR) Un ou plusieurs dispositifs d'accélérateur à effet stato peuvent être utilisés pour former un ou plusieurs trous dans un matériau géologique ou autre. Ces trous peuvent être utilisés pour le perçage, le forage de tunnel, l'excavation, et autres. L'accélérateur à effet stato comprend un ou plusieurs déflecteurs qui sont en fond de trou. Les dispositifs d'accélérateur à effet stato propulsent des projectiles qui sont accélérés par la combustion d'un ou de plusieurs gaz combustibles par un effet stato de manière qu'ils atteignent des vitesses dépassant 500 mètres par seconde. Un capuchon d'extrémité peut être déployé à l'intérieur d'un tube du dispositif d'accélérateur à effet stato pour empêcher une incursion de produits de pression de formation tels que du pétrole, de l'eau, de la boue, du gaz, et autres, dans un tube de guidage de l'accélérateur à effet stato. Le capuchon d'extrémité peut être maintenu en place à l'intérieur du trou au moins en partie par le ou les déflecteurs. Pendant le fonctionnement, le projectile pénètre dans le capuchon d'extrémité et au moins une partie de celui-ci frappe une face de travail.
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