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1. (WO1992019323) A SYSTEM FOR EXTINGUISHING AN OIL WELL SUBJECTED TO VERY HIGH PRESSURE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1992/019323 International Application No.: PCT/FR1992/000405
Publication Date: 12.11.1992 International Filing Date: 04.05.1992
Chapter 2 Demand Filed: 30.11.1992
IPC:
A62C 3/06 (2006.01) ,A62C 99/00 (2010.01) ,E21B 35/00 (2006.01)
A HUMAN NECESSITIES
62
LIFE-SAVING; FIRE-FIGHTING
C
FIRE-FIGHTING
3
Fire prevention, containment or extinguishing specially adapted for particular objects or places
06
of highly inflammable material, e.g. light metals, petroleum products
A HUMAN NECESSITIES
62
LIFE-SAVING; FIRE-FIGHTING
C
FIRE-FIGHTING
99
Subject matter not provided for in other groups of this subclass
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
35
Methods or apparatus for preventing or extinguishing fires
Applicants:
FERRAYE, Joseph [LB/FR]; FR
Inventors:
FERRAYE, Joseph; FR
Priority Data:
91/0566202.05.1991FR
91/1264809.10.1991FR
Title (EN) A SYSTEM FOR EXTINGUISHING AN OIL WELL SUBJECTED TO VERY HIGH PRESSURE
(FR) SYSTEME D'EXTINCTION DES PUITS DE PETROLE SOUMIS A DE TRES FORTES PRESSIONS
Abstract:
(EN) The invention describes a system for extinguishing fires in oil wells subjected to very high pressures, and cooling of the surrounding ground. The base of the system is, for example, of conical shape resembling a volcano. The flames are stifled by introducing a non-flammable gas (e.g. nitrogen or liquid carbon dioxide) or water into the system through holes (4a, 4b) in the conical section. The turbulent propagation of this gas, achieved by using angle connectors in the system, occurs in the same direction as the flames and is intensified in an upward direction by the conical shape of the system. The outlet via the crater (1) is a form of eruption encompassing all the flames, and nitrogen is directed downward to cool the surrounding ground.
(FR) L'invention concerne un système qui permet l'extinction des puits de pétrole soumis à de très fortes pressions, et le refroidissement du sol environnant; la base du système est par exemple, en forme cônique qui ressemble à un volcan, et agissant par l'asphyxie des flammes, par l'introduction d'un gaz ininflammable (ex. l'azote ou le gaz carbonique liquide) ou d'eau, dans le système, par les trous (4a, 4b) réalisés sur la partie cônique; la propagation de ce gaz en tourbillon, obtenu par l'application de raccords en forme d'angle dans le système, avançant dans le même sens que les flammes, et s'intensifiant en montant par la forme cônique du système, pour sortir par le cratère (1), faisant une sorte d'éruption, envahissant toutes les flammes, et la propulsion de l'azote vers le bas, pour le refroidissement du sol environnant.
Designated States: AU, BB, BG, BR, CA, CS, FI, HU, JP, KP, KR, LK, MG, MN, MW, NO, PL, RO, RU, SD, US
European Patent Office (EPO) (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)